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Oslo

$233+ Cheap flights from Seattle (SEA) to Oslo

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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OSL
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap flight deals from Seattle to Oslo

Cheapest flights from Seattle to Oslo
Explore the most affordable flight options available from Seattle to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This Sembo deal was found by Cheapflights users on 1/19. 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.
Mon 2/22:35 pm
SEA
-
OSL
1 stop12h 00m
Icelandair
Sun 2/159:30 pm
OSL
-
SEA
1 stop28h 30m
Icelandair
Deal found 1/19$376
This oojo deal was found by Cheapflights users on 1/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/22:35 pm
SEA
-
OSL
1 stop12h 00m
Icelandair
Tue 3/171:10 pm
OSL
-
SEA
1 stop12h 50m
Icelandair
Deal found 1/19$395
This FlightHub deal was found by Cheapflights users on 1/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/232:35 pm
SEA
-
OSL
1 stop12h 00m
Icelandair
Sun 3/19:30 pm
OSL
-
SEA
1 stop28h 30m
Icelandair
Deal found 1/21$401
This oojo deal was found by Cheapflights users on 1/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/157:00 pm
SEA
-
OSL
1 stop11h 25m
Icelandair
Mon 5/254:30 pm
OSL
-
SEA
1 stop13h 10m
Icelandair
Deal found 1/19$410
This oojo deal was found by Cheapflights users on 1/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/83:40 pm
SEA
-
OSL
1 stop14h 45m
Icelandair
Fri 5/224:30 pm
OSL
-
SEA
1 stop13h 10m
Icelandair
Deal found 1/21$411
This oojo deal was found by Cheapflights users on 1/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/157:00 pm
SEA
-
OSL
1 stop11h 25m
Icelandair
Sun 5/244:30 pm
OSL
-
SEA
1 stop28h 15m
Icelandair
Deal found 1/20$412
This Kiwi.com deal was found by Cheapflights users on 1/19. 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.
Wed 3/253:35 pm
SEA
-
OSL
1 stop12h 00m
Icelandair
Tue 3/314:30 pm
OSL
-
SEA
1 stop13h 10m
Icelandair
Deal found 1/19$420
This KAYAK deal was found by Cheapflights users on 1/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/242:35 pm
SEA
-
OSL
1 stop12h 00m
Icelandair
Sun 3/19:30 pm
OSL
-
SEA
1 stop28h 30m
Icelandair
Deal found 1/21$424
This Kiwi.com deal was found by Cheapflights users on 1/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:00 pm
SEA
-
OSL
1 stop32h 35m
Icelandair
Mon 5/254:30 pm
OSL
-
SEA
1 stop34h 25m
Icelandair
Deal found 1/21$440
This British Airways deal was found by Cheapflights users on 1/19. 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.
Mon 3/231:37 pm
SEA
-
OSL
2 stops25h 03m
British Airways
Tue 3/315:45 pm
OSL
-
SEA
1 stop26h 50m
British Airways
Deal found 1/19$455
This oojo deal was found by Cheapflights users on 1/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/42:35 pm
SEA
-
OSL
1 stop12h 00m
Icelandair
Wed 2/111:10 pm
OSL
-
SEA
1 stop12h 50m
Icelandair
Deal found 1/20$457
This oojo deal was found by Cheapflights users on 1/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/21:37 pm
SEA
-
OSL
2 stops24h 03m
British Airways
Tue 3/177:20 am
OSL
-
SEA
1 stop18h 35m
British Airways
Deal found 1/19$460

Find flight deals from Seattle to Oslo

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Oslo (OS1). 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 January 21, 2026.

Round-trip from

$376
(Sembo)

One-way from

$233
(Delta)

Popular in

June

Cheapest in

January

Average price

$422
From Seattle/Tacoma Intl to Oslo
Search Deals
One-way flight from Seattle/Tacoma Intl to Oslo
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($124 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($24 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 Seattle to Oslo 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 21, 2026.
Use the filters below to find and compare flights from Seattle to Oslo that are best for you.

