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 66% 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?

British Airways, Icelandair, 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 December 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.

$296 Cheap Flights from Seattle to Oslo in 2025/26

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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.

2:35 pm - 11:35 am

SEA

OSL

12h 00m1 stop

1:05 pm - 5:00 pm

OSL

SEA

12h 55m1 stop

$390Icelandair

Mon, Jan 12 - Sun, Jan 25

7:00 pm - 3:25 pm

SEA

OSL

11h 25m1 stop

1:50 pm - 8:45 pm

OSL

SEA

15h 55m1 stop

$391Icelandair

Mon, Apr 13 - Sun, Apr 26

2:35 pm - 11:35 am

SEA

OSL

12h 00m1 stop

1:10 pm - 5:00 pm

OSL

SEA

12h 50m1 stop

$392Icelandair

Fri, Jan 23 - Tue, Jan 27

2:35 pm - 11:35 am

SEA

OSL

12h 00m1 stop

9:30 pm - 6:00 pm

OSL

SEA

28h 30m1 stop

$393Icelandair

Sun, Mar 1 - Sun, Mar 15

2:35 pm - 11:35 am

SEA

OSL

12h 00m1 stop

1:10 pm - 6:00 pm

OSL

SEA

12h 50m1 stop

$396Icelandair

Sat, Feb 28 - Fri, Mar 13

2:35 pm - 8:35 pm

SEA

OSL

21h 00m1 stop

9:30 pm - 6:00 pm

OSL

SEA

28h 30m1 stop

$398Icelandair

Sat, Feb 28 - Sun, Mar 15

7:00 pm - 12:35 pm

SEA

OSL

32h 35m1 stop

4:30 pm - 5:55 pm

OSL

SEA

34h 25m1 stop

$399Icelandair

Sun, Apr 5 - Sun, Apr 12

7:00 pm - 3:25 pm

SEA

OSL

11h 25m1 stop

1:50 pm - 8:45 pm

OSL

SEA

15h 55m1 stop

$404Icelandair

Mon, May 4 - Thu, May 14

6:05 am - 2:05 pm

SEA

TRF

23h 00m2 stops

2:35 pm - 10:20 pm

TRF

SEA

39h 45m2 stops

$520Scandinavian Airlines

Mon, Mar 2 - Thu, Mar 12

10:55 am - 12:25 am

SEA

TRF

28h 30m2 stops

6:00 am - 10:17 pm

TRF

SEA

25h 17m2 stops

$577Scandinavian Airlines

Sun, May 3 - Thu, Jun 4

Scandinavian Airlines flights from Seattle to Oslo

Our best Scandinavian Airlines deals on Seattle to Oslo flight tickets

Scandinavian Airlines

May 10

SEA7:20 amSeattle/Tacoma Intl

16h 55m

2 stops

OSL9:15 amOslo Gardermoen

May 29

OSL8:00 amOslo Gardermoen

14h 45m

1 stop

SEA1:45 pmSeattle/Tacoma Intl

$432

Find similar

Scandinavian Airlines

Mar 2

SEA6:05 amSeattle/Tacoma Intl

23h 00m

2 stops

TRF2:05 pmOslo Sandefjord

Mar 12

TRF2:35 pmOslo Sandefjord

39h 45m

2 stops

SEA10:20 pmSeattle/Tacoma Intl

$520

Find similar

Scandinavian Airlines

May 3

SEA10:55 amSeattle/Tacoma Intl

28h 30m

2 stops

TRF12:25 amOslo Sandefjord

Jun 4

TRF6:00 amOslo Sandefjord

25h 17m

2 stops

SEA10:17 pmSeattle/Tacoma Intl

$577

Find similar

British Airways flights from Seattle to Oslo

Our best British Airways deals on Seattle to Oslo flight tickets

British Airways

Mar 17

SEA2:25 pmSeattle/Tacoma Intl

24h 15m

1 stop

OSL10:40 pmOslo Gardermoen

Apr 8

OSL7:40 amOslo Gardermoen

19h 45m

1 stop

SEA6:25 pmSeattle/Tacoma Intl

$439

Find similar

British Airways

Mar 17

SEA2:25 pmSeattle/Tacoma Intl

24h 15m

1 stop

OSL10:40 pmOslo Gardermoen

Apr 8

OSL5:05 pmOslo Gardermoen

34h 20m

1 stop

SEA6:25 pmSeattle/Tacoma Intl

$452

Find similar

British Airways

Mar 4

SEA6:50 pmSeattle/Tacoma Intl

18h 50m

1 stop

OSL10:40 pmOslo Gardermoen

Mar 12

OSL3:05 pmOslo Gardermoen

29h 25m

1 stop

SEA12:30 pmSeattle/Tacoma Intl

$457

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 1/12

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Sun 1/25

1:05 pm-5:00 pm

1 stop12h 55m

$390

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 4/13

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Sun 4/26

1:50 pm-8:45 pm

1 stop15h 55m

$391

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 1/23

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Tue 1/27

1:10 pm-5:00 pm

1 stop12h 50m

$392

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 3/1

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Sun 3/15

9:30 pm-6:00 pm

1 stop28h 30m

$393

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sat 2/28

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Fri 3/13

1:10 pm-6:00 pm

1 stop12h 50m

$396

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sat 2/28

2:35 pm-8:35 pm

1 stop21h 00m

Oslo Gardermoen

Sun 3/15

9:30 pm-6:00 pm

1 stop28h 30m

$398

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 4/5

7:00 pm-12:35 pm

1 stop32h 35m

Oslo Gardermoen

Sun 4/12

4:30 pm-5:55 pm

1 stop34h 25m

$399

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 5/4

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Thu 5/14

1:50 pm-8:45 pm

1 stop15h 55m

$404

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Mon 3/2

6:05 am-2:05 pm

2 stops23h 00m

Oslo Sandefjord

Thu 3/12

2:35 pm-10:20 pm

2 stops39h 45m

$520

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 5/3

10:55 am-12:25 am

2 stops28h 30m

Oslo Sandefjord

Thu 6/4

6:00 am-10:17 pm

2 stops25h 17m

$577

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 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 $434. 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 $483.

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 $592 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 $531 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

Fastest flight time	11h 25m
Direct flights	None

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

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 December 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
British Airways	PriceFrom $354	Free Cancellation	Rating 6.7 7,562 reviews	Search British Airways flights
Icelandair	PriceFrom $403	Free Cancellation	Rating 7.0 584 reviews	Search Icelandair flights
Delta	PriceFrom $478	Free Cancellation	Rating 7.9 8,009 reviews	Search Delta flights
Finnair	PriceFrom $484	Free Cancellation	Rating 7.6 1,334 reviews	Search Finnair flights
Scandinavian Airlines	PriceFrom $492	Free Cancellation	Rating 7.4 1,591 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $517	Free Cancellation	Rating 7.4 9,066 reviews	Search United Airlines flights
KLM	PriceFrom $524	Free Cancellation	Rating 7.7 1,430 reviews	Search KLM flights
Lufthansa	PriceFrom $551	Free Cancellation	Rating 6.8 7,612 reviews	Search Lufthansa flights
Air France	PriceFrom $552	Free Cancellation	Rating 7.4 1,500 reviews	Search Air France flights
American Airlines	PriceFrom $564	Free Cancellation	Rating 7.2 11,044 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.