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SFO - YXU

$214 Find Cheap Flights from San Francisco to London

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 London departing on 12/18. 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.
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Search hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to London, as well as popular online travel agencies
In the last 7 days travelers have searched 46,479,581 times on KAYAK, and here is why:

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Cheap Flight Deals from San Francisco to London (SFO-YXU)

 
These are the cheapest deals for flights from San Francisco to London currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from San Francisco to London

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from San Francisco to London.

Recent one-way flight deals from San Francisco to London

Only flying one-way? Below are some of the best one-way flight deals from San Francisco to London found on KAYAK recently.

Recent last minute flight deals from San Francisco to London

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from San Francisco to London.

Recent direct flight deals from San Francisco to London

The latest deals for direct flights from San Francisco to London so you can sit back and relax without the need for a layover.

Cheap bus & train deals from San Francisco to London

Find recent round-trip train or bus tickets from San Francisco to London.

All round-trip flight deals to London

The cheapest plane tickets to London found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
10:50 pm - 8:20 pmSFO-YXU
18h 30m2 stops
9:55 am - 11:03 pmYXU-SFO
16h 08m2 stops
$871United Airlines
Find Deal
Sun, Dec 15 - Sun, Dec 22
4:25 pm - 9:15 amSFO-YXU
13h 50m1 stop
9:55 am - 11:03 pmYXU-SFO
16h 08m2 stops
$938United Airlines
Find Deal
Sun, Dec 15 - Sun, Dec 22
4:25 pm - 9:15 amSFO-YXU
13h 50m1 stop
9:55 am - 9:42 pmYXU-SFO
14h 47m1 stop
$954Air Canada
Find Deal
Sun, Dec 15 - Sun, Dec 22
1:30 pm - 7:12 pmSFO-YXU
26h 42m3 stops
8:00 pm - 12:24 pmYXU-SFO
19h 24m2 stops
$2,124
Find Deal
Sun, Dec 15 - Sun, Dec 22
3:03 pm - 11:20 amSFO-YXU
41h 17m2 stops
Wed, Dec 18
7:05 am - 9:15 amSFO-YXU
23h 10m2 stops
$259United Airlines
Find Deal
Mon, Dec 16
7:00 pm - 7:12 pmSFO-YXU
21h 12m2 stops
Sun, Dec 15
10:45 pm - 9:15 amSFO-YXU
7h 30m1 stop
$284Air Canada
Find Deal
Mon, Dec 16
4:25 pm - 9:15 amSFO-YXU
13h 50m1 stop
$307Air Canada
Find Deal
Sun, Dec 15
2:34 pm - 11:20 amSFO-YXU
17h 46m2 stops
Thu, Dec 19
11:59 pm - 11:20 amSFO-YXU
32h 21m2 stops
Sat, Dec 21
8:25 am - 8:20 pmSFO-YXU
8h 55m1 stop
$499Air Canada
Find Deal
Wed, Dec 18
5:00 am - 8:20 pmSFO-YXU
12h 20m2 stops
$509United Airlines
Find Deal
Fri, Dec 20
1:55 pm - 7:12 pmSFO-YXU
26h 17m1 stop
$551WestJet
Find Deal
Thu, Dec 19

Flights from San Francisco to London - Travel Insights & Trends

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

Which airlines provide the cheapest flights from San Francisco to London?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on United Airlines ($259) and Air Canada ($284). The cheapest round-trip tickets were found on United Airlines ($871) and Air Canada ($954).

Good to know

Low season

February

High season

June

Cheapest flight

$214
Best time to beat the crowds with an average 61% drop in price.
Most popular time to fly with an average 55% increase in price.
Flight from San Francisco to London

When to book flights from San Francisco to London

Are your dates flexible? Find out the best times to travel from San Francisco to London 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 flights from San Francisco to London

  • What is the cheapest flight from San Francisco to London?

    In the last 3 days, the lowest price for a flight from San Francisco to London was $214 for a one-way ticket and $871 for a round-trip.

  • Do I need a passport to fly between San Francisco and London?

    Yes, you'll most likely have to show a valid passport before boarding the plane in San Francisco and on arrival in London.

  • Which airports will I be using when flying from San Francisco to London?

    On your way to London, you’ll fly out from San Francisco. You’ll be landing at London.

  • Which aircraft models fly most regularly from San Francisco to London?

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

  • Which airline alliances offer flights from San Francisco to London?

    Star Alliance is the only airline alliance operating flights between San Francisco and London.

  • Which is the best airline for flights from San Francisco to London, WestJet or Air Canada?

