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Cheap flights from Seattle to Oslo from $265

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 8/22. 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
1:50 pm - 11:45 am
OSL
-
SEA
30h 55m
1 stop
$492Icelandair
Tue, Aug 18 - Mon, Aug 24
Icelandair Logo
7:00 pm - 3:25 pm
SEA
-
OSL
11h 25m
1 stop
Icelandair Logo
4:30 pm - 11:45 am
OSL
-
SEA
28h 15m
1 stop
$492Icelandair
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
8:40 am - 5:40 pm
SEA
-
OSL
24h 00m
2 stops
Multiple Airlines Logo
6:15 am - 12:00 pm
OSL
-
SEA
14h 45m
1 stop
$492Multiple Airlines
Tue, Nov 10 - Thu, Nov 19
Multiple Airlines Logo
8:40 am - 5:40 pm
SEA
-
OSL
24h 00m
2 stops
Multiple Airlines Logo
6:15 am - 6:22 pm
OSL
-
SEA
21h 07m
2 stops
$492Multiple Airlines
Tue, Nov 10 - Thu, Nov 19
Lufthansa Logo
2:50 pm - 5:40 pm
SEA
-
OSL
17h 50m
1 stop
Lufthansa Logo
6:15 am - 12:00 pm
OSL
-
SEA
14h 45m
1 stop
$493Lufthansa
Wed, Nov 4 - Thu, Nov 12
United Airlines Logo
5:00 am - 5:40 pm
SEA
-
OSL
27h 40m
2 stops
United Airlines Logo
11:45 am - 4:59 pm
OSL
-
SEA
14h 14m
1 stop
$493United Airlines
Mon, Jan 4 - Fri, Apr 2
Lufthansa Logo
2:50 pm - 5:40 pm
SEA
-
OSL
17h 50m
1 stop
Lufthansa Logo
6:15 am - 12:00 pm
OSL
-
SEA
14h 45m
1 stop
$494Lufthansa
Wed, Nov 4 - Thu, Nov 12
United Airlines Logo
6:50 pm - 5:55 pm
SEA
-
OSL
14h 05m
1 stop
United Airlines Logo
6:55 am - 6:32 pm
OSL
-
SEA
20h 37m
2 stops
$496United Airlines
Wed, Aug 19 - Tue, Aug 25
Scandinavian Airlines Logo
3:55 pm - 9:00 pm
SEA
-
OSL
20h 05m
1 stop
Scandinavian Airlines Logo
5:15 pm - 1:45 pm
OSL
-
SEA
29h 30m
1 stop
$509Scandinavian Airlines
Sat, Sep 26 - Thu, Oct 8
Scandinavian Airlines Logo
3:55 pm - 4:35 pm
SEA
-
OSL
15h 40m
1 stop
Scandinavian Airlines Logo
3:05 pm - 1:45 pm
OSL
-
SEA
31h 40m
1 stop
$509Scandinavian Airlines
Fri, Sep 25 - Thu, Oct 8

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Icelandair flights from Seattle to Oslo Gardermoen Airport

Our best Icelandair deals on Seattle to Oslo Gardermoen Airport flight tickets
Icelandair
Aug 18
SEA7:00 pmSeattle/Tacoma Intl
11h 25m
1 stop
OSL3:25 pmOslo Gardermoen
Aug 24
OSL1:50 pmOslo Gardermoen
30h 55m
1 stop
SEA11:45 amSeattle/Tacoma Intl
$492
Icelandair
Aug 16
SEA7:00 pmSeattle/Tacoma Intl
32h 35m
1 stop
OSL12:35 pmOslo Gardermoen
Aug 24
OSL1:50 pmOslo Gardermoen
30h 55m
1 stop
SEA11:45 amSeattle/Tacoma Intl
$494
Icelandair
Sep 24
SEA7:00 pmSeattle/Tacoma Intl
32h 35m
1 stop
OSL12:35 pmOslo Gardermoen
Oct 11
OSL4:30 pmOslo Gardermoen
13h 10m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$502

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
OSL7:10 amOslo Gardermoen
18h 49m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$506
Lufthansa
Sep 15
SEA6:50 pmSeattle/Tacoma Intl
14h 10m
1 stop
OSL6:00 pmOslo Gardermoen
Sep 29
OSL7:10 amOslo Gardermoen
18h 49m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$507
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
$511

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 August 4, 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 8/18

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Mon 8/24

1:50 pm-11:45 am

1 stop30h 55m

$492

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 8/17

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Mon 8/24

4:30 pm-11:45 am

1 stop28h 15m

$492

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 11/10

8:40 am-5:40 pm

2 stops24h 00m

Oslo Gardermoen

Thu 11/19

6:15 am-12:00 pm

1 stop14h 45m

$492

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 11/10

8:40 am-5:40 pm

2 stops24h 00m

Oslo Gardermoen

Thu 11/19

6:15 am-6:22 pm

2 stops21h 07m

$492
Quickest round-trip

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 11/4

2:50 pm-5:40 pm

1 stop17h 50m

Oslo Gardermoen

Thu 11/12

6:15 am-12:00 pm

1 stop14h 45m

$493

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 1/4

5:00 am-5:40 pm

2 stops27h 40m

Oslo Gardermoen

Fri 4/2

11:45 am-4:59 pm

1 stop14h 14m

$493

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 11/4

2:50 pm-5:40 pm

1 stop17h 50m

Oslo Gardermoen

Thu 11/12

6:15 am-12:00 pm

1 stop14h 45m

$494

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 8/19

6:50 pm-5:55 pm

1 stop14h 05m

Oslo Gardermoen

Tue 8/25

6:55 am-6:32 pm

2 stops20h 37m

$496

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sat 9/26

3:55 pm-9:00 pm

1 stop20h 05m

Oslo Gardermoen

Thu 10/8

5:15 pm-1:45 pm

1 stop29h 30m

$509

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 9/25

3:55 pm-4:35 pm

1 stop15h 40m

Oslo Gardermoen

Thu 10/8

3:05 pm-1:45 pm

1 stop31h 40m

$509

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?

Prices are currently low for flights on this route.

Typical prices usually range from $502 to $666.
The lowest price recently found on this route was $492.

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 $558 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 $507 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
8,148 reviews
Search British Airways flights
IcelandairPriceFrom $393Free CancellationRating
6.9
720 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $426Free CancellationRating
7.4
1,913 reviews
Search Scandinavian Airlines flights
DeltaPriceFrom $468Free CancellationRating
7.8
8,480 reviews
Search Delta flights
United AirlinesPriceFrom $491Free CancellationRating
7.4
10,059 reviews
Search United Airlines flights
LufthansaPriceFrom $493Free CancellationRating
6.8
8,175 reviews
Search Lufthansa flights
KLMPriceFrom $506Free CancellationRating
7.8
1,552 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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