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SFO - KEF

$290 Find cheap flights from San Francisco to Reykjavik-Keflavik Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Reykjavik departing on 7/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 7/11
Thu 7/18

Search hundreds of travel sites at once for deals on flights to Reykjavik-Keflavik Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Reykjavik.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Reykjavik.
In the last 7 days travelers have searched 44,212,782 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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Filter your dealsChoose cabin class, free Wi-Fi and more.

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Cheap flight deals from San Francisco to Reykjavik (SFO-KEF)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Reykjavik that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
7:30 am - 8:15 amSFO-KEF
17h 45m1 stop
9:35 am - 9:16 pmKEF-SFO
18h 41m1 stop
$552WestJet
Find Deal
Wed, Oct 2 - Thu, Oct 10
12:58 am - 4:55 amSFO-KEF
20h 57m2 stops
9:35 am - 9:16 pmKEF-SFO
18h 41m1 stop
Thu, Sep 5 - Sat, Sep 21
11:40 am - 8:35 amSFO-KEF
13h 55m1 stop
9:45 am - 9:27 pmKEF-SFO
18h 42m1 stop
$686Air Canada
Find Deal
Sun, Aug 11 - Tue, Aug 20
8:41 am - 8:35 amSFO-KEF
16h 54m2 stops
10:00 am - 9:31 pmKEF-SFO
18h 31m2 stops
$692Air Canada
Find Deal
Wed, Sep 11 - Wed, Sep 18
6:00 am - 9:30 amSFO-KEF
20h 30m1 stop
11:25 am - 10:38 pmKEF-SFO
18h 13m2 stops
$732Delta
Find Deal
Tue, Oct 8 - Thu, Oct 17
10:15 pm - 6:20 amSFO-KEF
25h 05m1 stop
11:25 am - 9:30 pmKEF-SFO
17h 05m1 stop
$735Delta
Find Deal
Sat, Oct 12 - Wed, Oct 23
6:30 am - 7:00 amSFO-KEF
17h 30m2 stops
11:00 am - 8:57 pmKEF-SFO
16h 57m2 stops
$747United Airlines
Find Deal
Mon, Oct 7 - Tue, Oct 22
5:15 am - 8:30 amSFO-KEF
20h 15m1 stop
10:00 am - 8:37 pmKEF-SFO
17h 37m1 stop
$760United Airlines
Find Deal
Mon, Aug 12 - Fri, Aug 23
6:00 am - 10:00 amSFO-KEF
21h 00m2 stops
11:05 am - 1:15 pmKEF-SFO
33h 10m1 stop
$768British Airways
Find Deal
Sun, Sep 29 - Wed, Oct 9
6:00 am - 10:00 amSFO-KEF
21h 00m2 stops
11:05 am - 9:53 amKEF-SFO
29h 48m2 stops
$789British Airways
Find Deal
Sun, Sep 29 - Wed, Oct 9

Flights from San Francisco to Reykjavik - Travel Insights & Trends

Get data-powered insights and trends into flights from San Francisco to Reykjavik to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from San Francisco to Reykjavik-Keflavik Airport?

The average price of all flights from San Francisco to Reykjavik Keflavik Intl Airport clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from San Francisco to Reykjavik-Keflavik Airport, look for departures on Mondays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Reykjavik-Keflavik Airport, Monday is the cheapest day to fly and Saturday is the most expensive.

What is the cheapest month to fly from San Francisco to Reykjavik Keflavik Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from San Francisco to Reykjavik Keflavik Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from San Francisco to Reykjavik Keflavik Intl Airport is February, where tickets cost $868 on average. On the other hand, the most expensive months are July and June, where the average cost of tickets is $1,260 and $1,098 respectively.

How far in advance should I book a flight from San Francisco to Reykjavik Keflavik Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from San Francisco to Reykjavik Keflavik Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from San Francisco to Reykjavik Keflavik Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 80 days before departure.

Which airlines provide the cheapest flights from San Francisco to Reykjavik-Keflavik Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from San Francisco to Reykjavik-Keflavik Airport found on KAYAK was with WestJet for $295. WestJet proposed a round-trip connection from $552 and Air Canada from $686.

Good to know

Low season

January

High season

June

Cheapest flight

$290
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from San Francisco to Reykjavik-Keflavik Airport

When to book flights from San Francisco to Reykjavik

Are your dates flexible? Find out the best times to travel from San Francisco to Reykjavik based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking San Francisco to Reykjavik-Keflavik Airport flights

  • Which airline offers environmentally friendly options for flying from San Francisco to Reykjavík?

    By investing in new, fuel-efficient aircraft and putting numerous sustainability programs into place, SAS and Icelandair have been actively working to become more environmentally friendly for flights from San Francisco to Reykjavík.

