HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington

$371+ Cheap flights from Oslo to Washington

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — SEA
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Oslo to Washington 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 Oslo to Washington

Keep the following information in mind while searching for Oslo to Washington flight deals. Data was last updated February 22, 2025.

Round-trip from

$371
(Ticket)

Popular in

August

Cheapest in

March

Average price

$509
From Oslo to Washington
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($113 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

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 February 22, 2025.

This Ticket deal was found by Cheapflights users on 2/21. 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 4/27:40 amOSL - SEA
1 stop19h 40mMultiple Airlines
Thu 4/1011:20 amSEA - OSL
2 stops27h 35mMultiple Airlines
Deal found 2/21$371
This Travelis deal was found by Cheapflights users on 2/21. 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 4/254:30 pmOSL - SEA
1 stop13h 10mIcelandair
Wed 4/307:00 pmSEA - OSL
1 stop32h 35mIcelandair
Deal found 2/21$383
This Ticket deal was found by Cheapflights users on 2/21. 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 4/2511:45 amOSL - SEA
1 stop32h 50mBritish Airways
Wed 4/306:58 amSEA - OSL
2 stops18h 42mBritish Airways
Deal found 2/21$389
This ResecentrumGruppen deal was found by Cheapflights users on 2/21. 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.
Mon 3/101:15 pmOSL - SEA
2 stops36h 40mFinnair
Mon 3/247:50 pmSEA - OSL
2 stops28h 15mFinnair
Deal found 2/21$415
This Ticket deal was found by Cheapflights users on 2/21. 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 3/316:30 amOSL - SEA
1 stop14h 15mKLM
Sun 4/131:55 pmSEA - OSL
1 stop23h 40mKLM
Deal found 2/21$419
This American Airlines deal was found by Cheapflights users on 2/21. 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.
Mon 3/107:15 amOSL - SEA
2 stops21h 55mAmerican Airlines
Mon 3/247:50 pmSEA - OSL
1 stop14h 45mAmerican Airlines
Deal found 2/21$433
This Delta deal was found by Cheapflights users on 2/21. 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 3/106:30 amOSL - SEA
1 stop14h 10mDelta
Mon 3/241:35 pmSEA - OSL
1 stop18h 50mDelta
Deal found 2/21$440
This American Airlines deal was found by Cheapflights users on 2/21. 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.
Mon 4/141:10 pmOSL - PDX
2 stops32h 25mAmerican Airlines
Sun 4/277:25 pmPDX - OSL
1 stop19h 15mAmerican Airlines
Deal found 2/21$449
This United Airlines deal was found by Cheapflights users on 2/20. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/47:15 amOSL - SEA
3 stops37h 34mUnited Airlines
Sat 4/1211:45 pmSEA - OSL
2 stops33h 20mUnited Airlines
Deal found 2/20$497
This Ticket deal was found by Cheapflights users on 2/21. 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 4/146:30 amOSL - PDX
1 stop13h 50mKLM
Sun 4/271:15 pmPDX - OSL
1 stop34h 30mKLM
Deal found 2/21$516
This Lufthansa deal was found by Cheapflights users on 2/21. 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.
Mon 3/106:15 pmOSL - SEA
2 stops28h 05mLufthansa
Mon 3/243:00 pmSEA - OSL
2 stops18h 55mLufthansa
Deal found 2/21$517
This Sembo deal was found by Cheapflights users on 2/21. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/252:55 pmTRF - SEA
2 stops38h 08mAir France
Wed 4/3011:24 amSEA - TRF
2 stops41h 56mAir France
Deal found 2/21$576

Find flights from Oslo to Washington within your budget

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 February 22, 2025.

