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

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

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 11h 25m on average, while flying from Spokane to Oslo Gardermoen Airport is 21h 05m on average. Oslo Gardermoen Airport is the most popular airport in Oslo Gardermoen Airport.

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 66% 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.

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 September 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.

$361 Cheap Flights from State of Washington to Oslo Gardermoen Airport in 2025/26

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Find the cheapest flights from Washington to Oslo

Round-trip

One-way

Last minute

Cheap round-trip flights

7:00 pm - 12:35 pmSEA-OSL

32h 35m1 stop

1:10 pm - 5:00 pmOSL-SEA

12h 50m1 stop

$394Icelandair

Find Deal

Fri, Oct 17 - Fri, Nov 7

3:35 pm - 11:35 amSEA-OSL

12h 00m1 stop

9:30 pm - 5:00 pmOSL-SEA

28h 30m1 stop

$408Icelandair

Find Deal

Sat, Nov 1 - Sun, Nov 16

1:00 pm - 12:20 amPDX-OSL

26h 20m2 stops

8:00 am - 10:22 pmOSL-PDX

22h 22m2 stops

$484Scandinavian Airlines

Find Deal

Mon, Mar 2 - Tue, Mar 10

10:25 am - 5:20 pmSEA-OSL

22h 55m2 stops

9:35 am - 10:22 pmOSL-SEA

21h 47m2 stops

$484Scandinavian Airlines

Find Deal

Tue, Oct 28 - Tue, Nov 4

7:50 pm - 10:40 pmSEA-OSL

18h 50m1 stop

7:05 am - 5:55 pmOSL-SEA

18h 50m1 stop

$485British Airways

Find Deal

Wed, Mar 11 - Thu, Mar 19

6:50 pm - 10:40 pmSEA-OSL

18h 50m1 stop

7:25 pm - 5:55 pmOSL-SEA

30h 30m1 stop

$486British Airways

Find Deal

Sun, Mar 1 - Tue, Mar 10

7:50 pm - 8:00 amSEA-OSL

28h 10m2 stops

12:25 pm - 12:11 amOSL-SEA

19h 46m2 stops

$496Finnair

Find Deal

Mon, Mar 9 - Tue, Mar 17

2:00 pm - 1:05 pmSEA-OSL

14h 05m1 stop

6:15 am - 12:10 pmOSL-SEA

14h 55m1 stop

$497Lufthansa

Find Deal

Tue, Nov 11 - Tue, Nov 18

7:50 pm - 8:00 amSEA-OSL

28h 10m2 stops

6:25 am - 9:10 pmOSL-SEA

22h 45m2 stops

$498Finnair

Find Deal

Mon, Mar 9 - Tue, Mar 17

7:30 am - 3:20 pmPDX-OSL

22h 50m2 stops

6:15 am - 8:38 pmOSL-PDX

23h 23m2 stops

$610Lufthansa

Find Deal

Wed, Nov 5 - Tue, Nov 11

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 17

SEA7:00 pmSeattle/Tacoma Intl

32h 35m

1 stop

OSL12:35 pmOslo Gardermoen

Nov 7

OSL1:10 pmOslo Gardermoen

12h 50m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$394

Find similar

Icelandair

Nov 1

SEA3:35 pmSeattle/Tacoma Intl

12h 00m

1 stop

OSL11:35 amOslo Gardermoen

Nov 16

OSL9:30 pmOslo Gardermoen

28h 30m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$408

Find similar

Icelandair

Oct 15

SEA7:00 pmSeattle/Tacoma Intl

32h 35m

1 stop

OSL12:35 pmOslo Gardermoen

Oct 20

OSL4:45 pmOslo Gardermoen

12h 55m

1 stop

SEA8:40 pmSeattle/Tacoma Intl

$414

Find similar

Scandinavian Airlines flights from State of Washington to Oslo Gardermoen Airport

