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

Icelandair, Lufthansa, and British Airways are the most popular carriers 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 67% 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.

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 November 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.

$351 Cheap Flights from Seattle to Oslo in 2025/26

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 $414 to $548. The lowest price recently found on this route was $375.

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One-way

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Cheap round-trip flights

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2:35 pm - 11:35 amSEA-OSL

12h 00m1 stop

1:10 pm - 5:00 pmOSL-SEA

12h 50m1 stop

$375Icelandair

Find Deal

Mon, Nov 24 - Tue, Dec 9

2:35 pm - 11:35 amSEA-OSL

12h 00m1 stop

1:10 pm - 5:00 pmOSL-SEA

12h 50m1 stop

$376Icelandair

Find Deal

Mon, Nov 24 - Tue, Dec 9

3:35 pm - 11:35 amSEA-OSL

12h 00m1 stop

1:10 pm - 6:00 pmOSL-SEA

12h 50m1 stop

$391Icelandair

Find Deal

Sun, Mar 8 - Fri, Mar 13

3:35 pm - 11:35 amSEA-OSL

12h 00m1 stop

1:50 pm - 8:45 pmOSL-SEA

15h 55m1 stop

$392Icelandair

Find Deal

Tue, Mar 17 - Wed, Apr 8

7:00 pm - 3:25 pmSEA-OSL

11h 25m1 stop

4:30 pm - 5:50 pmOSL-SEA

34h 20m1 stop

$393Icelandair

Find Deal

Sat, Apr 11 - Sat, Apr 18

2:35 pm - 8:35 pmSEA-OSL

21h 00m1 stop

1:10 pm - 6:00 pmOSL-SEA

12h 50m1 stop

$396Icelandair

Find Deal

Sat, Mar 7 - Mon, Mar 16

10:15 pm - 9:20 amSEA-TRF

26h 05m1 stop

9:45 am - 7:53 pmTRF-SEA

19h 08m2 stops

$1,193Multiple Airlines

Find Deal

Mon, Nov 17 - Wed, Dec 3

11:15 am - 2:05 pmSEA-TRF

17h 50m2 stops

2:35 pm - 10:25 pmTRF-SEA

40h 50m2 stops

$1,494Scandinavian Airlines

Find Deal

Thu, Dec 11 - Mon, Jan 5

7:20 am - 2:05 pmSEA-TRF

21h 45m2 stops

2:35 pm - 10:25 pmTRF-SEA

40h 50m2 stops

$1,794Scandinavian Airlines

Find Deal

Sun, Dec 14 - Mon, Jan 5

11:15 am - 2:05 pmSEA-TRF

17h 50m2 stops

2:35 pm - 10:25 pmTRF-SEA

40h 50m2 stops

$1,844Scandinavian Airlines

Find Deal

Sat, Dec 13 - Mon, Jan 5

Scandinavian Airlines flights from Seattle to Oslo

Our best Scandinavian Airlines deals on Seattle to Oslo flight tickets

Scandinavian Airlines

Mar 17

SEA1:40 pmSeattle/Tacoma Intl

19h 40m

2 stops

OSL5:20 pmOslo Gardermoen

Apr 8

OSL1:05 pmOslo Gardermoen

18h 11m

1 stop

SEA10:16 pmSeattle/Tacoma Intl

$485

Find similar

Scandinavian Airlines

Feb 19

SEA7:10 amSeattle/Tacoma Intl

21h 00m

2 stops

OSL1:10 pmOslo Gardermoen

Mar 3

OSL10:00 amOslo Gardermoen

17h 58m

2 stops

SEA6:58 pmSeattle/Tacoma Intl

$487

Find similar

Scandinavian Airlines

Mar 16

SEA12:00 pmSeattle/Tacoma Intl

28h 20m

2 stops

OSL12:20 amOslo Gardermoen

Apr 8

OSL1:05 pmOslo Gardermoen

18h 11m

1 stop

SEA10:16 pmSeattle/Tacoma Intl

$497

Find similar

Lufthansa flights from Seattle to Oslo

Our best Lufthansa deals on Seattle to Oslo flight tickets

Lufthansa

Nov 24

SEA12:35 pmSeattle/Tacoma Intl

20h 05m

2 stops

OSL5:40 pmOslo Gardermoen

Dec 9

OSL6:15 amOslo Gardermoen

25h 13m

2 stops

SEA10:28 pmSeattle/Tacoma Intl

$478

Find similar

Lufthansa

Nov 24

SEA12:35 pmSeattle/Tacoma Intl

20h 05m

2 stops

OSL5:40 pmOslo Gardermoen

Dec 9

OSL6:15 amOslo Gardermoen

14h 55m

1 stop

SEA12:10 pmSeattle/Tacoma Intl

$495

Find similar

Lufthansa

Nov 24

SEA12:35 pmSeattle/Tacoma Intl

20h 05m

2 stops

OSL5:40 pmOslo Gardermoen

Dec 9

OSL6:15 amOslo Gardermoen

23h 39m

2 stops

SEA8:54 pmSeattle/Tacoma Intl

$503

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 11/24

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Tue 12/9

1:10 pm-5:00 pm

1 stop12h 50m

$375

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 11/24

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Tue 12/9

1:10 pm-5:00 pm

1 stop12h 50m

$376

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 3/8

3:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Fri 3/13

1:10 pm-6:00 pm

1 stop12h 50m

$391

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 3/17

3:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Wed 4/8

