Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

SEA - OSL

Find cheap flights from Seattle to Oslo from C$ 855

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Oslo Gardermoen departing on 30/9. 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
Fri 7/6
Fri 14/6

Search hundreds of travel sites at once for deals on flights to Oslo

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Oslo, 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 Seattle to Oslo, as well as popular online travel agencies
In the last 7 days, travellers have searched 43,968,530 times on KAYAK, and here is why:

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

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

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

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Oslo Gardermoen 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
7:40 p.m. - 6:30 p.m.SEA-OSL
13h 50m1 stop
9:15 p.m. - 11:35 a.m.OSL-SEA
23h 20m1 stop
C$ 855British Airways
Find Deal
Mon, 30 Sep - Mon, 7 Oct
6:50 p.m. - 5:55 p.m.SEA-OSL
14h 05m1 stop
7:25 a.m. - 10:20 p.m.OSL-SEA
23h 55m2 stops
C$ 886Lufthansa
Find Deal
Tue, 1 Oct - Thu, 10 Oct
6:10 p.m. - 4:20 p.m.SEA-OSL
13h 10m1 stop
11:50 a.m. - 4:50 p.m.OSL-SEA
14h 00m1 stop
C$ 912KLM
Find Deal
Tue, 10 Sep - Tue, 24 Sep
6:45 a.m. - 5:20 p.m.SEA-OSL
25h 35m3 stops
9:50 a.m. - 11:05 p.m.OSL-SEA
22h 15m2 stops
C$ 934United Airlines
Find Deal
Tue, 1 Oct - Thu, 10 Oct
5:10 a.m. - 10:05 p.m.SEA-OSL
31h 55m2 stops
7:25 a.m. - 1:23 a.m.OSL-SEA
26h 58m2 stops
C$ 969United Airlines
Find Deal
Tue, 6 Aug - Tue, 20 Aug
6:00 a.m. - 3:40 p.m.SEA-OSL
24h 40m2 stops
6:35 a.m. - 10:20 p.m.OSL-SEA
24h 45m2 stops
C$ 987
Find Deal
Sun, 22 Sep - Sun, 29 Sep
6:10 p.m. - 6:35 p.m.SEA-OSL
15h 25m1 stop
7:15 p.m. - 10:25 a.m.OSL-SEA
24h 10m1 stop
C$ 1,020KLM
Find Deal
Mon, 9 Sep - Mon, 23 Sep
11:00 p.m. - 9:35 p.m.SEA-OSL
13h 35m1 stop
12:45 p.m. - 8:35 p.m.OSL-SEA
16h 50m2 stops
C$ 1,566
Find Deal
Sat, 20 Jul - Wed, 7 Aug
6:55 p.m. - 3:25 p.m.SEA-OSL
11h 30m1 stop
1:50 p.m. - 9:48 p.m.OSL-SEA
16h 58m2 stops
C$ 1,591Icelandair
Find Deal
Thu, 6 Jun - Wed, 26 Jun
6:55 p.m. - 3:25 p.m.SEA-OSL
11h 30m1 stop
4:30 p.m. - 8:35 p.m.OSL-SEA
13h 05m1 stop
C$ 1,660Icelandair
Find Deal
Sat, 8 Jun - Mon, 24 Jun

Flights from Seattle to Oslo Gardermoen - Travel Insights & Trends

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to Oslo Gardermoen 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 Seattle to Oslo Gardermoen Airport is January, where tickets cost C$ 818 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is C$ 1,902 and C$ 1,745 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to Oslo Gardermoen 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 Seattle to Oslo Gardermoen Airport, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 16 days before departure.

Good to know

Low season

January

High season

July

Cheapest flight

C$ 855
Best time to beat the crowds (33% less expensive on average)
Most popular time to fly (44% more expensive on average)
Flight from Seattle to Oslo

When to book flights from Seattle to Oslo Gardermoen

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

  • Why should I upgrade to a Business Class ticket for my flight from Seattle to Oslo Airport?

    There are several benefits to upgrading to Business Class on a journey from Seattle to Oslo Airport with an airline like British Airways or Emirates. Take advantage of more legroom, flat seats, and plentiful amenities. Gain access to premium lounges, enjoy fine food, and receive personalized attention. These changes improve your comfort, convenience, and overall traveling experience.

  • Which family-friendly airline can I consider for my flight from Seattle to Oslo Airport with the kids?

    Airlines like Lufthansa or Norwegian Air Shuttle are good options for family trips from Seattle to Oslo Airport. Both airlines pride themselves on being family-friendly, providing facilities and services to keep kids occupied. Families with young passengers can benefit from their help, kid-friendly meals, and in-flight entertainment selections. While Norwegian Air Shuttle has a special kids' entertainment area on its in-flight entertainment system, Lufthansa offers a program called "Flying Lab" that features educational games.

