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

Delta, KLM, and Air France 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 65% of people opting to fly with this airline when traveling to Oslo Gardermoen Airport. Keep in mind that there are 7 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 11h 25m on average, while flying from Spokane to Oslo Gardermoen Airport is 14h 49m 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 7 operators available for flights from Washington to Oslo Gardermoen Airport as of May 2026.

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.

$220 Cheap Flights from State of Washington to Oslo Gardermoen Airport in 2026

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Find the cheapest flights from Washington to Oslo

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

3:40 pm - 12:35 pm

SEA

OSL

11h 55m

1 stop

1:10 pm - 5:00 pm

OSL

SEA

12h 50m

1 stop

$475Icelandair

Tue, Oct 20 - Wed, Nov 4

2:35 pm - 11:35 am

SEA

OSL

12h 00m

1 stop

1:10 pm - 5:00 pm

OSL

SEA

12h 50m

1 stop

$477Icelandair

Tue, Nov 3 - Thu, Nov 19

3:10 pm - 5:40 pm

SEA

OSL

17h 30m

1 stop

1:00 pm - 11:21 pm

OSL

SEA

43h 21m

2 stops

$491Multiple Airlines

Sun, Nov 1 - Tue, Nov 10

10:35 am - 5:40 pm

SEA

OSL

22h 05m

2 stops

6:10 am - 6:26 pm

OSL

SEA

21h 16m

2 stops

$492Air Canada

Tue, Nov 3 - Sun, Nov 15

8:00 am - 2:45 pm

SEA

OSL

21h 45m

2 stops

6:45 am - 11:55 am

OSL

SEA

14h 10m

1 stop

$497Multiple Airlines

Thu, Aug 27 - Thu, Sep 10

3:10 pm - 5:40 pm

SEA

OSL

17h 30m

1 stop

6:15 am - 12:10 pm

OSL

SEA

14h 55m

1 stop

$499Lufthansa

Sun, Nov 1 - Tue, Nov 10

3:10 pm - 5:40 pm

SEA

OSL

17h 30m

1 stop

6:15 am - 12:10 pm

OSL

SEA

14h 55m

1 stop

$500United Airlines

Sun, Nov 1 - Tue, Nov 10

3:00 pm - 10:05 pm

SEA

OSL

22h 05m

2 stops

7:10 am - 4:59 pm

OSL

SEA

18h 49m

1 stop

$501Lufthansa

Thu, Jun 11 - Wed, Jun 17

10:35 am - 5:40 pm

SEA

OSL

22h 05m

2 stops

11:50 am - 6:26 pm

OSL

SEA

39h 36m

2 stops

$502Air Canada

Tue, Nov 3 - Mon, Nov 16

11:09 am - 10:05 pm

PDX

OSL

25h 56m

2 stops

7:10 am - 10:51 pm

OSL

PDX

24h 41m

2 stops

$506United Airlines

Thu, Aug 13 - Sun, Aug 23

Lufthansa flights from State of Washington to Oslo Gardermoen Airport

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

Lufthansa

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

$499

Lufthansa

Jun 11

SEA3:00 pmSeattle/Tacoma Intl

22h 05m

2 stops

OSL10:05 pmOslo Gardermoen

Jun 17

OSL7:10 amOslo Gardermoen

18h 49m

1 stop

SEA4:59 pmSeattle/Tacoma Intl

$501

Lufthansa

Aug 18

SEA6:50 pmSeattle/Tacoma Intl

18h 15m

1 stop

OSL10:05 pmOslo Gardermoen

Aug 27

OSL7:10 amOslo Gardermoen

18h 49m

1 stop

SEA4:59 pmSeattle/Tacoma Intl

$502

United Airlines flights from State of Washington to Oslo Gardermoen Airport

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

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

United Airlines

Aug 13

PDX11:09 amPortland

25h 56m

2 stops

OSL10:05 pmOslo Gardermoen

Aug 23

OSL7:10 amOslo Gardermoen

24h 41m

2 stops

PDX10:51 pmPortland

$506

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

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

Thu 11/19

1:10 pm-5:00 pm

1 stop12h 50m

$477

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

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

$499

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

$500

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Thu 6/11

3:00 pm-10:05 pm

2 stops22h 05m

Oslo Gardermoen

Wed 6/17

7:10 am-4:59 pm

1 stop18h 49m

$501

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 11/3

10:35 am-5:40 pm

2 stops22h 05m

Oslo Gardermoen

Mon 11/16

11:50 am-6:26 pm

2 stops39h 36m

$502

PortlandOslo

PDX - OSL

PDXOSL

Portland

Thu 8/13

11:09 am-10:05 pm

2 stops25h 56m

Oslo Gardermoen

Sun 8/23

7:10 am-10:51 pm

2 stops24h 41m

$506

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

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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 September. Flight prices, which tend to average around $245, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Oslo Gardermoen Airport from State of Washington during April instead. Flights to Oslo Gardermoen Airport in April, while not as cheap as those in September, still average around $308.

How far in advance should I book a flight from Washington 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 $548 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 $494 on momondo.

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

You could potentially save up to 40% 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

Fastest flight time	11h 20m
Direct flights	None

The fastest flight from State of Washington to Oslo Gardermoen Airport takes 11h 20m

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.

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Frequently asked questions about flying from Washington to 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 7 operators available for flights from Washington to Oslo Gardermoen Airport as of May 2026.
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
British Airways	PriceFrom $353	Free Cancellation	Rating 6.7 7,964 reviews	Search British Airways flights
Icelandair	PriceFrom $390	Free Cancellation	Rating 7.0 653 reviews	Search Icelandair flights
Delta	PriceFrom $457	Free Cancellation	Rating 7.9 8,455 reviews	Search Delta flights
Scandinavian Airlines	PriceFrom $486	Free Cancellation	Rating 7.4 1,771 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $491	Free Cancellation	Rating 7.4 9,694 reviews	Search United Airlines flights
Lufthansa	PriceFrom $495	Free Cancellation	Rating 6.8 7,985 reviews	Search Lufthansa flights
KLM	PriceFrom $498	Free Cancellation	Rating 7.8 1,513 reviews	Search KLM flights

Gardermoen

Fredrikstad

Lillehammer

Drammen

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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 $220

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 8/13. 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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Lufthansa flights from State of Washington to Oslo Gardermoen Airport

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United Airlines flights from State of Washington to Oslo Gardermoen Airport

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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

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

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

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

What is the cheapest airline that flies 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

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Frequently asked questions about flying from Washington to Oslo Gardermoen Airport

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