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

KLM and Delta are the most popular carriers operating from Oslo Gardermoen to Washington

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

Prices for flights from Oslo Gardermoen Airport to Washington were last updated today.

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

As of October 2026, there are 2 operators available to choose from for flights from Oslo Gardermoen Airport to Washington.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oslo Gardermoen Airport to Washington.

What documentation or ID do you need to fly to Washington?

The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$429 Cheap Flights from Oslo Gardermoen Airport to State of Washington in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Oslo Gardermoen Airport to Washington

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:30 pm - 6:00 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

34h 30m1 stop Reykjavik Keflavik Intl

2:35 pm - 11:35 amSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

12h 00m1 stop Reykjavik Keflavik Intl

$533Icelandair

Mon, Oct 26 - Sun, Nov 8

3:30 pm - 6:00 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

34h 30m1 stop Reykjavik Keflavik Intl

2:35 pm - 11:35 amSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

12h 00m1 stop Reykjavik Keflavik Intl

$533Icelandair

Mon, Oct 26 - Mon, Nov 2

3:30 pm - 6:00 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

34h 30m1 stop Reykjavik Keflavik Intl

2:35 pm - 11:35 amSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

12h 00m1 stop Reykjavik Keflavik Intl

$546Icelandair

Mon, Oct 26 - Tue, Nov 10

8:40 am - 7:57 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

20h 17m2 stops Helsinki-Vantaa Dallas/Fort Worth

1:38 pm - 8:05 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

21h 27m2 stops Los Angeles Helsinki-Vantaa

$547Finnair

Fri, Nov 6 - Sun, Nov 22

4:30 pm - 5:55 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

34h 25m1 stop Reykjavik Keflavik Intl

2:35 pm - 11:35 amSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

12h 00m1 stop Reykjavik Keflavik Intl

$547Icelandair

Mon, Oct 19 - Sun, Nov 1

4:30 pm - 5:55 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

34h 25m1 stop Reykjavik Keflavik Intl

2:35 pm - 11:35 amSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

12h 00m1 stop Reykjavik Keflavik Intl

$557Icelandair

Mon, Oct 19 - Sun, Nov 1

1:10 pm - 5:00 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

12h 50m1 stop Reykjavik Keflavik Intl

2:35 pm - 11:35 amSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

12h 00m1 stop Reykjavik Keflavik Intl

$585Icelandair

Wed, Dec 9 - Sun, Dec 13

1:10 pm - 5:00 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

12h 50m1 stop Reykjavik Keflavik Intl

2:35 pm - 11:35 amSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

12h 00m1 stop Reykjavik Keflavik Intl

$588Icelandair

Wed, Dec 9 - Sun, Dec 13

8:40 am - 12:36 amOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

23h 56m2 stops Helsinki-Vantaa Chicago O'Hare Intl

7:30 am - 8:05 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

27h 35m2 stops Dallas/Fort Worth Helsinki-Vantaa

$594Multiple Airlines

Mon, Oct 26 - Mon, Nov 2

6:45 am - 4:50 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

19h 05m1 stop London Heathrow

6:45 pm - 11:00 amSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

31h 15m1 stop London Heathrow

$595British Airways

Sat, Nov 7 - Sat, Nov 21

Cheap last minute flights

Enter your travel dates to find the best prices.

1:50 pm - 8:40 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

15h 50m1 stop Reykjavik Keflavik Intl

3:40 pm - 3:25 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

14h 45m1 stop Reykjavik Keflavik Intl

$927Icelandair

Sun, Oct 4 - Sat, Oct 10

5:15 pm - 11:14 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

38h 59m2 stops Kastrup Copenhagen San Francisco

3:55 pm - 8:10 amSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

31h 15m1 stop Kastrup Copenhagen

$964Scandinavian Airlines

Sun, Oct 4 - Sat, Oct 10

5:15 pm - 11:14 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

38h 59m2 stops Kastrup Copenhagen San Francisco

10:39 am - 8:10 amSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

36h 31m2 stops Chicago O'Hare Intl Kastrup Copenhagen

$1,035Scandinavian Airlines

Sun, Oct 4 - Sat, Oct 10

9:55 am - 9:01 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

44h 06m3 stops Frankfurt am Main Chicago O'Hare Intl San Francisco

8:25 am - 9:05 amSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

39h 40m2 stops Washington, D.C. Dulles Intl Frankfurt am Main

$1,142United Airlines

Sun, Oct 4 - Sat, Oct 10

9:55 am - 9:01 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

44h 06m3 stops Frankfurt am Main Chicago O'Hare Intl San Francisco

8:30 am - 5:15 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

47h 45m3 stops Denver Intl Newark Brussels Bruxelles-National

$1,144United Airlines

Sun, Oct 4 - Sat, Oct 10

7:45 pm - 8:37 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

57h 52m4 stops Stockholm Arlanda Addis Ababa Bole Lome Washington, D.C. Dulles Intl

