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$276+ 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — SEA
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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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 September 15, 2025.

Round-trip from

$404
(Ticket)

One-way from

$276
(Finnair)

Popular in

July

Cheapest in

November

Average price

$547
From Oslo to Washington
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One-way flight from Oslo to Washington
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Highest demand for flights based on searches. 14% potential increase in price ($95 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 15, 2025.

This Ticket deal was found by Cheapflights users on 9/14. 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 10/64:45 pmOSL - SEA
1 stop12h 55mIcelandair
Sun 10/197:00 pmSEA - OSL
1 stop32h 35mIcelandair
Deal found 9/14$404
This Ticket deal was found by Cheapflights users on 9/15. 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 10/66:45 amOSL - SEA
2 stops21h 04mMultiple Airlines
Sun 10/196:50 pmSEA - OSL
1 stop14h 15mMultiple Airlines
Deal found 9/15$446
This Ticket deal was found by Cheapflights users on 9/13. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/263:05 pmOSL - SEA
1 stop29h 25mBritish Airways
Sat 1/107:44 amSEA - OSL
2 stops30h 16mBritish Airways
Deal found 9/13$447
This Ticket deal was found by Cheapflights users on 9/15. 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.
Sat 10/46:35 amOSL - SEA
1 stop14h 20mLufthansa
Wed 10/152:20 pmSEA - OSL
1 stop12h 55mLufthansa
Deal found 9/15$448
This Ticket deal was found by Cheapflights users on 9/14. 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.
Sat 11/87:10 amOSL - PDX
2 stops21h 04mBritish Airways
Sun 11/2312:00 pmPDX - OSL
2 stops25h 40mBritish Airways
Deal found 9/14$449
This Ticket deal was found by Cheapflights users on 9/15. 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 9/246:05 amOSL - SEA
1 stop20h 35mMultiple Airlines
Thu 10/25:40 pmSEA - OSL
1 stop13h 40mMultiple Airlines
Deal found 9/15$454
This Ticket deal was found by Cheapflights users on 9/15. 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 10/263:05 pmOSL - SEA
2 stops36h 24mBritish Airways
Sat 11/81:35 pmSEA - OSL
1 stop24h 25mBritish Airways
Deal found 9/15$459
This Ticket deal was found by Cheapflights users on 9/14. 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 10/68:00 amOSL - SEA
2 stops20h 29mBritish Airways
Sun 10/1910:39 amSEA - OSL
2 stops28h 01mBritish Airways
Deal found 9/14$460
This Icelandair deal was found by Cheapflights users on 9/15. 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.
Mon 10/64:45 pmOSL - SEA
1 stop12h 55mIcelandair
Sat 10/183:45 pmSEA - OSL
1 stop11h 50mIcelandair
Deal found 9/15$461
This deal was found by Cheapflights users on 9/13. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/221:10 pmOSL - SEA
1 stop12h 50mIcelandair
Sat 12/62:35 pmSEA - OSL
1 stop12h 00mIcelandair
Deal found 9/13$462
This Finnair deal was found by Cheapflights users on 9/15. 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.
Fri 11/78:15 amOSL - PDX
2 stops19h 59mFinnair
Fri 11/145:45 pmPDX - OSL
2 stops29h 15mFinnair
Deal found 9/15$463
This American Airlines deal was found by Cheapflights users on 9/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/87:10 amOSL - PDX
2 stops23h 13mAmerican Airlines
Sun 11/236:00 amPDX - OSL
2 stops31h 40mAmerican Airlines
Deal found 9/13$470

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 September 15, 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

Fri 12/26

3:05 pm-11:30 am

1 stop29h 25m

Seattle/Tacoma Intl

Sat 1/10

7:44 am-11:00 pm

2 stops30h 16m

$447

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 10/6

5:05 pm-11:10 am

1 stop27h 05m

Seattle/Tacoma Intl

Sun 10/19

1:35 pm-11:40 pm

2 stops25h 05m

$449

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sat 11/8

7:10 am-7:14 pm

2 stops21h 04m

Portland

Sun 11/23

1:47 pm-10:40 pm

2 stops23h 53m

$454

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Fri 11/7

8:15 am-7:14 pm

2 stops19h 59m

Portland

Fri 11/14

5:45 pm-11:40 am

2 stops32h 55m

$463

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Fri 11/7

8:15 am-7:14 pm

2 stops19h 59m

Portland

Fri 11/14

5:45 pm-8:00 am

2 stops29h 15m

$463

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 10/20

4:45 pm-5:50 pm

1 stop34h 05m

Seattle/Tacoma Intl

Wed 4/1

3:45 pm-3:55 pm

1 stop15h 10m

$464

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 10/2

11:50 am-4:05 pm

1 stop13h 15m

Seattle/Tacoma Intl

Wed 10/15

8:25 pm-8:40 pm

1 stop15h 15m

$467

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Thu 2/26

3:05 pm-3:55 pm

1 stop33h 50m

Portland

Mon 3/2

5:51 am-6:40 pm

2 stops27h 49m

$468

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 12/25

3:05 pm-11:30 am

1 stop29h 25m

Seattle/Tacoma Intl

Sat 1/10

6:50 pm-11:00 pm

1 stop19h 10m

$468

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sat 11/8

7:10 am-9:23 pm

2 stops23h 13m

Portland

Sun 11/23

6:00 am-10:40 pm

2 stops31h 40m

$470

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 46 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, January is the cheapest month in which you can book a flight from Oslo to State of Washington (average of $238). Flying from Oslo to State of Washington in June is currently the most expensive (average of $387). 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 September 15, 2025.

When flying from Oslo to State of Washington, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 September 15, 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
8.0
Very good
7,954 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Delta
8.0
Very good
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Scandinavian Airlines
7.4
Good
1,484 reviews
Delta
8.0
Very good
7,954 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Icelandair
7.0
Good
544 reviews
Delta
8.0
Very good
7,954 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Lufthansa
6.8
Okay
7,407 reviews
Delta
8.0
Very good
7,954 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
British Airways
6.7
Okay
7,361 reviews
Delta
8.0
Very good
7,954 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

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 19h 59m. Fly via British Airways, Finnair, or Icelandair 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 Finnair, which is currently one of the cheapest options available, starting at $290. British Airways flights start at $305 while deals on Delta start at $921 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, January is the cheapest month in which you can book a flight from Oslo to State of Washington (average of $238). Flying from Oslo to State of Washington in June is currently the most expensive (average of $387). 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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Oslo Gardermoen to John F Kennedy Intl flights
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Sandefjord to John F Kennedy Intl flights
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Sandefjord to Dulles Intl flights
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Bergen to Newark flights
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Sandefjord to Las Vegas flights
Oslo Gardermoen to Tampa flights
Stavanger to John F Kennedy Intl flights
Sandefjord to Boston flights
Bergen to Miami flights
Stavanger to Newark flights
Oslo Gardermoen to Fayetteville flights

Top 6 airlines flying from Oslo to Washington

Discover the top 6 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$399Average$538FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$416Average$490FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$419Average$600FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$423Average$558FlexibilityNo cancel feeOn-time76%
DeltaCheapest$452Average$525FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$603Average$703FlexibilityNo cancel feeOn-time77%

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