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Cheap flights from Seattle to Oslo from $218

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Oslo departing on 5/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Seattle to Oslo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
3:40 pm - 12:35 pm
SEA
-
OSL
11h 55m
1 stop
Icelandair Logo
1:50 pm - 5:55 pm
OSL
-
SEA
13h 05m
1 stop
$398Icelandair
Tue, Apr 14 - Sun, Apr 26
Icelandair Logo
3:40 pm - 12:35 pm
SEA
-
OSL
11h 55m
1 stop
Icelandair Logo
4:30 pm - 8:40 pm
OSL
-
SEA
13h 10m
1 stop
$399Icelandair
Tue, Apr 14 - Sun, Apr 26
Icelandair Logo
7:00 pm - 3:25 pm
SEA
-
OSL
11h 25m
1 stop
Icelandair Logo
4:30 pm - 8:40 pm
OSL
-
SEA
13h 10m
1 stop
$414Icelandair
Fri, May 8 - Fri, May 22
Icelandair Logo
7:00 pm - 3:25 pm
SEA
-
OSL
11h 25m
1 stop
Icelandair Logo
4:30 pm - 8:40 pm
OSL
-
SEA
13h 10m
1 stop
$415Icelandair
Fri, May 8 - Fri, May 22
Icelandair Logo
7:00 pm - 3:25 pm
SEA
-
OSL
11h 25m
1 stop
Icelandair Logo
4:30 pm - 5:55 pm
OSL
-
SEA
34h 25m
1 stop
$416Icelandair
Fri, May 15 - Sun, May 24
Icelandair Logo
3:35 pm - 11:35 am
SEA
-
OSL
12h 00m
1 stop
Icelandair Logo
1:10 pm - 6:00 pm
OSL
-
SEA
12h 50m
1 stop
$425Icelandair
Wed, Mar 11 - Mon, Mar 16
Icelandair Logo
3:40 pm - 3:25 pm
SEA
-
OSL
14h 45m
1 stop
Icelandair Logo
1:50 pm - 8:40 pm
OSL
-
SEA
15h 50m
1 stop
$456Icelandair
Mon, May 4 - Fri, May 15
Air France Logo
2:10 pm - 2:45 pm
SEA
-
OSL
15h 35m
1 stop
Air France Logo
6:25 am - 1:05 pm
OSL
-
SEA
15h 40m
1 stop
$460Air France
Sun, Mar 1 - Sun, Mar 8
Air France Logo
2:15 pm - 11:35 pm
SEA
-
OSL
24h 20m
1 stop
Air France Logo
6:25 am - 1:05 pm
OSL
-
SEA
15h 40m
1 stop
$464Air France
Mon, Feb 23 - Mon, Mar 2
Multiple Airlines Logo
2:15 pm - 11:35 pm
SEA
-
OSL
24h 20m
1 stop
Multiple Airlines Logo
7:00 pm - 12:35 pm
OSL
-
SEA
25h 35m
1 stop
$465Multiple Airlines
Wed, Feb 25 - Mon, Mar 9

Air France flights from Seattle to Oslo Gardermoen Airport

Our best Air France deals on Seattle to Oslo Gardermoen Airport flight tickets
Air France
Mar 1
SEA2:10 pmSeattle/Tacoma Intl
15h 35m
1 stop
OSL2:45 pmOslo Gardermoen
Mar 8
OSL6:25 amOslo Gardermoen
15h 40m
1 stop
SEA1:05 pmSeattle/Tacoma Intl
$460
Air France
Feb 23
SEA2:15 pmSeattle/Tacoma Intl
24h 20m
1 stop
OSL11:35 pmOslo Gardermoen
Mar 2
OSL6:25 amOslo Gardermoen
15h 40m
1 stop
SEA1:05 pmSeattle/Tacoma Intl
$464
Air France
Mar 16
SEA3:10 pmSeattle/Tacoma Intl
21h 40m
1 stop
OSL8:50 pmOslo Gardermoen
Mar 26
OSL3:55 pmOslo Gardermoen
30h 10m
1 stop
SEA2:05 pmSeattle/Tacoma Intl
$476

KLM flights from Seattle to Oslo Gardermoen Airport

Our best KLM deals on Seattle to Oslo Gardermoen Airport flight tickets
KLM
Feb 10
SEA3:05 pmSeattle/Tacoma Intl
20h 55m
1 stop
OSL9:00 pmOslo Gardermoen
Feb 24
OSL7:00 pmOslo Gardermoen
25h 40m
1 stop
SEA11:40 amSeattle/Tacoma Intl
$478
KLM
Feb 25
SEA7:10 amSeattle/Tacoma Intl
16h 30m
2 stops
OSL8:40 amOslo Gardermoen
Mar 9
OSL9:25 amOslo Gardermoen
35h 10m
1 stop
SEA12:35 pmSeattle/Tacoma Intl
$483
KLM
Apr 13
SEA1:45 pmSeattle/Tacoma Intl
13h 45m
1 stop
OSL12:30 pmOslo Gardermoen
Apr 14
OSL5:20 pmOslo Gardermoen
27h 25m
1 stop
SEA11:45 amSeattle/Tacoma Intl
$528