  • What are the public transportation options from Oslo Airport to the city center?

    You have various public transportation choices from Oslo Airport to the city center. Oslo Central Station is reached from the airport via the NSB regional rail and the Airport Express rail (Flytoget). Bus service to the city center is also available via the Airport Express Coach (Flybussen) and bus line 380.

  • Are airlines flying from Seattle to Oslo Airport suitable for passengers with limited mobility?

    Yes, American Airlines and Avianca are ideal for travelers with limited mobility from Seattle to Oslo Airport. To ensure a comfortable journey, they offer specialized help like wheelchair assistance, pre-boarding, and other services. Also, passengers can check any necessary mobility aids, such as wheelchairs or scooters. Passengers occasionally even qualify for a free supplementary seat for a caretaker.

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

    In the last 3 days, the lowest price for a flight from Seattle to Oslo Gardermoen Airport was C$ 660 for a one-way ticket and C$ 622 for a round-trip.

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

    Seattle airport is called Seattle/Tacoma Intl and the only airport in Oslo is Oslo Gardermoen.

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

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

  • Which airline alliances offer flights from Seattle to Oslo?

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

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

    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 Seattle to Oslo.

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

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

    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 Oslo with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Oslo?

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

See more FAQs

Top tips for finding a cheap flight from Seattle to Oslo

  • Seattle-Tacoma International Airport (SEA) serves Seattle, Washington, and Tacoma. SEA serves as a base for both Alaska Airlines and Delta Air Lines. It is located approximately 14 miles south of downtown Seattle.
  • The average carbon emissions per person on flights from Seattle to Oslo Airport stand at 8,794 lbs. However, you have the option to choose more environmentally friendly flights with Icelandair and Wideroe, as they offer breakouts that emit 33% less CO2 per person on this specific route.
  • Norwegian Air Shuttle and Lufthansa are renowned for having the most accommodating carry-on policies between Seattle and Oslo Airport (OSL). While Lufthansa offers reasonable size and weight restrictions for carry-on luggage, Norwegian Air Shuttle permits a higher carry-on weight allowance.
  • Unaccompanied minors between the ages of 5 and 11 are welcome to fly with Norwegian Air Shuttle from Seattle to Oslo Airport. They need the Unaccompanied Minor service to be purchased, the relevant paperwork to be filled out, and adherence to particular check-in and pick-up procedures.
  • For flights from Seattle to Oslo Airport, carriers, including Delta Air Lines and KLM, have accommodating pet policies. Depending on size and species, pets may fly with their owners in the cabin or as cargo on Delta Air Lines. Additionally, they offer specialized pet travel services. KLM provides pet transportation as cargo for larger animals and permits small dogs to travel in the cabin under certain conditions.
See more tips

Top airline flying from Seattle to Oslo Gardermoen

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Oslo. 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 Seattle to Oslo Gardermoen? 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.
7.1
IcelandairOverall score based on 1329 reviews
6.2Food
7.1Entertainment
7.9Crew
7.1Boarding
6.8Comfort
Airline reviews

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

8.0 ExcellentFreddie, May 2024ORD - KEF
Read more about Icelandair reviews

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!!

The seat size was more like a domestic than an international flight. In fact, i would compare the ammenities, quality and service to a short hall ryan air flight, which was unexpected for an international flight. The plane was extremely hot so sleeping was difficult. My biggest complaint was that they are very strict on carry on luggage only allowing it to weigh 10kg/22lb. I try to limit myself to a carryon so i don't have to mess with bagage claim, but the wieght restriction made it impossible. I have never had a carry on weight restriction (at least enforced) on an international flight. Will not be including them in future searches.

Book cheap flights from Seattle to Oslo

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Oslo found on KAYAK in the last 72 hours.
14/7Sun
2 stopsUnited Airlines
31h 50mSEA-OSL
C$ 907
16/5Thu
3 stopsUnited Airlines
29h 40mSEA-OSL
C$ 1,105
29/5Wed
3 stopsUnited Airlines
27h 52mSEA-OSL
C$ 1,329

Search by stops

Search by airline

Search by price

Last minute flights from Seattle to Oslo Gardermoen

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 Seattle to Oslo that are departing in the next 10 days.
10/5Fri
multi-stopTAP AIR PORTUGAL
24h 40mSEA-OSL
12/5Sun
multi-stopTAP AIR PORTUGAL
36h 45mOSL-SEA
C$ 3,454

Search by stops

Search by airline

Search by price

Seattle - Oslo Flights

Departure:

Seattle (undefined)United States

Destination:

Oslo (OSL)Norway

Cabin classes:

Browse origins:

  • Flights » 
  • Seattle

Browse destinations:

  • Flights » 
  • Worldwide » 
  • Oslo Airport