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

Delta is the most popular carrier 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 58% of people opting to fly with this airline when traveling to Oslo. Keep in mind that there are 8 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 8 as of October 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.

$232 Cheap Flights from Seattle to Oslo in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Oslo

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:35 pm - 11:35 amSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

12h 00m1 stop Reykjavik Keflavik Intl

1:10 pm - 5:00 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

12h 50m1 stop Reykjavik Keflavik Intl

$402Icelandair

Mon, Nov 23 - Tue, Dec 8

2:35 pm - 11:35 amSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

12h 00m1 stop Reykjavik Keflavik Intl

1:10 pm - 5:00 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

12h 50m1 stop Reykjavik Keflavik Intl

$414Icelandair

Mon, Nov 23 - Tue, Dec 8

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

14h 05m1 stop Munich Franz Josef Strauss

11:45 am - 9:58 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

19h 13m2 stops Munich Franz Josef Strauss Vancouver Intl

$475Multiple Airlines

Wed, Apr 14 - Wed, Apr 28

3:15 pm - 5:40 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

41h 25m2 stops Vancouver Intl Munich Franz Josef Strauss

6:15 am - 9:57 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

24h 42m2 stops Frankfurt am Main Vancouver Intl

$475Multiple Airlines

Mon, Nov 23 - Tue, Dec 8

3:15 pm - 5:40 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

41h 25m2 stops Vancouver Intl Munich Franz Josef Strauss

6:15 am - 8:59 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

47h 44m2 stops Frankfurt am Main Toronto Pearson Intl

$481Air Canada

Mon, Nov 23 - Tue, Dec 8

8:40 am - 5:55 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

24h 15m2 stops Vancouver Intl Munich Franz Josef Strauss

7:00 am - 9:58 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

23h 58m2 stops Munich Franz Josef Strauss Vancouver Intl

$495Air Canada

Wed, Apr 21 - Thu, Apr 29

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

Fri, Jan 15 - Mon, Jan 18

7:05 pm - 9:55 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

41h 50m2 stops Vancouver Intl Munich Franz Josef Strauss

6:25 am - 12:20 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

14h 55m1 stop Frankfurt am Main

$497Lufthansa

Wed, Apr 21 - Thu, Apr 29

5:05 am - 5:40 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

27h 35m2 stops Denver Intl Munich Franz Josef Strauss

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

14h 45m1 stop Frankfurt am Main

$502United Airlines

Mon, Nov 9 - Sun, Nov 15

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

$502United Airlines

Tue, Nov 10 - Sun, Nov 15

Cheap last minute flights

Enter your travel dates to find the best prices.

