What is the cheapest airline that flies from Washington to Oslo Gardermoen?

Icelandair, American Airlines, and British Airways are the most popular carriers operating from Washington to Oslo Gardermoen

What airlines fly to Oslo Gardermoen Airport?

Icelandair, Scandinavian Airlines and Delta are the top three most popular airlines that fly to Oslo Gardermoen Airport from State of Washington according to our data. Icelandair is the first choice among our users, with 62% of people opting to fly with this airline when traveling to Oslo Gardermoen Airport. Keep in mind that there are 10 different airlines that fly to Oslo Gardermoen Airport on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Oslo Gardermoen Airport?

Average flight duration from State of Washington to Oslo Gardermoen Airport depends on which airport you fly into and out of. Flying from Seattle to Oslo Gardermoen Airport is 12h on average, while flying from Spokane to Oslo Gardermoen Airport is 16h 59m on average. Oslo Gardermoen Airport is the most popular airport in Oslo Gardermoen Airport.

When did momondo last update prices for flights from Washington to Oslo Gardermoen Airport?

Prices for flights from Washington to Oslo Gardermoen Airport are updated daily.

How many operators does momondo search for flights from Washington to Oslo Gardermoen Airport?

There are 10 operators available for flights from Washington to Oslo Gardermoen Airport as of August 2025.

How old do you have to be to fly from Washington to Oslo Gardermoen Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington 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.

$327 Cheap Flights from State of Washington to Oslo Gardermoen Airport in 2025

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Find the cheapest flights from Washington to Oslo

Round-trip

One-way

Last minute

Cheap round-trip flights

3:35 pm - 11:35 amSEA-OSL

12h 00m1 stop

1:10 pm - 5:00 pmOSL-SEA

12h 50m1 stop

$390Icelandair

Find Deal

Tue, Oct 28 - Fri, Nov 7

3:35 pm - 11:35 amSEA-OSL

12h 00m1 stop

1:10 pm - 5:00 pmOSL-SEA

12h 50m1 stop

$391Icelandair

Find Deal

Tue, Oct 28 - Fri, Nov 7

7:00 pm - 12:35 pmSEA-OSL

32h 35m1 stop

1:10 pm - 5:00 pmOSL-SEA

12h 50m1 stop

$392Icelandair

Find Deal

Fri, Oct 24 - Mon, Nov 10

9:20 am - 2:10 pmSEA-OSL

20h 50m2 stops

11:45 am - 4:55 pmOSL-SEA

14h 10m1 stop

$475British Airways

Find Deal

Tue, Oct 28 - Fri, Nov 7

6:50 pm - 10:40 pmSEA-OSL

18h 50m1 stop

8:25 am - 7:03 pmOSL-SEA

19h 38m2 stops

$482British Airways

Find Deal

Wed, Nov 26 - Fri, Jan 9

7:44 am - 8:10 pmSEA-OSL

27h 26m2 stops

8:45 am - 7:03 pmOSL-SEA

19h 18m2 stops

$489Finnair

Find Deal

Mon, Dec 29 - Tue, Jan 13

4:20 pm - 10:35 pmSEA-OSL

21h 15m1 stop

7:10 am - 2:00 pmOSL-SEA

15h 50m1 stop

$519Scandinavian Airlines

Find Deal

Wed, Sep 24 - Fri, Oct 3

7:17 am - 11:35 amPDX-OSL

19h 18m2 stops

1:05 pm - 10:26 pmOSL-PDX

18h 21m2 stops

$618

Find Deal

Sun, Nov 30 - Sun, Dec 14

12:25 pm - 5:50 pmPDX-OSL

20h 25m2 stops

11:00 am - 10:54 pmOSL-PDX

19h 54m2 stops

$628Scandinavian Airlines

Find Deal

Wed, Oct 15 - Mon, Oct 27

1:30 pm - 3:45 pmPDX-OSL

17h 15m2 stops

11:50 am - 11:20 amOSL-PDX

32h 30m1 stop

$631

Find Deal

Tue, Sep 9 - Tue, Sep 16

Icelandair flights from State of Washington to Oslo Gardermoen Airport

Our best Icelandair deals on State of Washington to Oslo Gardermoen Airport flight tickets

