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 Ethiopian Air 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.

$210 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

1:10 pm - 5:00 pm

OSL

SEA

12h 50m1 stop

$393Icelandair

Sun, Jan 11 - Mon, Jan 26

2:35 pm - 11:35 am

SEA

OSL

12h 00m1 stop

9:30 pm - 5:00 pm

OSL

SEA

28h 30m1 stop

$396Icelandair

Sun, Jan 25 - Sun, Feb 1

2:35 pm - 11:35 am

SEA

OSL

12h 00m1 stop

1:10 pm - 5:00 pm

OSL

SEA

12h 50m1 stop

$420Icelandair

Mon, Feb 9 - Mon, Feb 16

3:35 pm - 11:35 am

SEA

OSL

12h 00m1 stop

1:50 pm - 8:40 pm

OSL

SEA

15h 50m1 stop

$451Icelandair

Wed, Mar 25 - Tue, Mar 31

7:00 am - 1:05 pm

SEA

OSL

21h 05m2 stops

6:15 am - 12:10 pm

OSL

SEA

14h 55m1 stop

$465Lufthansa

Sat, Jan 24 - Sat, Jan 31

2:00 pm - 5:50 pm

SEA

OSL

18h 50m1 stop

6:15 am - 12:10 pm

OSL

SEA

14h 55m1 stop

$483Lufthansa

Thu, Feb 19 - Mon, Mar 2

3:40 pm - 5:55 pm

SEA

OSL

17h 15m2 stops

9:55 am - 7:18 pm

OSL

SEA

18h 23m2 stops

$488Multiple Airlines

Wed, Apr 8 - Mon, Apr 20

3:10 pm - 5:40 pm

SEA

OSL

17h 30m1 stop

6:15 am - 7:16 pm

OSL

SEA

22h 01m2 stops

$489Multiple Airlines

Fri, Jan 23 - Fri, Jan 30

7:15 am - 2:30 pm

SEA

TRF

22h 15m2 stops

3:05 pm - 10:17 pm

TRF

SEA

40h 12m2 stops

$712Scandinavian Airlines

Sun, May 3 - Sun, May 17

7:15 am - 12:25 am

SEA

TRF

32h 10m2 stops

3:05 pm - 1:45 pm

TRF

SEA

31h 40m1 stop

$732Scandinavian Airlines

Sun, May 3 - Thu, May 21

Lufthansa flights from Seattle to Oslo

Our best Lufthansa deals on Seattle to Oslo flight tickets

Lufthansa

Jan 24

SEA7:00 amSeattle/Tacoma Intl

21h 05m

2 stops

OSL1:05 pmOslo Gardermoen

Jan 31

OSL6:15 amOslo Gardermoen

14h 55m

1 stop

SEA12:10 pmSeattle/Tacoma Intl

$465

Find similar

Lufthansa

Feb 19

SEA2:00 pmSeattle/Tacoma Intl

18h 50m

1 stop

OSL5:50 pmOslo Gardermoen

Mar 2

OSL6:15 amOslo Gardermoen

14h 55m

1 stop

SEA12:10 pmSeattle/Tacoma Intl

$483

Find similar

Lufthansa

Jan 23

SEA2:10 pmSeattle/Tacoma Intl

18h 30m

2 stops

OSL5:40 pmOslo Gardermoen

Jan 30

OSL6:15 amOslo Gardermoen

22h 01m

2 stops

SEA7:16 pmSeattle/Tacoma Intl

$495

Find similar

British Airways flights from Seattle to Oslo

Our best British Airways deals on Seattle to Oslo flight tickets

British Airways

Feb 19

SEA6:50 pmSeattle/Tacoma Intl

19h 45m

1 stop

OSL11:35 pmOslo Gardermoen

Mar 2

OSL11:35 amOslo Gardermoen

32h 55m

1 stop

SEA11:30 amSeattle/Tacoma Intl

$490

Find similar

British Airways

Feb 18

SEA2:18 pmSeattle/Tacoma Intl

23h 22m

2 stops

OSL10:40 pmOslo Gardermoen

Feb 24

OSL11:45 amOslo Gardermoen

14h 10m

1 stop

SEA4:55 pmSeattle/Tacoma Intl

$511

Find similar

British Airways

Jan 24

SEA6:50 pmSeattle/Tacoma Intl

30h 45m

1 stop

OSL10:35 amOslo Gardermoen

Jan 31

OSL7:10 amOslo Gardermoen

24h 10m

2 stops

SEA10:20 pmSeattle/Tacoma Intl

$515

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 1/11

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Mon 1/26

1:10 pm-5:00 pm

1 stop12h 50m

$393

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 1/25

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Sun 2/1

9:30 pm-5:00 pm

1 stop28h 30m

$396

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 2/9

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Mon 2/16

1:10 pm-5:00 pm

1 stop12h 50m

$420

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 3/25

3:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Tue 3/31

1:50 pm-8:40 pm

1 stop15h 50m

$451

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sat 1/24

7:00 am-1:05 pm

2 stops21h 05m

Oslo Gardermoen

Sat 1/31

6:15 am-12:10 pm

1 stop14h 55m

$465

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Thu 2/19

2:00 pm-5:50 pm

1 stop18h 50m

Oslo Gardermoen

Mon 3/2

6:15 am-12:10 pm

1 stop14h 55m

$483

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 4/8

3:40 pm-5:55 pm

2 stops17h 15m

Oslo Gardermoen

Mon 4/20

9:55 am-7:18 pm

2 stops18h 23m

$488

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 1/23

3:10 pm-5:40 pm

1 stop17h 30m

Oslo Gardermoen

Fri 1/30

6:15 am-7:16 pm

2 stops22h 01m

$489

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 5/3

7:15 am-2:30 pm

2 stops22h 15m

Oslo Sandefjord

Sun 5/17

3:05 pm-10:17 pm

2 stops40h 12m

$712

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 5/3

7:15 am-12:25 am

2 stops32h 10m

Oslo Sandefjord

Thu 5/21

3:05 pm-1:45 pm

1 stop31h 40m

$732

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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 $457. 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.

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 $602 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	12h 00m
Direct flights	None

The fastest flight from Seattle to Oslo takes 12h 00m

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 12h 00m.
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 7,617 reviews	Search British Airways flights
Icelandair	PriceFrom $403	Free Cancellation	Rating 7.0 592 reviews	Search Icelandair flights
Delta	PriceFrom $478	Free Cancellation	Rating 7.9 8,022 reviews	Search Delta flights
Scandinavian Airlines	PriceFrom $492	Free Cancellation	Rating 7.4 1,629 reviews	Search Scandinavian Airlines flights
American Airlines	PriceFrom $510	Free Cancellation	Rating 7.2 11,069 reviews	Search American Airlines flights
United Airlines	PriceFrom $517	Free Cancellation	Rating 7.4 9,117 reviews	Search United Airlines flights
KLM	PriceFrom $524	Free Cancellation	Rating 7.7 1,435 reviews	Search KLM flights
Lufthansa	PriceFrom $551	Free Cancellation	Rating 6.8 7,657 reviews	Search Lufthansa flights
Air France	PriceFrom $552	Free Cancellation	Rating 7.4 1,515 reviews	Search Air France flights
Finnair	PriceFrom $569	Free Cancellation	Rating 7.6 1,339 reviews	Search Finnair 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.