8:25 am - 8:45 amSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

39h 20m4 stops Washington, D.C. Dulles Intl Lome Addis Ababa Bole Stockholm Arlanda

$3,008Ethiopian Air

Sun, Oct 4 - Sat, Oct 10

7:45 pm - 8:37 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

57h 52m4 stops Stockholm Arlanda Addis Ababa Bole Lome Washington, D.C. Dulles Intl

8:25 am - 8:45 amSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

63h 20m3 stops Washington, D.C. Dulles Intl Addis Ababa Bole Stockholm Arlanda

$3,156Ethiopian Air

Sun, Oct 4 - Sat, Oct 10

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Icelandair flights from Oslo Gardermoen Airport to State of Washington

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

Icelandair

Oct 26

OSL3:30 pmOslo Gardermoen

34h 30m

1 stop

SEA6:00 pmSeattle/Tacoma Intl

Nov 8

SEA2:35 pmSeattle/Tacoma Intl

12h 00m

1 stop

OSL11:35 amOslo Gardermoen

$533

Icelandair

Oct 26

OSL3:30 pmOslo Gardermoen

34h 30m

1 stop

SEA6:00 pmSeattle/Tacoma Intl

Nov 10

SEA2:35 pmSeattle/Tacoma Intl

12h 00m

1 stop

OSL11:35 amOslo Gardermoen

$546

Icelandair

Oct 19

OSL4:30 pmOslo Gardermoen

34h 25m

1 stop

SEA5:55 pmSeattle/Tacoma Intl

Nov 1

SEA2:35 pmSeattle/Tacoma Intl

12h 00m

1 stop

OSL11:35 amOslo Gardermoen

$547

British Airways flights from Oslo Gardermoen Airport to State of Washington

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

British Airways

Nov 7

OSL6:45 amOslo Gardermoen

19h 05m

1 stop

SEA4:50 pmSeattle/Tacoma Intl

Nov 21

SEA6:45 pmSeattle/Tacoma Intl

31h 15m

1 stop

OSL11:00 amOslo Gardermoen

$595

British Airways

Nov 7

OSL6:45 amOslo Gardermoen

26h 50m

2 stops

SEA12:35 amSeattle/Tacoma Intl

Nov 21

SEA6:45 pmSeattle/Tacoma Intl

31h 15m

1 stop

OSL11:00 amOslo Gardermoen

$600

British Airways

Dec 9

OSL11:55 amOslo Gardermoen

32h 30m

1 stop

SEA11:25 amSeattle/Tacoma Intl

Dec 13

SEA6:20 amSeattle/Tacoma Intl

31h 20m

2 stops

OSL10:40 pmOslo Gardermoen

$612

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OsloSeattle

OSL Oslo Gardermoen - SEA Seattle/Tacoma Intl

OSLSEA

Oslo Gardermoen

Mon 10/26

3:30 pm-6:00 pm

1 stop34h 30m

Seattle/Tacoma Intl

Sun 11/8

2:35 pm-11:35 am

1 stop12h 00m

$533

OsloSeattle

OSL Oslo Gardermoen - SEA Seattle/Tacoma Intl

OSLSEA

Oslo Gardermoen

Mon 10/26

3:30 pm-6:00 pm

1 stop34h 30m

Seattle/Tacoma Intl

Mon 11/2

2:35 pm-11:35 am

1 stop12h 00m

$533

OsloSeattle

OSL Oslo Gardermoen - SEA Seattle/Tacoma Intl

OSLSEA

Oslo Gardermoen

Mon 10/26

3:30 pm-6:00 pm

1 stop34h 30m

Seattle/Tacoma Intl

Tue 11/10

2:35 pm-11:35 am

1 stop12h 00m

$546

OsloSeattle

OSL Oslo Gardermoen - SEA Seattle/Tacoma Intl

OSLSEA

Oslo Gardermoen

Fri 11/6

8:40 am-7:57 pm

2 stops20h 17m

Seattle/Tacoma Intl

Sun 11/22

1:38 pm-8:05 pm

2 stops21h 27m

$547

OsloSeattle

OSL Oslo Gardermoen - SEA Seattle/Tacoma Intl

OSLSEA

Oslo Gardermoen

Mon 10/19

4:30 pm-5:55 pm

1 stop34h 25m

Seattle/Tacoma Intl

Sun 11/1

2:35 pm-11:35 am

1 stop12h 00m

$547

OsloSeattle

OSL Oslo Gardermoen - SEA Seattle/Tacoma Intl

OSLSEA

Oslo Gardermoen

Mon 10/19

4:30 pm-5:55 pm

1 stop34h 25m

Seattle/Tacoma Intl

Sun 11/1

2:35 pm-11:35 am

1 stop12h 00m

$557

Quickest round-trip

OsloSeattle

OSL Oslo Gardermoen - SEA Seattle/Tacoma Intl

OSLSEA

Oslo Gardermoen

Wed 12/9

1:10 pm-5:00 pm

1 stop12h 50m

Seattle/Tacoma Intl

Sun 12/13

2:35 pm-11:35 am

1 stop12h 00m

$585

OsloSeattle

OSL Oslo Gardermoen - SEA Seattle/Tacoma Intl

OSLSEA

Oslo Gardermoen

Wed 12/9

1:10 pm-5:00 pm

1 stop12h 50m

Seattle/Tacoma Intl

Sun 12/13

2:35 pm-11:35 am

1 stop12h 00m

$588

OsloSeattle

