What airlines fly to Seattle?

Icelandair, Lufthansa and Scandinavian Airlines are the top three most popular airlines that fly to Seattle from Oslo according to our data. Icelandair is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 4 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

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

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

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

Prices for flights from Oslo to Seattle/Tacoma Intl Airport are updated daily.

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

As of January 2026, there are 4 operators available to choose from for flights from Oslo to Seattle/Tacoma Intl Airport.

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

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 Oslo to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$315 Cheap Flights from Oslo to Seattle in 2026

Q: What is the typical price of a round-trip flight between Oslo and Seattle?

Prices are currently low for flights on this route. Typical prices usually range from $450 to $743. The lowest price recently found on this route was $414.

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Find the cheapest flights from Oslo to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:35 am - 4:00 pm

OSL

SEA

16h 25m

1 stop

8:20 pm - 11:20 pm

SEA

OSL

18h 00m

1 stop

$414Multiple Airlines

Tue, May 12 - Tue, Jun 2

1:50 pm - 8:40 pm

OSL

SEA

15h 50m

1 stop

7:00 pm - 12:35 pm

SEA

OSL

32h 35m

1 stop

$418Icelandair

Sat, Apr 25 - Tue, May 5

8:35 am - 4:00 pm

OSL

SEA

16h 25m

1 stop

1:35 pm - 11:25 pm

SEA

OSL

24h 50m

1 stop

$419Multiple Airlines

Sun, May 10 - Mon, May 25

9:30 pm - 5:00 pm

OSL

SEA

28h 30m

1 stop

2:35 pm - 11:35 am

SEA

OSL

12h 00m

1 stop

$424Icelandair

Sun, Feb 15 - Mon, Mar 2

12:50 pm - 10:26 pm

OSL

SEA

18h 36m

2 stops

8:20 pm - 11:20 pm

SEA

OSL

18h 00m

1 stop

$426Multiple Airlines

Tue, May 12 - Tue, Jun 2

1:50 pm - 5:55 pm

OSL

SEA

13h 05m

1 stop

11:25 pm - 12:35 pm

SEA

OSL

28h 10m

1 stop

$429Icelandair

Sun, May 10 - Mon, May 25

8:00 am - 10:26 pm

OSL

SEA

23h 26m

2 stops

8:20 pm - 11:25 pm

SEA

OSL

18h 05m

1 stop

$443British Airways

Sun, May 10 - Mon, May 25

8:15 am - 10:26 pm

OSL

SEA

23h 11m

2 stops

11:16 am - 11:20 pm

SEA

OSL

27h 04m

2 stops

$444British Airways

Sat, Apr 25 - Tue, May 5

2:35 pm - 10:22 pm

TRF

SEA

40h 47m

2 stops

2:00 pm - 2:05 pm

SEA

TRF

39h 05m

2 stops

$743Scandinavian Airlines

Fri, Feb 27 - Mon, Mar 2

2:35 pm - 10:22 pm

TRF

SEA

40h 47m

2 stops

2:00 pm - 2:05 pm

SEA

TRF

39h 05m

2 stops

$750Scandinavian Airlines

Fri, Feb 27 - Mon, Mar 2

Delta flights from Oslo to Seattle

Our best Delta deals on Oslo to Seattle flight tickets

Delta

May 1

OSL6:30 amOslo Gardermoen

14h 12m

1 stop

SEA11:42 amSeattle/Tacoma Intl

May 31

SEA9:45 pmSeattle/Tacoma Intl

13h 55m

1 stop

OSL8:40 pmOslo Gardermoen

$496

Delta

May 11

OSL9:20 amOslo Gardermoen

20h 08m

2 stops

SEA8:28 pmSeattle/Tacoma Intl

Jun 1

SEA10:00 pmSeattle/Tacoma Intl

13h 40m

1 stop

OSL8:40 pmOslo Gardermoen

$499

Delta

Feb 15

OSL6:30 amOslo Gardermoen

19h 18m

2 stops

SEA4:48 pmSeattle/Tacoma Intl

Mar 2

SEA2:10 pmSeattle/Tacoma Intl

17h 10m

1 stop

OSL4:20 pmOslo Gardermoen

$505

British Airways flights from Oslo to Seattle

Our best British Airways deals on Oslo to Seattle flight tickets

British Airways

May 10

OSL8:00 amOslo Gardermoen

23h 26m

2 stops

SEA10:26 pmSeattle/Tacoma Intl

May 25

SEA8:20 pmSeattle/Tacoma Intl

18h 05m

1 stop

OSL11:25 pmOslo Gardermoen

$443

British Airways

Apr 25

OSL8:15 amOslo Gardermoen

23h 11m

2 stops

SEA10:26 pmSeattle/Tacoma Intl

May 5

SEA11:16 amSeattle/Tacoma Intl

27h 04m

2 stops

OSL11:20 pmOslo Gardermoen

$444

British Airways

May 9

OSL11:30 amOslo Gardermoen

20h 17m

2 stops

SEA10:47 pmSeattle/Tacoma Intl

Jun 3

SEA1:35 pmSeattle/Tacoma Intl

20h 40m

1 stop

OSL7:15 pmOslo Gardermoen

$512

Fly from

Fly to

Route

Depart

Return

Price

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Tue 5/12

8:35 am-4:00 pm

1 stop16h 25m

Seattle/Tacoma Intl

Tue 6/2

8:20 pm-11:20 pm

1 stop18h 00m

$414

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sat 4/25

1:50 pm-8:40 pm

1 stop15h 50m