Icelandair

Oct 28

SEA3:35 pmSeattle/Tacoma Intl

12h 00m

1 stop

OSL11:35 amOslo Gardermoen

Nov 7

OSL1:10 pmOslo Gardermoen

12h 50m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$390

Find similar

Icelandair

Oct 28

SEA3:35 pmSeattle/Tacoma Intl

12h 00m

1 stop

OSL11:35 amOslo Gardermoen

Nov 7

OSL1:10 pmOslo Gardermoen

12h 50m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$391

Find similar

Icelandair

Oct 24

SEA7:00 pmSeattle/Tacoma Intl

32h 35m

1 stop

OSL12:35 pmOslo Gardermoen

Nov 10

OSL1:10 pmOslo Gardermoen

12h 50m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$392

Find similar

Delta flights from State of Washington to Oslo Gardermoen Airport

Our best Delta deals on State of Washington to Oslo Gardermoen Airport flight tickets

Delta

Aug 18

SEA5:40 pmSeattle/Tacoma Intl

15h 55m

1 stop

OSL6:35 pmOslo Gardermoen

Aug 25

OSL6:05 amOslo Gardermoen

19h 33m

2 stops

SEA4:38 pmSeattle/Tacoma Intl

$592

Find similar

Delta

Oct 15

PDX1:55 pmPortland

19h 55m

2 stops

OSL6:50 pmOslo Gardermoen

Oct 27

OSL6:30 amOslo Gardermoen

13h 55m

1 stop

PDX12:25 pmPortland

$630

Find similar

Delta

Aug 24

SEA1:30 pmSeattle/Tacoma Intl

18h 10m

1 stop

OSL4:40 pmOslo Gardermoen

Sep 7

OSL9:20 amOslo Gardermoen

20h 04m

2 stops

SEA8:24 pmSeattle/Tacoma Intl

$631

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Washington 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 10/28

3:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Fri 11/7

1:10 pm-5:00 pm

1 stop12h 50m

$390

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 10/28

3:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Fri 11/7

1:10 pm-5:00 pm

1 stop12h 50m

$391

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 10/24

7:00 pm-12:35 pm

1 stop32h 35m

Oslo Gardermoen

Mon 11/10

1:10 pm-5:00 pm

1 stop12h 50m

$392

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 10/28

9:20 am-2:10 pm

2 stops20h 50m

Oslo Gardermoen

Fri 11/7

11:45 am-4:55 pm

1 stop14h 10m

$475

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 11/26

6:50 pm-10:40 pm

1 stop18h 50m

Oslo Gardermoen

Fri 1/9

8:25 am-7:03 pm

2 stops19h 38m

$482

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 12/29

7:44 am-8:10 pm

2 stops27h 26m

Oslo Gardermoen

Tue 1/13

8:45 am-7:03 pm

2 stops19h 18m

$489

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 9/24

4:20 pm-10:35 pm

1 stop21h 15m

Oslo Gardermoen

Fri 10/3

7:10 am-2:00 pm

1 stop15h 50m

$519

PortlandOslo

PDX - OSL

PDXOSL

Portland

Sun 11/30

7:17 am-11:35 am

2 stops19h 18m

Oslo Gardermoen

Sun 12/14

1:05 pm-10:26 pm

2 stops18h 21m

$618

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 10/15

12:25 pm-5:50 pm

2 stops20h 25m

Oslo Gardermoen

Mon 10/27

11:00 am-10:54 pm

2 stops19h 54m

$628

PortlandOslo

PDX - OSL

PDXOSL

Portland

Tue 9/9

1:30 pm-3:45 pm

2 stops17h 15m

Oslo Gardermoen

Tue 9/16

11:50 am-11:20 am

1 stop32h 30m

$631

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington 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

Prices

Airlines

Other information

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

The cheapest month to fly to Oslo Gardermoen Airport from State of Washington is in January. Flight prices, which tend to average around $531, 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 State of Washington during October instead. Flights to Oslo Gardermoen Airport in October, while not as cheap as those in January, still average around $531.

What is the cheapest day to depart on your flight to Oslo Gardermoen Airport?

According to our data, Tuesday is the cheapest day to fly to Oslo Gardermoen Airport from State of Washington. The lowest ticket price found for a Tuesday departure recently was $772. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from State of Washington to Oslo Gardermoen Airport for around $896.

What is the cheapest time of day to depart on your flight to Oslo Gardermoen Airport?

Our most recent data shows that the best time of day to fly to Oslo Gardermoen Airport is in the evening. Flights from State of Washington to Oslo Gardermoen Airport during this time can be as low as $696. In contrast, the most expensive time of day to depart to Oslo Gardermoen Airport is in the afternoon when prices are around $959.

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 State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Oslo Gardermoen Airport for around $629 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 State of Washington for as low as $529 on momondo.

Can stopping save me money on State of Washington to Oslo Gardermoen Airport flights?

You could potentially save up to 45% on your flight if you consider stops on a State of Washington to Oslo Gardermoen Airport flight.

