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$294+ Cheap flights from Oslo Gardermoen (OSL) to Washington

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — SEA
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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Find flight deals from Oslo Gardermoen to Washington

Cheapest flights from Oslo Gardermoen to Washington
Explore the most affordable flight options available from Oslo Gardermoen to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

This Ticket deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/207:00 pmOSL - SEA
1 stop25h 45mKLM
Thu 12/43:05 pmSEA - OSL
1 stop18h 10mKLM
Deal found 11/13$469
This Ticket deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/207:00 pmOSL - SEA
1 stop25h 45mKLM
Wed 12/33:05 pmSEA - OSL
1 stop18h 10mKLM
Deal found 11/13$470
This Travelis deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/206:30 amOSL - SEA
1 stop14h 15mMultiple Airlines
Wed 12/32:05 pmSEA - OSL
1 stop24h 30mMultiple Airlines
Deal found 11/12$495
This Delta deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/209:25 amOSL - SEA
2 stops22h 00mDelta
Wed 12/32:05 pmSEA - OSL
1 stop17h 15mDelta
Deal found 11/11$508
This Delta deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/206:30 amOSL - SEA
2 stops21h 10mDelta
Thu 12/41:40 pmSEA - OSL
1 stop17h 40mDelta
Deal found 11/13$510
This Ticket deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/231:05 pmOSL - PDX
1 stop12h 55mIcelandair
Mon 12/82:45 pmPDX - OSL
1 stop11h 50mIcelandair
Deal found 11/12$521
This Ticket deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2312:40 pmOSL - PDX
1 stop31h 45mKLM
Mon 12/87:05 amPDX - OSL
2 stops16h 35mKLM
Deal found 11/12$632
This Travelis deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/239:35 amOSL - PDX
2 stops20h 51mLufthansa
Mon 12/81:14 pmPDX - OSL
2 stops19h 26mLufthansa
Deal found 11/12$635
This American Airlines deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2311:30 amOSL - PDX
2 stops34h 27mAmerican Airlines
Mon 12/85:45 pmPDX - OSL
1 stop35h 25mAmerican Airlines
Deal found 11/12$636
This United Airlines deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/236:05 amOSL - PDX
2 stops23h 33mUnited Airlines
Mon 12/85:00 amPDX - OSL
2 stops27h 40mUnited Airlines
Deal found 11/11$649
This Ticket deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/216:30 amOSL - PDX
1 stop13h 55mKLM
Fri 11/287:05 amPDX - OSL
2 stops16h 35mKLM
Deal found 11/13$661

Cheap flight deals from Oslo Gardermoen to Washington

Keep the following information in mind while searching for Oslo Gardermoen to Washington flight deals. Data was last updated November 13, 2025.

Round-trip from

$425
(Ticket)

One-way from

$294
(Finnair)

Popular in

July

Cheapest in

May

Average price

$493
From Oslo Gardermoen to Washington
Search Deals
One-way flight from Oslo Gardermoen to Washington
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Oslo Gardermoen to 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, Cheapflights users made 2,558,603 searches. Data last updated November 13, 2025.
Use the filters below to find and compare flights from Oslo Gardermoen Airport to Washington that are best for you.

