HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Oslo Gardermoen

$221+ 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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OSL
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington to Oslo Gardermoen with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 2, 2025.

Round-trip from

$437
(Mytrip)

One-way from

$221
(oojo)

Popular in

June

Cheapest in

November

Average price

$594
From Washington to Oslo Gardermoen
Search Deals
One-way flight from Washington to Oslo Gardermoen
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($226 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 2, 2025.

This oojo deal was found by Cheapflights users on 4/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/93:45 pmSEA - OSL
1 stop11h 50mIcelandair
Thu 11/201:05 pmOSL - SEA
1 stop12h 55mIcelandair
Deal found 4/2$436
This Mytrip deal was found by Cheapflights users on 4/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/44:00 pmSEA - OSL
1 stop15h 35mScandinavian Airlines
Sun 6/158:55 pmOSL - SEA
1 stop25h 55mScandinavian Airlines
Deal found 4/2$437
This oojo deal was found by Cheapflights users on 4/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/153:20 pmPDX - OSL
1 stop12h 15mIcelandair
Mon 10/204:45 pmOSL - PDX
1 stop34h 10mIcelandair
Deal found 4/2$487
This Finnair deal was found by Cheapflights users on 4/1. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/282:35 pmSEA - OSL
1 stop24h 05mMultiple Airlines
Fri 11/78:45 amOSL - SEA
2 stops19h 13mMultiple Airlines
Deal found 4/1$516
This SWISS deal was found by Cheapflights users on 4/1. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/42:00 pmSEA - OSL
2 stops43h 00mSWISS
Mon 12/151:00 pmOSL - SEA
2 stops40h 54mSWISS
Deal found 4/1$519
This Finnair deal was found by Cheapflights users on 4/1. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2810:00 amSEA - OSL
2 stops18h 30mFinnair
Fri 11/78:45 amOSL - SEA
2 stops19h 13mFinnair
Deal found 4/1$526
This United deal was found by Cheapflights users on 4/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/411:05 amSEA - OSL
2 stops21h 05mUnited Airlines
Mon 12/1511:50 amOSL - SEA
1 stop34h 30mUnited Airlines
Deal found 4/1$529
This Lufthansa deal was found by Cheapflights users on 4/1. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/42:00 pmSEA - OSL
1 stop18h 35mLufthansa
Mon 12/156:45 pmOSL - SEA
1 stop27h 35mLufthansa
Deal found 4/1$541
This Justfly.com deal was found by Cheapflights users on 4/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/13:05 pmSEA - OSL
2 stops42h 50mAir Canada
Sun 11/161:35 pmOSL - SEA
2 stops37h 50mAir Canada
Deal found 4/1$554
This oojo deal was found by Cheapflights users on 4/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/153:57 pmSEA - OSL
2 stops18h 18mBritish Airways
Mon 10/208:35 pmOSL - SEA
2 stops30h 45mBritish Airways
Deal found 4/1$569
This Finnair deal was found by Cheapflights users on 4/1. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/98:01 amPDX - OSL
2 stops19h 34mFinnair
Tue 9/238:35 amOSL - PDX
2 stops18h 58mFinnair
Deal found 4/1$572
This Delta deal was found by Cheapflights users on 4/2. 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.
Mon 5/1211:55 amSEA - OSL
2 stops19h 45mDelta
Mon 5/196:05 amOSL - SEA
1 stop20h 20mDelta
Deal found 4/2$576

Cheapflights Fare Finder

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 April 2, 2025.
Use the filters below to find and compare flights from Washington to Oslo Gardermoen Airport that are best for you.

