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Oslo

$169+ 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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OSL
Apr 18 — Apr 251
Sat 4/18
Sat 4/25
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 March 19, 2026.

This Ticket deal was found by Cheapflights users on 3/14. 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 4/133:40 pm
SEA
-
OSL
1 stop11h 55m
Icelandair
Mon 4/271:50 pm
OSL
-
SEA
1 stop13h 05m
Icelandair
Deal found 3/14$362
This Sembo deal was found by Cheapflights users on 3/18. 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 4/133:40 pm
SEA
-
OSL
1 stop11h 55m
Icelandair
Sun 4/261:50 pm
OSL
-
SEA
1 stop15h 50m
Icelandair
Deal found 3/18$382
This oojo deal was found by Cheapflights users on 3/17. 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 4/157:00 pm
SEA
-
OSL
1 stop11h 25m
Icelandair
Wed 4/291:50 pm
OSL
-
SEA
1 stop15h 50m
Icelandair
Deal found 3/17$396
This oojo deal was found by Cheapflights users on 3/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/133:40 pm
SEA
-
OSL
1 stop11h 55m
Icelandair
Tue 4/281:50 pm
OSL
-
SEA
1 stop15h 50m
Icelandair
Deal found 3/14$397
This oojo deal was found by Cheapflights users on 3/16. 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.
Tue 4/147:00 pm
SEA
-
OSL
1 stop32h 35m
Icelandair
Tue 4/211:50 pm
OSL
-
SEA
1 stop15h 50m
Icelandair
Deal found 3/16$398
This FlightHub deal was found by Cheapflights users on 3/18. 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.
Tue 4/77:00 pm
SEA
-
OSL
1 stop32h 35m
Icelandair
Thu 4/231:50 pm
OSL
-
SEA
1 stop15h 50m
Icelandair
Deal found 3/18$403
This oojo deal was found by Cheapflights users on 3/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:00 pm
SEA
-
OSL
1 stop11h 25m
Icelandair
Wed 5/61:50 pm
OSL
-
SEA
1 stop15h 50m
Icelandair
Deal found 3/14$405
This oojo deal was found by Cheapflights users on 3/16. 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.
Thu 4/307:00 pm
SEA
-
OSL
1 stop32h 35m
Icelandair
Thu 5/74:30 pm
OSL
-
SEA
1 stop13h 10m
Icelandair
Deal found 3/16$414
This oojo deal was found by Cheapflights users on 3/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:00 pm
SEA
-
OSL
1 stop32h 35m
Icelandair
Sun 5/104:30 pm
OSL
-
SEA
1 stop34h 25m
Icelandair
Deal found 3/14$416
This oojo deal was found by Cheapflights users on 3/18. 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 4/67:00 pm
SEA
-
OSL
1 stop32h 35m
Icelandair
Wed 4/151:50 pm
OSL
-
SEA
1 stop13h 05m
Icelandair
Deal found 3/18$423
This oojo deal was found by Cheapflights users on 3/18. 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.
Sat 10/33:55 pm
SEA
-
TRF
1 stop13h 35m
Scandinavian Airlines
Sat 10/106:00 am
TRF
-
SEA
1 stop16h 45m
Scandinavian Airlines
Deal found 3/18$509
This Mytrip deal was found by Cheapflights users on 3/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:00 pm
SEA
-
TRF
2 stops20h 25m
Multiple Airlines
Wed 4/226:00 am
TRF
-
SEA
2 stops20h 55m
Multiple Airlines
Deal found 3/17$662

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 March 19, 2026.

Round-trip from

$362
(Ticket)

One-way from

$169
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$538
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. 15% potential increase in price ($98 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 19, 2026.
Use the filters below to find and compare flights from Seattle to Oslo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 4/22

6:00 am-11:05 am

2 stops20h 05m

Oslo Gardermoen

Wed 4/29

6:30 am-11:40 am

1 stop14h 10m

$478

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 4/14

7:15 am-11:05 am

2 stops18h 50m

Oslo Gardermoen

Tue 4/21

6:30 am-4:48 pm

2 stops19h 18m

$489
Quickest round-trip

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sat 4/25

7:15 am-11:05 am

2 stops18h 50m

Oslo Gardermoen

Wed 5/20

6:30 am-11:42 am

1 stop14h 12m

$503

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 4/14

7:15 am-11:05 am

2 stops18h 50m

Oslo Gardermoen

Sun 4/26

6:30 am-11:45 am

1 stop14h 15m

$528

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 5/3

7:15 am-11:05 am

2 stops18h 50m

Oslo Gardermoen

Sun 5/10

11:50 am-10:48 pm

2 stops19h 58m

$538

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 5/19

4:35 pm-8:40 pm

2 stops19h 05m

Oslo Gardermoen

Tue 5/26

6:30 am-4:01 pm

2 stops18h 31m

$575

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Thu 9/3

9:50 pm-8:40 pm

1 stop13h 50m

Oslo Gardermoen

Sat 9/12

11:50 am-10:05 pm

2 stops19h 15m

$577

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sat 9/12

11:56 pm-2:50 pm

2 stops29h 54m

Oslo Gardermoen

Sun 9/20

7:10 am-9:04 pm

2 stops22h 54m

$583

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 8/12

3:51 pm-10:05 pm

2 stops21h 14m

Oslo Gardermoen

Wed 8/19

7:10 am-9:56 pm

2 stops23h 46m

$587

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 6/14

3:55 pm-12:25 am

1 stop23h 30m

Oslo Sandefjord

Mon 6/22

8:55 pm-1:45 pm

1 stop25h 50m

$681

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/15

Showing 1-10 of 33 resultsSorted by cheapest first
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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 March 13, 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 87 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, April is the cheapest month in which you can book a flight from Seattle to Oslo (average of $321). Flying from Seattle to Oslo in June is currently the most expensive (average of $503). 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 March 19, 2026.
See what other customers who have flown with Delta,Scandinavian Airlines, andIcelandair 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
8,300 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

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
8,300 reviews
Delta
7.9
Good
8,300 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

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
1,720 reviews
Delta
7.9
Good
8,300 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

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
622 reviews
Delta
7.9
Good
8,300 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

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
7,857 reviews
Delta
7.9
Good
8,300 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

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
7,802 reviews
Delta
7.9
Good
8,300 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

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 8 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?

    Delta and Scandinavian Airlines can get you from Seattle to Oslo in just under 20h 05m. Your travel time can differ by up to 3h 25m. 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 ($390), and Delta ($468) offers the cheapest pricing from Seattle to Oslo. British Airways is 36% 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 $214 while deals on Delta start at $240 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, April is the cheapest month in which you can book a flight from Seattle to Oslo (average of $321). Flying from Seattle to Oslo in June is currently the most expensive (average of $503). 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

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Alternative routes for Seattle to Oslo

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Oslo Gardermoen flights
Seattle to Bodø flights
Portland to Stavanger flights
Seattle to Stavanger flights

Top 8 airlines flying from Seattle to Oslo

Discover the top 8 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 March 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$353Average$574FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$390Average$502FlexibilityNo cancel feeOn-time76%
DeltaCheapest$468Average$695FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$476Average$653FlexibilityNo cancel feeOn-time77%
FinnairCheapest$491Average$835FlexibilityNo cancel feeOn-time76%
KLMCheapest$506Average$669FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$515Average$632FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$520Average$664FlexibilityNo cancel feeOn-time76%

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