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?

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 September 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.

$320 Cheap Flights from Seattle to Oslo in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

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

Find the cheapest flights from Seattle to Oslo

Round-trip

One-way

Last minute

Cheap round-trip flights

7:00 pm - 3:45 pmSEA-OSL

11h 45m1 stop

1:10 pm - 5:00 pmOSL-SEA

12h 50m1 stop

$380Icelandair

Find Deal

Sun, Oct 19 - Tue, Nov 4

7:00 pm - 3:45 pmSEA-OSL

11h 45m1 stop

1:10 pm - 5:00 pmOSL-SEA

12h 50m1 stop

$385Icelandair

Find Deal

Sun, Oct 19 - Tue, Nov 4

2:35 pm - 11:35 amSEA-OSL

12h 00m1 stop

1:10 pm - 5:00 pmOSL-SEA

12h 50m1 stop

$394Icelandair

Find Deal

Sat, Dec 6 - Fri, Dec 12

2:10 pm - 5:20 pmSEA-OSL

18h 10m2 stops

9:55 am - 2:00 pmOSL-SEA

13h 05m1 stop

$470Scandinavian Airlines

Find Deal

Wed, Oct 15 - Fri, Oct 24

6:50 pm - 6:40 pmSEA-OSL

14h 50m1 stop

3:05 pm - 11:30 amOSL-SEA

29h 25m1 stop

$478British Airways

Find Deal

Mon, Dec 8 - Thu, Dec 18

10:25 am - 6:15 pmSEA-OSL

23h 50m2 stops

5:55 am - 10:25 pmOSL-SEA

25h 30m2 stops

$484Scandinavian Airlines

Find Deal

Tue, Oct 28 - Fri, Nov 7

2:05 pm - 4:20 pmSEA-OSL

17h 15m1 stop

9:25 am - 11:50 amOSL-SEA

35h 25m1 stop

$496Delta

Find Deal

Sun, Dec 7 - Mon, Dec 15

8:25 pm - 1:45 pmSEA-OSL

32h 20m1 stop

6:25 am - 11:25 amOSL-SEA

14h 00m1 stop

$497Delta

Find Deal

Sun, Oct 19 - Tue, Nov 4

2:20 pm - 3:05 pmSEA-TRF

15h 45m2 stops

9:00 am - 4:59 pmTRF-SEA

16h 59m2 stops

$1,547Lufthansa

Find Deal

Wed, Oct 15 - Wed, Oct 22

2:20 pm - 3:05 pmSEA-TRF

15h 45m2 stops

9:00 am - 4:59 pmTRF-SEA

16h 59m2 stops

$1,898Lufthansa

Find Deal

Wed, Oct 1 - Wed, Oct 15

Scandinavian Airlines flights from Seattle to Oslo

Our best Scandinavian Airlines deals on Seattle to Oslo flight tickets

Scandinavian Airlines

Oct 15

SEA2:10 pmSeattle/Tacoma Intl

18h 10m

2 stops

OSL5:20 pmOslo Gardermoen

Oct 24

OSL9:55 amOslo Gardermoen

13h 05m

1 stop

SEA2:00 pmSeattle/Tacoma Intl

$470

Find similar

Scandinavian Airlines

Oct 28

SEA10:25 amSeattle/Tacoma Intl

23h 50m

2 stops

OSL6:15 pmOslo Gardermoen

Nov 7

OSL5:55 amOslo Gardermoen

25h 30m

2 stops

SEA10:25 pmSeattle/Tacoma Intl

$484

Find similar

Scandinavian Airlines

Oct 28

SEA10:25 amSeattle/Tacoma Intl

23h 50m

2 stops

OSL6:15 pmOslo Gardermoen

Nov 7

OSL8:00 amOslo Gardermoen

23h 22m

2 stops

SEA10:22 pmSeattle/Tacoma Intl

$485

Find similar

Icelandair flights from Seattle to Oslo

Our best Icelandair deals on Seattle to Oslo flight tickets

Icelandair

Oct 19

SEA7:00 pmSeattle/Tacoma Intl

11h 45m

1 stop

OSL3:45 pmOslo Gardermoen

Nov 4

OSL1:10 pmOslo Gardermoen

12h 50m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$380

Find similar

Icelandair

Oct 19

SEA7:00 pmSeattle/Tacoma Intl

11h 45m

1 stop

OSL3:45 pmOslo Gardermoen

Nov 4

OSL1:10 pmOslo Gardermoen

12h 50m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$385

Find similar

Icelandair

Dec 6

SEA2:35 pmSeattle/Tacoma Intl

12h 00m

1 stop