  • How can I travel to my location from Keflavik International Airport (KEF)?

    From the airport, you can board the “Straetó” bus to travel to Reykjavík and other Icelandic cities. At the airport, taxis are also easily accessible. You can find them right outside the terminal building. This option provides easy access and direct transportation to your location. If having your own vehicle gives you more flexibility, you can rent one from one of the car rental firms located at the airport.

  • Can I upgrade a class for flights from San Francisco to Reykjavík?

    Yes – you can upgrade to a better class on United Airlines, Icelandair, Delta Air Lines, and SAS (Scandinavian Airlines). These airlines enable passengers to upgrade to a higher class, subject to availability, either at the time of booking or closer to the departure date. Additionally, upgrading your ticket to a higher class is possible by using miles or points.

  • Where do flights from San Francisco to Reykjavík's layovers often take place?

    The majority of San Francisco to Reykjavík flights make a stopover at one of the following locations: Copenhagen (CPH) for SAS Airlines, Minneapolis (MSP), New York (JFK) for Delta Air Lines, or Chicago (ORD) for United. If you choose to take a flight with Air Canada, you will make a stop in one of the following cities: Toronto (YYZ), Montreal (YUL), or Vancouver (YVR), and then connect to Reykjavík (KEF).

  • What is the cheapest flight from San Francisco to Reykjavik Keflavik Intl Airport?

    In the last 3 days, the lowest price for a flight from San Francisco to Reykjavik Keflavik Intl Airport was $290 for a one-way ticket and $552 for a round-trip.

  • Do I need a passport to fly between San Francisco and Reykjavik-Keflavik Airport?

    Yes

  • Which aircraft models fly most regularly from San Francisco to Reykjavik-Keflavik Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Francisco to Reykjavik-Keflavik Airport?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between San Francisco and Reykjavik-Keflavik Airport, with Star Alliance being the most commonly used for this route.

  • What is the most popular layover when flying to Reykjavik-Keflavik Airport from San Francisco?

    Seattle is the most popular layover city among KAYAK users traveling from San Francisco to Reykjavik-Keflavik Airport.

  • Which is the best airline for flights from San Francisco to Reykjavik, Delta or JetBlue?

    The two airlines most popular with KAYAK users for flights from San Francisco to Reykjavik are Delta and JetBlue. With an average price for the route of $917 and an overall rating of 8.0, Delta is the most popular choice. JetBlue is also a great choice for the route, with an average price of $1,382 and an overall rating of 7.6.

  • How does KAYAK find such low prices on flights from San Francisco to Reykjavik-Keflavik Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Reykjavik-Keflavik Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Reykjavik-Keflavik Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reykjavik-Keflavik Airport from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Reykjavik-Keflavik Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Reykjavik-Keflavik Airport with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and KEF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Reykjavik-Keflavik Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Reykjavik-Keflavik Airport from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from San Francisco to Reykjavik Keflavik Intl Airport

  • When you choose to book your flights through Alaska Airlines, which operates from San Francisco International Airport (SFO) as its hub, there are several benefits. You have a great chance of finding a flight that fits conveniently with your travel plans due to the availability of daily flights connecting San Francisco and Reykjavík.
  • Icelandair, United Airlines, Delta Air Lines, and Air Canada provide reservations for passengers with disabilities, particularly those with limited mobility. These airlines offer specialized services to accommodate passengers with impairments, including mobility assistance, priority boarding and disembarking, wheelchair-accessible seating options, and trained staff to assist them during their travel.
  • Airlines such as Icelandair, Delta Air Lines, SAS (Scandinavian Airlines), United Airlines, Alaska Airlines, and Air Canada cater to families traveling with children on flights from San Francisco to Reykjavík. These carriers provide various amenities like children's meals, activity kits, and entertainment options specifically designed to keep young travelers happy and engaged during the journey.
  • There are several airlines that let passengers bring pets on board for flights from San Francisco to Reykjavík, including SAS, Air Canada, Lufthansa United, and Icelandair. Larger animals can be carried in the airplane hold as checked luggage. The pet carrier must be leak-proof and sufficiently ventilated to guarantee the pet's comfort and safety.
  • When traveling from San Francisco to Reykjavík with a considerable amount of luggage, it's recommended to choose an airline with more flexible carry-on baggage policies. For instance, Icelandair permits passengers to carry a personal item and a carry-on bag into the cabin, with a maximum weight limit of 70 lbs. per bag.
See more tips

Top 5 airlines serving from San Francisco to Reykjavik

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Reykjavik. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Reykjavik? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10277 reviews
8.2Boarding
8.0Entertainment
7.4Food
7.9Comfort
8.6Crew
Airline reviews

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

4.0 OkayBrooke, Jun 2024SFO - MSP
Read more about Delta reviews

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Honestly, I didn’t expect that I will experience this long time wait during the check in. There was only one person who was taking care of the passengers for the economy class and it took us to wait about one hour to do our check i. As a result we barely get to the airplane as the gate was at the end of the airport. That is totally not professional where one crue is working at the registration desk with economy and 3-4 crues are helping for the business class.

