Cheap flights from Oslo Gardermoen Airport to Seattle from £336
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Oslo Gardermoen to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Oslo Gardermoen (OSL) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 31 August 2025.
Round-trip from | £336 |
---|---|
Popular in | July |
Cheapest in | October |
Average price | £460 |
Find flight deals from Oslo Gardermoen to Seattle
Cheapest flights from Oslo Gardermoen to SeattleExplore the most affordable flight options available from Oslo Gardermoen to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 August 2025.
Explore the most affordable flight options available from Oslo Gardermoen to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 August 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Oslo Gardermoen Airport to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
OsloSeattle
OSL - SEA
OSLSEA
Oslo Gardermoen
Wed 15/10
08:35-19:27
2 stops19h 52m
Seattle/Tacoma Intl
Wed 22/10
20:20-23:30
1 stop18h 10m
OsloSeattle
OSL - SEA
OSLSEA
Oslo Gardermoen
Thu 9/10
11:50-20:50
2 stops18h 00m
Seattle/Tacoma Intl
Mon 13/10
12:45-16:40
2 stops18h 55m
OsloSeattle
OSL - SEA
OSLSEA
Oslo Gardermoen
Fri 26/12
15:05-11:30
1 stop29h 25m
Seattle/Tacoma Intl
Sat 10/1
11:54-10:35
2 stops37h 41m
OsloSeattle
OSL - SEA
OSLSEA
Oslo Gardermoen
Fri 26/12
07:10-16:55
1 stop18h 45m
Seattle/Tacoma Intl
Sun 11/1
18:50-22:40
1 stop18h 50m
OsloSeattle
OSL - SEA
OSLSEA
Oslo Gardermoen
Mon 6/10
08:35-19:29
2 stops19h 54m
Seattle/Tacoma Intl
Sun 19/10
13:30-23:40
1 stop25h 10m
OsloSeattle
OSL - SEA
OSLSEA
Oslo Gardermoen
Mon 6/10
06:35-11:55
1 stop14h 20m
Seattle/Tacoma Intl
Sun 19/10
18:50-22:10
1 stop18h 20m
OsloSeattle
OSL - SEA
OSLSEA
Oslo Gardermoen
Mon 6/10
17:05-20:46
2 stops36h 41m
Seattle/Tacoma Intl
Sun 19/10
10:39-23:40
2 stops28h 01m
OsloSeattle
OSL - SEA
OSLSEA
Oslo Gardermoen
Fri 3/10
07:50-22:04
2 stops23h 14m
Seattle/Tacoma Intl
Fri 10/10
13:30-22:30
1 stop24h 00m
OsloSeattle
OSL - SEA
OSLSEA
Oslo Gardermoen
Mon 6/10
09:20-11:50
1 stop35h 30m
Seattle/Tacoma Intl
Sun 19/10
17:40-08:45
1 stop30h 05m
OsloSeattle
OSL - SEA
OSLSEA
Oslo Gardermoen
Mon 8/9
06:45-10:45
3 stops37h 00m
Best time to book a flight from Oslo Gardermoen to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Oslo Gardermoen with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Oslo Gardermoen Airport to Seattle
How far ahead should I book a flight from Oslo Gardermoen Airport to Seattle?
Booking 61 days in advance of your planned departure date is, on average, the best time to get cheap flights from Oslo Gardermoen Airport to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Oslo Gardermoen Airport to Seattle?
Currently, January is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Seattle (average of £622). Flying from Oslo Gardermoen Airport to Seattle in July is currently the most expensive (average of £946). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost for a return flight from Oslo Gardermoen Airport to Seattle?
Related info for your journey
Find useful and relevant information for your journey from Oslo Gardermoen to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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How does Cheapflights help users find flights from Oslo Gardermoen to Seattle?
Cheapflights helps you search for flights from Oslo Gardermoen to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Oslo Gardermoen to Seattle?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Oslo Gardermoen to Seattle for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Oslo Gardermoen to Seattle with no change fees?
Yes, we can. To see specific flights from Oslo Gardermoen to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Oslo Gardermoen to Seattle become cheaper?
Not ready to book yet? You can track prices for flights from Oslo Gardermoen to Seattle on Cheapflights with our Price Alert feature and get notified when better prices are available.