Cheap State of Washington to Oslo Gardermoen Airport flight deals and tips

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

Best Price Found	$327
Fastest flight time	11h 25m
Direct flights	None

The best one-way flight to Oslo Gardermoen Airport from State of Washington in the past 72 hours is $327. The best round-trip flight deal from State of Washington to Oslo Gardermoen Airport found on momondo in the last 72 hours is $390.

The fastest flight from State of Washington to Oslo Gardermoen Airport takes 11h 25m

There are no direct flights from State of Washington to Oslo Gardermoen Airport. Popular non-direct routes for this connection are Seattle/Tacoma Intl Airport - Oslo Gardermoen Airport and Portland Airport - Oslo Gardermoen Airport.

Search flight deals

When did momondo last update prices for flights from Washington to Oslo Gardermoen Airport?
Prices for flights from Washington to Oslo Gardermoen Airport are updated daily.
How many operators does momondo search for flights from Washington to Oslo Gardermoen Airport?
There are 10 operators available for flights from Washington to Oslo Gardermoen Airport as of August 2025.
How old do you have to be to fly from Washington to Oslo Gardermoen Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington 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.

Best airlines flying from State of Washington to Oslo Gardermoen Airport

Compare and see reviews for airlines that fly from State of Washington to Oslo Gardermoen Airport with momondo

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom $414	Free Cancellation	Rating 7.0 526 reviews	Search Icelandair flights
British Airways	PriceFrom $475	Free Cancellation	Rating 6.6 7,265 reviews	Search British Airways flights
Finnair	PriceFrom $484	Free Cancellation	Rating 7.6 1,321 reviews	Search Finnair flights
Scandinavian Airlines	PriceFrom $494	Free Cancellation	Rating 7.4 1,466 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $517	Free Cancellation	Rating 7.4 8,920 reviews	Search United Airlines flights
KLM	PriceFrom $551	Free Cancellation	Rating 7.8 1,381 reviews	Search KLM flights
Lufthansa	PriceFrom $551	Free Cancellation	Rating 6.8 7,317 reviews	Search Lufthansa flights
Air France	PriceFrom $552	Free Cancellation	Rating 7.4 1,467 reviews	Search Air France flights
Delta	PriceFrom $573	Free Cancellation	Rating 8.0 7,979 reviews	Search Delta flights
American Airlines	PriceFrom $578	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights

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Fredrikstad

Drammen

Lillehammer

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

It is quick and easy to find Washington to Oslo flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Oslo that suits you.

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

momondo does allow users to show only those flights to Oslo from Washington which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Washington to Oslo flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Oslo, momondo offers a useful price alert feature which will track prices for flights to Oslo from Washington and alert you when they change.

An easier way to manage your Oslo Gardermoen Airport trip

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Cheap flights from Washington to Oslo from $327

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Oslo departing on 9/20. 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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Icelandair flights from State of Washington to Oslo Gardermoen Airport

Our best Icelandair deals on State of Washington to Oslo Gardermoen Airport flight tickets

Delta flights from State of Washington to Oslo Gardermoen Airport

Our best Delta deals on State of Washington to Oslo Gardermoen Airport flight tickets

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Use the filters below to find and compare flights from Washington to Oslo Gardermoen Airport that are best for you.

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How to get the cheapest flight ticket from State of Washington 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?

What is the cheapest day to depart on your flight to Oslo Gardermoen Airport?

What is the cheapest time of day to depart on your flight to Oslo Gardermoen Airport?

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

Can stopping save me money on State of Washington to Oslo Gardermoen Airport flights?

You could potentially save up to 45% on your flight if you consider stops on a State of Washington to Oslo Gardermoen Airport flight.

What is the cheapest airline that flies from Washington to Oslo Gardermoen?

Icelandair, American Airlines, and British Airways are the most popular carriers operating from Washington to Oslo Gardermoen

What airlines fly to Oslo Gardermoen Airport?

How long does it take to fly to Oslo Gardermoen Airport?

Cheap State of Washington to Oslo Gardermoen Airport flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

When did momondo last update prices for flights from Washington to Oslo Gardermoen Airport?

How many operators does momondo search for flights from Washington to Oslo Gardermoen Airport?

How old do you have to be to fly from Washington to Oslo Gardermoen Airport?

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

Best airlines flying from State of Washington to Oslo Gardermoen Airport

Compare and see reviews for airlines that fly from State of Washington to Oslo Gardermoen Airport with momondo

Traveling to a place near Oslo?

Why use momondo?

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

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

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

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

An easier way to manage your Oslo Gardermoen Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Oslo

Popular cities in Norway

Popular flights according to clicks in the last 7 days on momondo