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OSL - SEA

£324 Find cheap flights from Oslo to Seattle

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from Oslo to Seattle departing on 12/6. 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 13/6
Thu 20/6

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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, 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 Oslo to Seattle, as well as popular online travel agencies
In the last 7 days, travellers have searched 42,566,405 times on KAYAK, and here's why:

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Cheap flight deals from Oslo 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 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
17:05 - 11:30OSL-SEA
27h 25m1 stop
07:06 - 10:35SEA-OSL
18h 29m2 stops
£324British Airways
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Wed, 12 Jun - Tue, 18 Jun
19:15 - 10:10OSL-SEA
23h 55m1 stop
18:15 - 23:20SEA-OSL
20h 05m1 stop
Fri, 24 May - Wed, 29 May
07:35 - 19:48OSL-SEA
21h 13m2 stops
07:06 - 10:35SEA-OSL
18h 29m2 stops
£328British Airways
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Wed, 12 Jun - Tue, 18 Jun
16:50 - 11:20OSL-SEA
27h 30m1 stop
13:35 - 11:50SEA-OSL
13h 15m1 stop
£330Air France
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Sat, 25 May - Sun, 2 Jun
09:20 - 16:40OSL-SEA
16h 20m1 stop
18:10 - 16:20SEA-OSL
13h 10m1 stop
£332Delta
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Sat, 25 May - Wed, 29 May
06:30 - 16:30OSL-SEA
19h 00m2 stops
18:10 - 16:20SEA-OSL
13h 10m1 stop
£336Delta
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Sat, 25 May - Tue, 28 May
12:00 - 11:35OSL-SEA
32h 35m1 stop
19:40 - 22:10SEA-OSL
17h 30m1 stop
£358American Airlines
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Fri, 24 May - Fri, 31 May
12:00 - 23:05OSL-SEA
20h 05m2 stops
19:40 - 22:10SEA-OSL
17h 30m1 stop
£367American Airlines
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Fri, 24 May - Fri, 31 May
06:35 - 12:25OSL-SEA
14h 50m1 stop
18:50 - 17:55SEA-OSL
14h 05m1 stop
£382Lufthansa
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Sat, 25 May - Fri, 31 May
06:35 - 12:25OSL-SEA
14h 50m1 stop
14:15 - 12:20SEA-OSL
13h 05m1 stop
£498Lufthansa
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Fri, 24 May - Sat, 1 Jun

Flights from Oslo to Seattle - Travel Insights & Trends

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

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 £332 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is £654 and £647 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 to Seattle?

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 British Airways (£446) and Ethiopian Air (£1,317). The cheapest round-trip tickets were found on British Airways (£324) and Air France (£330).

Good to know - Cheap tickets from Oslo to Seattle

Low season

January

High season

June

Cheapest flight

£324
Best time to beat the crowds (2% less expensive on average)
Most popular time to fly (12% more expensive on average)
Flight from Oslo to Seattle

When to book flights from Oslo to Seattle

Are your dates flexible? Find out the best times to travel from Oslo to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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 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 £559 for a one-way ticket and £407 for a return.

  • Which airports will I be using when flying from Oslo to Seattle?

    When flying out of Oslo you will be using Oslo Gardermoen. You will be landing at Seattle, also known as Seattle/Tacoma Intl.

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

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

  • Which airline alliances offer flights from Oslo to Seattle?

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

  • Which is the best airline for flights from Oslo to Seattle, Lufthansa or British Airways?

    The two airlines most popular with KAYAK users for flights from Oslo to Seattle are Lufthansa and British Airways. With an average price for the route of £329 and an overall rating of 7.0, Lufthansa is the most popular choice. British Airways is also a great choice for the route, with an average price of £307 and an overall rating of 6.8.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Oslo is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Oslo to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Seattle with an airline and back to Oslo with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Oslo 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 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 Oslo 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 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.
7.0
LufthansaOverall score based on 7666 reviews
6.9Comfort
7.2Boarding
6.7Entertainment
7.7Crew
6.5Food
Airline reviews

Boarding, comfort, food/drinks, entertainment and most of all an extremely courteous and friendly group of flight attendants made my 12 hour flight an absolute joy!

10.0 ExcellentAnonymous, May 2024MUC - LAX
Read more about Lufthansa reviews

Boarding, comfort, food/drinks, entertainment and most of all an extremely courteous and friendly group of flight attendants made my 12 hour flight an absolute joy!

The bad part was 2 hour delay and we were seating in the airplane it was getting hot and uncomfortable But after they fixed the problem everything went so smooth Crew were amazing very nice polite and caring

Touchscreens do not work. WiFi did not work. Food is possibly the worst on any European airline. Drinks came by only four times on a cross-Atlantic. The plane was two hours late because—it was announced—Lufthansa didn't have enough large aircraft in their fleet to accommodate an on-time flight.

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 would have preferred something lighter for the second meal. Maybe a small sandwich .

They cancelled our flight the morning of departure at 4:30am.

Coach seats are too tight. Seem designed for small people. Food different but OK. Staff helpful.

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.

Book cheap flights from Oslo to Seattle

Cheapest flights to Seattle from Oslo found in 2024

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.
18/6Tue
2 stopsBritish Airways
21h 08mOSL-SEA
£446
18/6Tue
4 stopsEthiopian Air
58h 05mOSL-SEA
£1,317
18/6Tue
4 stopsEthiopian Air
58h 05mOSL-SEA
£1,319
27/7Sat
3 stops
31h 02mOSL-SEA
£1,489
10/7Wed
4 stopsEthiopian Air
57h 22mOSL-SEA
£1,685

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Last minute flights from Oslo to Seattle

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 Oslo to Seattle that are departing in the next 10 days.
16/5Thu
multi-stop
23h 55mOSL-SEA
26/5Sun
multi-stop
20h 05mSEA-OSL
£376
18/5Sat
multi-stopDelta
18h 04mOSL-SEA
27/5Mon
multi-stopDelta
18h 45mSEA-OSL
£384
16/5Thu
multi-stopDelta
20h 10mOSL-SEA
25/5Sat
multi-stopDelta
16h 05mSEA-OSL
£386
17/5Fri
multi-stopBritish Airways
27h 35mOSL-SEA
26/5Sun
multi-stopBritish Airways
18h 55mSEA-OSL
£427
17/5Fri
multi-stopBritish Airways
27h 35mOSL-SEA
29/5Wed
multi-stopBritish Airways
15h 05mSEA-OSL
£437
15/5Wed
multi-stopAmerican Airlines
25h 24mOSL-SEA
27/5Mon
multi-stopAmerican Airlines
25h 03mSEA-OSL
£489
16/5Thu
multi-stopAir Canada
17h 37mOSL-SEA
29/5Wed
multi-stopAir Canada
19h 50mSEA-OSL
£524
19/5Sun
multi-stopAir Canada
24h 16mOSL-SEA
28/5Tue
multi-stopAir Canada
19h 45mSEA-OSL
£584
15/5Wed
multi-stopLufthansa
14h 50mOSL-SEA
23/5Thu
multi-stopLufthansa
13h 05mSEA-OSL
£587
18/5Sat
multi-stopLufthansa
17h 37mOSL-SEA
25/5Sat
multi-stopLufthansa
13h 05mSEA-OSL
£874

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Oslo - Seattle Flights

Departure:

Oslo (undefined)Norway

Destination:

Seattle (SEA)United States

Cabin classes:

Browse origins:

  • Flights » 
  • Oslo Airport

Browse destinations:

  • Flights » 
  • Worldwide » 
  • Seattle