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

$492Lufthansa

Wed, Nov 4 - Thu, Dec 3

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

$497United Airlines

Wed, Nov 4 - Thu, Dec 3

3:35 pm - 12:10 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

35h 35m2 stops San Francisco Zurich

1:00 pm - 11:44 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

43h 44m2 stops Zurich San Francisco

$497SWISS

Wed, Nov 4 - Sun, Dec 6

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

$497United Airlines

Wed, Nov 4 - Sun, Dec 6

8:09 am - 1:35 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

20h 26m2 stops Washington, D.C. Dulles Intl Vienna Intl

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

14h 45m1 stop Frankfurt am Main

$499Multiple Airlines

Thu, Nov 5 - Thu, Dec 3

8:09 am - 5:40 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

24h 31m2 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

$507Lufthansa

Thu, Nov 5 - Sun, Dec 6

7:45 am - 5:40 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

24h 55m2 stops Toronto Pearson Intl Munich Franz Josef Strauss

6:15 am - 8:59 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

23h 44m2 stops Frankfurt am Main Toronto Pearson Intl

$514Air Canada

Tue, Nov 3 - Thu, Nov 12

7:45 am - 5:40 pmSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

24h 55m2 stops Toronto Pearson Intl Munich Franz Josef Strauss

11:50 am - 8:59 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

42h 09m2 stops Munich Franz Josef Strauss Toronto Pearson Intl

$516Air Canada

Tue, Nov 3 - Wed, Dec 2

2:35 pm - 11:35 amSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

12h 00m1 stop Reykjavik Keflavik Intl

1:10 pm - 5:00 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

12h 50m1 stop Reykjavik Keflavik Intl

$570Icelandair

Tue, Nov 3 - Thu, Nov 12

11:26 am - 11:35 amSEA Seattle/Tacoma Intl-OSL Oslo Gardermoen

15h 09m2 stops Vancouver Intl Reykjavik Keflavik Intl

1:10 pm - 5:00 pmOSL Oslo Gardermoen-SEA Seattle/Tacoma Intl

12h 50m1 stop Reykjavik Keflavik Intl

$881Icelandair

Tue, Nov 3 - Sat, Dec 5

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

SWISS flights from Seattle to Oslo

Our best SWISS deals on Seattle to Oslo flight tickets

SWISS

Mar 10

SEA1:16 pmSeattle/Tacoma Intl

37h 54m

2 stops

OSL12:10 pmOslo Gardermoen

Mar 14

OSL1:00 pmOslo Gardermoen

42h 34m

2 stops

SEA11:34 pmSeattle/Tacoma Intl

$502

SWISS

Nov 5

SEA1:16 pmSeattle/Tacoma Intl

37h 54m

2 stops

OSL12:10 pmOslo Gardermoen

Dec 1

OSL1:00 pmOslo Gardermoen

43h 44m

2 stops

SEA11:44 pmSeattle/Tacoma Intl

$642

SWISS

Nov 4

SEA1:16 pmSeattle/Tacoma Intl

37h 54m

2 stops

OSL12:10 pmOslo Gardermoen

Nov 30

OSL1:00 pmOslo Gardermoen

43h 44m

2 stops

SEA11:44 pmSeattle/Tacoma Intl

$666

United Airlines flights from Seattle to Oslo

Our best United Airlines deals on Seattle to Oslo flight tickets

United Airlines

Nov 4

SEA2:50 pmSeattle/Tacoma Intl

17h 50m

1 stop

OSL5:40 pmOslo Gardermoen

Dec 5

OSL6:15 amOslo Gardermoen

14h 45m

1 stop

SEA12:00 pmSeattle/Tacoma Intl

$497

United Airlines

Nov 4

SEA8:09 amSeattle/Tacoma Intl

17h 51m

2 stops

OSL11:00 amOslo Gardermoen

Dec 3

OSL6:15 amOslo Gardermoen

14h 45m

1 stop

SEA12:00 pmSeattle/Tacoma Intl

$502

United Airlines

Nov 4

SEA3:49 pmSeattle/Tacoma Intl

16h 51m

2 stops

OSL5:40 pmOslo Gardermoen

Dec 3

OSL11:50 amOslo Gardermoen

20h 54m

2 stops

SEA11:44 pmSeattle/Tacoma Intl

$504

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Mon 11/23

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Tue 12/8

1:10 pm-5:00 pm

1 stop12h 50m

$402

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Mon 11/23

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Tue 12/8

1:10 pm-5:00 pm

1 stop12h 50m

$414

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Wed 4/14

6:50 pm-5:55 pm

1 stop14h 05m

Oslo Gardermoen

Wed 4/28

11:45 am-9:58 pm

2 stops19h 13m

$475

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Mon 11/23

3:15 pm-5:40 pm

2 stops41h 25m

Oslo Gardermoen

Tue 12/8

6:15 am-9:57 pm

2 stops24h 42m

$475

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Mon 11/23

3:15 pm-5:40 pm

2 stops41h 25m

Oslo Gardermoen

Tue 12/8

6:15 am-8:59 pm

2 stops47h 44m

$481

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Wed 4/21

8:40 am-5:55 pm

2 stops24h 15m

Oslo Gardermoen

Thu 4/29

7:00 am-9:58 pm

2 stops23h 58m

$495

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Fri 1/15

2:50 pm-5:40 pm

1 stop17h 50m

Oslo Gardermoen

Mon 1/18

6:15 am-12:00 pm

1 stop14h 45m

$497

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Wed 4/21

7:05 pm-9:55 pm

2 stops41h 50m

Oslo Gardermoen

Thu 4/29

6:25 am-12:20 pm

1 stop14h 55m

$497

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Mon 11/9

5:05 am-5:40 pm

2 stops27h 35m

Oslo Gardermoen

Sun 11/15

6:15 am-12:00 pm

1 stop14h 45m

$502

SeattleOslo

SEA Seattle/Tacoma Intl - OSL Oslo Gardermoen

SEAOSL

Seattle/Tacoma Intl

Tue 11/10

8:09 am-11:00 am

2 stops17h 51m

Oslo Gardermoen

Sun 11/15

6:15 am-12:00 pm

1 stop14h 45m

$502

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 $476 to $663.
The lowest price recently found on this route was $402.

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 $484. 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 $513.

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 $588 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 $527 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	$232
Fastest flight time	11h 20m
Direct flights	None

The best one-way flight to Oslo from Seattle in the past 72 hours is $232. The best round-trip flight deal from Seattle to Oslo found on momondo in the last 72 hours is $402.

The fastest flight from Seattle to Oslo takes 11h 20m

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 20m.
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 8 as of October 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 8,277 reviews	Search British Airways flights
Icelandair	PriceFrom $395	Free Cancellation	Rating 6.9 764 reviews	Search Icelandair flights
Scandinavian Airlines	PriceFrom $426	Free Cancellation	Rating 7.4 2,031 reviews	Search Scandinavian Airlines flights
Air Canada	PriceFrom $483	Free Cancellation	Rating 7.1 11,834 reviews	Search Air Canada flights
Lufthansa	PriceFrom $493	Free Cancellation	Rating 6.8 8,300 reviews	Search Lufthansa flights
Delta	PriceFrom $498	Free Cancellation	Rating 7.8 8,696 reviews	Search Delta flights
United Airlines	PriceFrom $499	Free Cancellation	Rating 7.3 10,455 reviews	Search United Airlines flights
KLM	PriceFrom $522	Free Cancellation	Rating 7.8 1,595 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sun 11/29

Sun 12/6

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Norway

Nearby airports

Airlines

Other Norway destinations

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 $232

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 11/25. 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

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

SWISS flights from Seattle to Oslo

Our best SWISS 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

momondo Fare Finder

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