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Cheap flights from Oslo Gardermoen Airport to Washington from $277

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Oslo Gardermoen Airport to Washington departing on 12/9. 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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Find the cheapest flights from Oslo Gardermoen Airport to Washington

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
1:10 pm - 5:00 pmOSL-SEA
12h 50m1 stop
Icelandair Logo
2:35 pm - 11:35 amSEA-OSL
12h 00m1 stop
$437Icelandair
Find Deal
Thu, Nov 6 - Thu, Nov 20
British Airways Logo
7:20 am - 4:55 pmOSL-SEA
18h 35m1 stop
British Airways Logo
6:50 pm - 10:40 pmSEA-OSL
18h 50m1 stop
$445British Airways
Find Deal
Mon, Dec 8 - Tue, Dec 23
American Airlines Logo
7:20 am - 12:38 pmOSL-SEA
38h 18m2 stops
American Airlines Logo
6:50 pm - 2:10 pmSEA-OSL
34h 20m1 stop
$483American Airlines
Find Deal
Mon, Dec 8 - Tue, Dec 23
American Airlines Logo
7:20 am - 12:38 pmOSL-SEA
38h 18m2 stops
American Airlines Logo
1:52 pm - 2:10 pmSEA-OSL
39h 18m2 stops
$485American Airlines
Find Deal
Mon, Dec 8 - Tue, Dec 23
Lufthansa Logo
6:30 pm - 12:10 pmOSL-SEA
26h 40m1 stop
Lufthansa Logo
12:35 pm - 5:30 pmSEA-OSL
19h 55m2 stops
$491Lufthansa
Find Deal
Wed, Nov 12 - Wed, Nov 19
British Airways Logo
7:20 am - 6:55 pmOSL-SEA
20h 35m2 stops
British Airways Logo
6:50 pm - 10:40 pmSEA-OSL
18h 50m1 stop
$492British Airways
Find Deal
Mon, Dec 8 - Tue, Dec 23
Icelandair Logo
9:30 pm - 5:00 pmOSL-PDX
28h 30m1 stop
Icelandair Logo
2:45 pm - 11:35 amPDX-OSL
11h 50m1 stop
$496Icelandair
Find Deal
Sun, Nov 9 - Mon, Nov 24
Delta Logo
9:25 am - 10:22 pmOSL-SEA
21h 57m2 stops
Delta Logo
1:40 pm - 4:20 pmSEA-OSL
17h 40m1 stop
$509Delta
Find Deal
Sat, Nov 8 - Sat, Nov 29
Lufthansa Logo
6:25 pm - 2:20 pmOSL-SEA
27h 55m1 stop
Lufthansa Logo
3:40 pm - 10:10 pmSEA-OSL
21h 30m2 stops
$521Lufthansa
Find Deal
Thu, Mar 26 - Mon, Mar 30
Delta Logo
6:30 am - 11:45 amOSL-SEA
14h 15m1 stop
Delta Logo
1:40 pm - 4:20 pmSEA-OSL
17h 40m1 stop
$522Delta
Find Deal
Sat, Nov 8 - Sat, Nov 29

Lufthansa flights from Oslo Gardermoen Airport to State of Washington

Our best Lufthansa deals on Oslo Gardermoen Airport to State of Washington flight tickets
Lufthansa
Nov 12
OSL6:30 pmOslo Gardermoen
26h 40m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
Nov 19
SEA12:35 pmSeattle/Tacoma Intl
19h 55m
2 stops
OSL5:30 pmOslo Gardermoen
$491
Find similar
Lufthansa
Mar 26
OSL6:25 pmOslo Gardermoen
27h 55m
1 stop
SEA2:20 pmSeattle/Tacoma Intl
Mar 30
SEA3:40 pmSeattle/Tacoma Intl
21h 30m
2 stops
OSL10:10 pmOslo Gardermoen
$521
Find similar
Lufthansa
Mar 26
OSL6:25 pmOslo Gardermoen
27h 55m
1 stop
SEA2:20 pmSeattle/Tacoma Intl
Mar 30
SEA10:10 amSeattle/Tacoma Intl
27h 00m
2 stops
OSL10:10 pmOslo Gardermoen
$525
Find similar

