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Cheap flights from Seattle to Oslo from $170

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 4/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Seattle to Oslo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
7:00 pm - 12:35 pm
SEA
-
OSL
32h 35m
1 stop
Icelandair Logo
1:50 pm - 5:55 pm
OSL
-
SEA
13h 05m
1 stop
$365Icelandair
Sun, Mar 29 - Tue, Apr 14
Icelandair Logo
7:00 pm - 12:35 pm
SEA
-
OSL
32h 35m
1 stop
Icelandair Logo
1:50 pm - 8:40 pm
OSL
-
SEA
15h 50m
1 stop
$366Icelandair
Mon, Apr 6 - Mon, Apr 20
Icelandair Logo
3:40 pm - 12:35 pm
SEA
-
OSL
11h 55m
1 stop
Icelandair Logo
1:50 pm - 8:40 pm
OSL
-
SEA
15h 50m
1 stop
$398Icelandair
Tue, Apr 14 - Tue, Apr 21
Icelandair Logo
7:00 pm - 12:35 pm
SEA
-
OSL
32h 35m
1 stop
Icelandair Logo
1:50 pm - 8:40 pm
OSL
-
SEA
15h 50m
1 stop
$400Icelandair
Mon, Apr 6 - Tue, Apr 14
Icelandair Logo
7:00 pm - 3:25 pm
SEA
-
OSL
11h 25m
1 stop
Icelandair Logo
4:30 pm - 8:40 pm
OSL
-
SEA
13h 10m
1 stop
$414Icelandair
Fri, May 8 - Fri, May 22
Icelandair Logo
7:00 pm - 3:25 pm
SEA
-
OSL
11h 25m
1 stop
Icelandair Logo
4:30 pm - 5:55 pm
OSL
-
SEA
34h 25m
1 stop
$416Icelandair
Fri, May 1 - Sun, May 10
Icelandair Logo
7:00 pm - 12:35 pm
SEA
-
OSL
32h 35m
1 stop
Icelandair Logo
4:30 pm - 5:55 pm
OSL
-
SEA
34h 25m
1 stop
$418Icelandair
Sun, May 10 - Sun, May 24
Icelandair Logo
7:00 pm - 3:25 pm
SEA
-
OSL
11h 25m
1 stop
Icelandair Logo
1:50 pm - 8:40 pm
OSL
-
SEA
15h 50m
1 stop
$419Icelandair
Wed, May 13 - Tue, May 26
Scandinavian Airlines Logo
3:55 pm - 2:30 pm
SEA
-
TRF
13h 35m
1 stop
Scandinavian Airlines Logo
6:00 am - 1:45 pm
TRF
-
SEA
16h 45m
1 stop
$547Scandinavian Airlines
Tue, Jun 2 - Tue, Jun 9
Scandinavian Airlines Logo
3:55 pm - 2:30 pm
SEA
-
TRF
13h 35m
1 stop
Scandinavian Airlines Logo
3:05 pm - 1:45 pm
TRF
-
SEA
31h 40m
1 stop
$572Scandinavian Airlines
Tue, Jun 2 - Mon, Jun 8

Lufthansa flights from Seattle to Oslo

Our best Lufthansa deals on Seattle to Oslo flight tickets
Lufthansa
Apr 1
SEA6:50 pmSeattle/Tacoma Intl
18h 15m
1 stop
OSL10:05 pmOslo Gardermoen
Apr 8
OSL6:35 amOslo Gardermoen
14h 45m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
$504
Lufthansa
Feb 27
SEA3:10 pmSeattle/Tacoma Intl
23h 30m
1 stop
OSL11:40 pmOslo Gardermoen
Mar 3
OSL6:15 amOslo Gardermoen
14h 55m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
$505
Lufthansa
May 8
SEA9:55 amSeattle/Tacoma Intl
23h 40m
2 stops
OSL6:35 pmOslo Gardermoen
May 22
OSL11:45 amOslo Gardermoen
14h 14m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$514

Icelandair flights from Seattle to Oslo

Our best Icelandair deals on Seattle to Oslo flight tickets
Icelandair
Apr 6
SEA7:00 pmSeattle/Tacoma Intl
32h 35m
1 stop
OSL12:35 pmOslo Gardermoen
Apr 20
OSL1:50 pmOslo Gardermoen
15h 50m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$366
Icelandair
Apr 14
SEA3:40 pmSeattle/Tacoma Intl
11h 55m
1 stop
OSL12:35 pmOslo Gardermoen
Apr 21
OSL1:50 pmOslo Gardermoen
15h 50m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$398
Icelandair
Apr 6
SEA7:00 pmSeattle/Tacoma Intl
32h 35m
1 stop
OSL12:35 pmOslo Gardermoen
Apr 14
OSL1:50 pmOslo Gardermoen
15h 50m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$400

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Oslo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 20, 2026.
Use the filters below to find and compare flights from Seattle to Oslo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 3/29

7:00 pm-12:35 pm

1 stop32h 35m

Oslo Gardermoen

Tue 4/14

1:50 pm-5:55 pm

1 stop13h 05m

$365

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 4/6

7:00 pm-12:35 pm

1 stop32h 35m

Oslo Gardermoen

Mon 4/20

1:50 pm-8:40 pm

1 stop15h 50m

$366

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 4/14

3:40 pm-12:35 pm

1 stop11h 55m

Oslo Gardermoen

Tue 4/21

1:50 pm-8:40 pm

1 stop15h 50m

$398

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 4/6

7:00 pm-12:35 pm

1 stop32h 35m

Oslo Gardermoen

Tue 4/14

1:50 pm-8:40 pm

1 stop15h 50m

$400

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 5/8

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Fri 5/22

4:30 pm-8:40 pm

1 stop13h 10m

$414

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 5/1

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Sun 5/10

4:30 pm-5:55 pm

1 stop34h 25m

$416

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 5/10

7:00 pm-12:35 pm

1 stop32h 35m

Oslo Gardermoen

Sun 5/24

4:30 pm-5:55 pm

1 stop34h 25m

$418

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 5/13

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Tue 5/26

1:50 pm-8:40 pm

1 stop15h 50m

$419

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 6/2

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Tue 6/9

6:00 am-1:45 pm

1 stop16h 45m

$547

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 6/2

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Mon 6/8

3:05 pm-1:45 pm

1 stop31h 40m

$572

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $421. 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 $482.

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 $572 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 $463 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

11h 25m

Direct flights

None
The fastest flight from Seattle to Oslo takes 11h 25m
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?

  • 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 AirwaysPriceFrom $353Free CancellationRating
6.7
7,755 reviews
Search British Airways flights
IcelandairPriceFrom $391Free CancellationRating
7.1
615 reviews
Search Icelandair flights
DeltaPriceFrom $468Free CancellationRating
7.9
8,215 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $486Free CancellationRating
7.3
1,692 reviews
Search Scandinavian Airlines flights
FinnairPriceFrom $491Free CancellationRating
7.6
1,364 reviews
Search Finnair flights
KLMPriceFrom $506Free CancellationRating
7.7
1,458 reviews
Search KLM flights
United AirlinesPriceFrom $517Free CancellationRating
7.4
9,324 reviews
Search United Airlines flights
LufthansaPriceFrom $538Free CancellationRating
6.8
7,789 reviews
Search Lufthansa 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.

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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
Oslo Gardermoen Airport
Oslo Sandefjord Airport