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

Scandinavian Airlines

Mar 2

PDX1:00 pmPortland

26h 20m

2 stops

OSL12:20 amOslo Gardermoen

Mar 10

OSL8:00 amOslo Gardermoen

22h 22m

2 stops

PDX10:22 pmPortland

$484

Find similar

Scandinavian Airlines

Mar 14

SEA12:00 pmSeattle/Tacoma Intl

26h 30m

2 stops

OSL10:30 pmOslo Gardermoen

Mar 23

OSL9:05 pmOslo Gardermoen

33h 20m

2 stops

SEA10:25 pmSeattle/Tacoma Intl

$488

Find similar

Scandinavian Airlines

Feb 24

PDX7:00 amPortland

19h 15m

2 stops

OSL11:15 amOslo Gardermoen

Feb 28

OSL5:55 amOslo Gardermoen

24h 40m

2 stops

PDX9:35 pmPortland

$506

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

Fri 10/17

7:00 pm-12:35 pm

1 stop32h 35m

Oslo Gardermoen

Fri 11/7

1:10 pm-5:00 pm

1 stop12h 50m

$394

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sat 11/1

3:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Sun 11/16

9:30 pm-5:00 pm

1 stop28h 30m

$408

PortlandOslo

PDX - OSL

PDXOSL

Portland

Mon 3/2

1:00 pm-12:20 am

2 stops26h 20m

Oslo Gardermoen

Tue 3/10

8:00 am-10:22 pm

2 stops22h 22m

$484

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 10/28

10:25 am-5:20 pm

2 stops22h 55m

Oslo Gardermoen

Tue 11/4

9:35 am-10:22 pm

2 stops21h 47m

$484

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 3/11

7:50 pm-10:40 pm

1 stop18h 50m

Oslo Gardermoen

Thu 3/19

7:05 am-5:55 pm

1 stop18h 50m

$485

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 3/1

6:50 pm-10:40 pm

1 stop18h 50m

Oslo Gardermoen

Tue 3/10

7:25 pm-5:55 pm

1 stop30h 30m

$486

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 3/9

7:50 pm-8:00 am

2 stops28h 10m

Oslo Gardermoen

Tue 3/17

12:25 pm-12:11 am

2 stops19h 46m

$496

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 11/11

2:00 pm-1:05 pm

1 stop14h 05m

Oslo Gardermoen

Tue 11/18

6:15 am-12:10 pm

1 stop14h 55m

$497

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 3/9

7:50 pm-8:00 am

2 stops28h 10m

Oslo Gardermoen

Tue 3/17

6:25 am-9:10 pm

2 stops22h 45m

$498

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 11/5

7:30 am-3:20 pm

2 stops22h 50m

Oslo Gardermoen

Tue 11/11

6:15 am-8:38 pm

2 stops23h 23m

$610

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 $462, 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 $502.

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 $602 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 $527 on momondo.

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

You could potentially save up to 7% 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

Direct flights	None

There are no direct flights from State of Washington to Oslo Gardermoen Airport. There are no popular flight routes from State of Washington to 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 September 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 $404	Free Cancellation	Rating 7.0 546 reviews	Search Icelandair flights
Delta	PriceFrom $478	Free Cancellation	Rating 7.9 7,964 reviews	Search Delta flights
Finnair	PriceFrom $491	Free Cancellation	Rating 7.6 1,330 reviews	Search Finnair flights
Scandinavian Airlines	PriceFrom $494	Free Cancellation	Rating 7.4 1,507 reviews	Search Scandinavian Airlines flights
British Airways	PriceFrom $497	Free Cancellation	Rating 6.7 7,406 reviews	Search British Airways flights
United Airlines	PriceFrom $517	Free Cancellation	Rating 7.4 8,924 reviews	Search United Airlines flights
KLM	PriceFrom $524	Free Cancellation	Rating 7.8 1,390 reviews	Search KLM flights
Lufthansa	PriceFrom $551	Free Cancellation	Rating 6.8 7,435 reviews	Search Lufthansa flights
Air France	PriceFrom $552	Free Cancellation	Rating 7.4 1,468 reviews	Search Air France 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.

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Cheap flights from Washington to Oslo from $361

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 12/3. 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

Scandinavian Airlines flights from State of Washington to Oslo Gardermoen Airport

Our best Scandinavian Airlines 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 7% 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, Delta, 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

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