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Cheap flights from Seattle to Oslo from $236

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 8/24. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Oslo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
6:50 pm - 6:00 pm
SEA
-
OSL
14h 10m
1 stop
Lufthansa Logo
6:55 am - 2:22 pm
OSL
-
SEA
16h 27m
2 stops
$509Lufthansa
Tue, Sep 15 - Tue, Sep 29
Lufthansa Logo
6:50 pm - 6:00 pm
SEA
-
OSL
14h 10m
1 stop
Lufthansa Logo
6:55 am - 2:22 pm
OSL
-
SEA
16h 27m
2 stops
$510Lufthansa
Tue, Sep 15 - Tue, Sep 29
United Airlines Logo
2:34 pm - 10:05 pm
SEA
-
OSL
22h 31m
2 stops
United Airlines Logo
6:35 am - 6:32 pm
OSL
-
SEA
20h 57m
2 stops
$511United Airlines
Wed, Aug 19 - Wed, Sep 23
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
$512Icelandair
Mon, Aug 17 - Wed, Aug 26
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
$513Icelandair
Wed, Aug 5 - Wed, Aug 19
Icelandair Logo
7:00 pm - 12:35 pm
SEA
-
OSL
32h 35m
1 stop
Icelandair Logo
4:30 pm - 11:45 am
OSL
-
SEA
28h 15m
1 stop
$514Icelandair
Tue, Aug 4 - Wed, Aug 19
Icelandair Logo
7:00 pm - 12:35 pm
SEA
-
OSL
32h 35m
1 stop
Icelandair Logo
4:30 pm - 5:55 pm
OSL
-
SEA
34h 25m
1 stop
$515Icelandair
Thu, Aug 6 - Wed, Aug 19
Multiple Airlines Logo
2:00 pm - 3:45 pm
SEA
-
OSL
16h 45m
1 stop
Multiple Airlines Logo
6:15 am - 2:37 pm
OSL
-
SEA
17h 22m
2 stops
$516Multiple Airlines
Mon, Nov 2 - Fri, Nov 6
Air Canada Logo
8:00 am - 11:35 am
SEA
-
OSL
18h 35m
2 stops
Air Canada Logo
7:10 am - 9:04 pm
OSL
-
SEA
22h 54m
2 stops
$517Air Canada
Mon, Sep 7 - Tue, Sep 15
Air Canada Logo
8:00 am - 3:15 pm
SEA
-
OSL
22h 15m
2 stops
Air Canada Logo
7:10 am - 9:04 pm
OSL
-
SEA
22h 54m
2 stops
$518Air Canada
Tue, Sep 8 - Sun, Sep 20

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Lufthansa flights from Seattle to Oslo Gardermoen Airport

Our best Lufthansa deals on Seattle to Oslo Gardermoen Airport flight tickets
Lufthansa
Sep 15
SEA6:50 pmSeattle/Tacoma Intl
14h 10m
1 stop
OSL6:00 pmOslo Gardermoen
Sep 29
OSL6:55 amOslo Gardermoen
16h 27m
2 stops
SEA2:22 pmSeattle/Tacoma Intl
$509
Lufthansa
Sep 15
SEA6:50 pmSeattle/Tacoma Intl
14h 10m
1 stop
OSL6:00 pmOslo Gardermoen
Sep 29
OSL6:55 amOslo Gardermoen
16h 27m
2 stops
SEA2:22 pmSeattle/Tacoma Intl
$510
Lufthansa
Sep 8
SEA2:10 pmSeattle/Tacoma Intl
18h 55m
1 stop
OSL6:05 pmOslo Gardermoen
Sep 20
OSL6:25 amOslo Gardermoen
25h 17m
2 stops
SEA10:42 pmSeattle/Tacoma Intl
$521

United Airlines flights from Seattle to Oslo Gardermoen Airport

Our best United Airlines deals on Seattle to Oslo Gardermoen Airport flight tickets
United Airlines
Aug 19
SEA2:34 pmSeattle/Tacoma Intl
22h 31m
2 stops
OSL10:05 pmOslo Gardermoen
Sep 23
OSL6:35 amOslo Gardermoen
20h 57m
2 stops
SEA6:32 pmSeattle/Tacoma Intl
$511
United Airlines
Aug 24
SEA3:54 pmSeattle/Tacoma Intl
21h 11m
2 stops
OSL10:05 pmOslo Gardermoen
Aug 31
OSL6:45 amOslo Gardermoen
25h 41m
3 stops
SEA11:26 pmSeattle/Tacoma Intl
$520
United Airlines
Sep 15
SEA7:00 amSeattle/Tacoma Intl
25h 15m
2 stops
OSL5:15 pmOslo Gardermoen
Sep 29
OSL6:55 amOslo Gardermoen
16h 27m
2 stops
SEA2:22 pmSeattle/Tacoma Intl
$524

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 July 7, 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

Cheapest round-trip

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 9/15

6:50 pm-6:00 pm

1 stop14h 10m

Oslo Gardermoen

Tue 9/29

6:55 am-2:22 pm

2 stops16h 27m

$509

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 9/15

6:50 pm-6:00 pm

1 stop14h 10m

Oslo Gardermoen

Tue 9/29

6:55 am-2:22 pm

2 stops16h 27m

$510

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 8/19

2:34 pm-10:05 pm

2 stops22h 31m

Oslo Gardermoen

Wed 9/23

6:35 am-6:32 pm

2 stops20h 57m

$511
Quickest round-trip

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 8/17

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Wed 8/26

4:30 pm-8:40 pm

1 stop13h 10m

$512

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 8/5

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Wed 8/19

4:30 pm-5:55 pm

1 stop34h 25m

$513

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 8/4

7:00 pm-12:35 pm

1 stop32h 35m

Oslo Gardermoen

Wed 8/19

4:30 pm-11:45 am

1 stop28h 15m

$514

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Thu 8/6

7:00 pm-12:35 pm

1 stop32h 35m

Oslo Gardermoen

Wed 8/19

4:30 pm-5:55 pm

1 stop34h 25m

$515

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 11/2

2:00 pm-3:45 pm

1 stop16h 45m

Oslo Gardermoen

Fri 11/6

6:15 am-2:37 pm

2 stops17h 22m

$516

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 9/7

8:00 am-11:35 am

2 stops18h 35m

Oslo Gardermoen

Tue 9/15

7:10 am-9:04 pm

2 stops22h 54m

$517

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 9/8

8:00 am-3:15 pm

2 stops22h 15m

Oslo Gardermoen

Sun 9/20

7:10 am-9:04 pm

2 stops22h 54m

$518

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 typical price of a round-trip flight between Seattle and Oslo Gardermoen Airport?

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 from Seattle 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 $557 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 $515 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

Frequently asked questions about flying from Seattle to Oslo Gardermoen Airport

  • 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 $351Free CancellationRating
6.7
8,102 reviews
Search British Airways flights
IcelandairPriceFrom $393Free CancellationRating
7.0
702 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $426Free CancellationRating
7.4
1,871 reviews
Search Scandinavian Airlines flights
DeltaPriceFrom $457Free CancellationRating
7.8
8,449 reviews
Search Delta flights
United AirlinesPriceFrom $491Free CancellationRating
7.4
9,945 reviews
Search United Airlines flights
LufthansaPriceFrom $493Free CancellationRating
6.8
8,124 reviews
Search Lufthansa flights
KLMPriceFrom $506Free CancellationRating
7.8
1,534 reviews
Search KLM 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.

An easier way to manage your Oslo Gardermoen Airport trip

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