1:50 pm-8:45 pm

1 stop15h 55m

$392

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sat 4/11

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Sat 4/18

4:30 pm-5:50 pm

1 stop34h 20m

$393

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sat 3/7

2:35 pm-8:35 pm

1 stop21h 00m

Oslo Gardermoen

Mon 3/16

1:10 pm-6:00 pm

1 stop12h 50m

$396

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Mon 11/17

10:15 pm-9:20 am

1 stop26h 05m

Oslo Sandefjord

Wed 12/3

9:45 am-7:53 pm

2 stops19h 08m

$1,193

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Thu 12/11

11:15 am-2:05 pm

2 stops17h 50m

Oslo Sandefjord

Mon 1/5

2:35 pm-10:25 pm

2 stops40h 50m

$1,494

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 12/14

7:20 am-2:05 pm

2 stops21h 45m

Oslo Sandefjord

Mon 1/5

2:35 pm-10:25 pm

2 stops40h 50m

$1,794

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sat 12/13

11:15 am-2:05 pm

2 stops17h 50m

Oslo Sandefjord

Mon 1/5

2:35 pm-10:25 pm

2 stops40h 50m

$1,844

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 $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 $528 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 November 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 $368	Free Cancellation	Rating 6.7 7,516 reviews	Search British Airways flights
Icelandair	PriceFrom $403	Free Cancellation	Rating 7.1 578 reviews	Search Icelandair flights
Delta	PriceFrom $468	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights
Finnair	PriceFrom $491	Free Cancellation	Rating 7.6 1,335 reviews	Search Finnair flights
Scandinavian Airlines	PriceFrom $494	Free Cancellation	Rating 7.4 1,575 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $517	Free Cancellation	Rating 7.4 9,015 reviews	Search United Airlines flights
KLM	PriceFrom $524	Free Cancellation	Rating 7.7 1,410 reviews	Search KLM flights
Lufthansa	PriceFrom $551	Free Cancellation	Rating 6.8 7,570 reviews	Search Lufthansa flights
Air France	PriceFrom $552	Free Cancellation	Rating 7.4 1,486 reviews	Search Air France flights
American Airlines	PriceFrom $564	Free Cancellation	Rating 7.2 11,049 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.

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.

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Find better results for your trip to Norway

Cheap flights from Seattle to Oslo from $351

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 12/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Filter for what you want

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Find the cheapest flights from Seattle to Oslo

Cheap round-trip flights

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Scandinavian Airlines flights from Seattle to Oslo

Our best Scandinavian Airlines deals on Seattle to Oslo flight tickets

Lufthansa flights from Seattle to Oslo

Our best Lufthansa deals on Seattle to Oslo flight tickets

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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

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

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 $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?

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

How far in advance should I book a flight to Oslo?

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

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

What airlines fly to Oslo?

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

How far is Seattle/Tacoma Intl to Oslo by plane?

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Oslo?

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Oslo?

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Oslo?

What documentation or ID do you need to fly 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?

Why should I use momondo to find a flight deal from Seattle to Oslo?

Can I find flights from Seattle to Oslo with flexible booking policies on momondo?

How can momondo help me find flights from Seattle to Oslo?

I’m not ready to book a flight from Seattle to Oslo right now. Can momondo alert me if prices change?

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