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$348+ 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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — OSL
dic. 20 — dic. 271
sáb. 12/20
sáb. 12/27
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Oslo are usually found in January or November, booked 76 days in advance, depart on a Tuesday or Monday and return on a Saturday

Find 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 noviembre 20, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/2810:05 amSEA - OSL
2 stops22h 35mLufthansa
mar. 12/96:15 amOSL - SEA
1 stop14h 55mLufthansa
Deal found 11/17$455
This Mytrip deal was found by Cheapflights users on 11/17. 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.
vie. 11/2810:05 amSEA - OSL
2 stops22h 35mMultiple Airlines
mar. 12/96:15 amOSL - SEA
2 stops25h 01mMultiple Airlines
Deal found 11/17$500
This FlightHub deal was found by Cheapflights users on 11/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/510:05 amSEA - OSL
2 stops22h 35mLufthansa
jue. 12/116:15 amOSL - SEA
1 stop14h 55mLufthansa
Deal found 11/20$506
This FlightHub deal was found by Cheapflights users on 11/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/43:40 pmSEA - OSL
2 stops41h 00mMultiple Airlines
lun. 12/156:45 amOSL - SEA
2 stops23h 09mMultiple Airlines
Deal found 11/20$513
This KAYAK deal was found by Cheapflights users on 11/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/43:40 pmSEA - OSL
2 stops41h 00mLufthansa
jue. 12/116:15 amOSL - SEA
1 stop14h 55mLufthansa
Deal found 11/20$520
This Air Canada deal was found by Cheapflights users on 11/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/48:00 pmSEA - OSL
2 stops36h 40mAir Canada
jue. 12/116:15 amOSL - SEA
2 stops25h 01mAir Canada
Deal found 11/20$522
This FlightHub deal was found by Cheapflights users on 11/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/43:40 pmSEA - OSL
2 stops41h 00mLufthansa
lun. 12/156:15 pmOSL - SEA
1 stop26h 55mLufthansa
Deal found 11/20$525
This United Airlines deal was found by Cheapflights users on 11/20. 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.
vie. 12/512:36 pmSEA - OSL
2 stops20h 04mUnited Airlines
dom. 12/146:05 amOSL - SEA
2 stops35h 19mUnited Airlines
Deal found 11/20$530
This KAYAK deal was found by Cheapflights users on 11/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/37:20 amSEA - TRF
2 stops21h 45mScandinavian Airlines
lun. 12/152:35 pmTRF - SEA
2 stops28h 44mScandinavian Airlines
Deal found 11/20$774
This KAYAK deal was found by Cheapflights users on 11/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/257:10 amSEA - TRF
2 stops21h 55mScandinavian Airlines
dom. 12/281:30 pmTRF - SEA
2 stops41h 20mScandinavian Airlines
Deal found 11/20$1,290
This KAYAK deal was found by Cheapflights users on 11/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/267:10 amSEA - TRF
2 stops21h 35mScandinavian Airlines
dom. 12/281:30 pmTRF - SEA
2 stops41h 20mScandinavian Airlines
Deal found 11/20$1,303
This Mytrip deal was found by Cheapflights users on 11/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/128:05 pmSEA - TRF
2 stops15h 20mMultiple Airlines
lun. 12/152:35 pmTRF - SEA
3 stops35h 30mMultiple Airlines
Deal found 11/18$1,367

Cheap 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 noviembre 20, 2025.

Round-trip from

$370
(Sembo)

One-way from

$348
(Thrive Travel)

Popular in

June

Cheapest in

January

Average price

$483
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. 19% potential increase in price ($145 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 noviembre 20, 2025.
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

vie. 2/6

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

dom. 2/15

9:30 pm-5:00 pm

1 stop28h 30m

$393

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

lun. 2/23

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

vie. 2/27

1:10 pm-5:00 pm

1 stop12h 50m

$456

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

lun. 4/6

7:20 am-11:05 am

2 stops18h 45m

Oslo Gardermoen

jue. 5/7

1:05 pm-10:16 pm

1 stop18h 11m

$475

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

mar. 3/17

1:40 pm-4:40 pm

2 stops19h 00m

Oslo Gardermoen

mié. 4/8

1:05 pm-10:16 pm

1 stop18h 11m

$486

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

mié. 4/1

1:48 pm-4:35 pm

2 stops17h 47m

Oslo Gardermoen

mié. 5/6

8:35 am-11:05 pm

2 stops23h 30m

$492

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

lun. 4/6

1:48 pm-4:35 pm

2 stops17h 47m

Oslo Gardermoen

jue. 5/7

12:50 pm-11:05 pm

2 stops19h 15m

$492

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

dom. 5/10

5:40 pm-7:45 pm

1 stop17h 05m

Oslo Gardermoen

vie. 5/29

8:35 am-4:00 pm

1 stop16h 25m

$505

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

jue. 2/19

8:00 am-1:50 pm

2 stops20h 50m

Oslo Gardermoen

jue. 2/26

6:30 am-11:40 am

1 stop14h 10m

$506

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

vie. 2/6

2:02 pm-6:45 pm

2 stops19h 43m

Oslo Gardermoen

dom. 2/15

10:00 am-10:25 pm

2 stops21h 25m

$508

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

lun. 3/9

7:20 am-9:50 am

2 stops18h 30m

Oslo Gardermoen

lun. 3/16

9:00 am-10:16 pm

2 stops21h 16m

$509

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Showing 1-10 of 30 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 November 14, 2025.

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 $338). 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.

What is the cheapest time of day to fly from SEA to OSL?

Find hourly flight availability from Seattle to Oslo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 20, 2025.

It’s optimal to fly from Seattle to Oslo in the evening. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Seattle to Oslo?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Oslo. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Oslo flight should consider departing on Saturday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 noviembre 20, 2025.
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
8,002 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

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
8,002 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

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
7.4
Good
1,584 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

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
7.0
Good
581 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

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
7,579 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

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
7,533 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

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, Scandinavian Airlines, and Finnair can get you from Seattle to Oslo in just under 12h. Your travel time can differ by up to 6h 45m. 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 ($368), Icelandair ($403), and Delta ($468) offers the cheapest pricing from Seattle to Oslo. British Airways is 37% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 $338). 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 noviembre 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$368Average$628FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$403Average$554FlexibilityNo cancel feeOn-time76%
DeltaCheapest$468Average$738FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$491Average$754FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$494Average$718FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$517Average$840FlexibilityNo cancel feeOn-time69%
KLMCheapest$524Average$763FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$551Average$746FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$552Average$615FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$564Average$673FlexibilityNo cancel feeOn-time71%

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