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OSL - SEA

$327 Find cheap flights from Oslo Airport to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Oslo Gardermoen to Seattle departing on 8/23. 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
Sat 6/29
Sat 7/6

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Oslo to Seattle.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Oslo to Seattle.
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

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Cheap flight deals from Oslo Gardermoen to Seattle (OSL-SEA)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Oslo Gardermoen to Seattle 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
7:10 am - 9:57 pmOSL-SEA
23h 47m2 stops
10:52 pm - 10:10 pmSEA-OSL
38h 18m2 stops
$448British Airways
Find Deal
Thu, Jun 13 - Thu, Jun 27
11:45 am - 11:30 amOSL-SEA
32h 45m1 stop
8:30 am - 11:25 pmSEA-OSL
29h 55m2 stops
$461American Airlines
Find Deal
Wed, Jun 12 - Tue, Jun 18
5:05 pm - 7:48 pmOSL-SEA
35h 43m2 stops
8:30 am - 11:25 pmSEA-OSL
29h 55m2 stops
$471American Airlines
Find Deal
Wed, Jun 12 - Tue, Jun 18
6:35 am - 12:25 pmOSL-SEA
14h 50m1 stop
6:45 am - 6:00 pmSEA-OSL
26h 15m2 stops
$489United Airlines
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Thu, Jun 13 - Thu, Jun 27
6:30 am - 11:20 amOSL-SEA
13h 50m1 stop
1:35 pm - 11:50 amSEA-OSL
13h 15m1 stop
$521Air France
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Wed, Jun 12 - Tue, Jun 18
11:50 am - 10:20 amOSL-SEA
31h 30m1 stop
6:05 pm - 4:20 pmSEA-OSL
13h 15m1 stop
$561Delta
Find Deal
Thu, Jun 13 - Thu, Jun 27
4:30 pm - 11:20 amOSL-SEA
27h 50m1 stop
6:55 pm - 3:25 pmSEA-OSL
11h 30m1 stop
$592Icelandair
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Wed, Aug 14 - Thu, Sep 5
6:40 am - 6:42 pmOSL-SEA
21h 02m2 stops
6:45 am - 5:20 pmSEA-OSL
25h 35m3 stops
$668United Airlines
Find Deal
Wed, Aug 14 - Thu, Sep 5
4:30 pm - 8:35 pmOSL-SEA
13h 05m1 stop
11:00 pm - 12:35 pmSEA-OSL
28h 35m1 stop
$761Icelandair
Find Deal
Fri, Jun 21 - Mon, Jun 24
6:30 am - 11:20 amOSL-SEA
13h 50m1 stop
1:35 pm - 11:50 amSEA-OSL
13h 15m1 stop
$1,249Air France
Find Deal
Sat, Jun 29 - Wed, Jul 31

Flights from Oslo Gardermoen to Seattle - Travel Insights & Trends

Get data-powered insights and trends into flights from Oslo Gardermoen to Seattle 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 Oslo Airport to Seattle?

The average price of all flights from Oslo Gardermoen Airport to Seattle clicked on KAYAK for each day over the last 12 months.
When flying from Oslo Airport to Seattle, you should consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to Oslo Airport, you’ll find the best rates on Thursdays and the most expensive ones on Fridays.

What is the cheapest month to fly from Oslo Gardermoen Airport to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Oslo Gardermoen Airport to Seattle, 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 Oslo Gardermoen Airport to Seattle is November, where tickets cost $416 on average. On the other hand, the most expensive months are August and July, where the average cost of tickets is $840 and $823 respectively.

How far in advance should I book a flight from Oslo Gardermoen Airport to Seattle?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Oslo Gardermoen Airport to Seattle, 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 Oslo Gardermoen Airport to Seattle, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 53 days before departure.

Which airlines provide the cheapest flights from Oslo Airport to Seattle?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Oslo Airport to Seattle were found on British Airways ($448) and American Airlines ($461). Icelandair proposed the cheapest one-way flight at $434.