OSL11:35 amOslo Gardermoen

Dec 12

OSL1:10 pmOslo Gardermoen

12h 50m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$394

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 10/19

7:00 pm-3:45 pm

1 stop11h 45m

Oslo Gardermoen

Tue 11/4

1:10 pm-5:00 pm

1 stop12h 50m

$380

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 10/19

7:00 pm-3:45 pm

1 stop11h 45m

Oslo Gardermoen

Tue 11/4

1:10 pm-5:00 pm

1 stop12h 50m

$385

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sat 12/6

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Fri 12/12

1:10 pm-5:00 pm

1 stop12h 50m

$394

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 10/15

2:10 pm-5:20 pm

2 stops18h 10m

Oslo Gardermoen

Fri 10/24

9:55 am-2:00 pm

1 stop13h 05m

$470

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 12/8

6:50 pm-6:40 pm

1 stop14h 50m

Oslo Gardermoen

Thu 12/18

3:05 pm-11:30 am

1 stop29h 25m

$478

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 10/28

10:25 am-6:15 pm

2 stops23h 50m

Oslo Gardermoen

Fri 11/7

5:55 am-10:25 pm

2 stops25h 30m

$484

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 12/7

2:05 pm-4:20 pm

1 stop17h 15m

Oslo Gardermoen

Mon 12/15

9:25 am-11:50 am

1 stop35h 25m

$496

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 10/19

8:25 pm-1:45 pm

1 stop32h 20m

Oslo Gardermoen

Tue 11/4

6:25 am-11:25 am

1 stop14h 00m

$497

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Wed 10/15

2:20 pm-3:05 pm

2 stops15h 45m

Oslo Sandefjord

Wed 10/22

9:00 am-4:59 pm

2 stops16h 59m

$1,547

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Wed 10/1

2:20 pm-3:05 pm

2 stops15h 45m

Oslo Sandefjord

Wed 10/15

9:00 am-4:59 pm

2 stops16h 59m

$1,898

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 October is, on average, the cheapest month to fly to Oslo from Seattle, with most prices found around $499. If you’re not able to fly to Oslo in October, then November is your next best option. Flight prices from Seattle to Oslo during November average around $506.

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 $611 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

Direct flights	None

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 September 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 $409	Free Cancellation	Rating 7.0 545 reviews	Search Icelandair flights
British Airways	PriceFrom $475	Free Cancellation	Rating 6.7 7,367 reviews	Search British Airways flights
Finnair	PriceFrom $484	Free Cancellation	Rating 7.6 1,324 reviews	Search Finnair flights
Scandinavian Airlines	PriceFrom $494	Free Cancellation	Rating 7.4 1,486 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $517	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights
KLM	PriceFrom $524	Free Cancellation	Rating 7.8 1,386 reviews	Search KLM flights
Delta	PriceFrom $545	Free Cancellation	Rating 7.9 7,961 reviews	Search Delta flights
Lufthansa	PriceFrom $551	Free Cancellation	Rating 6.8 7,409 reviews	Search Lufthansa flights
Air France	PriceFrom $552	Free Cancellation	Rating 7.4 1,468 reviews	Search Air France 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.