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.

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

Icelandair, American Airlines, 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 October 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.

$360 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 $426 to $604. The lowest price recently found on this route was $360.

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Find the cheapest flights from Seattle to Oslo

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

2:35 pm - 11:35 amSEA-OSL

12h 00m1 stop

1:10 pm - 5:00 pmOSL-SEA

12h 50m1 stop

$360Icelandair

Find Deal

Thu, Nov 13 - Thu, Nov 27

2:35 pm - 11:35 amSEA-OSL

12h 00m1 stop

1:10 pm - 5:00 pmOSL-SEA

12h 50m1 stop

$361Icelandair

Find Deal

Thu, Nov 13 - Thu, Nov 27

2:35 pm - 11:35 amSEA-OSL

12h 00m1 stop

1:10 pm - 5:00 pmOSL-SEA

12h 50m1 stop

$391Icelandair

Find Deal

Thu, Nov 13 - Wed, Nov 26

8:20 pm - 6:40 pmSEA-OSL

13h 20m1 stop

5:05 pm - 11:35 amOSL-SEA

27h 30m1 stop

$429British Airways

Find Deal

Mon, Apr 6 - Mon, Apr 13

6:50 pm - 10:55 amSEA-OSL

31h 05m1 stop

7:10 am - 4:55 pmOSL-SEA

18h 45m1 stop

$474British Airways

Find Deal

Sun, Feb 15 - Fri, Feb 20

3:10 pm - 5:40 pmSEA-OSL

17h 30m1 stop

4:35 pm - 7:16 pmOSL-SEA

35h 41m2 stops

$479Lufthansa

Find Deal

Fri, Nov 14 - Sat, Dec 6

12:35 pm - 5:50 pmSEA-OSL

20h 15m2 stops

6:15 am - 12:10 pmOSL-SEA

14h 55m1 stop

$481Lufthansa

Find Deal

Thu, Nov 13 - Thu, Nov 27

1:40 pm - 5:20 pmSEA-OSL

19h 40m2 stops

1:05 pm - 10:16 pmOSL-SEA

18h 11m1 stop

$486Scandinavian Airlines

Find Deal

Tue, Mar 17 - Wed, Apr 8

3:00 pm - 9:00 pmSEA-OSL

21h 00m1 stop

5:00 pm - 11:50 amOSL-SEA

27h 50m1 stop

$514KLM

Find Deal

Thu, Nov 27 - Thu, Dec 4

7:20 am - 2:30 pmSEA-TRF

22h 10m2 stops

3:05 pm - 8:43 pmTRF-SEA

38h 38m2 stops

$1,116Scandinavian Airlines

Find Deal

Sat, Apr 4 - Sun, Apr 12

Icelandair flights from Seattle to Oslo

Our best Icelandair deals on Seattle to Oslo flight tickets

Icelandair

Nov 13

SEA2:35 pmSeattle/Tacoma Intl

12h 00m

1 stop

OSL11:35 amOslo Gardermoen

Nov 27

OSL1:10 pmOslo Gardermoen

12h 50m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$360

Find similar

Icelandair

Nov 13

SEA2:35 pmSeattle/Tacoma Intl

12h 00m

1 stop

OSL11:35 amOslo Gardermoen

Nov 27

OSL1:10 pmOslo Gardermoen

12h 50m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$361

Find similar

Icelandair

Nov 13

SEA2:35 pmSeattle/Tacoma Intl

12h 00m

1 stop

OSL11:35 amOslo Gardermoen

Nov 26

OSL1:10 pmOslo Gardermoen

12h 50m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$391

Find similar

British Airways flights from Seattle to Oslo

Our best British Airways deals on Seattle to Oslo flight tickets

British Airways

Apr 6

SEA8:20 pmSeattle/Tacoma Intl

13h 20m

1 stop

OSL6:40 pmOslo Gardermoen

Apr 13

OSL5:05 pmOslo Gardermoen

27h 30m

1 stop

SEA11:35 amSeattle/Tacoma Intl

$429

Find similar

British Airways

Feb 15

SEA6:50 pmSeattle/Tacoma Intl

31h 05m

1 stop

OSL10:55 amOslo Gardermoen

Feb 20

OSL7:10 amOslo Gardermoen

18h 45m

1 stop

SEA4:55 pmSeattle/Tacoma Intl

$474

Find similar

British Airways

Jan 11

SEA6:50 pmSeattle/Tacoma Intl

18h 50m

1 stop

OSL10:40 pmOslo Gardermoen

Jan 16

OSL8:15 amOslo Gardermoen

20h 03m

2 stops

SEA7:18 pmSeattle/Tacoma Intl

$489

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Thu 11/13

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Thu 11/27

1:10 pm-5:00 pm

1 stop12h 50m

$360

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Thu 11/13

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Thu 11/27

1:10 pm-5:00 pm

1 stop12h 50m

$361

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Thu 11/13

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Wed 11/26

1:10 pm-5:00 pm

1 stop12h 50m

$391

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 4/6

8:20 pm-6:40 pm

1 stop13h 20m

Oslo Gardermoen

Mon 4/13

5:05 pm-11:35 am

1 stop27h 30m

$429

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 2/15

6:50 pm-10:55 am

1 stop31h 05m

Oslo Gardermoen

Fri 2/20

7:10 am-4:55 pm

1 stop18h 45m

$474

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 11/14

3:10 pm-5:40 pm

1 stop17h 30m

Oslo Gardermoen

Sat 12/6

4:35 pm-7:16 pm

2 stops35h 41m

$479

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Thu 11/13

12:35 pm-5:50 pm

2 stops20h 15m

Oslo Gardermoen

Thu 11/27

6:15 am-12:10 pm

1 stop14h 55m

$481

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 3/17

1:40 pm-5:20 pm

2 stops19h 40m

Oslo Gardermoen

Wed 4/8

1:05 pm-10:16 pm

1 stop18h 11m

$486

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Thu 11/27

3:00 pm-9:00 pm

1 stop21h 00m

Oslo Gardermoen

Thu 12/4

5:00 pm-11:50 am

1 stop27h 50m

$514

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sat 4/4

7:20 am-2:30 pm

2 stops22h 10m

Oslo Sandefjord

Sun 4/12

3:05 pm-8:43 pm

2 stops38h 38m

$1,116

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 $462. 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 $596 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 $525 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 October 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 $403	Free Cancellation	Rating 7.1 562 reviews	Search Icelandair flights
British Airways	PriceFrom $422	Free Cancellation	Rating 6.7 7,487 reviews	Search British Airways flights
Delta	PriceFrom $468	Free Cancellation	Rating 7.9 7,993 reviews	Search Delta flights
Finnair	PriceFrom $491	Free Cancellation	Rating 7.6 1,333 reviews	Search Finnair flights
Scandinavian Airlines	PriceFrom $494	Free Cancellation	Rating 7.4 1,545 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $517	Free Cancellation	Rating 7.4 8,998 reviews	Search United Airlines flights
KLM	PriceFrom $524	Free Cancellation	Rating 7.7 1,406 reviews	Search KLM flights
Lufthansa	PriceFrom $551	Free Cancellation	Rating 6.8 7,541 reviews	Search Lufthansa flights
Air France	PriceFrom $552	Free Cancellation	Rating 7.4 1,482 reviews	Search Air France flights
American Airlines	PriceFrom $578	Free Cancellation	Rating 7.2 11,030 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.