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Oslo Gardermoen

$374+ Cheap flights from Washington to Oslo Gardermoen (OSL)

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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OSL
Feb 28 — Mar 71
Fri 2/28
Fri 3/7
1 adult, Economy
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Cheap flight deals from Washington to Oslo Gardermoen

Keep the following information in mind while searching for Washington to Oslo Gardermoen flight deals. Data was last updated February 23, 2025.

Round-trip from

$497
(Flighttix)

One-way from

$374
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$702
From Washington to Oslo Gardermoen
Search Deals
One-way flight from Washington to Oslo Gardermoen
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($267 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Washington to Oslo Gardermoen

Cheapest flights from Washington to Oslo Gardermoen
Explore the most affordable flight options available from Washington to Oslo Gardermoen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 23, 2025.

This oojo deal was found by Cheapflights users on 2/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/283:35 pmSEA - OSL
1 stop12h 00mIcelandair
Fri 11/71:05 pmOSL - SEA
1 stop12h 55mIcelandair
Deal found 2/21$482
This Ticket deal was found by Cheapflights users on 2/22. 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.
Wed 3/121:35 pmSEA - OSL
1 stop23h 15mMultiple Airlines
Tue 3/186:55 pmOSL - SEA
1 stop25h 45mMultiple Airlines
Deal found 2/22$517
This oojo deal was found by Cheapflights users on 2/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/252:35 pmSEA - OSL
1 stop19h 35mBritish Airways
Tue 4/111:15 amOSL - SEA
1 stop16h 05mBritish Airways
Deal found 2/22$527
This Finnair deal was found by Cheapflights users on 2/21. 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.
Tue 10/282:35 pmSEA - OSL
2 stops18h 00mFinnair
Fri 11/78:45 amOSL - SEA
2 stops19h 13mFinnair
Deal found 2/21$531
This Delta deal was found by Cheapflights users on 2/22. 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.
Mon 3/101:35 pmSEA - OSL
1 stop18h 50mDelta
Thu 3/206:30 amOSL - SEA
1 stop14h 10mDelta
Deal found 2/22$538
This American Airlines deal was found by Cheapflights users on 2/22. 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 3/121:25 pmSEA - OSL
2 stops16h 50mAmerican Airlines
Tue 3/187:15 amOSL - SEA
2 stops23h 21mAmerican Airlines
Deal found 2/22$541
This Air France deal was found by Cheapflights users on 2/22. 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.
Wed 3/121:35 pmSEA - OSL
1 stop17h 00mAir France
Tue 3/186:20 amOSL - SEA
2 stops18h 37mAir France
Deal found 2/22$547
This United Airlines deal was found by Cheapflights users on 2/22. 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.
Tue 10/287:03 amSEA - OSL
3 stops32h 27mUnited Airlines
Fri 11/76:00 amOSL - SEA
2 stops37h 40mUnited Airlines
Deal found 2/22$567
This Lufthansa deal was found by Cheapflights users on 2/22. 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 3/123:00 pmSEA - OSL
1 stop15h 35mLufthansa
Mon 3/176:45 pmOSL - SEA
1 stop27h 35mLufthansa
Deal found 2/22$582
This Finnair deal was found by Cheapflights users on 2/22. 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.
Wed 8/276:10 amGEG - OSL
2 stops21h 15mMultiple Airlines
Wed 9/38:35 amOSL - GEG
2 stops20h 58mMultiple Airlines
Deal found 2/22$589
This oojo deal was found by Cheapflights users on 2/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/77:25 pmPDX - OSL
1 stop19h 05mBritish Airways
Wed 4/2311:35 amOSL - PDX
1 stop15h 00mBritish Airways
Deal found 2/21$597
This Delta deal was found by Cheapflights users on 2/21. 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.
Mon 4/712:34 pmPDX - OSL
2 stops19h 06mDelta
Wed 4/236:30 amOSL - PDX
1 stop13h 50mDelta
Deal found 2/21$600

Find flights from Washington to Oslo Gardermoen within your budget

Customize your flight search to find flights from Washington to Oslo Gardermoen 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 February 23, 2025.