Good to know

Low season

January

High season

June

Cheapest flight

$327
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Oslo Airport to Seattle

When to book flights from Oslo Gardermoen to Seattle

Are your dates flexible? Find out the best times to travel from Oslo Gardermoen to Seattle 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 Oslo Airport to Seattle flights

  • What is the cheapest flight from Oslo Gardermoen Airport to Seattle?

    In the last 3 days, the lowest price for a flight from Oslo Gardermoen Airport to Seattle was $327 for a one-way ticket and $448 for a round-trip.

  • Do I need a passport to fly between Oslo Airport and Seattle?

    Yes

  • Which aircraft models fly most regularly from Oslo Airport to Seattle?

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

  • Which airline alliances offer flights from Oslo Airport to Seattle?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Oslo Airport and Seattle, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Oslo to Seattle, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Oslo to Seattle are Delta and American Airlines. With an average price for the route of $789 and an overall rating of 8.0, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $628 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Oslo Airport to Seattle?

    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 Oslo Airport to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Oslo Airport to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Oslo Airport 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 Oslo Airport to Seattle?

    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 Seattle with an airline and back to Oslo Airport with another airline. Booking your flights between Oslo Airport and SEA 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 Oslo Airport to Seattle?

    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 Seattle from Oslo Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Oslo Gardermoen to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Oslo to Seattle. 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 Oslo Gardermoen to Seattle? 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 10457 reviews
7.9Comfort
8.6Crew
8.2Boarding
8.0Entertainment
7.4Food
Airline reviews

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

10.0 ExcellentDonald, May 2024FLL - SEA
Read more about Delta reviews

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

Delta is one of the best airlines I have flown

It was a Red-Eye flight so was not comfortable enough to sleep, but seat was as expected. Crew was great and in-flight entertainment was excellent. Flight was smooth

Standard economy seats on Deltas 767 were better than Alaska premium seats on their 737 MAX9; more legroom, wider seats. Entertainment was great, no ipad or phone required. Could have included a meal service.

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

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

Flight was on time, the crew was personable & professional, & the plane arrived early which was nice.

This flight landed early, but deplaned late. We were stuck sitting and waiting for a gate for over an hour

My flight was very clean and the location was comfortable. The service was great. A satisfying flight!

I appreciated being upgraded. I was very disappointed with my 13 hr layover in Seattle to geg, while my friends who flew Alaska made it home as scheduled. I had to reserve a hotel on my dime.

28 hour delay at Fort Worth/Dallas airport, part due to weather which was unavoidable, but various other reasons - no pilot, no fa, mechanical problem, plane too small, too big, crew out of flying time, seat configuration problems.... endless and hourly updates with a different excuse. Finally told us about 3.00 am, that the flight was delayed to hours later.

Experience was bad. 3.5 hour delay for a 2.5 hour trip. There was no r Transparency about the reason for the delay and it was done 30 mins at a time.

The boarding process and flight were great. However, I waited about 40 minutes for my luggage. It did not come up on the designated belt. Instead, everyone’s bags were on a cart. Not sure what the issue was, but we were not informed until another passenger went looking for her bags and found them.

There were delays on both ends. It made it less than excellent. This plane was great though

AA1537 the AC was not working properly. It was very hot and uncomfortable.

Worst experience flying American Airlines. I fly with them often, so I was super disappointed in the service I received at gate 30 in LGA on May 24, mid-day. The flight was delayed twice. I was patiently waiting in the American Airlines lounge when I received the notice on my app that the plane was boarding 45 minutes before its newly re-scheduled take off of 4 pm (from the orginal 1:45 pm then 3:00 pm). It took me 5 min to travel from the lounge to the gate and when I arrived there at 3:20 flight gate attendant told me the flight had closed and that they announced for passengers multiple times. I showed them the notification on my app and they were really rude and unempathetic. The person who rescheduled my flight at customer service wasn't any happier but was at least helpful in getting me on the next flight.

Flight was 1/2 hour delayed leaving Phoenix. Otherwise it was an average flight. Flight crew on this trip was very nice.