Fly from

Seattle

Fly to

Oslo

Route

Depart

Return

Price

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 3/2

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Tue 3/17

1:10 pm-6:00 pm

1 stop12h 50m

$395

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 3/25

1:54 pm-10:40 pm

2 stops24h 46m

Oslo Gardermoen

Tue 3/31

7:30 pm-11:35 am

1 stop25h 05m

$455

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 2/4

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Wed 2/11

1:10 pm-5:00 pm

1 stop12h 50m

$457

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 3/24

2:25 pm-10:40 pm

1 stop24h 15m

Oslo Gardermoen

Wed 4/1

7:45 am-12:24 am

2 stops25h 39m

$460

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 3/10

1:37 pm-10:55 am

2 stops37h 18m

Oslo Gardermoen

Wed 3/18

6:55 am-12:24 am

2 stops25h 29m

$463

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 3/2

6:44 am-11:55 pm

2 stops32h 11m

Oslo Gardermoen

Tue 3/17

6:25 am-9:16 pm

2 stops22h 51m

$479

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 3/25

1:32 pm-6:50 pm

2 stops21h 18m

Oslo Gardermoen

Fri 4/3

6:30 am-4:30 pm

1 stop19h 00m

$508

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 3/23

1:45 pm-6:50 pm

2 stops21h 05m

Oslo Gardermoen

Thu 4/2

9:20 am-4:30 pm

1 stop16h 10m

$508

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 3/27

4:10 pm-5:40 pm

1 stop17h 30m

Oslo Gardermoen

Fri 4/3

11:45 am-4:59 pm

1 stop14h 14m

$511

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Thu 2/26

3:05 pm-4:15 pm

1 stop16h 10m

Oslo Gardermoen

Wed 3/4

6:30 am-11:35 am

1 stop14h 05m

$518

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 37 results
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Best time to book a flight from Seattle to Oslo

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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Oslo. Price data was last updated on January 16, 2026.

The price you pay for your flight from Seattle to Oslo may vary depending on when you book. For the best chance of a lower fare, look to book 76 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Seattle to Oslo (average of $340). Flying from Seattle to Oslo in June is currently the most expensive (average of $537). 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.

Reviews of airlines servicing Oslo

Get insights into the airlines that provide service to Oslo. 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 Oslo. Reviews last updated January 21, 2026.
See what other customers who have flown with Delta, Scandinavian Airlines, and Icelandair from Seattle to Oslo have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,088 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

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
8,088 reviews
Delta
7.9
Good
8,088 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

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
1,660 reviews
Delta
7.9
Good
8,088 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

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
602 reviews
Delta
7.9
Good
8,088 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

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
7,738 reviews
Delta
7.9
Good
8,088 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

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.
British Airways
6.7
Okay
7,689 reviews
Delta
7.9
Good
8,088 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

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 Seattle to Oslo. 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 from for flights from Seattle to Oslo?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Oslo. You should not have trouble finding flights to Oslo from Seattle/Tacoma Intl; the airport handles an average of 0 outbound flights to Oslo per day. You should also have plenty of airline options to choose from since 10 airlines have flights from the Seattle airport to Oslo. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

  • How long is the flight from Seattle to Oslo?

    Icelandair, British Airways, and Scandinavian Airlines can get you from Seattle to Oslo in just under 12h. Your travel time can differ by up to 28h 35m. The distance from Seattle to Oslo is about 4551 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    According to our current data, British Airways ($353), Icelandair ($400), and Delta ($468) offers the cheapest pricing from Seattle to Oslo. British Airways is 39% cheaper than the average price of flights available within the next 90 days to this destination.

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

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at $188. Scandinavian Airlines flights start at $287 while deals on British Airways start at $337 one-way.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Seattle to Oslo (average of $340). Flying from Seattle to Oslo in June is currently the most expensive (average of $537). 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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Top 10 airlines flying from Seattle to Oslo

Discover the top 10 airlines that operate flights from Seattle to Oslo. 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 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$353Average$574FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$400Average$539FlexibilityNo cancel feeOn-time76%
DeltaCheapest$468Average$744FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$488Average$673FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$492Average$693FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$518Average$748FlexibilityNo cancel feeOn-time69%
KLMCheapest$524Average$698FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$526Average$590FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$538Average$713FlexibilityNo cancel feeOn-time76%
FinnairCheapest$569Average$766FlexibilityNo cancel feeOn-time76%

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