Fly from

Oslo

Fly to

Washington

Route

Depart

Return

Price

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Wed 4/2

7:40 am-6:20 pm

1 stop19h 40m

Seattle/Tacoma Intl

Thu 4/10

11:20 am-11:55 pm

2 stops27h 35m

$371

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 4/25

4:30 pm-8:40 pm

1 stop13h 10m

Seattle/Tacoma Intl

Wed 4/30

7:00 pm-12:35 pm

1 stop32h 35m

$383

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 4/25

11:45 am-11:35 am

1 stop32h 50m

Seattle/Tacoma Intl

Wed 4/30

6:58 am-10:40 am

2 stops18h 42m

$389

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 3/10

1:15 pm-5:55 pm

2 stops36h 40m

Seattle/Tacoma Intl

Mon 3/24

7:50 pm-8:05 am

2 stops28h 15m

$415

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 3/31

6:30 am-11:45 am

1 stop14h 15m

Seattle/Tacoma Intl

Sun 4/13

1:55 pm-10:35 pm

1 stop23h 40m

$419

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 3/10

7:15 am-9:10 pm

2 stops21h 55m

Seattle/Tacoma Intl

Mon 3/24

7:50 pm-6:35 pm

1 stop14h 45m

$433

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 3/10

6:30 am-12:40 pm

1 stop14h 10m

Seattle/Tacoma Intl

Mon 3/24

1:35 pm-4:25 pm

1 stop18h 50m

$440

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Mon 4/14

1:10 pm-12:35 pm

2 stops32h 25m

Portland

Sun 4/27

7:25 pm-11:40 pm

1 stop19h 15m

$449

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Fri 4/25

6:35 am-1:59 pm

3 stops40h 24m

Seattle/Tacoma Intl

Wed 4/30

3:35 pm-2:45 pm

2 stops38h 10m

$463

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Mon 4/14

6:30 am-11:20 am

1 stop13h 50m

Portland

Sun 4/27

1:15 pm-8:45 am

1 stop34h 30m

$516

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 44 results
1
2
3
...
5

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.

Travel insights for flights from Oslo to Washington

Get recent, data-driven insights about flights from Oslo to Washington including ideal travel times, pricing trends, and more.

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 July is currently the most expensive (average of $411). 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 February 22, 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.

Rainfall in Washington by month

Plan your trip to Washington by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

Plan your trip to Washington by taking into account the average temperature totals by month.

If weather is an important factor for your trip to State of Washington, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 February 22, 2025.
See what other customers who have flown with Delta, KLM and Finnair from Oslo to Washington have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,203 reviews

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,203 reviews
Delta
8.0
Very good
8,203 reviews

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,332 reviews
Delta
8.0
Very good
8,203 reviews

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,271 reviews
Delta
8.0
Very good
8,203 reviews

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Cathay Pacific
7.5
Good
821 reviews
Delta
8.0
Very good
8,203 reviews

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France
7.4
Good
1,448 reviews
Delta
8.0
Very good
8,203 reviews

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • 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 $396. Icelandair flights start at $450 while deals on Lufthansa start at $487 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 July is currently the most expensive (average of $411). 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

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 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
Oslo Gardermoen to Stewart flights
Sandefjord to John F Kennedy Intl flights
Oslo Gardermoen to Miami flights
Oslo Gardermoen to Fort Lauderdale flights
Oslo Gardermoen to Los Angeles flights
Oslo Gardermoen to West Palm Beach flights
Sandefjord to Newark flights
Oslo Gardermoen to O'Hare Intl flights
Oslo Gardermoen to Hobby flights
Oslo Gardermoen to Orlando flights
Oslo Gardermoen to Las Vegas flights
Oslo Gardermoen to Dallas/Fort Worth flights
Oslo Gardermoen to Seattle flights
Sandefjord to Los Angeles flights
Oslo Gardermoen to San Francisco flights
Oslo Gardermoen to Dulles Intl flights
Bergen to Newark flights
Bergen to John F Kennedy Intl flights
Oslo Gardermoen to Baltimore flights
Oslo Gardermoen to George Bush Intcntl flights
Oslo Gardermoen to Honolulu flights
Oslo Gardermoen to Detroit flights
Oslo Gardermoen to Reagan-National flights
Oslo Gardermoen to Denver flights
Oslo Gardermoen to Austin flights
Stavanger to John F Kennedy Intl flights
Sandefjord to Seattle flights
Sandefjord to Las Vegas flights
Stavanger to Newark flights
Oslo Gardermoen to Minneapolis flights
Bergen to Las Vegas flights
Sandefjord to Boston flights
Oslo Gardermoen to Salt Lake City flights
Sandefjord to San Francisco flights
Oslo Gardermoen to Flint flights
Oslo Gardermoen to Boston flights
Bergen to Stewart flights
Oslo Gardermoen to Nashville flights
Oslo Gardermoen to Tampa flights

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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$382Average$567FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$395Average$561FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$416Average$608FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$419Average$675FlexibilityNo cancel feeOn-time70%
DeltaCheapest$452Average$619FlexibilityNo cancel feeOn-timeN/A
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.