Everything was great except for the wifi was junk. Crew was super friendly and helpful

Was lucky to have a employee at the AA checkin counter that had compassion and understood they ordeal that we went through with our original flight being diverted, needing to stay in the aircraft and then flying to the original destination; adding hours to the trip and forcing us to miss our connection and our rebooked connection. She was able to get up on standby on the highest priority on the next flight to the closest airport we need to be at and it all worked out despite being many hours late.

We were redirected to a near by city due to weather and had to stay in the aircraft before flying to the original destination's airport. The whole delay added 3+ hours and were were not offered any snacks or water.

So Iceland Air is one step above Spirit Airlines. They do not feed you unless you pay for it or are in Saga Class. So, bring your food. They have a drink service, but it's in a large Dixie cup. Ask for the can, that is the only way you'll get a real drink. Also, we missed our connecting flight so they put us up in a flea-bag motel. Don't get me wrong, the staff was nice and friendly, however, there was no shower gel or shampoo in the hotel. We have to go to the corner store to pick some up. The room was not in great shape. Holes in the bathroom, a badly repaired ceiling in the room. The window was warn out. So, you get the just of how bad it was.

I didn't have food nor entertainment. Lots of leg room and seat was comfortable

Food and staff were excellent. Seats on Saga (business class) are comparable to domestic first class of US Airlines, regarding space and recline. Entertainment options had little international component.

Flight delayed Delay to the gate upon arrival Baggage took more than an hour so we missed our connecting!!! Terrible experience!

There is no food without paying $. Only soft drinks are included in your fare.

Some drinks and basic snack will be good. Water should be served at least once an hour. Blankets for folks who might be cold.

Pros: "Flight was relatively empty. Professional crew, comfortable seats"
Cons: "I think they skipped me with food service. Checking up on passengers who may have been sleeping would be nice. Headphones need to be purchased. Limited entertainment options."
Cons: "Communication about international COVID requirements before the day of departure."
Pros: "My seat cushion was out of alignment so not great. But I like the two side seat configuration."
Cons: "Boarding is a zoo. Board by row. It’s faster."
Pros: "Icelandair crew were very hospitable and accompodating"
Cons: "I have never sat in such a narrow seat. Literally could not put my hand down the side to pull out my seat belt. Two days later I still have sores from where the side of the seats hit my hips. Did not even provide complimentary peanuts."

Efficient boarding. Good flight but seats were quite uncomfortable considering we'd already been sitting on two flights, total 13 hours or so. Would have liked to have prices on the menu of amenities on the plane. We could have used more water. Restrooms and nonalcoholic beverages at no extra cost, not much else. I realize these were discount tickets, and the airline has to break even, so I can't say we were expecting amenities to be plentiful. Still, it's nice with long flights to discover a few. Very pleasant crew though.

Will try to not fly with them again. Delays because of weather but got redirected to an airport where I could not make connection.

Staff didn’t care in business class. Closed the door on my mom while she was on the jetbridge and flight attendant told me she would make it from the connecting flight. They lied. My luggage was damaged on arrival. No success in filing damage claim.

Crew was super rude in business class. Not friendly or helpful. Luggage was damaged and was told to file with United and that was unsuccessful.

The connection at Frankfurt was chaotic and nearly missed the flight to Atlanta. They made was wait for busses to transfer and it took ages

There was a screaming child just behind our seats. This prevented us from getting any sleep during the night!!

At Muchin the service woman for Lufthansa at the Airport was really horrible.

my flight was at 3:45 after that they delayed to 4:40 I have transit from Chicago to Frankfurt and Frankfurt to vina airport from vina to Erbil buy the Time I come to Frankfort my other flight left me I have to stay at airport all day with my 5 kids ask for help no one help me I spent at airport almost $450 just for food was horrible flight ever I call and ask for hotel from united customer service they been telling me we can’t provide any hotel I need some refund or fixed my flight when I return to America need some one respond my email

My experience would have been greatly improved by arriving on time to connect to my Porto flight. The staff that dealt with the aftermath of the late arrival evidently booked my group into a hotel in Frankfurt. This reduced my time in Porto Portugal a day and half. I do want to commend Jorge Klein for his hard work. He spent a great deal.of time trying to rebook the flight and he eventually did rebook for the next day and did provide accommodations for me overnight. This was a big issue for me and the group I traveled. The rest of the trip was good.

