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$403+ Cheap flights from Oslo Gardermoen (OSL) to Washington

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/23. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — SEA
Mar 19 — Mar 261
Wed 3/19
Wed 3/26
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 March 14, 2025.

Round-trip from

$430
(Finnair)

Popular in

July

Cheapest in

March

Average price

$452
From Oslo Gardermoen to Washington
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($144 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

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 March 14, 2025.

This Ticket deal was found by Cheapflights users on 3/13. 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.
Sun 3/237:15 amOSL - PDX
1 stop18h 20mBritish Airways
Sun 4/67:25 pmPDX - OSL
1 stop30h 00mBritish Airways
Deal found 3/13$403
This Ticket deal was found by Cheapflights users on 3/13. 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.
Sun 3/237:15 amOSL - PDX
1 stop18h 20mMultiple Airlines
Sun 4/65:31 amPDX - OSL
2 stops20h 04mMultiple Airlines
Deal found 3/13$427
This Finnair deal was found by Cheapflights users on 3/13. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/21:10 pmOSL - SEA
2 stops18h 59mFinnair
Thu 5/155:40 pmSEA - OSL
1 stop17h 05mFinnair
Deal found 3/13$430
This Mytrip deal was found by Cheapflights users on 3/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/24:20 pmOSL - SEA
1 stop34h 30mIcelandair
Thu 5/157:00 pmSEA - OSL
1 stop11h 25mIcelandair
Deal found 3/13$438
This British Airways deal was found by Cheapflights users on 3/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/25:05 pmOSL - SEA
1 stop27h 30mBritish Airways
Wed 4/96:58 amSEA - OSL
2 stops18h 42mBritish Airways
Deal found 3/13$440
This American Airlines deal was found by Cheapflights users on 3/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/177:40 amOSL - SEA
2 stops24h 24mAmerican Airlines
Sun 10/51:21 amSEA - OSL
2 stops32h 19mAmerican Airlines
Deal found 3/13$443
This Air France deal was found by Cheapflights users on 3/13. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/17:15 pmOSL - SEA
1 stop25h 30mMultiple Airlines
Wed 4/91:30 pmSEA - OSL
1 stop13h 20mMultiple Airlines
Deal found 3/13$447
This Delta deal was found by Cheapflights users on 3/13. 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.
Tue 4/111:50 amOSL - SEA
2 stops18h 41mDelta
Tue 4/811:50 amSEA - OSL
2 stops19h 45mDelta
Deal found 3/13$454
This Lufthansa deal was found by Cheapflights users on 3/13. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/211:35 amOSL - SEA
1 stop14h 24mLufthansa
Sun 4/66:50 pmSEA - OSL
1 stop14h 15mLufthansa
Deal found 3/13$474
This United Airlines deal was found by Cheapflights users on 3/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/46:35 amOSL - SEA
1 stop14h 50mUnited Airlines
Sun 4/66:50 pmSEA - OSL
1 stop18h 20mUnited Airlines
Deal found 3/13$475
This Air France deal was found by Cheapflights users on 3/13. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:00 amOSL - SEA
1 stop20h 40mAir France
Sun 10/56:35 pmSEA - OSL
1 stop19h 45mAir France
Deal found 3/13$513
This Mytrip deal was found by Cheapflights users on 3/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/26:35 amOSL - SEA
2 stops22h 02mAir Canada
Thu 5/152:55 pmSEA - OSL
2 stops18h 10mAir Canada
Deal found 3/13$672

Find flights from Oslo Gardermoen to Washington within your budget

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 March 14, 2025.

Fly from

Oslo Gardermoen

Fly to

Washington

Route

Depart

Return

Price

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 5/2

1:10 pm-11:09 pm

2 stops18h 59m

Seattle/Tacoma Intl

Thu 5/15

5:40 pm-7:45 pm

1 stop17h 05m

$430

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 5/2

4:20 pm-5:50 pm

1 stop34h 30m

Seattle/Tacoma Intl

Thu 5/15

7:00 pm-3:25 pm

1 stop11h 25m

$438

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Wed 4/2

5:05 pm-11:35 am

1 stop27h 30m

Seattle/Tacoma Intl

Wed 4/9

6:58 am-10:40 am

2 stops18h 42m

$440

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Tue 4/1

7:15 pm-11:45 am

1 stop25h 30m

Seattle/Tacoma Intl

Wed 4/9

1:30 pm-11:50 am

1 stop13h 20m

$447

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Tue 4/1

11:15 am-11:35 am

1 stop33h 20m

Seattle/Tacoma Intl

Wed 4/9

2:58 pm-11:30 pm

2 stops23h 32m

$449

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Wed 4/2

11:50 am-9:31 pm

2 stops18h 41m

Seattle/Tacoma Intl

Wed 4/9

9:25 am-11:50 am

2 stops17h 25m

$453

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sun 4/27

7:45 am-5:35 pm

1 stop18h 50m

Portland

Sun 5/4

11:59 pm-11:30 pm

2 stops38h 31m

$457

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Wed 4/2

11:35 am-4:59 pm

1 stop14h 24m

Seattle/Tacoma Intl

Sun 4/6

6:50 pm-6:05 pm

1 stop14h 15m

$474

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 4/4

6:35 am-12:25 pm

1 stop14h 50m

Seattle/Tacoma Intl

Sun 4/6

6:50 pm-10:10 pm

1 stop18h 20m

$475

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 5/2

6:35 am-7:37 pm

2 stops22h 02m

Seattle/Tacoma Intl

Thu 5/15

2:55 pm-6:05 pm

2 stops18h 10m

$672

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/13

Showing 1-10 of 37 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.

Travel insights for flights from Oslo Gardermoen to Washington

Get recent, data-driven insights about flights from Oslo Gardermoen to Washington including ideal travel times, pricing trends, and more.

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 July is currently the most expensive (average of $411). 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 March 14, 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.

Rainfall in Washington by month

Plan your trip to Washington by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

Plan your trip to Washington by taking into account the average temperature totals by month.

If weather is an important factor for your trip to State of Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 March 14, 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from Oslo to Washington. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,944 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
7,944 reviews
Delta
8.0
Very good
7,944 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,320 reviews
Delta
8.0
Very good
7,944 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,268 reviews
Delta
8.0
Very good
7,944 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS
7.5
Good
1,564 reviews
Delta
8.0
Very good
7,944 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Cathay Pacific
7.5
Good
830 reviews
Delta
8.0
Very good
7,944 reviews

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • 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 ($451), British Airways ($452), and Icelandair ($505).

  • 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 July is currently the most expensive (average of $411). 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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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 March 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$395Average$557FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$416Average$682FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$419Average$672FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$434Average$563FlexibilityNo cancel feeOn-time76%
DeltaCheapest$452Average$548FlexibilityNo cancel feeOn-timeN/A
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