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$417+ 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — SEA
ago. 25 — sep. 11
lun. 8/25
lun. 9/1
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 agosto 20, 2025.

Round-trip from

$443
(Flightnetwork)

One-way from

$417
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$622
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 ($96 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in August 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 agosto 20, 2025.

This Flightnetwork deal was found by Cheapflights users on 8/18. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/86:35 amOSL - SEA
2 stops21h 56mAir Canada
mié. 9/247:15 amSEA - OSL
2 stops23h 25mAir Canada
Deal found 8/18$443
This Travelis deal was found by Cheapflights users on 8/18. 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.
lun. 9/86:35 amOSL - SEA
1 stop14h 20mLufthansa
mié. 9/246:50 pmSEA - OSL
1 stop18h 20mLufthansa
Deal found 8/18$446
This Travelis deal was found by Cheapflights users on 8/19. 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.
jue. 10/28:35 amOSL - SEA
2 stops22h 23mMultiple Airlines
mié. 10/151:30 pmSEA - OSL
1 stop20h 45mMultiple Airlines
Deal found 8/19$449
This Delta deal was found by Cheapflights users on 8/18. 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.
vie. 10/1011:50 amOSL - SEA
1 stop13h 15mDelta
vie. 10/241:30 pmSEA - OSL
2 stops20h 20mDelta
Deal found 8/18$456
This Ticket deal was found by Cheapflights users on 8/19. 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.
jue. 10/27:45 amOSL - PDX
1 stop18h 50mBritish Airways
mié. 10/157:25 pmPDX - OSL
1 stop19h 05mBritish Airways
Deal found 8/19$458
This Finnair deal was found by Cheapflights users on 8/19. 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.
vie. 10/38:35 amOSL - SEA
2 stops19h 34mMultiple Airlines
vie. 10/101:30 pmSEA - OSL
1 stop24h 00mMultiple Airlines
Deal found 8/19$458
This Flysmarter deal was found by Cheapflights users on 8/20. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/18:00 amOSL - SEA
2 stops20h 15mBritish Airways
mié. 9/243:40 pmSEA - OSL
2 stops22h 50mBritish Airways
Deal found 8/20$464
This American Airlines deal was found by Cheapflights users on 8/19. 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.
jue. 10/27:45 amOSL - SEA
2 stops21h 24mAmerican Airlines
mié. 10/158:20 pmSEA - OSL
1 stop18h 10mAmerican Airlines
Deal found 8/19$467
This Finnair deal was found by Cheapflights users on 8/18. 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.
vie. 11/78:25 amOSL - PDX
2 stops19h 49mMultiple Airlines
vie. 11/145:45 pmPDX - OSL
1 stop14h 45mMultiple Airlines
Deal found 8/18$468
This Ticket deal was found by Cheapflights users on 8/19. 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.
dom. 9/79:20 amOSL - PDX
1 stop35h 00mKLM
dom. 9/213:35 pmPDX - OSL
2 stops15h 45mKLM
Deal found 8/19$470
This United Airlines deal was found by Cheapflights users on 8/18. 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.
lun. 9/86:35 amOSL - SEA
2 stops21h 01mUnited Airlines
dom. 9/1411:54 pmSEA - OSL
2 stops32h 21mUnited Airlines
Deal found 8/18$471
This American Airlines deal was found by Cheapflights users on 8/18. 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.
vie. 11/77:10 amOSL - PDX
1 stop17h 45mAmerican Airlines
vie. 11/145:45 pmPDX - OSL
1 stop19h 25mAmerican Airlines
Deal found 8/18$473

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 agosto 20, 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

lun. 9/8

6:35 am-7:31 pm

2 stops21h 56m

Seattle/Tacoma Intl

mié. 9/24

7:15 am-3:40 pm

2 stops23h 25m

$443

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

lun. 9/8

6:35 am-11:55 am

1 stop14h 20m

Seattle/Tacoma Intl

mié. 9/24

6:50 pm-10:10 pm

1 stop18h 20m

$446

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

vie. 10/3

8:35 am-7:09 pm

2 stops19h 34m

Seattle/Tacoma Intl

vie. 10/10

1:30 pm-10:30 pm

1 stop24h 00m

$446

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

jue. 10/2

8:35 am-9:58 pm

2 stops22h 23m

Seattle/Tacoma Intl

mié. 10/15

1:30 pm-7:15 pm

1 stop20h 45m

$449

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

vie. 10/10

11:50 am-4:05 pm

1 stop13h 15m

Seattle/Tacoma Intl

vie. 10/24

1:30 pm-6:50 pm

2 stops20h 20m

$456

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

jue. 10/2

7:45 am-5:35 pm

1 stop18h 50m

Portland

mié. 10/15

7:25 pm-11:30 pm

1 stop19h 05m

$458

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

lun. 9/1

8:00 am-7:15 pm

2 stops20h 15m

Seattle/Tacoma Intl

mié. 9/24

3:40 pm-11:30 pm

2 stops22h 50m

$464

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

jue. 10/2

7:45 am-8:09 pm

2 stops21h 24m

Seattle/Tacoma Intl

mié. 10/15

8:20 pm-11:30 pm

1 stop18h 10m

$467

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

jue. 10/2

6:45 am-7:31 pm

2 stops21h 46m

Seattle/Tacoma Intl

mié. 10/15

7:30 am-2:10 pm

2 stops21h 40m

$467

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

vie. 10/10

7:50 am-9:46 pm

2 stops22h 56m

Seattle/Tacoma Intl

vie. 10/24

7:40 am-10:30 pm

2 stops29h 50m

$467

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 29 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 $388). 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 agosto 20, 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.

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 agosto 20, 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
7,982 reviews

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

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
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

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
1,470 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

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
528 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

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
7,337 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

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
7,289 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

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 14h 20m. Air Canada provides one of the quickest options available for as low as $446. 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, 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 $388). 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.

See more FAQs

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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

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 agosto 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$399Average$501FlexibilityNo 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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