    The two airlines most popular with KAYAK users for flights from San Francisco to London are WestJet and Air Canada. With an average price for the route of $501 and an overall rating of 7.3, WestJet is the most popular choice. Air Canada is also a great choice for the route, with an average price of $765 and an overall rating of 7.0.

  • How does KAYAK find such low prices on flights from San Francisco to London?

    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 London.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London 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 London?

    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 London with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and YXU 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 London?

    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 London 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

Top airlines flying from San Francisco to London

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to London. 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 London? 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.
7.3
WestJetOverall score based on 2804 reviews
7.5Boarding
7.9Crew
6.2Food
7.1Comfort
6.2Entertainment
Airline reviews

Your staff on the flight back to Calgary were very friendly and efficient .

10.0 ExcellentAnonymous, Oct 2024PSP - YYC
Read more WestJet reviews

Your staff on the flight back to Calgary were very friendly and efficient .

The big lady was sitting right next to me and the button to recline my seat was blocked by her huge arm. No power outlet for chargers. No inflight Wi-Fi movies

Trip was uneventful which is good. Boarding took a long time due to many disabled/elderly requiring assistance which again is fine. Landing and take off were excellent. Food and entertainment were as expected, bring your own if you have preferences otherwise you get what you get.

Check in agent was good, stewardess was unfriendly and certainly did not have the care of the passengers in mind Spent the whole time on her phone

The flight was on time - which is good. But pretty much every other aspect of the experience was bad. They charged 55$ for a carry on bag!

Flight was old and the seats were not comfortable at all. They made me pay 55$ to take my carry-on bag onboard.

Wasn’t able to purchase wifi for entertainment so the flight was long

It was a swoop flight at a west jetfare… the plane was literally a swoop branded plane.. I pay extra to NOT fly the budget carriers like swoop and flair so needless to say I was annoyed when both my outgoing and return flight were on swoop planes.

Okay but not like typical first or business class. On domestic airlines

I liked the kindness of the check in counter crew, the flexibility with changing seats and the comfort. Better free drink selection would have been good but it wasn't a long flight.

Hated charging my devices. The location of the outlet was inconvenient. And no USB connection. So outdated.

Flight took off little late and landed back at YVR after an hour without informing a reason to the passengers. Also, second time also got late but an hour to take off. Therefore, I had to change my plans during due to delay in landing to SFO roughly about 6 to 7 hours.

. Crew was professional and friendly. Food could have been hotter

Our flight AC 567 was delayed by almost 6 hrs due to mechanical falure

Terrible. They cancelled our flight the night before. Please give me a call to discuss.

Very pleasant crew! Good entertainment options. Water wasn’t working in the bathrooms, but they were able to fix it. Just had to stand with sticky soap hands for 20min….

I did not appreciate being scolded by the captain himself, and being told my dog could die, in front of my daughter.

This is the first and the last time I ever fly Air Canada. The seats were extremely uncomfortable, no leg room. My back was throbbing by the time the flight was over. I payed both flights up and back for internet and both times had trouble connecting all while the clock was ticking on my payed subscription. Here's the worst part which I have never experienced on a flight before. the flight attendant would walk down the aisle with the drink cart and only give out drinks to selected passengers. This was not a big plane, there were not that many passengers! We were totally ignored, I had to ask three times for my husband to get a drink. My son and his girlfriend were sitting across the isle from us and received a snack but we were never offered a snack or anything. My son's girlfriend had children sitting behind her who were continually kicking her seat the entire flight. I have never wrote a negative review for an airline before but after spending my money for four seats I was extremely disappointed in your service.

Flight was canceled 2 hours ahead. Just as I arrived at the airport

It’s very good.. keep up the good job!!! Thank U.

Book cheap flights from San Francisco to London

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from San Francisco to London found on KAYAK in the last 72 hours.
12/18Wed
2 stops
41h 17mSFO-YXU
$214
12/16Mon
2 stopsUnited Airlines
23h 10mSFO-YXU
$259
12/15Sun
2 stops
21h 12mSFO-YXU
$262
12/16Mon
1 stopAir Canada
7h 30mSFO-YXU
$284
12/15Sun
1 stopAir Canada
13h 50mSFO-YXU
$307
12/19Thu
2 stops
17h 46mSFO-YXU
$363
12/21Sat
2 stops
32h 21mSFO-YXU
$452
12/18Wed
1 stopAir Canada
8h 55mSFO-YXU
$499
12/20Fri
2 stopsUnited Airlines
12h 20mSFO-YXU
$509
12/19Thu
1 stopWestJet
26h 17mSFO-YXU
$551

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Everything you need to know for your flight from San Francisco to London

Information on your arrival and departure airports