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Cheap flights from Seattle to Oslo from $80

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 8/23. 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.
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
Tue, Sep 8 - Sun, Sep 20
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
$513Icelandair
Sat, Sep 19 - Sat, Sep 26
United Airlines Logo
6:50 pm - 10:05 pm
SEA
-
OSL
18h 15m
1 stop
United Airlines Logo
6:45 am - 7:08 pm
OSL
-
SEA
45h 23m
3 stops
$514United Airlines
Sun, Aug 16 - Tue, Aug 25
United Airlines Logo
5:00 am - 10:05 pm
SEA
-
OSL
32h 05m
2 stops
United Airlines Logo
6:25 am - 11:55 am
OSL
-
SEA
14h 30m
1 stop
$515United Airlines
Sun, Aug 23 - Sun, Sep 6
United Airlines Logo
10:45 pm - 5:10 pm
SEA
-
OSL
33h 25m
2 stops
United Airlines Logo
6:45 am - 9:05 pm
OSL
-
SEA
23h 20m
2 stops
$516United Airlines
Sun, Nov 1 - Tue, Nov 10
United Airlines Logo
11:50 pm - 5:10 pm
SEA
-
OSL
32h 20m
2 stops
United Airlines Logo
6:45 am - 9:05 pm
OSL
-
SEA
23h 20m
2 stops
$517United Airlines
Sun, Nov 1 - Tue, Nov 10
Icelandair Logo
7:00 pm - 12:35 pm
SEA
-
OSL
32h 35m
1 stop
Icelandair Logo
1:50 pm - 5:55 pm
OSL
-
SEA
13h 05m
1 stop
$518Icelandair
Sat, Aug 15 - Thu, Sep 3
Multiple Airlines Logo
6:50 pm - 10:05 pm
SEA
-
OSL
18h 15m
1 stop
Multiple Airlines Logo
9:55 am - 9:52 am
OSL
-
SEA
32h 57m
2 stops
$519Multiple Airlines
Tue, Sep 15 - Tue, Sep 29
United Airlines Logo
10:58 pm - 5:15 pm
SEA
-
OSL
33h 17m
2 stops
United Airlines Logo
7:15 am - 4:59 pm
OSL
-
SEA
18h 44m
1 stop
$520United Airlines
Sat, Sep 26 - Sat, Oct 17
Air Canada Logo
8:00 am - 3:15 pm
SEA
-
OSL
22h 15m
2 stops
Air Canada Logo
6:25 am - 6:32 pm
OSL
-
SEA
21h 07m
2 stops
$521Air 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
Nov 1
SEA2:00 pmSeattle/Tacoma Intl
18h 30m
1 stop
OSL5:30 pmOslo Gardermoen
Nov 10
OSL6:25 pmOslo Gardermoen
27h 35m
1 stop
SEA1:00 pmSeattle/Tacoma Intl
$523
Lufthansa
Aug 16
SEA6:50 pmSeattle/Tacoma Intl
20h 15m
2 stops
OSL12:05 amOslo Gardermoen
Aug 26
OSL7:10 amOslo Gardermoen
18h 49m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$525
Lufthansa
Aug 13
SEA6:50 pmSeattle/Tacoma Intl
20h 30m
2 stops
OSL12:20 amOslo Gardermoen
Aug 18
OSL7:10 amOslo Gardermoen
18h 49m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$536

Icelandair flights from Seattle to Oslo Gardermoen Airport

Our best Icelandair deals on Seattle to Oslo Gardermoen Airport flight tickets
Icelandair
Sep 8
SEA7:00 pmSeattle/Tacoma Intl
11h 25m
1 stop
OSL3:25 pmOslo Gardermoen
Sep 20
OSL4:30 pmOslo Gardermoen
13h 10m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$512
Icelandair
Sep 19
SEA3:40 pmSeattle/Tacoma Intl
11h 55m
1 stop
OSL12:35 pmOslo Gardermoen
Sep 26
OSL4:30 pmOslo Gardermoen
13h 10m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$513
Icelandair
Aug 15
SEA7:00 pmSeattle/Tacoma Intl
32h 35m
1 stop
OSL12:35 pmOslo Gardermoen
Sep 3
OSL1:50 pmOslo Gardermoen
13h 05m
1 stop
SEA5:55 pmSeattle/Tacoma Intl
$518

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 June 10, 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
Quickest round-trip

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 9/8

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Sun 9/20

4:30 pm-8:40 pm

1 stop13h 10m

$512

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sat 9/19

3:40 pm-12:35 pm

1 stop11h 55m

Oslo Gardermoen

Sat 9/26

4:30 pm-8:40 pm

1 stop13h 10m

$513

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 8/16

6:50 pm-10:05 pm

1 stop18h 15m

Oslo Gardermoen

Tue 8/25

6:45 am-7:08 pm

3 stops45h 23m

$514

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 8/23

5:00 am-10:05 pm

2 stops32h 05m

Oslo Gardermoen

Sun 9/6

6:25 am-11:55 am

1 stop14h 30m

$515

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 11/1

10:45 pm-5:10 pm

2 stops33h 25m

Oslo Gardermoen

Tue 11/10

6:45 am-9:05 pm

2 stops23h 20m

$516

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 11/1

11:50 pm-5:10 pm

2 stops32h 20m

Oslo Gardermoen

Tue 11/10

6:45 am-9:05 pm

2 stops23h 20m

$517

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sat 8/15

7:00 pm-12:35 pm

1 stop32h 35m

Oslo Gardermoen

Thu 9/3

1:50 pm-5:55 pm

1 stop13h 05m

$518

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 9/15

6:50 pm-10:05 pm

1 stop18h 15m

Oslo Gardermoen

Tue 9/29

9:55 am-9:52 am

2 stops32h 57m

$519

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sat 9/26

10:58 pm-5:15 pm

2 stops33h 17m

Oslo Gardermoen

Sat 10/17

7:15 am-4:59 pm

1 stop18h 44m

$520

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 9/8

8:00 am-3:15 pm

2 stops22h 15m

Oslo Gardermoen

Sun 9/20

6:25 am-6:32 pm

2 stops21h 07m

$521

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 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 $482.

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 $552 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 $495 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 $353Free CancellationRating
6.7
8,039 reviews
Search British Airways flights
IcelandairPriceFrom $393Free CancellationRating
7.0
672 reviews
Search Icelandair flights
DeltaPriceFrom $457Free CancellationRating
7.9
8,398 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $486Free CancellationRating
7.4
1,815 reviews
Search Scandinavian Airlines flights
United AirlinesPriceFrom $491Free CancellationRating
7.4
9,808 reviews
Search United Airlines flights
LufthansaPriceFrom $495Free CancellationRating
6.8
8,053 reviews
Search Lufthansa flights
KLMPriceFrom $498Free CancellationRating
7.8
1,527 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.

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