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$441+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — SEA
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$523
(Travelis)

One-way from

$441
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$729
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. 16% potential increase in price ($116 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 July 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 July 3, 2025.

This Travelis deal was found by Cheapflights users on 7/1. 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.
Mon 8/258:35 amOSL - PDX
2 stops23h 51mFinnair
Sun 9/78:30 amPDX - OSL
2 stops26h 15mFinnair
Deal found 7/1$523
This Travelis deal was found by Cheapflights users on 7/3. 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.
Fri 8/295:20 pmOSL - PDX
1 stop27h 00mMultiple Airlines
Sat 9/61:30 pmPDX - OSL
2 stops18h 10mMultiple Airlines
Deal found 7/3$535
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Mon 8/251:10 pmOSL - PDX
2 stops18h 49mAmerican Airlines
Sun 9/77:31 amPDX - OSL
2 stops18h 04mAmerican Airlines
Deal found 7/1$536
This Lufthansa deal was found by Cheapflights users on 7/2. 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 8/206:50 amOSL - SEA
2 stops22h 52mLufthansa
Sun 8/312:20 pmSEA - OSL
1 stop18h 40mLufthansa
Deal found 7/2$537
This United Airlines deal was found by Cheapflights users on 7/2. 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.
Sat 8/166:35 amOSL - SEA
2 stops25h 24mUnited Airlines
Sat 8/237:00 amSEA - OSL
2 stops25h 15mUnited Airlines
Deal found 7/2$541
This SWISS deal was found by Cheapflights users on 7/2. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/225:40 amOSL - SEA
2 stops24h 14mSWISS
Mon 9/110:00 amSEA - OSL
2 stops42h 05mSWISS
Deal found 7/2$542
This United Airlines deal was found by Cheapflights users on 7/1. 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 8/296:35 amOSL - PDX
2 stops25h 02mUnited Airlines
Sat 9/610:55 amPDX - OSL
2 stops26h 15mUnited Airlines
Deal found 7/1$543
This KLM deal was found by Cheapflights users on 7/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/209:20 amOSL - SEA
1 stop15h 35mKLM
Mon 9/15:40 pmSEA - OSL
1 stop13h 40mKLM
Deal found 7/2$543
This Booking.com deal was found by Cheapflights users on 7/1. 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.
Fri 10/1711:35 amOSL - SEA
2 stops19h 41mAir Canada
Sun 10/197:30 amSEA - OSL
2 stops22h 15mAir Canada
Deal found 7/1$545
This Delta deal was found by Cheapflights users on 7/2. 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 8/192:15 pmOSL - SEA
2 stops37h 45mDelta
Mon 9/17:13 amSEA - OSL
2 stops28h 27mDelta
Deal found 7/2$557
This Lufthansa deal was found by Cheapflights users on 7/3. 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 11/79:35 amOSL - PDX
2 stops21h 58mLufthansa
Fri 11/147:00 amPDX - OSL
2 stops23h 40mLufthansa
Deal found 7/3$558
This British Airways deal was found by Cheapflights users on 7/1. 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.
Fri 11/77:15 amOSL - PDX
1 stop18h 20mBritish Airways
Fri 11/146:30 pmPDX - OSL
1 stop18h 45mBritish Airways
Deal found 7/1$561

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 July 3, 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

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Mon 8/25

8:35 am-11:26 pm

2 stops23h 51m

Portland

Sun 9/7

8:30 am-7:45 pm

2 stops26h 15m

$523

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Fri 8/29

5:20 pm-11:20 am

1 stop27h 00m

Portland

Sat 9/6

1:30 pm-4:40 pm

2 stops18h 10m

$535

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Mon 8/25

1:10 pm-10:59 pm

2 stops18h 49m

Portland

Sun 9/7

7:31 am-10:35 am

2 stops18h 04m

$536

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Wed 8/20

6:50 am-8:42 pm

2 stops22h 52m

Seattle/Tacoma Intl

Sun 8/31

2:20 pm-6:00 pm

1 stop18h 40m

$537

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sat 8/16

6:35 am-10:59 pm

2 stops25h 24m

Seattle/Tacoma Intl

Sat 8/23

7:00 am-5:15 pm

2 stops25h 15m

$541

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 8/22

5:40 am-8:54 pm

2 stops24h 14m

Seattle/Tacoma Intl

Mon 9/1

10:00 am-1:05 pm

2 stops42h 05m

$542

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Wed 8/20

9:20 am-3:55 pm

1 stop15h 35m

Seattle/Tacoma Intl

Mon 9/1

5:40 pm-4:20 pm

1 stop13h 40m

$543

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Fri 8/29

6:35 am-10:37 pm

2 stops25h 02m

Portland

Sat 9/6

10:55 am-10:10 pm

2 stops26h 15m

$543

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 10/17

11:35 am-10:16 pm

2 stops19h 41m

Seattle/Tacoma Intl

Sun 10/19

7:30 am-2:45 pm

2 stops22h 15m

$545

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Tue 8/19

2:15 pm-7:00 pm

2 stops37h 45m

Seattle/Tacoma Intl

Mon 9/1

7:13 am-8:40 pm

2 stops28h 27m

$557

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 38 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 $390). 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 July 3, 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 July 3, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and Finnair 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

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,367 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,306 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,654 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 ($460), Icelandair ($465), and SWISS ($525).

  • 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 $390). 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 7 airlines flying from Oslo Gardermoen to Washington

Discover the top 7 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$399Average$493FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$416Average$490FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$419Average$605FlexibilityNo cancel feeOn-time70%
FinnairCheapest$422Average$450FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$423Average$558FlexibilityNo cancel feeOn-time76%
DeltaCheapest$452Average$534FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$603Average$703FlexibilityNo cancel feeOn-time77%

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