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 10 different airlines that fly to Oslo on a routine basis, so you have a few additional options to choose from.

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

Icelandair, Delta, and Lufthansa are the most popular carriers operating from Seattle/Tacoma Intl to Oslo

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 10 as of August 2025.

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.

$334 Cheap Flights from Seattle to Oslo in 2025

Q: 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 $508 to $794. The lowest price recently found on this route was $392.

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Find the cheapest flights from Seattle to Oslo

Round-trip

One-way

Last minute

Cheap round-trip flights

3:35 pm - 11:35 amSEA-OSL

12h 00m1 stop

1:10 pm - 5:00 pmOSL-SEA

12h 50m1 stop

$392Icelandair

Find Deal

Tue, Oct 28 - Fri, Nov 7

7:00 pm - 12:35 pmSEA-OSL

32h 35m1 stop

1:10 pm - 5:00 pmOSL-SEA

12h 50m1 stop

$393Icelandair

Find Deal

Fri, Oct 24 - Mon, Nov 10

7:00 pm - 12:35 pmSEA-OSL

32h 35m1 stop

1:10 pm - 5:00 pmOSL-SEA

12h 50m1 stop

$394Icelandair

Find Deal

Fri, Oct 17 - Fri, Nov 7

2:25 pm - 2:10 pmSEA-OSL

15h 45m1 stop

7:10 am - 4:55 pmOSL-SEA

18h 45m1 stop

$471British Airways

Find Deal

Tue, Oct 28 - Fri, Nov 7

9:20 am - 2:10 pmSEA-OSL

20h 50m2 stops

7:10 am - 4:55 pmOSL-SEA

18h 45m1 stop

$475British Airways

Find Deal

Tue, Oct 28 - Fri, Nov 7

4:20 pm - 1:10 pmSEA-OSL

11h 50m1 stop

5:55 am - 10:22 pmOSL-SEA

25h 27m2 stops

$509Scandinavian Airlines

Find Deal

Fri, Oct 17 - Fri, Nov 7

4:20 pm - 4:00 pmSEA-OSL

14h 40m1 stop

5:55 am - 10:25 pmOSL-SEA

25h 30m2 stops

$510Scandinavian Airlines

Find Deal

Fri, Oct 17 - Fri, Nov 7

8:15 am - 5:40 pmSEA-OSL

24h 25m2 stops

11:50 am - 9:56 pmOSL-SEA

43h 06m2 stops

$513United Airlines

Find Deal

Mon, Dec 1 - Sun, Dec 7

3:05 pm - 12:50 pmSEA-TRF

36h 45m2 stops

2:35 pm - 11:50 amTRF-SEA

30h 15m2 stops

$3,828KLM

Find Deal

Wed, Dec 3 - Sun, Dec 7

3:05 pm - 12:50 pmSEA-TRF

36h 45m2 stops

2:35 pm - 11:50 amTRF-SEA

30h 15m2 stops

$3,871KLM

Find Deal

Wed, Dec 3 - Sun, Dec 7

Icelandair flights from Seattle to Oslo

Our best Icelandair deals on Seattle to Oslo flight tickets

Icelandair

Oct 28

SEA3:35 pmSeattle/Tacoma Intl

12h 00m

1 stop

OSL11:35 amOslo Gardermoen

Nov 7

OSL1:10 pmOslo Gardermoen

12h 50m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$392

Find similar

Icelandair

Oct 24

SEA7:00 pmSeattle/Tacoma Intl

32h 35m

1 stop

OSL12:35 pmOslo Gardermoen

Nov 10

OSL1:10 pmOslo Gardermoen

12h 50m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$393

Find similar

Icelandair

Oct 17

SEA7:00 pmSeattle/Tacoma Intl

32h 35m

1 stop

OSL12:35 pmOslo Gardermoen

Nov 7

OSL1:10 pmOslo Gardermoen

12h 50m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$394

Find similar

British Airways flights from Seattle to Oslo

Our best British Airways deals on Seattle to Oslo flight tickets

British Airways

Oct 28

SEA2:25 pmSeattle/Tacoma Intl

15h 45m

1 stop

OSL2:10 pmOslo Gardermoen

Nov 7

OSL7:10 amOslo Gardermoen

18h 45m

1 stop

SEA4:55 pmSeattle/Tacoma Intl

$471

Find similar

British Airways

Oct 28

SEA9:20 amSeattle/Tacoma Intl

20h 50m

2 stops

OSL2:10 pmOslo Gardermoen

Nov 7

OSL7:10 amOslo Gardermoen

18h 45m

1 stop

SEA4:55 pmSeattle/Tacoma Intl

$475

Find similar

British Airways

Dec 29

SEA6:50 pmSeattle/Tacoma Intl

31h 05m

1 stop

OSL10:55 amOslo Gardermoen

Jan 13

OSL11:45 amOslo Gardermoen

14h 10m

1 stop

SEA4:55 pmSeattle/Tacoma Intl

$483

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 10/28

3:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Fri 11/7

1:10 pm-5:00 pm

1 stop12h 50m

$392

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 10/24

7:00 pm-12:35 pm

1 stop32h 35m

Oslo Gardermoen

Mon 11/10

1:10 pm-5:00 pm

1 stop12h 50m

$393

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 10/17

7:00 pm-12:35 pm