Not your fault…..didn’t get my drink until just before landing….bumpy flight.

There was nothing to like besides the crew. The comfort of the airplane was poor (seat did not work properly and it was not comfortable). The “entertainment” system did not work! On a flight that last nearly eight hours, (which is advertised as having excellent entertainment options), that is unacceptable! Passengers should have been given free WiFi for the flight. The food served on the flight was below school lunch grade food. (With one exception, the ice cream snack). The chicken entree was tough and nearly impossible to cut and eat. The “pizza” served later in the flight was worse. The chicken pizza had a dry crust and the “toppings” were equally not enjoyable. The amount of chicken and cheese were almost non existent. Overall not a flight we would want to repeat!!

There was a problem in the luggage because there were not porters

2-1/2 hours on tarmac after arrival to DFW, lost connection to London, 3 hours wait for customer assistance, stayed on our own account in DFW, no replacement flight for 5 days, had to cancel the entire travel and return to Monterrey today.

My worst flying experience so far. This flight was delayed a total of 42 hours and diverted to New York before it was finally cancelled. It was delayed 4 and a half hours in London. As we were scanning our boarding passes at the gate they advised that the flight was being diverted to JFK since the delays caused us to missed the open hours for Charlotte international customs and immigration. We were assured multiple times by airport personnel, flight attendants, and the Pilot that we would land at JFK go through customs and immigration and then reboard the plane to fly to Charlotte in the same night. When we landed in New York the pilot advised us as we were retrieving our carry on luggage that we were delayed till 10am the next morning and to see guest services to get a room for the night. During this time I had to purchase a room for a family member in Charlotte which drove over 4 and a half hours to pick us up from Charlotte. This could have been avoided if American Airlines had been up front about the delay. Then after standing in line for over 2 and a half hours at guest services we were taken by taxi to a hotel 30 minutes out of the way. Luckily I looked for other flights that night and found one at 8 am to get on. The initial flight which we were scheduled to fly to charlotte in was delayed 12 more times and was finally cancelled 42 hours after it was supposed to land. I am unaware of what happened to the guest that were supposed to fly on the flight after we were placed on another flight but 42 hours in delays for a direct flight is absolutely ridiculous.

The boarding to Gatwick was a breeze but the boarding from Gatwick was a nightmare. The onboard service to Gatwick had a lot to be desired but the onboard sevice from Gatwick was amazing ! Very nice,friendly and funny ! Would I recommend BA to anyone.? ! Yes I would!

Is it American Airlines or British Airways? This is so confusing. I got it from Portugal.

Appreciate free wine and entertainment plus good meals. Also leg room

Really quick check in and security at Heathrow Terminal 5. Staff on board were lovely and very friendly. Could have provided a few more drinks on the flight but they were available at the back of the plane.

they are improving. The crew from Charlotte to Tampa was outstanding. SMILING and trying to be helpful with the customers.

It was a flight operated by Aer Linus for BA and the plane and crew were very good but the food selection was average.

Book cheap flights from Oslo to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Oslo to Seattle found on KAYAK in the last 72 hours.
8/23Fri
1 stop
34h 08mOSL-SEA
$327
8/20Tue
1 stop
37h 23mOSL-SEA
$348
10/22Tue
2 stops
20h 51mOSL-SEA
$354
8/23Fri
2 stops
30h 45mOSL-SEA
$372
8/17Sat
1 stopIcelandair
27h 50mOSL-SEA
$434
8/22Thu
2 stopsBritish Airways
29h 35mOSL-SEA
$499
8/20Tue
2 stopsBritish Airways
19h 41mOSL-SEA
$571
6/18Tue
1 stopIcelandair
13h 05mOSL-SEA
$608
6/18Tue
2 stopsLufthansa
26h 40mOSL-SEA
$611
8/14Wed
2 stopsDelta
17h 43mOSL-SEA
$649

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Oslo Airport - Seattle Flights

Departure:

Oslo Airport (OSL)Norway

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Oslo Airport

Cabin classes: