What is the cheapest airline that flies from Seattle/Tacoma Intl to Oslo?

Scandinavian Airlines and Icelandair are the most popular carriers operating from Seattle/Tacoma Intl to Oslo

What airlines fly to Oslo?

Icelandair, Scandinavian Airlines and Delta are the top three most popular airlines that fly to Oslo from Seattle according to our data. Icelandair is the first choice among our users, with 63% of people opting to fly with this airline when traveling to Oslo. Keep in mind that there are 7 different airlines that fly to Oslo on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Oslo?

Prices for flights from Seattle/Tacoma Intl Airport to Oslo are refreshed on a daily basis.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Oslo?

The number of operators available for flights from Seattle/Tacoma Intl Airport to Oslo is 7 as of August 2026.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Oslo?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Oslo.

What documentation or ID do you need to fly to Oslo?

The travel and health documents you'll need for your trip to Oslo may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Oslo. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$199 Cheap Flights from Seattle to Oslo in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Oslo

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

3:55 pm - 2:30 pmSEA Seattle/Tacoma Intl-TRF Oslo Sandefjord

13h 35m1 stop Kastrup Copenhagen

6:00 am - 1:45 pmTRF Oslo Sandefjord-SEA Seattle/Tacoma Intl

16h 45m1 stop Kastrup Copenhagen

$406Scandinavian Airlines

Sun, Oct 4 - Fri, Oct 9

3:55 pm - 2:05 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

13h 10m1 stop Kastrup Copenhagen

9:00 am - 1:45 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

13h 45m1 stop Kastrup Copenhagen

$408Scandinavian Airlines

Sun, Oct 4 - Fri, Oct 9

7:00 pm - 3:25 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

11h 25m1 stop Reykjavik Keflavik Intl

9:30 pm - 5:00 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

28h 30m1 stop Reykjavik Keflavik Intl

$422Icelandair

Thu, Oct 22 - Thu, Nov 5

7:00 pm - 3:25 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

11h 25m1 stop Reykjavik Keflavik Intl

1:50 pm - 5:55 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

13h 05m1 stop Reykjavik Keflavik Intl

$442Icelandair

Thu, Oct 8 - Wed, Oct 21

10:10 am - 5:40 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

22h 30m2 stops Vancouver Intl Munich Franz Josef Strauss

6:15 am - 6:22 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

21h 07m2 stops Frankfurt am Main Vancouver Intl

$470Air Canada

Thu, Nov 26 - Sun, Dec 6

3:00 pm - 6:00 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

18h 00m2 stops Vancouver Intl Munich Franz Josef Strauss

7:10 am - 10:47 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

24h 37m2 stops Munich Franz Josef Strauss Vancouver Intl

$470Air Canada

Tue, Oct 13 - Tue, Oct 20

2:50 pm - 5:40 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

17h 50m1 stop Munich Franz Josef Strauss

6:15 am - 12:00 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

14h 45m1 stop Frankfurt am Main

$497Lufthansa

Sun, Nov 8 - Sun, Nov 15

6:50 pm - 6:00 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

14h 10m1 stop Munich Franz Josef Strauss

7:10 am - 4:59 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

18h 49m1 stop Munich Franz Josef Strauss

$500Lufthansa

Tue, Oct 13 - Tue, Oct 20

6:50 pm - 10:05 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

18h 15m1 stop Munich Franz Josef Strauss

7:10 am - 4:59 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

18h 49m1 stop Munich Franz Josef Strauss

$502United Airlines

Sun, Oct 11 - Sun, Oct 18

8:09 am - 11:00 amSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

17h 51m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

6:15 am - 12:00 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

14h 45m1 stop Frankfurt am Main

$504United Airlines

Fri, Nov 6 - Sat, Nov 14

Cheap last minute flights

Enter your travel dates to find the best prices.

2:10 pm - 12:15 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

13h 05m1 stop Frankfurt am Main

4:00 pm - 8:18 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

37h 18m2 stops Vienna Intl Washington, D.C. Dulles Intl

$525Multiple Airlines

Tue, Sep 1 - Wed, Sep 9

6:50 pm - 10:05 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

18h 15m1 stop Munich Franz Josef Strauss

7:10 am - 4:59 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

18h 49m1 stop Munich Franz Josef Strauss

$623Lufthansa

Tue, Sep 1 - Wed, Sep 9

6:50 pm - 10:05 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

18h 15m1 stop Munich Franz Josef Strauss

7:10 am - 4:59 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

18h 49m1 stop Munich Franz Josef Strauss

$626United Airlines

Sat, Sep 5 - Thu, Oct 8

6:50 pm - 10:05 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

18h 15m1 stop Munich Franz Josef Strauss

7:15 am - 4:59 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

18h 44m1 stop Munich Franz Josef Strauss

$626United Airlines

Sat, Sep 5 - Sat, Oct 10

6:50 pm - 10:05 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

18h 15m1 stop Munich Franz Josef Strauss

4:00 pm - 8:18 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

37h 18m2 stops Vienna Intl Washington, D.C. Dulles Intl

$627Multiple Airlines

Tue, Sep 1 - Wed, Sep 9

6:50 pm - 5:55 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

14h 05m1 stop Munich Franz Josef Strauss

6:45 pm - 4:59 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

31h 14m1 stop Munich Franz Josef Strauss

$636Lufthansa

Sat, Sep 5 - Thu, Sep 10

1:50 pm - 1:40 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

14h 50m1 stop Amsterdam Schiphol

9:20 am - 4:35 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

16h 15m1 stop Amsterdam Schiphol

$665KLM

Tue, Sep 1 - Wed, Sep 9

5:45 pm - 8:55 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

18h 10m1 stop Amsterdam Schiphol

7:15 pm - 11:47 amOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

25h 32m1 stop Amsterdam Schiphol

$674KLM

Thu, Sep 3 - Fri, Sep 18

1:50 pm - 1:40 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

14h 50m1 stop Amsterdam Schiphol

6:30 am - 4:50 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

19h 20m2 stops Amsterdam Schiphol Salt Lake City

$675Delta

Tue, Sep 1 - Wed, Sep 9

6:05 am - 11:05 amSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

20h 00m2 stops Minneapolis St Paul Amsterdam Schiphol

11:50 am - 11:20 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

20h 30m2 stops Amsterdam Schiphol New York John F Kennedy Intl

$680Delta

Tue, Sep 1 - Wed, Sep 9

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Air Canada flights from Seattle to Oslo

Our best Air Canada deals on Seattle to Oslo flight tickets

Air Canada

Oct 13

SEA3:00 pmSeattle/Tacoma Intl

18h 00m

2 stops

OSL6:00 pmOslo Gardermoen

Oct 20

OSL7:10 amOslo Gardermoen

24h 37m

2 stops

SEA10:47 pmSeattle/Tacoma Intl

$470

Air Canada

Oct 14

SEA8:00 amSeattle/Tacoma Intl

18h 35m

2 stops

OSL11:35 amOslo Gardermoen

Oct 19

OSL7:10 amOslo Gardermoen

35h 55m

2 stops

SEA10:05 amSeattle/Tacoma Intl

$514

Air Canada

Oct 14

SEA8:00 amSeattle/Tacoma Intl

18h 35m

2 stops

OSL11:35 amOslo Gardermoen

Oct 18

OSL6:25 amOslo Gardermoen

25h 22m

2 stops

SEA10:47 pmSeattle/Tacoma Intl

$522

United Airlines flights from Seattle to Oslo

Our best United Airlines deals on Seattle to Oslo flight tickets

United Airlines

Oct 11

SEA6:50 pmSeattle/Tacoma Intl

18h 15m

1 stop

OSL10:05 pmOslo Gardermoen

Oct 18

OSL7:10 amOslo Gardermoen

18h 49m

1 stop

SEA4:59 pmSeattle/Tacoma Intl

$502

United Airlines

Nov 2

SEA8:09 amSeattle/Tacoma Intl

24h 01m

2 stops

OSL5:10 pmOslo Gardermoen

Nov 9

OSL6:15 amOslo Gardermoen

14h 45m

1 stop

SEA12:00 pmSeattle/Tacoma Intl

$507

United Airlines

Nov 3

SEA8:09 amSeattle/Tacoma Intl

17h 51m

2 stops

OSL11:00 amOslo Gardermoen

Nov 9

OSL6:45 amOslo Gardermoen

21h 18m

2 stops

SEA7:03 pmSeattle/Tacoma Intl

$508

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleOslo

SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord

SEATRF

Seattle/Tacoma Intl

Sun 10/4

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Fri 10/9

6:00 am-1:45 pm

1 stop16h 45m

$406

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Sun 10/4

3:55 pm-2:05 pm

1 stop13h 10m

Oslo Gardermoen

Fri 10/9

9:00 am-1:45 pm

1 stop13h 45m

$408

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Thu 10/22

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Thu 11/5

9:30 pm-5:00 pm

1 stop28h 30m

$422

Quickest round-trip

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Thu 10/8

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Wed 10/21

1:50 pm-5:55 pm

1 stop13h 05m

$442

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Thu 11/26

10:10 am-5:40 pm

2 stops22h 30m

Oslo Gardermoen

Sun 12/6

6:15 am-6:22 pm

2 stops21h 07m

$470

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Tue 10/13

3:00 pm-6:00 pm

2 stops18h 00m

Oslo Gardermoen

Tue 10/20

7:10 am-10:47 pm

2 stops24h 37m

$470

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Sun 11/8

2:50 pm-5:40 pm

1 stop17h 50m

Oslo Gardermoen

Sun 11/15

6:15 am-12:00 pm

1 stop14h 45m

$497

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Tue 10/13

6:50 pm-6:00 pm

1 stop14h 10m

Oslo Gardermoen

Tue 10/20

7:10 am-4:59 pm

1 stop18h 49m

$500

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Sun 10/11

6:50 pm-10:05 pm

1 stop18h 15m

Oslo Gardermoen

Sun 10/18

7:10 am-4:59 pm

1 stop18h 49m

$502

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Fri 11/6

8:09 am-11:00 am

2 stops17h 51m

Oslo Gardermoen

Sat 11/14

6:15 am-12:00 pm

1 stop14h 45m

$504

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to Oslo

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between Seattle and Oslo?

Prices are currently low for flights on this route.

Typical prices usually range from $495 to $670.
The lowest price recently found on this route was $406.

What is the cheapest month to fly to Oslo?

The month of January is, on average, the cheapest month to fly to Oslo from Seattle, with most prices found around $420. If you’re not able to fly to Oslo in January, then November is your next best option. Flight prices from Seattle to Oslo during November average around $481.

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

You are more likely to see cheaper flights to Oslo from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Oslo for around $577 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Oslo from Seattle for as low as $543 on momondo.

Cheap Seattle to Oslo flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Oslo

Best Price Found	$199
Fastest flight time	11h 25m
Direct flights	None

The best one-way flight to Oslo from Seattle in the past 72 hours is $199. The best round-trip flight deal from Seattle to Oslo found on momondo in the last 72 hours is $406.

The fastest flight from Seattle to Oslo takes 11h 25m

There are no direct flights from Seattle to Oslo. There are no popular flight routes from Seattle to Oslo.

Search flight deals

Frequently asked questions about flying from Seattle to Oslo

How far is Seattle/Tacoma Intl to Oslo by plane?
Seattle/Tacoma Intl and Oslo are 4550.6 mi apart from one another. A reasonable flight in good conditions will take 11h 25m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Oslo?
Prices for flights from Seattle/Tacoma Intl Airport to Oslo are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Oslo?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Oslo is 7 as of August 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Oslo?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Oslo.
What documentation or ID do you need to fly to Oslo?
The travel and health documents you'll need for your trip to Oslo may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Oslo. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Seattle to Oslo

Compare and see reviews for airlines that fly from Seattle to Oslo with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $351	Free Cancellation	Rating 6.7 8,198 reviews	Search British Airways flights
Icelandair	PriceFrom $393	Free Cancellation	Rating 6.9 738 reviews	Search Icelandair flights
Scandinavian Airlines	PriceFrom $426	Free Cancellation	Rating 7.4 1,969 reviews	Search Scandinavian Airlines flights
Delta	PriceFrom $468	Free Cancellation	Rating 7.8 8,533 reviews	Search Delta flights
United Airlines	PriceFrom $491	Free Cancellation	Rating 7.4 10,146 reviews	Search United Airlines flights
Lufthansa	PriceFrom $493	Free Cancellation	Rating 6.8 8,227 reviews	Search Lufthansa flights
KLM	PriceFrom $522	Free Cancellation	Rating 7.8 1,570 reviews	Search KLM flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Oslo?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Oslo from Seattle.

Can I find flights from Seattle to Oslo with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Oslo from Seattle with this policy.

How can momondo help me find flights from Seattle to Oslo?

Once all potential Seattle to Oslo flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seattle to Oslo right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Seattle to Oslo flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Oslo trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Norway

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Other flights from Seattle

Complete your trip

Feeling lucky

Fly into one of these airports located in Oslo

Oslo Gardermoen Airport

Oslo Sandefjord Airport

Cheap flights from Seattle to Oslo from $199

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Oslo departing on 10/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Seattle to Oslo

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Air Canada flights from Seattle to Oslo

Our best Air Canada deals on Seattle to Oslo flight tickets

United Airlines flights from Seattle to Oslo

Our best United Airlines deals on Seattle to Oslo flight tickets

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Use the filters below to find and compare flights from Seattle to Oslo that are best for you.

See travel insights to Oslo from

How to get the cheapest flight ticket from Seattle to Oslo

What is the typical price of a round-trip flight between Seattle and Oslo?

What is the cheapest month to fly to Oslo?

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

What is the cheapest airline that flies from Seattle/Tacoma Intl to Oslo?

What airlines fly to Oslo?

Cheap Seattle to Oslo flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Seattle to Oslo

Best airlines flying from Seattle to Oslo

Compare and see reviews for airlines that fly from Seattle to Oslo with momondo

Why use momondo?

An easier way to manage your Oslo trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Norway

Fly into one of these airports located in Oslo

Airports listed have a maximum distance of 53.1 mi from Oslo

Fly your favorite airline to Oslo

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Popular cities in Norway

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Seattle

According to popular flight searches on momondo this year

Complete your trip to Oslo

Explore popular destinations other users love

According to popular flight searches on momondo this year