United Airlines flights from Oslo Gardermoen Airport to State of Washington

Our best United Airlines deals on Oslo Gardermoen Airport to State of Washington flight tickets
United Airlines
Nov 12
OSL6:05 amOslo Gardermoen
26h 39m
3 stops
SEA11:44 pmSeattle/Tacoma Intl
Nov 19
SEA6:20 amSeattle/Tacoma Intl
19h 40m
2 stops
OSL11:00 amOslo Gardermoen
$510
Find similar
United Airlines
Nov 17
OSL6:15 amOslo Gardermoen
14h 55m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
Jan 4
SEA5:00 amSeattle/Tacoma Intl
27h 30m
2 stops
OSL5:30 pmOslo Gardermoen
$547
Find similar
United Airlines
Nov 17
OSL2:05 pmOslo Gardermoen
28h 45m
2 stops
SEA9:50 amSeattle/Tacoma Intl
Jan 4
SEA5:00 amSeattle/Tacoma Intl
27h 30m
2 stops
OSL5:30 pmOslo Gardermoen
$553
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Oslo Gardermoen Airport to State of Washington 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 October 17, 2025.
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

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 11/6

1:10 pm-5:00 pm

1 stop12h 50m

Seattle/Tacoma Intl

Thu 11/20

2:35 pm-11:35 am

1 stop12h 00m

$437

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 12/8

7:20 am-4:55 pm

1 stop18h 35m

Seattle/Tacoma Intl

Tue 12/23

6:50 pm-10:40 pm

1 stop18h 50m

$445

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 12/8

7:20 am-12:38 pm

2 stops38h 18m

Seattle/Tacoma Intl

Tue 12/23

6:50 pm-2:10 pm

1 stop34h 20m

$483

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 12/8

7:20 am-12:38 pm

2 stops38h 18m

Seattle/Tacoma Intl

Tue 12/23

1:52 pm-2:10 pm

2 stops39h 18m

$485

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Wed 11/12

6:30 pm-12:10 pm

1 stop26h 40m

Seattle/Tacoma Intl

Wed 11/19

12:35 pm-5:30 pm

2 stops19h 55m

$491

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 12/8

7:20 am-6:55 pm

2 stops20h 35m

Seattle/Tacoma Intl

Tue 12/23

6:50 pm-10:40 pm

1 stop18h 50m

$492

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sun 11/9

9:30 pm-5:00 pm

1 stop28h 30m

Portland

Mon 11/24

2:45 pm-11:35 am

1 stop11h 50m

$496

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sat 11/8

9:25 am-10:22 pm

2 stops21h 57m

Seattle/Tacoma Intl

Sat 11/29

1:40 pm-4:20 pm

1 stop17h 40m

$509

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 3/26

6:25 pm-2:20 pm

1 stop27h 55m

Seattle/Tacoma Intl

Mon 3/30

3:40 pm-10:10 pm

2 stops21h 30m

$521

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sat 11/8

6:30 am-11:45 am

1 stop14h 15m

Seattle/Tacoma Intl

Sat 11/29

1:40 pm-4:20 pm

1 stop17h 40m

$522

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 Washington from

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

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

The month of November is, on average, the cheapest month to fly to State of Washington from Oslo Gardermoen Airport, with most prices found around $460. If you aren’t able to travel to State of Washington during the month of November, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $477.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from Oslo Gardermoen Airport to State of Washington is on a Saturday. Travelers who choose to depart for State of Washington on a Saturday will often find tickets for as low as $536. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Oslo Gardermoen Airport to State of Washington for around $769.

What is the cheapest time of day to depart on your flight to State of Washington?

The cheapest time of day to fly to State of Washington is at noon when flights can be purchased for as low as $536. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $662 on average. Flights to State of Washington from Oslo Gardermoen Airport in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to State of 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 $576 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 $480 on momondo.

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

You could potentially save up to 20% 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

Direct flights

None
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.
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  • 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?

  • 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
British AirwaysPriceFrom $362Free CancellationRating
6.7
7,459 reviews
Search British Airways flights
IcelandairPriceFrom $399Free CancellationRating
7.0
556 reviews
Search Icelandair flights
American AirlinesPriceFrom $416Free CancellationRating
7.2
11,036 reviews
Search American Airlines flights
LufthansaPriceFrom $423Free CancellationRating
6.8
7,502 reviews
Search Lufthansa flights
DeltaPriceFrom $452Free CancellationRating
7.9
7,974 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $603Free CancellationRating
7.4
1,533 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.

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