1 stop32h 35m

Oslo Gardermoen

Fri 11/7

1:10 pm-5:00 pm

1 stop12h 50m

$394

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 10/28

2:25 pm-2:10 pm

1 stop15h 45m

Oslo Gardermoen

Fri 11/7

7:10 am-4:55 pm

1 stop18h 45m

$471

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 10/28

9:20 am-2:10 pm

2 stops20h 50m

Oslo Gardermoen

Fri 11/7

7:10 am-4:55 pm

1 stop18h 45m

$475

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 10/17

4:20 pm-1:10 pm

1 stop11h 50m

Oslo Gardermoen

Fri 11/7

5:55 am-10:22 pm

2 stops25h 27m

$509

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 10/17

4:20 pm-4:00 pm

1 stop14h 40m

Oslo Gardermoen

Fri 11/7

5:55 am-10:25 pm

2 stops25h 30m

$510

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 12/1

8:15 am-5:40 pm

2 stops24h 25m

Oslo Gardermoen

Sun 12/7

11:50 am-9:56 pm

2 stops43h 06m

$513

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Wed 12/3

3:05 pm-12:50 pm

2 stops36h 45m

Oslo Sandefjord

Sun 12/7

2:35 pm-11:50 am

2 stops30h 15m

$3,828

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Wed 12/3

3:05 pm-12:50 pm

2 stops36h 45m

Oslo Sandefjord

Sun 12/7

2:35 pm-11:50 am

2 stops30h 15m

$3,871

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?

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 $531. If you’re not able to fly to Oslo in January, then October is your next best option. Flight prices from Seattle to Oslo during October average around $531.

What is the cheapest day to depart on your flight to Oslo?

The cheapest day to depart on your flight to Oslo is on a Tuesday when prices can be found for as low as $772. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Oslo for around $896.

What is the cheapest time of day to depart on your flight to Oslo?

Flying to Oslo from Seattle in the evening is the least expensive time of day to depart. momondo users have found prices as low as $696 when looking at flights departing in the evening. Try not to purchase tickets in the afternoon because they tend to be around $959. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight 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 $629 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 $529 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	$334
Fastest flight time	11h 25m
Direct flights	None
Airports in Oslo	2 airports

The best one-way flight to Oslo from Seattle in the past 72 hours is $334. The best round-trip flight deal from Seattle to Oslo found on momondo in the last 72 hours is $392.

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

There are no direct flights from Seattle to Oslo. Popular non-direct routes for this connection are Seattle/Tacoma Intl Airport - Oslo Sandefjord Airport and Seattle/Tacoma Intl Airport - Oslo Gardermoen Airport.

There are 2 airports near Oslo: Oslo Gardermoen (OSL), Oslo Sandefjord (TRF)

Search flight deals

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 10 as of August 2025.
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
Icelandair	PriceFrom $414	Free Cancellation	Rating 7.0 526 reviews	Search Icelandair flights
British Airways	PriceFrom $475	Free Cancellation	Rating 6.6 7,267 reviews	Search British Airways flights
Finnair	PriceFrom $484	Free Cancellation	Rating 7.6 1,321 reviews	Search Finnair flights
Scandinavian Airlines	PriceFrom $494	Free Cancellation	Rating 7.4 1,469 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $517	Free Cancellation	Rating 7.4 8,916 reviews	Search United Airlines flights
KLM	PriceFrom $551	Free Cancellation	Rating 7.8 1,384 reviews	Search KLM flights
Lufthansa	PriceFrom $551	Free Cancellation	Rating 6.8 7,322 reviews	Search Lufthansa flights
Air France	PriceFrom $552	Free Cancellation	Rating 7.4 1,468 reviews	Search Air France flights
Delta	PriceFrom $573	Free Cancellation	Rating 8.0 7,985 reviews	Search Delta flights
American Airlines	PriceFrom $578	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines 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.