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$408+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — SEA
May 5 — May 121
Mon 5/5
Mon 5/12
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 April 30, 2025.

Round-trip from

$466
(United Airlines)

One-way from

$408
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$494
From Oslo Gardermoen to Washington
Search Deals
One-way flight from Oslo Gardermoen to Washington
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($136 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 30, 2025.

This Expedia deal was found by Cheapflights users on 4/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/87:45 amOSL - PDX
2 stops24h 14mBritish Airways
Thu 5/227:25 pmPDX - OSL
1 stop19h 30mBritish Airways
Deal found 4/29$460
This United Airlines deal was found by Cheapflights users on 4/29. 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 5/306:35 amOSL - SEA
2 stops22h 02mUnited Airlines
Fri 1/23:10 pmSEA - OSL
1 stop23h 20mUnited Airlines
Deal found 4/29$466
This Lufthansa deal was found by Cheapflights users on 4/29. 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.
Fri 5/3011:35 amOSL - SEA
1 stop14h 24mLufthansa
Fri 1/23:10 pmSEA - OSL
1 stop17h 45mLufthansa
Deal found 4/29$477
This Booking.com deal was found by Cheapflights users on 4/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/315:40 amOSL - SEA
2 stops24h 31mMultiple Airlines
Thu 1/12:00 pmSEA - OSL
1 stop15h 55mMultiple Airlines
Deal found 4/29$488
This Travelis deal was found by Cheapflights users on 4/29. 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 8/287:15 pmOSL - PDX
1 stop24h 50mKLM
Mon 9/11:15 pmPDX - OSL
1 stop18h 05mKLM
Deal found 4/29$514
This Delta deal was found by Cheapflights users on 4/29. 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.
Fri 11/76:30 amOSL - PDX
1 stop13h 55mDelta
Fri 11/141:45 pmPDX - OSL
2 stops20h 05mDelta
Deal found 4/29$520
This Justfly.com deal was found by Cheapflights users on 4/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/206:45 amOSL - SEA
2 stops21h 07mBrussels Airlines
Wed 7/211:02 amSEA - OSL
2 stops26h 48mBrussels Airlines
Deal found 4/29$551
This United Airlines deal was found by Cheapflights users on 4/29. 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 11/76:40 amOSL - PDX
3 stops25h 34mUnited Airlines
Fri 11/145:45 amPDX - OSL
2 stops32h 45mUnited Airlines
Deal found 4/29$555
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/107:45 amOSL - SEA
1 stop19h 35mBritish Airways
Thu 7/241:30 pmSEA - OSL
2 stops21h 15mBritish Airways
Deal found 4/28$578
This Ticket deal was found by Cheapflights users on 4/29. 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 5/87:45 amOSL - PDX
2 stops24h 14mMultiple Airlines
Thu 5/227:25 pmPDX - OSL
2 stops27h 30mMultiple Airlines
Deal found 4/29$583
This Ticket deal was found by Cheapflights users on 4/29. 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.
Mon 5/54:20 pmOSL - SEA
1 stop13h 20mIcelandair
Sun 5/183:45 pmSEA - OSL
1 stop11h 50mIcelandair
Deal found 4/29$614
This Gotogate deal was found by Cheapflights users on 4/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/59:45 amOSL - SEA
2 stops21h 28mAir Canada
Sun 5/185:30 amSEA - OSL
2 stops27h 35mAir Canada
Deal found 4/29$622

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 April 30, 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

Fri 5/30

6:35 am-7:37 pm

2 stops22h 02m

Seattle/Tacoma Intl

Fri 1/2

3:10 pm-11:30 pm

1 stop23h 20m

$466

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 5/30

11:35 am-4:59 pm

1 stop14h 24m

Seattle/Tacoma Intl

Fri 1/2

3:10 pm-5:55 pm

1 stop17h 45m

$477

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sat 5/31

5:40 am-9:11 pm

2 stops24h 31m

Seattle/Tacoma Intl

Thu 1/1

2:00 pm-2:55 pm

1 stop15h 55m

$488

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Thu 8/28

7:15 pm-11:05 am

1 stop24h 50m

Portland

Mon 9/1

1:15 pm-4:20 pm

1 stop18h 05m

$514

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Thu 8/28

9:20 am-9:44 pm

2 stops21h 24m

Portland

Mon 9/1

5:45 pm-8:40 pm

2 stops17h 55m

$522

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Tue 5/20

6:45 am-6:52 pm

2 stops21h 07m

Seattle/Tacoma Intl

Wed 7/2

11:02 am-10:50 pm

2 stops26h 48m

$551

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Mon 6/23

11:35 am-5:35 pm

1 stop15h 00m

Portland

Wed 7/16

7:25 pm-11:30 pm

1 stop19h 05m

$556

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 7/10

7:45 am-6:20 pm

1 stop19h 35m

Seattle/Tacoma Intl

Thu 7/24

1:30 pm-7:45 pm

2 stops21h 15m

$578

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sat 6/14

6:35 am-10:26 pm

2 stops24h 51m

Portland

Tue 7/1

11:59 pm-5:15 pm

2 stops32h 16m

$594

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sat 6/7

8:35 am-7:10 pm

2 stops19h 35m

Seattle/Tacoma Intl

Sat 6/14

5:40 pm-8:05 pm

1 stop17h 25m

$660

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 35 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 July is currently the most expensive (average of $405). 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 April 30, 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 April 30, 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
7,929 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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
1,334 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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
1,275 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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
Scandinavian Airlines
7.3
Good
1,349 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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 Lufthansa ($479), Icelandair ($485), and British Airways ($506).

  • 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 $405). 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 Boston flights
Sandefjord to Las Vegas flights
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Sandefjord to Orlando flights
Oslo Gardermoen to Jacksonville flights

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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$395Average$526FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$416Average$585FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$419Average$671FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$423Average$559FlexibilityNo cancel feeOn-time76%
DeltaCheapest$452Average$534FlexibilityNo cancel feeOn-timeN/A

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