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OSL - SEA

Find cheap flights from Oslo Airport to Seattle from $245

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 6/4. 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
Mon 6/3
Mon 6/10

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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 43,693,958 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 - 7:23 pmOSL-SEA
21h 13m2 stops
3:41 pm - 11:30 pmSEA-OSL
22h 49m2 stops
$409American Airlines
Find Deal
Thu, Aug 29 - Wed, Sep 11
5:05 pm - 11:30 amOSL-SEA
27h 25m1 stop
7:40 pm - 11:25 pmSEA-OSL
18h 45m1 stop
$449American Airlines
Find Deal
Wed, Sep 4 - Mon, Sep 9
8:35 am - 9:40 pmOSL-SEA
22h 05m2 stops
7:40 am - 10:35 amSEA-OSL
17h 55m2 stops
$459British Airways
Find Deal
Sun, Sep 1 - Sun, Sep 8
10:30 pm - 11:20 amOSL-SEA
21h 50m1 stop
11:00 pm - 12:35 pmSEA-OSL
28h 35m1 stop
$512Icelandair
Find Deal
Sun, Sep 1 - Sun, Sep 8
5:30 pm - 11:35 amOSL-SEA
27h 05m1 stop
7:40 am - 10:35 amSEA-OSL
17h 55m2 stops
$526British Airways
Find Deal
Sun, Sep 1 - Sun, Sep 8
4:30 pm - 8:35 pmOSL-SEA
13h 05m1 stop
6:55 pm - 3:25 pmSEA-OSL
11h 30m1 stop
$539Icelandair
Find Deal
Tue, Sep 3 - Tue, Sep 10
9:00 pm - 4:00 pmOSL-SEA
28h 00m1 stop
1:30 pm - 11:25 pmSEA-OSL
24h 55m1 stop
Wed, Jul 17 - Tue, Oct 22
5:20 pm - 10:15 amOSL-SEA
25h 55m1 stop
1:35 pm - 3:55 pmSEA-OSL
17h 20m1 stop
Fri, Aug 30 - Thu, Sep 5
6:30 am - 2:40 pmOSL-SEA
17h 10m2 stops
12:40 pm - 4:30 pmSEA-OSL
18h 50m1 stop
$793Delta
Find Deal
Wed, Jul 17 - Mon, Nov 4
6:30 am - 2:40 pmOSL-SEA
17h 10m2 stops
1:30 pm - 11:05 amSEA-OSL
12h 35m1 stop
$798Delta
Find Deal
Wed, Jul 17 - Sat, Oct 19

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 Monday 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 July and August, where the average cost of tickets is $820 and $785 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 days 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 American Airlines ($409) and British Airways ($459). Icelandair proposed the cheapest one-way flight at $317.

Good to know

Low season

January

High season

June

Cheapest flight

$245
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly with an average 13% 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 $245 for a one-way ticket and $409 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, Star Alliance, and SkyTeam 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 $806 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 10838 reviews
8.2Boarding
7.9Comfort
8.6Crew
7.4Food
8.0Entertainment
Airline reviews

Delta is one of the best airlines I have flown

10.0 ExcellentKellie, Apr 2024ANC - SEA
Read more about Delta reviews

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.

Delta needs to step up the meals and snacks. They have been serving the same two meals for three years.... It is time to change it up.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

They ocer booked the connecting flight. My bags took a long time to come out, nevertheless I got to the gate in time to board, but they have given my seat to another passenger. They were aware I was connecting from another flight that was a little late, but they did not care. The customer representatives were rude. A horrible experience.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

Not being able to purchase my check in baggage online was a negative.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

WiFi connected but only let you go to the AA website, not even text messaging worked.

Too bad that first class seats do not recline significantly causing discomfort

Flight delayed over an over all day until it cancelled at 1:30am. Would not repeatedly delay that late. Offer hotel rooms and rebook early. Very difficult for families with small children

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."

It was freezing in the airplane. Everyone was wearing everything they had with them. The crew acknowledged it was cold, but did nothing about it

The flight attendants were superb and the service was outstanding. Some passengers with small children were very rude and inconsiderate, kids were constantly crying and some were running around the aisle unsupervised.

Terrible. There was a rattling noise the whole flight. The internet didn't work after I paid. Boarding is very disorganized.

Horrible flight attendant in back of economy that screamed at me, have already reported to United. Horrible food - for Gluten free, why would you assume the person is vegetarian? I was served some kind of horrible curry bean paste and multiple cold rolls and soggy vegetables with no seasoning... um no!

The crew member put her luggage and boxes behind my seat so I was able to recline while the passenger in front of me did for 8 hours. My knees were forced against the seat for hours :(. Dude sitting next to me hasn't showered in weeks so I almost threw up.

Sorry my last review for prg to fra was for this flight. My prg to fra flight was fine but my second flight back to Washington DC was with a slow awful crew who wouldn’t come in a timely manner to take trash and take trash before serving coffee tea and was shoving other people’s bottles of water on me when we were not traveling together

Lufthansa was amazing. Definitely upgrade your seat if you can swing it - they take very good care of their passengers. Customs in DC is nothing short of a nightmare though. Stood in line waiting to go back through security for 30 minutes, had to RUN through and across two terminals to make my connection and only had 5 minutes to spare. Terrible. Very very poor coordination by the airport staff and CBP.

I was ver pleased with the service all the way through

I always try to book flights that don’t charge for baggage. Yet I was charged $75 for this flight.

Trouble keeps changing the time and I was booked different flight without knowing it was bad experience

my original flight was cancelled the previous day, and i was rescheduled onto this flight, which left much earlier in the morning, impacting my previous evening and requiring me to get up much earlier in the morning to get to the airport online. This practice happens way way way too much, and it seems on every airline, though AA is probably the worst.

Spending 10 hours on a flight with no video or wifi access due to issues per stewardess was not enjoyable nor acceptable. Will follow up directly with the airline as well

I really did not like being ordered to pull my shade down by the attendants. One of them was very rude to me about it, standing there until I closed it like I was a child brusquely reaching across me to close an adjoining one. They claim it was so people who wanted to could sleep. It’s a 10:30am flight not a red eye. Closing your shade or leaving it up for natural light should be a choice. Ruined my flight!

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

The crew was very attentive and kept busy serving a variety of treats!

Terrible. Flight was 3 hours delayed and I missed my other flight to my final destination

Offered vegetable curry when it was actually tofu which I don’t care for.

The flight was good the crew excellent…but take off delayed three hours!!!

Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.

perhaps eye contact with the cabin crew, instead of abruptness and an impatience to serve.

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.
6/4Tue
2 stops
29h 47mOSL-SEA
$245
6/18Tue
2 stops
41h 24mOSL-SEA
$287
6/4Tue
1 stopIcelandair
15h 45mOSL-SEA
$317
6/18Tue
1 stopIcelandair
13h 05mOSL-SEA
$433
7/6Sat
2 stopsAmerican Airlines
23h 25mOSL-SEA
$552
7/23Tue
2 stopsBritish Airways
33h 23mOSL-SEA
$558
7/27Sat
1 stopTurkish Airlines
37h 55mOSL-SEA
$670
7/28Sun
1 stopTurkish Airlines
35h 10mOSL-SEA
$683
7/27Sat
2 stopsBritish Airways
20h 29mOSL-SEA
$715
7/26Fri
2 stopsAmerican Airlines
23h 13mOSL-SEA
$766

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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: