Seattle

$374+ Cheap flights from Oslo Gardermoen (OSL) to Seattle (SEA)

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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
OSL ā€” SEA
Feb 11 ā€” Feb 181
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Oslo Gardermoen to Seattle 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 ā€œFind dealsā€
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 providerā€™s pricing and select the best option for you! Book through your favorite providerā€™s website for a seamless experience.

The best prices from Oslo Gardermoen to Seattle/Tacoma Intl are usually found in October or November, booked 59 days in advance, depart on a Saturday or Friday and return on a Tuesday

Cheap flight deals from Oslo Gardermoen to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Oslo Gardermoen (OSL) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 6, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$374
(Ticket)

Popular in

July

Cheapest in

October

Average price

$490
Provider with most accurate pricing for Oslo Gardermoen-Seattle/Tacoma Intl flight deals.
Provider most trusted by Cheapflights users for Oslo Gardermoen-Seattle/Tacoma Intl flights.
From Oslo Gardermoen to Seattle/Tacoma Intl
Highest demand for flights based on searches. 21% potential increase in price ($154 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Average for round-trip flights in February 2025

Find flight deals from Oslo Gardermoen to Seattle

Cheapest flights from Oslo Gardermoen to Seattle
Explore the most affordable flight options available from Oslo Gardermoen to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 6, 2025.

This Ticket deal was found by Cheapflights users on 2/6. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure Ticket is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Mon 3/31:10 pmOSL - SEA
1 stop12h 50mIcelandair
Mon 3/173:35 pmSEA - OSL
1 stop12h 00mIcelandair
Deal found 2/6$374
This Ticket deal was found by Cheapflights users on 2/6. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure Ticket is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Mon 3/32:30 pmOSL - SEA
1 stop29h 50mBritish Airways
Mon 3/171:25 pmSEA - OSL
2 stops25h 15mBritish Airways
Deal found 2/6$423
This American Airlines deal was found by Cheapflights users on 2/6. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure American Airlines is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Sat 4/265:10 pmOSL - SEA
1 stop27h 20mMultiple Airlines
Sun 5/118:20 pmSEA - OSL
1 stop29h 05mMultiple Airlines
Deal found 2/6$440
This American Airlines deal was found by Cheapflights users on 2/6. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure American Airlines is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Mon 3/37:15 amOSL - SEA
1 stop18h 40mAmerican Airlines
Mon 3/177:50 pmSEA - OSL
1 stop18h 50mAmerican Airlines
Deal found 2/6$443
This United Airlines deal was found by Cheapflights users on 2/6. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure United Airlines is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Mon 3/36:20 amOSL - SEA
1 stop14h 50mUnited Airlines
Mon 3/173:00 pmSEA - OSL
1 stop16h 20mUnited Airlines
Deal found 2/6$457
This Delta deal was found by Cheapflights users on 2/6. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure Delta is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Thu 7/36:30 amOSL - SEA
2 stops18h 15mDelta
Wed 11/193:25 pmSEA - OSL
2 stops17h 55mDelta
Deal found 2/6$633
This Lufthansa deal was found by Cheapflights users on 2/6. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure Lufthansa is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Sat 7/56:45 pmOSL - SEA
1 stop26h 10mLufthansa
Sun 11/233:10 pmSEA - OSL
1 stop23h 20mLufthansa
Deal found 2/6$700
This Finnair deal was found by Cheapflights users on 2/6. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure Finnair is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Wed 7/167:40 amOSL - SEA
2 stops24h 10mFinnair
Sat 8/25:40 pmSEA - OSL
1 stop17h 25mFinnair
Deal found 2/6$852
This Justfly.com deal was found by Cheapflights users on 2/6. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure Justfly.com is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Sun 7/66:50 amOSL - SEA
2 stops16h 26mAir Canada
Sat 11/2210:35 amSEA - OSL
2 stops17h 10mAir Canada
Deal found 2/6$1,181
This TAP AIR PORTUGAL deal was found by Cheapflights users on 2/6. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure TAP AIR PORTUGAL is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Mon 3/36:45 pmOSL - SEA
2 stops36h 32mTAP AIR PORTUGAL
Mon 3/1711:48 pmSEA - OSL
3 stops31h 37mTAP AIR PORTUGAL
Deal found 2/6$1,193
This Justfly.com deal was found by Cheapflights users on 2/6. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure Justfly.com is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Sat 7/56:45 amOSL - SEA
2 stops23h 03mBrussels Airlines
Sat 11/228:00 amSEA - OSL
2 stops24h 10mBrussels Airlines
Deal found 2/6$1,252

Find flights from Oslo Gardermoen to Seattle within your budget

Customize your flight search to find flights from Oslo Gardermoen to Seattle 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 6, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 3/3

1:10 pm-5:00 pm

1 stop12h 50m

Seattle/Tacoma Intl

Mon 3/17

3:35 pm-11:35 am

1 stop12h 00m

$374

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 3/3

2:30 pm-11:20 am

1 stop29h 50m

Seattle/Tacoma Intl

Mon 3/17

1:25 pm-10:40 pm

2 stops25h 15m

$423

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sat 4/26

5:10 pm-11:30 am

1 stop27h 20m

Seattle/Tacoma Intl

Sun 5/11

8:20 pm-10:25 am

1 stop29h 05m

$440

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 3/3

7:15 am-4:55 pm

1 stop18h 40m

Seattle/Tacoma Intl

Mon 3/17

7:50 pm-10:40 pm

1 stop18h 50m

$443

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 3/3

6:20 am-12:10 pm

1 stop14h 50m

Seattle/Tacoma Intl

Mon 3/17

3:00 pm-3:20 pm

1 stop16h 20m

$457

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Thu 7/3

6:30 am-3:45 pm

2 stops18h 15m

Seattle/Tacoma Intl

Wed 11/19

3:25 pm-6:20 pm

2 stops17h 55m

$633

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sat 7/5

6:45 pm-11:55 am

1 stop26h 10m

Seattle/Tacoma Intl

Sun 11/23

3:10 pm-11:30 pm

1 stop23h 20m

$700

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Wed 7/16

7:40 am-10:50 pm

2 stops24h 10m

Seattle/Tacoma Intl

Sat 8/2

5:40 pm-8:05 pm

1 stop17h 25m

$852

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sun 7/6

6:50 am-2:16 pm

2 stops16h 26m

Seattle/Tacoma Intl

Sat 11/22

10:35 am-12:45 pm

2 stops17h 10m

$1,181

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Mon 3/3

6:45 pm-10:17 pm

2 stops36h 32m

Seattle/Tacoma Intl

Mon 3/17

11:48 pm-3:25 pm

3 stops31h 37m

$1,193

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/6

Showing 1-10 of 17 results
1
2

Compare providers for flights from Oslo Gardermoen to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Oslo Gardermoen to Seattle in February.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Oslo Gardermoen Airport-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Oslo Gardermoen Airport-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Oslo Gardermoen Airport-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Oslo Gardermoen Airport-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Oslo Gardermoen Airport-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Oslo Gardermoen to Seattle

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

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

How far ahead should I book a flight from Oslo Gardermoen Airport to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Oslo Gardermoen to Seattle. Price data was last updated on January 31, 2025.

Booking 59 days in advance of your planned departure date is, on average, the best time to get cheap flights from Oslo Gardermoen Airport to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Oslo Gardermoen Airport to Seattle?

Currently, January is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Seattle (average of $238). Flying from Oslo Gardermoen Airport to Seattle 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 SEA?

Find hourly flight availability from Oslo Gardermoen to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 6, 2025.

Itā€™s typically best to fly out from Oslo Gardermoen Airport to Seattle at noon. Doing so could potentially save you 20% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Seattle by month

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

In terms of precipitation, rainfall in Seattle 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 Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

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

If weather is an important factor for your trip to Seattle, 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 Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated February 6, 2025.
8.0
Very good

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Overall

8.0

Crew

8.5

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

8.0
Very good
8.0
Very good

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Overall

8.0

Crew

8.5

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

8.0
Very good

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Overall

8.0

Crew

8.5

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

8.0
Very good

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Overall

8.0

Crew

8.5

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

8.0
Very good

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Overall

8.0

Crew

8.5

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

8.0
Very good

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Overall

8.0

Crew

8.5

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 Gardermoen to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Seattle from Oslo Gardermoen?

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Oslo Gardermoen to Seattle. You should not have trouble finding flights to Seattle/Tacoma Intl from Oslo Gardermoen; the airport handles an average of 0 inbound flights from Oslo Gardermoen per day. You should also have plenty of airline options to choose from since 5 airlines have flights to the Seattle airport from Oslo Gardermoen. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattleā€™s city center.

  • What are the cheapest airlines flying from Oslo Gardermoen Airport to Seattle round-trip?

    Flying on Icelandair is currently your cheapest option to Seattle, with prices starting at $374. Additional round-trip tickets that might be worth considering are offered by British Airways and American Airlines, with the lowest prices starting at $423 and $443, respectively. Users have found that Icelandair is 33% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Oslo Gardermoen Airport to Seattle one-way?

    The cheapest airlines for a one-way flight from Oslo Gardermoen Airport to Seattle are Icelandair ($426), Lufthansa ($495), and Iberia ($647).

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

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

  • How can I find direct flights from Oslo Gardermoen to Seattle?

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

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

    Yes. Cheapflights offers flight deals from Oslo Gardermoen to Seattle 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 Gardermoen Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Seattle (average of $238). Flying from Oslo Gardermoen Airport to Seattle 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

Traveling to a place near Oslo Gardermoen Airport?

Book flights to Oslo Gardermoen Airport if you plan to visit one of these locations
SeaTac
Tukwila
Renton
Tacoma
Lacey
Federal Way
Ocean Shores
Leavenworth
Olympia
Centralia
Cle Elum
Marysville
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

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 Gardermoen to Seattle

See prices for flight routes from nearby airports that may be better suited for you.