Fly from

Washington

Fly to

Oslo Gardermoen

Route

Depart

Return

Price

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Thu 4/24

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Mon 4/28

1:50 pm-5:50 pm

1 stop13h 00m

$497

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 3/12

1:35 pm-8:50 pm

1 stop23h 15m

Oslo Gardermoen

Tue 3/18

6:55 pm-12:40 pm

1 stop25h 45m

$517

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 3/25

2:35 pm-6:10 pm

1 stop19h 35m

Oslo Gardermoen

Mon 3/31

5:05 pm-11:10 am

1 stop27h 05m

$526

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 3/10

1:35 pm-4:25 pm

1 stop18h 50m

Oslo Gardermoen

Thu 3/20

6:30 am-12:40 pm

1 stop14h 10m

$538

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 3/12

1:25 pm-2:15 pm

2 stops16h 50m

Oslo Gardermoen

Tue 3/18

7:15 am-10:36 pm

2 stops23h 21m

$541

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 3/12

1:35 pm-2:35 pm

1 stop17h 00m

Oslo Gardermoen

Tue 3/18

6:20 am-4:57 pm

2 stops18h 37m

$547

PortlandOslo

PDX - OSL

PDXOSL

Portland

Mon 4/7

7:25 pm-10:35 am

1 stop30h 10m

Oslo Gardermoen

Wed 4/23

7:40 am-5:35 pm

1 stop18h 55m

$563

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 3/18

4:10 pm-11:30 pm

1 stop23h 20m

Oslo Gardermoen

Wed 4/2

7:15 am-4:59 pm

1 stop18h 44m

$572

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 3/12

3:00 pm-2:35 pm

1 stop15h 35m

Oslo Gardermoen

Mon 3/17

6:45 pm-2:20 pm

1 stop27h 35m

$582

PortlandOslo

PDX - OSL

PDXOSL

Portland

Mon 4/7

7:35 am-12:25 pm

2 stops19h 50m

Oslo Gardermoen

Wed 4/23

8:35 am-6:50 pm

2 stops19h 15m

$590

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 33 results
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Best time to book a flight from Washington to Oslo Gardermoen

Have a flexible travel schedule? Discover the best time to fly to Oslo Gardermoen from Washington 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 Washington to Oslo Gardermoen

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

What is the cheapest month to book a flight from State of Washington to Oslo Gardermoen Airport?

Currently, November is the cheapest month in which you can book a flight from State of Washington to Oslo Gardermoen Airport (average of $567). Flying from State of Washington to Oslo Gardermoen Airport in June is currently the most expensive (average of $1,134). 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 WA to OSL?

Find hourly flight availability from Washington to Oslo Gardermoen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 23, 2025.

When flying from State of Washington to Oslo Gardermoen Airport, 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 Oslo Gardermoen by month

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

In terms of precipitation, rainfall in Oslo Gardermoen Airport ranges from 1.6 - 3.5 inches per month. August is typically the wettest month, when rainfall can reach 3.5 in. February is typically the driest time to visit Oslo Gardermoen Airport when rainfall is around 1.6 in.

Temperature in Oslo Gardermoen by month

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

If weather is an important factor for your trip to Oslo Gardermoen Airport, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

Reviews of airlines servicing Oslo Gardermoen

Get insights into the airlines that provide service to Oslo Gardermoen. 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 Oslo Gardermoen. Reviews last updated February 23, 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from Washington to Oslo. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,203 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,203 reviews
Delta
8.0
Very good
8,203 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,332 reviews
Delta
8.0
Very good
8,203 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,271 reviews
Delta
8.0
Very good
8,203 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,447 reviews
Delta
8.0
Very good
8,203 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,754 reviews
Delta
8.0
Very good
8,203 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Washington to Oslo Gardermoen. 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 State of Washington to Oslo Gardermoen Airport one-way?

    One-way options have recently been found by users for as low as $467 on Delta. Other airlines that offer cheap prices include British Airways from $472 and Air Canada from $521 one-way.

  • What are the most popular routes from State of Washington to Oslo Gardermoen Airport?

    The most popular route from State of Washington to Oslo Gardermoen Airport is Seattle/Tacoma Intl - Oslo Gardermoen. You may also consider Portland - Oslo Gardermoen or Spokane - Oslo Gardermoen.

  • Can I find deals for flights from Washington to Oslo Gardermoen that include hotel bookings?

    Yes. In addition to deals on Washington to Oslo Gardermoen flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Oslo Gardermoen?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Oslo Gardermoen.

  • Can I find deals for business class flights from Washington to Oslo Gardermoen?

    Yes. Cheapflights offers flight deals from Washington to Oslo Gardermoen 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 State of Washington to Oslo Gardermoen Airport?

    Currently, November is the cheapest month in which you can book a flight from State of Washington to Oslo Gardermoen Airport (average of $567). Flying from State of Washington to Oslo Gardermoen Airport in June is currently the most expensive (average of $1,134). 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 Washington to Oslo Gardermoen

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Washington to Oslo Gardermoen

Discover the top 10 airlines that operate flights from Washington to Oslo Gardermoen. 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 February 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$454Average$1,113FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$475Average$694FlexibilityNo cancel feeOn-time70%
FinnairCheapest$484Average$869FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$533Average$898FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$562Average$699FlexibilityNo cancel feeOn-time71%
DeltaCheapest$569Average$1,064FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$570Average$902FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$578Average$943FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$590Average$902FlexibilityNo cancel feeOn-time77%
KLMCheapest$590Average$1,055FlexibilityNo cancel feeOn-time75%
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