Other than a delay that had nothing to do with the staff, it was a very pleasant experience.

SAS is the representation of the Scandinavian minimalism, which I like. I wished they had a more relaxed policy on free water distribution beyond one bottle (500 ml) per person and two drinks, including water, per overseas flight.

TERRIBLE! Staff was unfriendly, rude, and demeaning. One flight attendant touched me to grab the complimentary blanket off my neck because I couldn't take it home, while a bunch of other people took theirs home. I have never been so ill treated. I am not happy at all. And flight was delayed, no information until short notice for everything. Lost an entire day at my destination. I expect a full refund for that experience. Never will fly with them EVER again

My return flight has been changed to JFK from EWR without any notice or reason

I upgraded to economy plus and it’s so worth the price. The crew is exceptional and the food is pretty decent. I would definitely fly with them again.

They lost my luggage. Tromso in winter without warm clothes is not fun.

The flight was on time and loading was fine. I really disliked that all drinks other than coffee or tea had a cost. Deplaning was also an issue as people did not wait for those in front of them to get out before they pushed forward

Flight was delayed 3 hours. Pilot cancelled flight under 4 people volunteered to change their seats to economy from business class.

I paid for wifi and it worked about a total of 5 min. Feel ripped off

I couldn’t make it to the airport for my original flight due to bad weather; roads were shut down, buses and trains were closed. Since the plane wasn’t cancelled, I still had to pay $720 to change my ticket.

The entertainment wasn’t playing in the app or online.

Why does it have to be painful to fly long distances?

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

Food is very bad and entertint not too many options ... flight attendet service is not good

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

Aisle chair was good and liked the foot bar preventing you from putting your foot in the isle, The breakfast on this international flight to Zurich was horrible (Europeans, specially, used to good food) may make this a dealbreaker for booking with United Airlines again. I agreed with my Spanish fellow passenger.

On time take off…US cabins look tired and need of refresh!

Backpack should NOT allowed put in the flight bin , only put it under the seat. I can't find space put my carry on luggage!!! and I pay for it ! that was very bad experience

Hated every minute of it. This flight should have only taken 1.5hrs but was delayed over 10hours. Now I am being told I cannot be compensated or refunded my ticket price or extra leg room, which I purchased but did not receive, because the airline is throwing the blame on the 3rd party I purchased tickets through and 3rd party putting the blame on airline. No one wants to help. They received their money and that's all they care about. Im going on 3 days of still trying to get to my final destination, had to cancel car rental, car insurance and hotel. Currently staying in airport until hotels open up. Thank you Lufthansa, Kayak, Underpricer and United for making this trip the worst ever.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

My experience with Icelandair was just ok, nothing special. Requested wheelchair service for my wife and none was offered at checking in Baltimore or available for her upon arrival at Gatwick airport in London.

Decent service - nice seats. Crew were not overly attentive but can’t complain overall for the money

Very nice flight, easy connections in Keflavík, and friendly crew.

I will never fly this airline again. Checking in was poor , we had to go back to the check in counter at Raleigh - Durham international airport three times because they didn’t issue my boarding pass but rather duplicated my husband’s twice which caused a big headache at the passport control at the airport which triggered security alert and wouldn’t let us pass through we we had to wait for long time to be able to explain and clear everything after talking to the supervisor.. No food on the plane , not even crackers. No food was offered to buy ether . No ear phone was provided . Very little time to make from one plane to another and nobody to assist with smooth transition. Flight itself , we felt safe so thank you to the pilots . But customer service was terrible . We spent $ 2500 on 2 tickets, so I cannot say that service was consistent with the price .

Seats are way too much now with these new airplanes especially long flights like we had. I was 7 month pregnant and in a lot of discomfort due to small seats.

Food was horrible. This wasn’t business class. No leg space, can’t sleep in row position, huge delay

I liked how easy my transfers between flights in Keflavik were. I would have appreciated more food options in Keflavik.

The plane was flaming hot! Could not breathe. Everyone coughing from heat. Awful.

My biggest problem was the flight from KEF to DUB was delayed, which caused me to miss my connecting flight in DUB and we were forced into an unplanned 10-hour layover in DUB. Crew and boarding staff were all very friendly but this was a real inconvenience and especially uncomfortable for my disabled wife.

Not much! This was my first flight with Iceland air and unfortunately it wasn’t what I have expected. My luggage is lost nothing as of yet where it was left. Not a good service at all!!

