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$276+ 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — SEA
okt. 16 — okt. 231
do 10/16
do 10/23
1 adult, Economy
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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 september 16, 2025.

Round-trip from

$404
(Ticket)

One-way from

$276
(Finnair)

Popular in

July

Cheapest in

November

Average price

$547
From Oslo Gardermoen to Washington
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One-way flight from Oslo Gardermoen to Washington
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Highest demand for flights based on searches. 14% potential increase in price ($95 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 september 16, 2025.

This Ticket deal was found by Cheapflights users on 9/14. 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.
ma 10/64:45 pmOSL - SEA
1 stop12h 55mIcelandair
zo 10/197:00 pmSEA - OSL
1 stop32h 35mIcelandair
Deal found 9/14$404
This Ticket deal was found by Cheapflights users on 9/15. 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.
wo 9/244:30 pmOSL - SEA
1 stop13h 10mIcelandair
za 9/273:45 pmSEA - OSL
1 stop11h 50mIcelandair
Deal found 9/15$418
This Ticket deal was found by Cheapflights users on 9/15. 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.
ma 10/66:45 amOSL - SEA
2 stops21h 04mMultiple Airlines
zo 10/196:50 pmSEA - OSL
1 stop14h 15mMultiple Airlines
Deal found 9/15$446
This Ticket deal was found by Cheapflights users on 9/15. 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.
za 10/46:35 amOSL - SEA
1 stop14h 20mLufthansa
wo 10/152:20 pmSEA - OSL
1 stop12h 55mLufthansa
Deal found 9/15$448
This Ticket deal was found by Cheapflights users on 9/14. 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.
za 11/87:10 amOSL - PDX
2 stops21h 04mBritish Airways
zo 11/2312:00 pmPDX - OSL
2 stops25h 40mBritish Airways
Deal found 9/14$449
This Travelis deal was found by Cheapflights users on 9/16. 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.
vr 12/267:10 amOSL - SEA
1 stop18h 45mBritish Airways
za 1/106:50 pmSEA - OSL
1 stop19h 10mBritish Airways
Deal found 9/16$451
This Ticket deal was found by Cheapflights users on 9/15. 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.
wo 9/246:05 amOSL - SEA
1 stop20h 35mMultiple Airlines
do 10/25:40 pmSEA - OSL
1 stop13h 40mMultiple Airlines
Deal found 9/15$454
This Ticket deal was found by Cheapflights users on 9/15. 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.
zo 10/263:05 pmOSL - SEA
2 stops36h 24mBritish Airways
za 11/81:35 pmSEA - OSL
1 stop24h 25mBritish Airways
Deal found 9/15$459
This Ticket deal was found by Cheapflights users on 9/14. 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.
ma 10/68:00 amOSL - SEA
2 stops20h 29mBritish Airways
zo 10/1910:39 amSEA - OSL
2 stops28h 01mBritish Airways
Deal found 9/14$460
This Icelandair deal was found by Cheapflights users on 9/15. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 10/64:45 pmOSL - SEA
1 stop12h 55mIcelandair
za 10/113:45 pmSEA - OSL
1 stop11h 50mIcelandair
Deal found 9/15$461
This deal was found by Cheapflights users on 9/13. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
za 11/221:10 pmOSL - SEA
1 stop12h 50mIcelandair
za 12/62:35 pmSEA - OSL
1 stop12h 00mIcelandair
Deal found 9/13$462
This Finnair deal was found by Cheapflights users on 9/15. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vr 11/78:15 amOSL - PDX
2 stops19h 59mFinnair
vr 11/145:45 pmPDX - OSL
2 stops29h 15mFinnair
Deal found 9/15$463

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 september 16, 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

ma 10/6

5:05 pm-11:10 am

1 stop27h 05m

Seattle/Tacoma Intl

zo 10/19

1:35 pm-11:40 pm

2 stops25h 05m

$449

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

vr 12/26

7:10 am-4:55 pm

1 stop18h 45m

Seattle/Tacoma Intl

za 1/10

6:50 pm-11:00 pm

1 stop19h 10m

$451

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

vr 11/7

8:15 am-7:14 pm

2 stops19h 59m

Portland

vr 11/14

5:45 pm-8:00 am

2 stops29h 15m

$463

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

do 2/26

3:05 pm-3:55 pm

1 stop33h 50m

Portland

ma 3/2

7:58 am-6:40 pm

2 stops25h 42m

$469

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

do 2/26

7:05 am-10:46 pm

2 stops24h 41m

Portland

ma 3/2

2:10 pm-6:40 pm

2 stops19h 30m

$471

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

vr 12/26

7:10 am-4:55 pm

1 stop18h 45m

Seattle/Tacoma Intl

zo 1/11

6:50 pm-10:40 pm

1 stop18h 50m

$473

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

vr 12/26

7:10 am-4:55 pm

1 stop18h 45m

Seattle/Tacoma Intl

vr 1/9

6:50 pm-10:10 pm

1 stop18h 20m

$473

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

wo 10/1

11:50 am-11:50 am

1 stop33h 00m

Seattle/Tacoma Intl

ma 10/13

10:05 pm-1:45 pm

2 stops30h 40m

$474

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

vr 10/3

6:30 am-11:50 am

1 stop14h 20m

Seattle/Tacoma Intl

za 10/18

5:40 pm-8:45 am

1 stop30h 05m

$480

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

vr 11/7

6:25 am-7:14 pm

2 stops21h 49m

Portland

vr 11/14

5:45 pm-10:10 pm

1 stop19h 25m

$486

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 26 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, January is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to State of Washington (average of $238). Flying from Oslo Gardermoen Airport to State of Washington in June is currently the most expensive (average of $387). 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 september 16, 2025.

When flying from Oslo Gardermoen Airport to State of Washington, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 september 16, 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
8.0
Very good
7,954 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Delta
8.0
Very good
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Scandinavian Airlines
7.4
Good
1,484 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Icelandair
7.0
Good
544 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Lufthansa
6.8
Okay
7,407 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
British Airways
6.7
Okay
7,361 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

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 19h 59m. British Airways provides one of the quickest options available for as low as $463. Airlines will cover a distance of 4674 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Oslo Gardermoen Airport to State of Washington one-way?

    The cheapest airlines for a one-way flight from Oslo Gardermoen Airport to State of Washington are Finnair ($290), British Airways ($305), and Delta ($921).

  • 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, January is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to State of Washington (average of $238). Flying from Oslo Gardermoen Airport to State of Washington in June is currently the most expensive (average of $387). 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 Orlando flights
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Top 6 airlines flying from Oslo Gardermoen to Washington

Discover the top 6 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 september 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$399Average$538FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$416Average$490FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$419Average$600FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$423Average$558FlexibilityNo cancel feeOn-time76%
DeltaCheapest$452Average$525FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$603Average$703FlexibilityNo cancel feeOn-time77%

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