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Oslo Gardermoen Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from Seattle to Oslo Gardermoen Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 4/14

3:40 pm-12:35 pm

1 stop11h 55m

Oslo Gardermoen

Sun 4/26

1:50 pm-5:55 pm

1 stop13h 05m

$398

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 4/14

3:40 pm-12:35 pm

1 stop11h 55m

Oslo Gardermoen

Sun 4/26

4:30 pm-8:40 pm

1 stop13h 10m

$399

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 5/8

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Fri 5/22

4:30 pm-8:40 pm

1 stop13h 10m

$414

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 5/8

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Fri 5/22

4:30 pm-8:40 pm

1 stop13h 10m

$415

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 5/15

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Sun 5/24

4:30 pm-5:55 pm

1 stop34h 25m

$416

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 3/11

3:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Mon 3/16

1:10 pm-6:00 pm

1 stop12h 50m

$425

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 5/4

3:40 pm-3:25 pm

1 stop14h 45m

Oslo Gardermoen

Fri 5/15

1:50 pm-8:40 pm

1 stop15h 50m

$456

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 3/1

2:10 pm-2:45 pm

1 stop15h 35m

Oslo Gardermoen

Sun 3/8

6:25 am-1:05 pm

1 stop15h 40m

$460

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 2/23

2:15 pm-11:35 pm

1 stop24h 20m

Oslo Gardermoen

Mon 3/2

6:25 am-1:05 pm

1 stop15h 40m

$464

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 2/25

2:15 pm-11:35 pm

1 stop24h 20m

Oslo Gardermoen

Mon 3/9

7:00 pm-12:35 pm

1 stop25h 35m

$465

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Oslo from

How to get the cheapest flight ticket from Seattle to Oslo Gardermoen Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

The cheapest month to fly to Oslo Gardermoen Airport from Seattle is in January. Flight prices, which tend to average around $422, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Oslo Gardermoen Airport from Seattle during November instead. Flights to Oslo Gardermoen Airport in November, while not as cheap as those in January, still average around $483.

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

You are more likely to see cheaper flights to Oslo Gardermoen Airport from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Oslo Gardermoen Airport for around $587 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Oslo Gardermoen Airport from Seattle for as low as $533 on momondo.

How have Seattle to Oslo Gardermoen Airport flight prices changed over time?

When to book flights from Seattle to Oslo Gardermoen Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Oslo Gardermoen Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Oslo Gardermoen Airport (SEA to OSL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Oslo Gardermoen Airport

Fastest flight time

11h 25m

Direct flights

None
The fastest flight from Seattle to Oslo Gardermoen Airport takes 11h 25m
There are no direct flights from Seattle to Oslo Gardermoen Airport. There are no popular flight routes from Seattle to Oslo Gardermoen Airport.
Search flight deals

  • How far is Seattle/Tacoma Intl to Oslo Gardermoen by plane?

    Seattle/Tacoma Intl and Oslo Gardermoen are 4540.7 mi apart from one another. 11h 25m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Oslo Gardermoen Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Oslo Gardermoen Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Oslo Gardermoen Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Oslo Gardermoen Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Oslo Gardermoen Airport.

  • What documentation or ID do you need to fly to Oslo Gardermoen Airport?

    The travel and health documents you'll need for your trip to Oslo Gardermoen Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Oslo Gardermoen Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Oslo Gardermoen Airport?

Best airlines flying from Seattle to Oslo Gardermoen Airport

Compare and see reviews for airlines that fly from Seattle to Oslo Gardermoen Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $353Free CancellationRating
6.7
7,714 reviews
Search British Airways flights
IcelandairPriceFrom $399Free CancellationRating
7.1
606 reviews
Search Icelandair flights
DeltaPriceFrom $468Free CancellationRating
7.9
8,141 reviews
Search Delta flights
American AirlinesPriceFrom $488Free CancellationRating
7.2
11,218 reviews
Search American Airlines flights
FinnairPriceFrom $491Free CancellationRating
7.6
1,357 reviews
Search Finnair flights
Scandinavian AirlinesPriceFrom $492Free CancellationRating
7.3
1,677 reviews
Search Scandinavian Airlines flights
KLMPriceFrom $516Free CancellationRating
7.7
1,448 reviews
Search KLM flights
United AirlinesPriceFrom $518Free CancellationRating
7.4
9,235 reviews
Search United Airlines flights
Air FrancePriceFrom $526Free CancellationRating
7.4
1,531 reviews
Search Air France flights
LufthansaPriceFrom $538Free CancellationRating
6.8
7,759 reviews
Search Lufthansa flights

Traveling to a place near Oslo?

Book flights to Oslo if you plan to visit one of these locations
Gardermoen
Fredrikstad
Lillehammer
Drammen

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Oslo?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Oslo from Seattle.

Can I find flights from Seattle to Oslo with flexible booking policies on momondo?

Flights from Seattle to Oslo with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seattle to Oslo?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Oslo from Seattle.

I’m not ready to book a flight from Seattle to Oslo right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seattle to Oslo flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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