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$315+ Cheap flights from Oslo 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — SEA
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Oslo to Washington

Cheapest flights from Oslo to Washington
Explore the most affordable flight options available from Oslo to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 1/28. 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.
Tue 5/128:35 am
OSL
-
SEA
1 stop16h 25m
Multiple Airlines
Tue 6/28:20 pm
SEA
-
OSL
1 stop18h 00m
Multiple Airlines
Deal found 1/28$414
This Ticket deal was found by Cheapflights users on 1/28. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/159:30 pm
OSL
-
SEA
1 stop28h 30m
Icelandair
Mon 3/22:35 pm
SEA
-
OSL
1 stop12h 00m
Icelandair
Deal found 1/28$424
This Ticket deal was found by Cheapflights users on 1/29. 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.
Sun 3/157:20 am
OSL
-
PDX
1 stop17h 35m
British Airways
Mon 3/305:40 am
PDX
-
OSL
2 stops32h 45m
British Airways
Deal found 1/29$443
This Ticket deal was found by Cheapflights users on 1/29. 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.
Sun 3/158:50 pm
OSL
-
PDX
2 stops33h 12m
Finnair
Mon 3/307:30 pm
PDX
-
OSL
2 stops27h 20m
Finnair
Deal found 1/29$452
This Icelandair deal was found by Cheapflights users on 1/26. 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.
Thu 4/231:50 pm
OSL
-
SEA
1 stop15h 50m
Icelandair
Mon 4/273:40 pm
SEA
-
OSL
1 stop11h 55m
Icelandair
Deal found 1/26$478
This FlightHub deal was found by Cheapflights users on 1/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/111:50 pm
OSL
-
SEA
1 stop13h 05m
Icelandair
Wed 6/37:00 pm
SEA
-
OSL
1 stop11h 25m
Icelandair
Deal found 1/28$481
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/94:30 pm
OSL
-
SEA
1 stop13h 10m
Icelandair
Sat 5/307:00 pm
SEA
-
OSL
1 stop11h 25m
Icelandair
Deal found 1/28$491
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/111:50 pm
OSL
-
SEA
1 stop13h 05m
Icelandair
Sat 5/303:40 pm
SEA
-
OSL
1 stop11h 55m
Icelandair
Deal found 1/28$492
This Icelandair deal was found by Cheapflights users on 1/28. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/101:50 pm
OSL
-
SEA
1 stop13h 05m
Icelandair
Sat 5/303:40 pm
SEA
-
OSL
1 stop11h 55m
Icelandair
Deal found 1/28$494
This Travelis deal was found by Cheapflights users on 1/28. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/46:45 pm
OSL
-
SEA
1 stop31h 14m
Multiple Airlines
Thu 4/97:00 am
SEA
-
OSL
2 stops23h 15m
Multiple Airlines
Deal found 1/28$498
This Delta deal was found by Cheapflights users on 1/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/119:20 am
OSL
-
SEA
2 stops20h 08m
Delta
Mon 6/110:00 pm
SEA
-
OSL
1 stop13h 40m
Delta
Deal found 1/28$499
This British Airways deal was found by Cheapflights users on 1/26. 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.
Wed 4/2211:35 am
OSL
-
PDX
1 stop15h 05m
British Airways
Sun 4/266:22 am
PDX
-
OSL
2 stops43h 08m
British Airways
Deal found 1/26$503

Find flight deals from Oslo to Washington

Keep the following information in mind while searching for Oslo to Washington flight deals. Data was last updated January 29, 2026.

Round-trip from

$414
(Cheapflightsfares)

One-way from

$315
(Finnair)

Popular in

December

Cheapest in

May

Average price

$576
From Oslo to Washington
Search Deals
One-way flight from Oslo to Washington
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oslo 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 January 29, 2026.
Use the filters below to find and compare flights from Oslo to Washington that are best for you.

Fly from

Oslo

Fly to

Washington

Route

Depart

Return

Price

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Tue 5/12

12:50 pm-10:26 pm

2 stops18h 36m

Seattle/Tacoma Intl

Tue 6/2

8:20 pm-11:20 pm

1 stop18h 00m

$426

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sun 2/15

9:30 pm-5:00 pm

1 stop28h 30m

Seattle/Tacoma Intl

Mon 3/2

2:35 pm-11:35 am

1 stop12h 00m

$456

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sun 3/15

7:20 am-4:55 pm

1 stop17h 35m

Portland

Mon 3/30

7:30 pm-11:25 pm

1 stop18h 55m

$475

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 4/23

1:50 pm-8:40 pm

1 stop15h 50m

Seattle/Tacoma Intl

Mon 4/27

3:40 pm-12:35 pm

1 stop11h 55m

$478

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Tue 5/12

4:30 pm-8:40 pm

1 stop13h 10m

Seattle/Tacoma Intl

Sat 5/30

3:40 pm-12:35 pm

1 stop11h 55m

$494

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sun 2/15

6:30 am-4:48 pm

2 stops19h 18m

Seattle/Tacoma Intl

Mon 3/2

2:10 pm-4:20 pm

1 stop17h 10m

$502

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Wed 4/22

11:35 am-5:40 pm

1 stop15h 05m

Portland

Sun 4/26

6:22 am-10:30 am

2 stops43h 08m

$503

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 4/23

6:25 pm-11:35 am

1 stop26h 10m

Seattle/Tacoma Intl

Mon 4/27

7:00 am-4:20 pm

2 stops24h 20m

$503

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 5/14

1:50 pm-5:55 pm

1 stop13h 05m

Seattle/Tacoma Intl

Mon 6/1

7:00 pm-3:25 pm

1 stop11h 25m

$504

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sat 5/9

4:30 pm-8:40 pm

1 stop13h 10m

Seattle/Tacoma Intl

Sun 5/31

7:00 pm-3:25 pm

1 stop11h 25m

$504

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 53 results
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Best time to book a flight from Oslo to Washington

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

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

Currently, November is the cheapest month in which you can book a flight from Oslo to State of Washington (average of $371). Flying from Oslo to State of Washington in July is currently the most expensive (average of $514). 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.

How much does it cost to fly round-trip from Oslo 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 January 29, 2026.
Peruse reviews from past customers who have flown with Delta, Scandinavian Airlines, and Icelandair from Oslo 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
7.9
Good
8,128 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,128 reviews
Delta
7.9
Good
8,128 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Scandinavian Airlines
7.3
Good
1,674 reviews
Delta
7.9
Good
8,128 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Icelandair
7.1
Good
606 reviews
Delta
7.9
Good
8,128 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Lufthansa
6.8
Okay
7,754 reviews
Delta
7.9
Good
8,128 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Oslo to Washington. 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 Oslo to State of Washington?

    There are many flights that can get you from Oslo to State of Washington in 17h 35m. Fly via Icelandair, British Airways, or American Airlines to get the fastest option. Airlines will cover a distance of 4674 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Oslo to State of Washington one-way?

    To fly one-way, consider booking your trip with Scandinavian Airlines, which is currently one of the cheapest options available, starting at $251. American Airlines flights start at $275 while deals on Finnair start at $303 one-way.

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

    Most travelers choose Oslo Gardermoen - Seattle/Tacoma Intl, Oslo Gardermoen - Portland or Oslo Sandefjord - Seattle/Tacoma Intl when deciding on the best route from Oslo to State of Washington.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Oslo to State of Washington (average of $371). Flying from Oslo to State of Washington in July is currently the most expensive (average of $514). 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 to Washington

See prices for flight routes from nearby airports that may be better suited for you.
Oslo Gardermoen to Newark flights
Oslo Gardermoen to John F Kennedy Intl flights
Oslo Gardermoen to LaGuardia flights
Sandefjord to John F Kennedy Intl flights
Sandefjord to Newark flights
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Sandefjord to Dulles Intl flights
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Bergen to Newark flights
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Trondheim to Orlando flights
Sandefjord to Orlando flights
Oslo Gardermoen to Flint flights
Sandefjord to San Francisco flights
Oslo Gardermoen to Tampa flights
Oslo Gardermoen to Austin flights
Oslo Gardermoen to Sky Harbor Intl flights
Oslo Gardermoen to Salt Lake City flights

Top 4 airlines flying from Oslo to Washington

Discover the top 4 airlines that operate flights from Oslo 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$436Average$539FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$436Average$632FlexibilityNo cancel feeOn-time76%
DeltaCheapest$455Average$525FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$603Average$703FlexibilityNo cancel feeOn-time77%

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