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$295+ 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — SEA
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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Find 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 November 2, 2025.

This Ticket deal was found by Cheapflights users on 11/1. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/141:10 pmOSL - SEA
1 stop12h 50mIcelandair
Thu 11/272:35 pmSEA - OSL
1 stop12h 00mIcelandair
Deal found 11/1$431
This Ticket deal was found by Cheapflights users on 11/1. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/241:10 pmOSL - SEA
1 stop12h 50mIcelandair
Sun 12/72:35 pmSEA - OSL
1 stop12h 00mIcelandair
Deal found 11/1$438
This Travelis deal was found by Cheapflights users on 10/30. 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 11/241:10 pmOSL - SEA
1 stop12h 50mIcelandair
Wed 12/102:35 pmSEA - OSL
1 stop12h 00mIcelandair
Deal found 10/30$458
This Ticket deal was found by Cheapflights users on 11/1. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:15 amOSL - SEA
1 stop14h 55mLufthansa
Sun 12/77:00 amSEA - OSL
2 stops21h 05mLufthansa
Deal found 11/1$471
This Travelis deal was found by Cheapflights users on 11/1. 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.
Thu 11/206:15 amOSL - SEA
1 stop14h 55mLufthansa
Thu 12/41:40 pmSEA - OSL
2 stops25h 05mLufthansa
Deal found 11/1$475
This Ticket deal was found by Cheapflights users on 11/1. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/205:00 pmOSL - SEA
1 stop27h 45mKLM
Thu 12/43:05 pmSEA - OSL
1 stop16h 10mKLM
Deal found 11/1$477
This Ticket deal was found by Cheapflights users on 11/2. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/101:10 pmOSL - PDX
1 stop12h 50mIcelandair
Mon 11/242:45 pmPDX - OSL
1 stop11h 50mIcelandair
Deal found 11/2$490
This Travelis deal was found by Cheapflights users on 11/2. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:25 amOSL - SEA
1 stop15h 55mMultiple Airlines
Thu 11/273:00 pmSEA - OSL
1 stop22h 30mMultiple Airlines
Deal found 11/2$499
This Delta deal was found by Cheapflights users on 11/2. 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.
Fri 11/146:30 amOSL - SEA
2 stops21h 11mDelta
Thu 11/274:48 pmSEA - OSL
1 stop17h 02mDelta
Deal found 11/2$500
This ResecentrumGruppen deal was found by Cheapflights users on 11/1. 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 ResecentrumGruppen is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/91:05 pmOSL - PDX
1 stop12h 55mIcelandair
Mon 11/242:45 pmPDX - OSL
1 stop11h 50mIcelandair
Deal found 11/1$503
This ResecentrumGruppen deal was found by Cheapflights users on 11/1. 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 ResecentrumGruppen is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/91:50 pmOSL - PDX
2 stops19h 36mLufthansa
Mon 11/2412:55 pmPDX - OSL
2 stops17h 25mLufthansa
Deal found 11/1$610
This Ticket deal was found by Cheapflights users on 11/2. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/106:45 amOSL - PDX
2 stops22h 44mMultiple Airlines
Mon 11/2412:55 pmPDX - OSL
2 stops19h 35mMultiple Airlines
Deal found 11/2$612

Cheap flight deals from Oslo to Washington

Keep the following information in mind while searching for Oslo to Washington flight deals. Data was last updated November 2, 2025.

Round-trip from

$431
(Ticket)

One-way from

$338
(Finnair)

Popular in

July

Cheapest in

November

Average price

$469
From Oslo to Washington
Search Deals
One-way flight from Oslo to Washington
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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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 November 2, 2025.
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

Mon 11/24

1:10 pm-5:00 pm

1 stop12h 50m

Seattle/Tacoma Intl

Sun 12/7

2:35 pm-11:35 am

1 stop12h 00m

$438

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 11/24

6:15 am-12:10 pm

1 stop14h 55m

Seattle/Tacoma Intl

Sun 12/7

7:00 am-1:05 pm

2 stops21h 05m

$476

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 11/20

6:15 am-8:54 pm

2 stops23h 39m

Seattle/Tacoma Intl

Thu 12/4

1:40 pm-11:45 pm

2 stops25h 05m

$481

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 11/14

6:25 am-1:20 pm

1 stop15h 55m

Seattle/Tacoma Intl

Thu 11/27

3:00 pm-10:30 pm

1 stop22h 30m

$499

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 11/14

6:30 am-6:41 pm

2 stops21h 11m

Seattle/Tacoma Intl

Thu 11/27

4:48 pm-6:50 pm

1 stop17h 02m

$500

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 11/24

6:30 am-6:40 pm

2 stops21h 10m

Seattle/Tacoma Intl

Wed 12/10

11:50 am-1:50 pm

2 stops17h 00m

$503

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sat 11/8

6:30 am-11:45 am

1 stop14h 15m

Seattle/Tacoma Intl

Sun 1/25

6:05 am-8:40 am

2 stops17h 35m

$507

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 11/24

6:15 am-10:40 pm

2 stops25h 25m

Seattle/Tacoma Intl

Sun 12/7

8:10 am-1:05 pm

2 stops19h 55m

$511

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Thu 2/26

1:45 pm-12:44 am

2 stops19h 59m

Portland

Mon 3/2

4:00 pm-5:40 pm

2 stops16h 40m

$558

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Thu 2/26

7:05 am-11:59 pm

2 stops25h 54m

Portland

Mon 3/2

5:45 pm-2:10 pm

1 stop35h 25m

$559

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 42 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, February is the cheapest month in which you can book a flight from Oslo to State of Washington (average of $359). Flying from Oslo to State of Washington in July is currently the most expensive (average of $500). 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 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 November 2, 2025.

A simple way to save on the total cost of your ticket is to fly from Oslo to State of Washington in the evening. If you’re flexible enough to do this you can expect to save up to 40% on your trip compared to booking a flight at noon.

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 November 2, 2025.
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
7,996 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
Delta
7.9
Good
7,996 reviews
Delta
7.9
Good
7,996 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
Scandinavian Airlines
7.4
Good
1,550 reviews
Delta
7.9
Good
7,996 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
Icelandair
7.1
Good
563 reviews
Delta
7.9
Good
7,996 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
Lufthansa
6.8
Okay
7,542 reviews
Delta
7.9
Good
7,996 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
British Airways
6.7
Okay
7,491 reviews
Delta
7.9
Good
7,996 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.

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 12h 50m. Fly via Icelandair, Lufthansa, or United Airlines to get the fastest option. Airlines will cover a distance of 4551 mi. This flight may include one or multiple stops.

  • 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, February is the cheapest month in which you can book a flight from Oslo to State of Washington (average of $359). Flying from Oslo to State of Washington in July is currently the most expensive (average of $500). 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.
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Top 5 airlines flying from Oslo to Washington

Discover the top 5 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 November 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$362Average$600FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$399Average$607FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$423Average$532FlexibilityNo cancel feeOn-time76%
DeltaCheapest$452Average$525FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$603Average$703FlexibilityNo cancel feeOn-time77%

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