Seattle/Tacoma Intl

Tue 5/5

7:00 pm-12:35 pm

1 stop32h 35m

$418

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sun 5/10

8:35 am-4:00 pm

1 stop16h 25m

Seattle/Tacoma Intl

Mon 5/25

1:35 pm-11:25 pm

1 stop24h 50m

$419

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sun 2/15

9:30 pm-5:00 pm

1 stop28h 30m

Seattle/Tacoma Intl

Mon 3/2

2:35 pm-11:35 am

1 stop12h 00m

$424

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Tue 5/12

12:50 pm-10:26 pm

2 stops18h 36m

Seattle/Tacoma Intl

Tue 6/2

8:20 pm-11:20 pm

1 stop18h 00m

$426

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sun 5/10

1:50 pm-5:55 pm

1 stop13h 05m

Seattle/Tacoma Intl

Mon 5/25

11:25 pm-12:35 pm

1 stop28h 10m

$429

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sun 5/10

8:00 am-10:26 pm

2 stops23h 26m

Seattle/Tacoma Intl

Mon 5/25

8:20 pm-11:25 pm

1 stop18h 05m

$443

OsloSeattle

OSL - SEA

OSLSEA

Oslo Gardermoen

Sat 4/25

8:15 am-10:26 pm

2 stops23h 11m

Seattle/Tacoma Intl

Tue 5/5

11:16 am-11:20 pm

2 stops27h 04m

$444

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Fri 2/27

2:35 pm-10:22 pm

2 stops40h 47m

Seattle/Tacoma Intl

Mon 3/2

2:00 pm-2:05 pm

2 stops39h 05m

$743

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Fri 2/27

2:35 pm-10:22 pm

2 stops40h 47m

Seattle/Tacoma Intl

Mon 3/2

2:00 pm-2:05 pm

2 stops39h 05m

$750

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 Oslo to Seattle

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 Oslo and Seattle?

What is the cheapest month to fly to Seattle?

In general, May is the cheapest month to fly from Oslo to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $486. If you don’t want to visit Seattle in May, then you should wait until October to fly from Oslo, when ticket prices are also cheap, with an average price of $504.

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

You are more likely to see cheaper flights to Seattle from Oslo when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $597 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Oslo for as low as $505 on momondo.

Cheap Oslo to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Oslo to Seattle

Fastest flight time	13h 10m
Direct flights	None

The fastest flight from Oslo to Seattle takes 13h 10m

There are no direct flights from Oslo to Seattle. There are no popular flight routes from Oslo to Seattle.

Search flight deals

How far is Oslo to Seattle/Tacoma Intl by plane?
There are 4550.6 mi between Oslo and Seattle/Tacoma Intl. Typically, this will take 13h 10m by plane in normal conditions.
When did momondo last update prices for flights from Oslo to Seattle/Tacoma Intl Airport?
Prices for flights from Oslo to Seattle/Tacoma Intl Airport are updated daily.
How many operators does momondo search for flights from Oslo to Seattle/Tacoma Intl Airport?
As of January 2026, there are 4 operators available to choose from for flights from Oslo to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Oslo to Seattle/Tacoma Intl Airport?
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 Oslo to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Oslo to Seattle

Compare and see reviews for airlines that fly from Oslo to Seattle with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom $436	Free Cancellation	Rating 6.8 7,756 reviews	Search Lufthansa flights
Icelandair	PriceFrom $436	Free Cancellation	Rating 7.1 606 reviews	Search Icelandair flights
Delta	PriceFrom $455	Free Cancellation	Rating 7.9 8,124 reviews	Search Delta flights
Scandinavian Airlines	PriceFrom $603	Free Cancellation	Rating 7.3 1,674 reviews	Search Scandinavian Airlines flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Marysville

Puyallup

Redmond

Cle Elum

Tukwila

Lakewood

Federal Way

Centralia

Westport

Kirkland

Fife

Tumwater

Why use momondo?

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

It is quick and easy to find Oslo to Seattle flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seattle that suits you.

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

All flight searches from Oslo to Seattle on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Oslo to Seattle 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 Oslo to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Oslo and alert you when they change.