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Cheap flights from Seattle to Oslo from $214

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 5/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
1:10 pm - 5:00 pm
OSL
-
SEA
12h 50m
1 stop
$475Icelandair
Tue, Oct 20 - Wed, Nov 4
Icelandair Logo
2:35 pm - 11:35 am
SEA
-
OSL
12h 00m
1 stop
Icelandair Logo
1:10 pm - 5:00 pm
OSL
-
SEA
12h 50m
1 stop
$477Icelandair
Tue, Nov 3 - Tue, Nov 17
Multiple Airlines Logo
6:50 pm - 10:05 pm
SEA
-
OSL
18h 15m
1 stop
Multiple Airlines Logo
7:15 am - 10:42 pm
OSL
-
SEA
24h 27m
2 stops
$480Multiple Airlines
Fri, Oct 16 - Fri, Oct 23
Multiple Airlines Logo
5:45 am - 5:40 pm
SEA
-
OSL
26h 55m
2 stops
Multiple Airlines Logo
6:15 am - 12:10 pm
OSL
-
SEA
14h 55m
1 stop
$485Multiple Airlines
Sun, Nov 1 - Tue, Nov 10
Multiple Airlines Logo
3:10 pm - 5:40 pm
SEA
-
OSL
17h 30m
1 stop
Multiple Airlines Logo
1:00 pm - 11:21 pm
OSL
-
SEA
43h 21m
2 stops
$491Multiple Airlines
Sun, Nov 1 - Tue, Nov 10
Air Canada Logo
10:35 am - 5:40 pm
SEA
-
OSL
22h 05m
2 stops
Air Canada Logo
6:10 am - 6:26 pm
OSL
-
SEA
21h 16m
2 stops
$492Air Canada
Tue, Nov 3 - Sun, Nov 15
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
$495Icelandair
Sun, Oct 11 - Sun, Oct 18
United Airlines Logo
5:00 am - 6:00 pm
SEA
-
OSL
28h 00m
2 stops
United Airlines Logo
7:10 am - 4:59 pm
OSL
-
SEA
18h 49m
1 stop
$496United Airlines
Tue, Aug 18 - Wed, Aug 26
Multiple Airlines Logo
8:00 am - 2:45 pm
SEA
-
OSL
21h 45m
2 stops
Multiple Airlines Logo
6:45 am - 11:55 am
OSL
-
SEA
14h 10m
1 stop
$497Multiple Airlines
Thu, Aug 27 - Thu, Sep 10
Lufthansa Logo
3:10 pm - 5:40 pm
SEA
-
OSL
17h 30m
1 stop
Lufthansa Logo
6:15 am - 12:10 pm
OSL
-
SEA
14h 55m
1 stop
$498Lufthansa
Sun, Nov 1 - Tue, Nov 10

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 18
SEA5:00 amSeattle/Tacoma Intl
28h 00m
2 stops
OSL6:00 pmOslo Gardermoen
Aug 26
OSL7:10 amOslo Gardermoen
18h 49m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$496
United Airlines
Nov 1
SEA3:10 pmSeattle/Tacoma Intl
17h 30m
1 stop
OSL5:40 pmOslo Gardermoen
Nov 10
OSL6:15 amOslo Gardermoen
14h 55m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
$500
United Airlines
Nov 1
SEA3:10 pmSeattle/Tacoma Intl
17h 30m
1 stop
OSL5:40 pmOslo Gardermoen
Nov 10
OSL6:45 amOslo Gardermoen
23h 20m
2 stops
SEA9:05 pmSeattle/Tacoma Intl
$504

Icelandair flights from Seattle to Oslo Gardermoen Airport

Our best Icelandair deals on Seattle to Oslo Gardermoen Airport flight tickets
Icelandair
Oct 20
SEA3:40 pmSeattle/Tacoma Intl
11h 55m
1 stop
OSL12:35 pmOslo Gardermoen
Nov 4
OSL1:10 pmOslo Gardermoen
12h 50m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$475
Icelandair
Nov 3
SEA2:35 pmSeattle/Tacoma Intl
12h 00m
1 stop
OSL11:35 amOslo Gardermoen
Nov 17
OSL1:10 pmOslo Gardermoen
12h 50m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$477
Icelandair
Oct 11
SEA7:00 pmSeattle/Tacoma Intl
11h 25m
1 stop
OSL3:25 pmOslo Gardermoen
Oct 18
OSL4:30 pmOslo Gardermoen
34h 25m
1 stop
SEA5:55 pmSeattle/Tacoma Intl
$495

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 May 8, 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 10/20

3:40 pm-12:35 pm

1 stop11h 55m

Oslo Gardermoen

Wed 11/4

1:10 pm-5:00 pm

1 stop12h 50m

$475

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 11/3

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Tue 11/17

1:10 pm-5:00 pm

1 stop12h 50m

$477

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 10/16

6:50 pm-10:05 pm

1 stop18h 15m

Oslo Gardermoen

Fri 10/23

7:15 am-10:42 pm

2 stops24h 27m

$480

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 11/1

5:45 am-5:40 pm

2 stops26h 55m

Oslo Gardermoen

Tue 11/10

6:15 am-12:10 pm

1 stop14h 55m

$485

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 11/1

3:10 pm-5:40 pm

1 stop17h 30m

Oslo Gardermoen

Tue 11/10

1:00 pm-11:21 pm

2 stops43h 21m

$491

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 11/3

10:35 am-5:40 pm

2 stops22h 05m

Oslo Gardermoen

Sun 11/15

6:10 am-6:26 pm

2 stops21h 16m

$492

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 10/11

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Sun 10/18

4:30 pm-5:55 pm

1 stop34h 25m

$495

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 8/18

5:00 am-6:00 pm

2 stops28h 00m

Oslo Gardermoen

Wed 8/26

7:10 am-4:59 pm

1 stop18h 49m

$496

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Thu 8/27

8:00 am-2:45 pm

2 stops21h 45m

Oslo Gardermoen

Thu 9/10

6:45 am-11:55 am

1 stop14h 10m

$497

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 11/1

3:10 pm-5:40 pm

1 stop17h 30m

Oslo Gardermoen

Tue 11/10

6:15 am-12:10 pm

1 stop14h 55m

$498

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 $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 $550 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
7,952 reviews
Search British Airways flights
IcelandairPriceFrom $390Free CancellationRating
7.0
653 reviews
Search Icelandair flights
DeltaPriceFrom $457Free CancellationRating
7.9
8,456 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $486Free CancellationRating
7.4
1,770 reviews
Search Scandinavian Airlines flights
United AirlinesPriceFrom $491Free CancellationRating
7.4
9,694 reviews
Search United Airlines flights
KLMPriceFrom $498Free CancellationRating
7.8
1,511 reviews
Search KLM flights
LufthansaPriceFrom $520Free CancellationRating
6.8
7,980 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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