Fly from

Washington

Fly to

Oslo Gardermoen

Route

Depart

Return

Price

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 6/4

4:00 pm-4:35 pm

1 stop15h 35m

Oslo Gardermoen

Sun 6/15

8:55 pm-1:50 pm

1 stop25h 55m

$437

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sat 4/12

3:45 pm-12:35 pm

1 stop11h 50m

Oslo Gardermoen

Sun 4/20

1:50 pm-8:40 pm

1 stop15h 50m

$484

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 5/7

5:40 pm-8:05 pm

1 stop17h 25m

Oslo Gardermoen

Wed 6/4

1:20 pm-4:00 pm

1 stop11h 40m

$557

PortlandOslo

PDX - OSL

PDXOSL

Portland

Tue 9/9

8:01 am-12:35 pm

2 stops19h 34m

Oslo Gardermoen

Tue 9/23

8:35 am-6:33 pm

2 stops18h 58m

$572

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 5/12

11:55 am-4:40 pm

2 stops19h 45m

Oslo Gardermoen

Mon 5/19

6:05 am-5:25 pm

1 stop20h 20m

$576

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 4/9

6:58 am-10:40 am

2 stops18h 42m

Oslo Gardermoen

Wed 4/23

7:40 am-6:20 pm

1 stop19h 40m

$585

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 5/7

11:14 am-11:30 pm

2 stops27h 16m

Oslo Gardermoen

Wed 5/21

7:40 am-5:35 pm

1 stop18h 55m

$587

PortlandOslo

PDX - OSL

PDXOSL

Portland

Tue 9/9

7:25 pm-11:25 pm

1 stop19h 00m

Oslo Gardermoen

Tue 9/23

7:45 am-8:53 pm

2 stops22h 08m

$591

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 4/9

6:58 am-10:40 am

2 stops18h 42m

Oslo Gardermoen

Wed 4/23

7:40 am-9:14 pm

2 stops22h 34m

$595

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 5/7

1:15 pm-8:55 pm

1 stop22h 40m

Oslo Gardermoen

Tue 5/13

4:35 pm-11:20 am

1 stop27h 45m

$611

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 42 results
1
2
3
...
5

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.

Cheapflights Insights

Everything you need to know about your flight from Washington to Oslo Gardermoen Airport

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 $1,110). 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 April 2, 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 April 2, 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
7,897 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

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
7,897 reviews
Delta
8.0
Very good
7,897 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

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
1,323 reviews
Delta
8.0
Very good
7,897 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

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
1,267 reviews
Delta
8.0
Very good
7,897 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

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.
SWISS
7.5
Good
1,572 reviews
Delta
8.0
Very good
7,897 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

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
1,427 reviews
Delta
8.0
Very good
7,897 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

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 $221 on Icelandair. Other airlines that offer cheap prices include Lufthansa from $442 and British Airways from $463 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 $1,110). 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

Traveling to a place near Washington?

Book flights to Washington if you plan to visit one of these locations
Gardermoen

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington to Oslo Gardermoen

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Oslo Gardermoen flights
John F Kennedy Intl to Oslo Gardermoen flights
Seattle to Oslo Gardermoen flights
O'Hare Intl to Oslo Gardermoen flights
Minneapolis to Oslo Gardermoen flights
Dallas/Fort Worth to Oslo Gardermoen flights
LaGuardia to Oslo Gardermoen flights
Dulles Intl to Oslo Gardermoen flights
Los Angeles to Oslo Gardermoen flights
San Francisco to Oslo Gardermoen flights
Boston to Oslo Gardermoen flights
Baltimore to Oslo Gardermoen flights
John F Kennedy Intl to Sandefjord flights
Midway to Oslo Gardermoen flights
Reagan-National to Oslo Gardermoen flights
Miami to Oslo Gardermoen flights
Denver to Oslo Gardermoen flights
Love Field to Oslo Gardermoen flights
Hobby to Oslo Gardermoen flights
O'Hare Intl to Sandefjord flights
Dulles Intl to Sandefjord flights
Boston to Sandefjord flights
Atlanta to Oslo Gardermoen flights
Los Angeles to Sandefjord flights
Seattle to Sandefjord flights
Salt Lake City to Oslo Gardermoen flights
George Bush Intcntl to Oslo Gardermoen flights
Portland to Oslo Gardermoen flights
Detroit to Oslo Gardermoen flights
Orlando to Oslo Gardermoen flights
Burbank to Oslo Gardermoen flights
Stewart to Oslo Gardermoen flights
Philadelphia to Oslo Gardermoen flights
San Francisco to Sandefjord flights
Santa Ana to Oslo Gardermoen flights
Newark to Sandefjord flights
Charlotte to Oslo Gardermoen flights
Ontario to Oslo Gardermoen flights
San Diego to Oslo Gardermoen flights
Denver to Sandefjord flights
Sky Harbor Intl to Oslo Gardermoen flights
Fort Lauderdale to Oslo Gardermoen flights
St. Louis to Oslo Gardermoen flights
Des Moines to Oslo Gardermoen flights
Cleveland to Oslo Gardermoen flights
San Jose to Oslo Gardermoen flights
Tampa to Oslo Gardermoen flights
Minneapolis to Sandefjord flights
Raleigh to Oslo Gardermoen flights

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 April 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$449Average$1,079FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$475Average$657FlexibilityNo cancel feeOn-time70%
FinnairCheapest$484Average$800FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$564Average$694FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$570Average$840FlexibilityNo cancel feeOn-time69%
DeltaCheapest$573Average$1,011FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$590Average$898FlexibilityNo cancel feeOn-time77%
KLMCheapest$591Average$1,062FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$613Average$971FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$728Average$984FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.