OSL Oslo Gardermoen - SEA Seattle/Tacoma Intl

OSLSEA

Oslo Gardermoen

Mon 10/26

8:40 am-12:36 am

2 stops23h 56m

Seattle/Tacoma Intl

Mon 11/2

7:30 am-8:05 pm

2 stops27h 35m

$594

OsloSeattle

OSL Oslo Gardermoen - SEA Seattle/Tacoma Intl

OSLSEA

Oslo Gardermoen

Sat 11/7

6:45 am-4:50 pm

1 stop19h 05m

Seattle/Tacoma Intl

Sat 11/21

6:45 pm-11:00 am

1 stop31h 15m

$595

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 Oslo Gardermoen Airport to State of Washington

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

What is the cheapest month to fly to State of Washington?

The month of April is, on average, the cheapest month to fly to State of Washington from Oslo Gardermoen Airport, with most prices found around $552. If you aren’t able to travel to State of Washington during the month of April, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $576.

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

You are more likely to see cheaper flights to State of Washington from Oslo Gardermoen Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $667 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Oslo Gardermoen Airport for as low as $595 on momondo.

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

You could potentially save up to 5% on your flight if you consider stops on a Oslo Gardermoen Airport to State of Washington flight.

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

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

Best Price Found	$429
Fastest flight time	12h 50m
Direct flights	None

The best one-way flight to State of Washington from Oslo Gardermoen Airport in the past 72 hours is $429. The best round-trip flight deal from Oslo Gardermoen Airport to State of Washington found on momondo in the last 72 hours is $533.

The fastest flight from Oslo Gardermoen Airport to State of Washington takes 12h 50m

There are no direct flights from Oslo Gardermoen Airport to State of Washington. There are no popular flight routes from Oslo Gardermoen Airport to State of Washington.

Search flight deals

Frequently asked questions about flying from Oslo Gardermoen Airport to Washington

When did momondo last update prices for flights from Oslo Gardermoen Airport to Washington?
Prices for flights from Oslo Gardermoen Airport to Washington were last updated today.
How many operators does momondo search for flights from Oslo Gardermoen Airport to Washington?
As of October 2026, there are 2 operators available to choose from for flights from Oslo Gardermoen Airport to Washington.
How old do you have to be to fly from Oslo Gardermoen Airport to Washington?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oslo Gardermoen Airport to Washington.
What documentation or ID do you need to fly to Washington?
The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Oslo Gardermoen Airport to State of Washington

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

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom $443	Free Cancellation	Rating 6.9 756 reviews		Search Icelandair flights
Scandinavian Airlines	PriceFrom $588	Free Cancellation	Rating 7.4 2,005 reviews		Search Scandinavian Airlines flights

Why use momondo?

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

It is quick and easy to find Oslo to Washington 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 Washington that suits you.

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

Yes. All flights to Washington from Oslo on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Oslo and Washington by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Washington from Oslo. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.