Fly from

Oslo Gardermoen

Fly to

Washington

Route

Depart

Return

Price

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sun 3/29

7:15 pm-11:35 am

1 stop25h 20m

Seattle/Tacoma Intl

Tue 4/7

5:35 pm-4:20 pm

1 stop13h 45m

$425

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 3/30

1:50 pm-8:45 pm

1 stop15h 55m

Seattle/Tacoma Intl

Tue 4/7

7:00 pm-12:35 pm

1 stop32h 35m

$438

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 4/27

6:30 am-2:45 pm

2 stops17h 15m

Seattle/Tacoma Intl

Wed 5/6

3:35 pm-6:45 pm

2 stops18h 10m

$460

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sat 3/28

5:00 pm-3:50 pm

1 stop30h 50m

Seattle/Tacoma Intl

Tue 4/7

5:35 pm-4:20 pm

1 stop13h 45m

$495

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 4/27

1:50 pm-8:45 pm

1 stop15h 55m

Seattle/Tacoma Intl

Thu 5/7

3:45 pm-12:35 pm

1 stop11h 50m

$503

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 3/30

6:35 am-12:20 pm

1 stop14h 45m

Seattle/Tacoma Intl

Tue 4/7

2:16 pm-6:00 pm

2 stops18h 44m

$507

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 3/2

6:15 am-12:10 pm

1 stop14h 55m

Seattle/Tacoma Intl

Sat 3/21

11:59 pm-3:20 pm

2 stops31h 21m

$507

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 4/27

9:55 am-7:18 pm

2 stops18h 23m

Seattle/Tacoma Intl

Thu 5/7

2:55 pm-6:00 pm

2 stops18h 05m

$507

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sun 3/29

6:55 pm-12:20 pm

1 stop26h 25m

Seattle/Tacoma Intl

Tue 4/7

2:16 pm-6:00 pm

2 stops18h 44m

$511

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sun 3/29

11:45 am-11:36 pm

2 stops20h 51m

Seattle/Tacoma Intl

Tue 4/7

5:00 am-10:10 pm

2 stops32h 10m

$526

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/13

Showing 1-10 of 32 results
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Best time to book a flight from Oslo Gardermoen to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Oslo Gardermoen with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Oslo Gardermoen Airport to Washington

What is the cheapest month to book a flight from Oslo Gardermoen Airport to State of Washington?

Currently, November is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to State of Washington (average of $356). Flying from Oslo Gardermoen Airport to State of Washington in July is currently the most expensive (average of $492). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from OSL to WA?

Find hourly flight availability from Oslo Gardermoen to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 13, 2025.

A simple way to save on the total cost of your ticket is to fly from Oslo Gardermoen Airport to State of Washington in the evening. If you’re flexible enough to do this you can expect to save up to 40% on your trip compared to booking a flight at noon.

How much does it cost to fly round-trip from Oslo Gardermoen Airport to State of Washington?

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated November 13, 2025.
Peruse reviews from past customers who have flown with Delta, Scandinavian Airlines, and Icelandair from Oslo Gardermoen Airport to Washington to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,007 reviews

Crew

8.5

Overall

7.9

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,007 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Overall

7.9

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Scandinavian Airlines
7.4
Good
1,575 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Overall

7.9

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Icelandair
7.1
Good
578 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Overall

7.9

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Lufthansa
6.8
Okay
7,570 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Overall

7.9

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,516 reviews
Delta
7.9
Good
8,007 reviews

Crew

8.5

Overall

7.9

Entertainment

7.9

Boarding

8.1

Comfort

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Oslo Gardermoen to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Oslo Gardermoen Airport to State of Washington?

    A quick flight from Oslo Gardermoen Airport to State of Washington can take about 15h 55m. KLM provides one of the quickest options available for as low as $438. Airlines will cover a distance of 4551 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Oslo Gardermoen to Washington that include hotel bookings?

    Yes. In addition to deals on Oslo Gardermoen to Washington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Oslo Gardermoen to Washington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oslo Gardermoen to Washington.

  • Can I find deals for business class flights from Oslo Gardermoen to Washington?

    Yes. Cheapflights offers flight deals from Oslo Gardermoen to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Oslo Gardermoen Airport to State of Washington?

    Currently, November is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to State of Washington (average of $356). Flying from Oslo Gardermoen Airport to State of Washington in July is currently the most expensive (average of $492). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Oslo Gardermoen to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Sandefjord to Seattle flights
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Top 5 airlines flying from Oslo Gardermoen to Washington

Discover the top 5 airlines that operate flights from Oslo Gardermoen to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$362Average$600FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$399Average$607FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$423Average$532FlexibilityNo cancel feeOn-time76%
DeltaCheapest$452Average$525FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$603Average$703FlexibilityNo cancel feeOn-time77%

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