I love air Canada. The staff is so helpful and friendly and attentive. I paid for extra room but chose a ser near a person who took up a lot of space which gave me less space than regular economy, I was sad I did that!

No meal. Flight crew was wonderful, happily finding me storage for my guitar. THANK YOU!!!

Flight was delayed for almost 3 hours. Communication of gate change was poor. Email and screen said one gate and it was a different gate from that. Gate changed first to 64 B and then to 64 C. Originally it was 68B. 64C was not communicated properly!

Plenty of room in the exit row. Sat on the plane an hour before taking off.☹️ Landed late and had to wait for gate availability.

Flight was on time early arrival better entertainment good staff.everything was excellent

They canceled the flight on us very close to the flight date .

My experience was pretty frustrating because the first leg of my flight on United (though booked through Air Canada) was delayed causing me to miss my connecting flight on Air Canada. This could have been an easy solve as there was a direct flight later that morning via Air Canada that they easily could have put me on which would have only gotten me to my destination 2 1/2 hours later but because United and Air Canada don’t seem to have good communication they gave me the run around both telling me to talk with the other which I did three times to no avail. I ended up taking the delayed flight and getting on a new connecting flight which ended up getting me to my destination 6 hours later and I missed the event I was planning to go to this evening.

Everything went smoothly and as expected. We were on time and one flight arrived early.

This is not a Business Class equipped airplane and even the crew apologize before take over BUT BUT Air Canada charged full business class fare

Very good other than we have to wait for one crew and we’re delayed and the pilot and his co- pilot has to make a difference to be right on time arrival. Disappointed about no food service also.

Book cheap flights from San Francisco to Reykjavik

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from San Francisco to Reykjavik found on KAYAK in the last 72 hours.
7/15Mon
2 stops
20h 56mSFO-KEF
$290
7/9Tue
1 stopWestJet
31h 10mSFO-KEF
$295
7/8Mon
1 stopWestJet
17h 45mSFO-KEF
$304
7/15Mon
1 stopJetBlue
17h 27mSFO-KEF
$622
9/21Sat
1 stopJetBlue
17h 05mSFO-KEF
$625
7/18Thu
1 stopAir Canada
17h 05mSFO-KEF
$650
7/7Sun
2 stopsUnited Airlines
24h 45mSFO-KEF
$655
7/8Mon
2 stopsUnited Airlines
23h 48mSFO-KEF
$660
7/12Fri
1 stopDelta
23h 14mSFO-KEF
$676
6/17Mon
2 stopsAir Canada
17h 10mSFO-KEF
$809

Search by stops

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Last minute flights from San Francisco to Reykjavik

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from San Francisco to Reykjavik that are departing in the next 10 days.
6/13Thu
multi-stopAir Canada
33h 10mSFO-KEF
6/18Tue
multi-stopAir Canada
20h 27mKEF-SFO
$895
6/12Wed
multi-stop
17h 05mSFO-KEF
6/19Wed
multi-stop
18h 01mKEF-SFO
$913
6/12Wed
multi-stopUnited Airlines
12h 35mSFO-KEF
6/19Wed
multi-stopUnited Airlines
29h 59mKEF-SFO
$1,018
6/12Wed
multi-stopUnited Airlines
14h 25mSFO-KEF
6/19Wed
multi-stopUnited Airlines
15h 40mKEF-SFO
$1,027
6/14Fri
multi-stopIcelandair
17h 07mSFO-KEF
6/20Thu
multi-stopIcelandair
14h 35mKEF-SFO
$1,256
6/13Thu
multi-stopDelta
23h 53mSFO-KEF
6/21Fri
multi-stopDelta
16h 20mKEF-SFO
$1,699
6/15Sat
multi-stopIcelandair
12h 19mSFO-KEF
6/21Fri
multi-stopIcelandair
18h 40mKEF-SFO
$3,528
6/13Thu
multi-stopDelta
17h 31mSFO-KEF
6/24Mon
multi-stopDelta
21h 07mKEF-SFO
$5,323
6/14Fri
multi-stopScandinavian Airlines
23h 10mSFO-KEF
6/21Fri
multi-stopScandinavian Airlines
35h 45mKEF-SFO
$10,301
6/15Sat
multi-stopScandinavian Airlines
33h 40mSFO-KEF
6/21Fri
multi-stopScandinavian Airlines
35h 45mKEF-SFO
$10,304

Search by stops

Search by airline

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San Francisco - Reykjavik-Keflavik Airport Flights

Departure:

San Francisco (SFO)United States

Destination:

Reykjavik-Keflavik Airport (KEF)Iceland

Return flight deals:

Reykjavik-Keflavik Airport - San Francisco

Cabin classes: