HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Oslo Gardermoen

$348+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OSL
Nov 12 — Nov 191
Wed 11/12
Wed 11/19
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 October 13, 2025.

Round-trip from

$419
(Icelandair)

One-way from

$348
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$487
From Washington to Oslo Gardermoen
Search Deals
One-way flight from Washington to Oslo Gardermoen
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($146 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 13, 2025.

This oojo deal was found by Cheapflights users on 10/11. 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 10/213:45 pmSEA - OSL
1 stop14h 40mIcelandair
Thu 11/61:10 pmOSL - SEA
1 stop12h 50mIcelandair
Deal found 10/11$393
This FlightHub deal was found by Cheapflights users on 10/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/292:35 pmSEA - OSL
1 stop12h 00mIcelandair
Tue 1/131:10 pmOSL - SEA
1 stop12h 50mIcelandair
Deal found 10/12$434
This Mytrip deal was found by Cheapflights users on 10/12. 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 11/262:35 pmSEA - OSL
1 stop12h 00mIcelandair
Wed 12/31:10 pmOSL - SEA
1 stop12h 50mIcelandair
Deal found 10/12$444
This Icelandair deal was found by Cheapflights users on 10/12. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:35 pmSEA - OSL
1 stop12h 00mIcelandair
Sun 12/79:30 pmOSL - SEA
1 stop28h 30mIcelandair
Deal found 10/12$457
This Mytrip deal was found by Cheapflights users on 10/12. 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.
Mon 11/32:45 pmPDX - OSL
1 stop11h 50mIcelandair
Mon 11/171:10 pmOSL - PDX
1 stop12h 50mIcelandair
Deal found 10/12$474
This oojo deal was found by Cheapflights users on 10/12. 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 12/42:35 pmSEA - OSL
1 stop12h 00mIcelandair
Mon 12/151:10 pmOSL - SEA
1 stop12h 50mIcelandair
Deal found 10/12$480
This FlightHub deal was found by Cheapflights users on 10/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1112:46 pmPDX - OSL
2 stops21h 29mScandinavian Airlines
Tue 11/1810:25 amOSL - PDX
2 stops21h 31mScandinavian Airlines
Deal found 10/12$482
This Mytrip deal was found by Cheapflights users on 10/12. 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 11/2610:05 amSEA - OSL
2 stops20h 15mMultiple Airlines
Wed 12/36:05 amOSL - SEA
2 stops22h 11mMultiple Airlines
Deal found 10/12$489
This American Airlines deal was found by Cheapflights users on 10/12. 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.
Tue 10/217:55 amSEA - OSL
2 stops17h 40mMultiple Airlines
Thu 11/67:05 amOSL - SEA
2 stops21h 39mMultiple Airlines
Deal found 10/12$502
This Mytrip deal was found by Cheapflights users on 10/12. 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.
Mon 11/108:10 amSEA - OSL
2 stops24h 30mMultiple Airlines
Mon 11/176:15 amOSL - SEA
2 stops24h 51mMultiple Airlines
Deal found 10/12$504
This Mytrip deal was found by Cheapflights users on 10/13. 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.
Thu 11/273:15 pmPDX - OSL
2 stops41h 25mMultiple Airlines
Thu 12/46:15 amOSL - PDX
2 stops21h 15mMultiple Airlines
Deal found 10/13$536
This Air France deal was found by Cheapflights users on 10/12. 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 11/1111:35 amPDX - OSL
2 stops18h 10mMultiple Airlines
Tue 11/185:00 pmOSL - PDX
1 stop27h 25mMultiple Airlines
Deal found 10/12$562

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 October 13, 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

Thu 10/30

3:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Thu 11/27

1:10 pm-5:00 pm

1 stop12h 50m

$419

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 12/3

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Sun 12/7

9:30 pm-5:00 pm

1 stop28h 30m

$457

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 4/5

8:20 pm-11:40 pm

1 stop18h 20m

Oslo Gardermoen

Sat 4/11

8:20 am-11:30 am

1 stop36h 10m

$479

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Thu 12/4

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Mon 12/15

1:10 pm-5:00 pm

1 stop12h 50m

$480

PortlandOslo

PDX - OSL

PDXOSL

Portland

Tue 11/11

12:46 pm-7:15 pm

2 stops21h 29m

Oslo Gardermoen

Tue 11/18

10:25 am-10:56 pm

2 stops21h 31m

$482

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 11/12

10:35 am-7:15 pm

2 stops23h 40m

Oslo Gardermoen

Wed 11/19

9:00 am-10:56 pm

2 stops22h 56m

$482

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 2/18

1:00 pm-6:15 pm

2 stops20h 15m

Oslo Gardermoen

Fri 2/27

12:10 pm-10:22 pm

2 stops19h 12m

$483

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 11/10

8:10 am-5:40 pm

2 stops24h 30m

Oslo Gardermoen

Mon 11/17

6:15 pm-12:10 pm

1 stop26h 55m

$508

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 4/7

12:40 am-8:40 pm

2 stops35h 00m

Oslo Gardermoen

Fri 4/17

9:20 am-3:50 pm

1 stop15h 30m

$517

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 12/29

2:05 pm-2:45 pm

1 stop15h 40m

Oslo Gardermoen

Tue 1/13

6:30 am-5:00 pm

2 stops19h 30m

$517

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

Showing 1-10 of 31 results
1
2
3
4

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, January is the cheapest month in which you can book a flight from State of Washington to Oslo Gardermoen Airport (average of $340). Flying from State of Washington to Oslo Gardermoen Airport in June is currently the most expensive (average of $537). 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 October 13, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 38% on flights from State of Washington to Oslo Gardermoen Airport by exploring options for tickets in the evening.

What is the cheapest day to fly from State of Washington to Oslo Gardermoen Airport?

Use this chart to determine the cheapest time to fly round-trip from Washington to Oslo Gardermoen. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their State of Washington to Oslo Gardermoen Airport flight should consider departing on Saturday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from State of Washington to Oslo Gardermoen Airport?

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.

  • How long is the flight from State of Washington to Oslo Gardermoen Airport?

    Departing from State of Washington to Oslo Gardermoen Airport will take you 12h. State of Washington and Oslo Gardermoen Airport are separated by a distance of 4551 mi. This flight may include one or multiple stops.

  • 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, January is the cheapest month in which you can book a flight from State of Washington to Oslo Gardermoen Airport (average of $340). Flying from State of Washington to Oslo Gardermoen Airport in June is currently the most expensive (average of $537). 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 Oslo Gardermoen Airport?

Book flights to Oslo Gardermoen Airport 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
Dallas/Fort Worth to Oslo Gardermoen flights
LaGuardia to Oslo Gardermoen flights
Seattle to Oslo Gardermoen flights
Dulles Intl to Oslo Gardermoen flights
O'Hare Intl to Oslo Gardermoen flights
Minneapolis to Oslo Gardermoen flights
Reagan-National to Oslo Gardermoen flights
Baltimore to Oslo Gardermoen flights
Love Field to Oslo Gardermoen flights
Los Angeles to Oslo Gardermoen flights
Boston to Oslo Gardermoen flights
John F Kennedy Intl to Sandefjord flights
Denver to Oslo Gardermoen flights
Newark to Sandefjord flights
San Francisco to Oslo Gardermoen flights
Atlanta to Oslo Gardermoen flights
Hobby to Oslo Gardermoen flights
Orlando to Oslo Gardermoen flights
Salt Lake City to Oslo Gardermoen flights
Miami to Oslo Gardermoen flights
Midway to Oslo Gardermoen flights
Charlotte to Oslo Gardermoen flights
Oakland to Oslo Gardermoen flights
Stewart to Oslo Gardermoen flights
Fargo to Oslo Gardermoen flights
Los Angeles to Sandefjord flights
O'Hare Intl to Sandefjord flights
George Bush Intcntl to Oslo Gardermoen flights
Cincinnati to Oslo Gardermoen flights
Ontario to Oslo Gardermoen flights
Santa Ana to Oslo Gardermoen flights
Tampa to Oslo Gardermoen flights
Boston to Sandefjord flights
Raleigh to Oslo Gardermoen flights
Burbank to Oslo Gardermoen flights
Dulles Intl to Sandefjord flights
San Jose to Oslo Gardermoen flights
Detroit to Oslo Gardermoen flights
Indianapolis to Oslo Gardermoen flights
Philadelphia to Oslo Gardermoen flights
San Diego to Oslo Gardermoen flights
Portland to Oslo Gardermoen flights
Las Vegas to Oslo Gardermoen flights
Cleveland to Oslo Gardermoen flights
Fort Lauderdale to Oslo Gardermoen flights
Austin to Oslo Gardermoen flights
Columbus to Oslo Gardermoen flights
Wilmington 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 October 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$404Average$555FlexibilityNo cancel feeOn-time76%
DeltaCheapest$468Average$837FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$491Average$767FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$494Average$719FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$497Average$651FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$517Average$840FlexibilityNo cancel feeOn-time69%
KLMCheapest$524Average$762FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$551Average$771FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$552Average$615FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$578Average$673FlexibilityNo cancel feeOn-time71%

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.