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Cheap flights from Seattle to Oslo from $233

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 4/1. 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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Find the cheapest flights from Seattle to Oslo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
2:35 pm - 8:35 pm
SEA
-
OSL
21h 00m
1 stop
Icelandair Logo
9:30 pm - 5:00 pm
OSL
-
SEA
28h 30m
1 stop
$365Icelandair
Sat, Jan 31 - Sun, Feb 15
Icelandair Logo
2:35 pm - 11:35 am
SEA
-
OSL
12h 00m
1 stop
Icelandair Logo
1:10 pm - 6:00 pm
OSL
-
SEA
12h 50m
1 stop
$395Icelandair
Mon, Mar 2 - Tue, Mar 17
Icelandair Logo
7:00 pm - 12:35 pm
SEA
-
OSL
32h 35m
1 stop
Icelandair Logo
4:30 pm - 8:40 pm
OSL
-
SEA
13h 10m
1 stop
$397Icelandair
Thu, Apr 23 - Thu, Apr 30
Icelandair Logo
7:00 pm - 3:25 pm
SEA
-
OSL
11h 25m
1 stop
Icelandair Logo
1:50 pm - 5:55 pm
OSL
-
SEA
13h 05m
1 stop
$410Icelandair
Fri, May 1 - Sat, May 9
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
$412Icelandair
Thu, Apr 30 - Sun, May 10
British Airways Logo
5:45 pm - 10:55 am
SEA
-
OSL
32h 10m
2 stops
British Airways Logo
6:55 am - 2:36 pm
OSL
-
SEA
40h 41m
2 stops
$449British Airways
Wed, Feb 4 - Wed, Feb 11
British Airways Logo
1:37 pm - 10:40 pm
SEA
-
OSL
25h 03m
2 stops
British Airways Logo
5:45 pm - 11:35 am
OSL
-
SEA
26h 50m
1 stop
$455British Airways
Mon, Mar 23 - Tue, Mar 31
Scandinavian Airlines Logo
11:45 am - 2:05 pm
SEA
-
TRF
42h 20m
2 stops
Scandinavian Airlines Logo
3:05 pm - 11:23 pm
TRF
-
SEA
41h 18m
2 stops
$721Scandinavian Airlines
Wed, Mar 18 - Sun, Mar 29
Scandinavian Airlines Logo
7:15 am - 1:55 pm
SEA
-
TRF
22h 40m
2 stops
Scandinavian Airlines Logo
6:00 am - 7:05 pm
TRF
-
SEA
22h 05m
2 stops
$818Scandinavian Airlines
Fri, Mar 27 - Tue, Apr 7
Multiple Airlines Logo
2:35 pm - 2:05 pm
SEA
-
TRF
14h 30m
2 stops
Multiple Airlines Logo
12:10 pm - 5:55 pm
TRF
-
SEA
14h 45m
2 stops
$2,985Multiple Airlines
Thu, Feb 12 - Wed, Jun 10

Icelandair flights from Seattle to Oslo

Our best Icelandair deals on Seattle to Oslo flight tickets
Icelandair
Jan 31
SEA2:35 pmSeattle/Tacoma Intl
21h 00m
1 stop
OSL8:35 pmOslo Gardermoen
Feb 15
OSL9:30 pmOslo Gardermoen
28h 30m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$365
Icelandair
Feb 2
SEA2:35 pmSeattle/Tacoma Intl
12h 00m
1 stop
OSL11:35 amOslo Gardermoen
Feb 15
OSL9:30 pmOslo Gardermoen
28h 30m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$376
Icelandair
Mar 2
SEA2:35 pmSeattle/Tacoma Intl
12h 00m
1 stop
OSL11:35 amOslo Gardermoen
Mar 17
OSL1:10 pmOslo Gardermoen
12h 50m
1 stop
SEA6:00 pmSeattle/Tacoma Intl
$395

Lufthansa flights from Seattle to Oslo

Our best Lufthansa deals on Seattle to Oslo flight tickets
Lufthansa
Mar 27
SEA4:10 pmSeattle/Tacoma Intl
23h 30m
1 stop
OSL11:40 pmOslo Gardermoen
Apr 10
OSL7:10 amOslo Gardermoen
18h 49m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$491
Lufthansa
Mar 27
SEA4:10 pmSeattle/Tacoma Intl
17h 30m
1 stop
OSL5:40 pmOslo Gardermoen
Apr 7
OSL6:55 amOslo Gardermoen
14h 25m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
$498
Lufthansa
Mar 30
SEA10:10 amSeattle/Tacoma Intl
26h 55m
2 stops
OSL10:05 pmOslo Gardermoen
Apr 13
OSL7:10 amOslo Gardermoen
21h 08m
2 stops
SEA7:18 pmSeattle/Tacoma Intl
$500

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 January 19, 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

Sat 1/31

2:35 pm-8:35 pm

1 stop21h 00m

Oslo Gardermoen

Sun 2/15

9:30 pm-5:00 pm

1 stop28h 30m

$365

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 3/2

2:35 pm-11:35 am

1 stop12h 00m

Oslo Gardermoen

Tue 3/17

1:10 pm-6:00 pm

1 stop12h 50m

$395

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Thu 4/23

7:00 pm-12:35 pm

1 stop32h 35m

Oslo Gardermoen

Thu 4/30

4:30 pm-8:40 pm

1 stop13h 10m

$397

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Fri 5/1

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Sat 5/9

1:50 pm-5:55 pm

1 stop13h 05m

$410

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Thu 4/30

7:00 pm-12:35 pm

1 stop32h 35m

Oslo Gardermoen

Sun 5/10

1:50 pm-8:40 pm

1 stop15h 50m

$412

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 2/4

5:45 pm-10:55 am

2 stops32h 10m

Oslo Gardermoen

Wed 2/11

6:55 am-2:36 pm

2 stops40h 41m

$449

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 3/23

1:37 pm-10:40 pm

2 stops25h 03m

Oslo Gardermoen

Tue 3/31

5:45 pm-11:35 am

1 stop26h 50m

$455

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Wed 3/18

11:45 am-2:05 pm

2 stops42h 20m

Oslo Sandefjord

Sun 3/29

3:05 pm-11:23 pm

2 stops41h 18m

$721

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Fri 3/27

7:15 am-1:55 pm

2 stops22h 40m

Oslo Sandefjord

Tue 4/7

6:00 am-7:05 pm

2 stops22h 05m

$818

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Thu 2/12

2:35 pm-2:05 pm

2 stops14h 30m

Oslo Sandefjord

Wed 6/10

12:10 pm-5:55 pm

2 stops14h 45m

$2,985

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 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 $422. 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 $586 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 $533 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
7,689 reviews
Search British Airways flights
IcelandairPriceFrom $400Free CancellationRating
7.1
597 reviews
Search Icelandair flights
DeltaPriceFrom $468Free CancellationRating
7.9
8,075 reviews
Search Delta flights
American AirlinesPriceFrom $488Free CancellationRating
7.2
11,160 reviews
Search American Airlines flights
Scandinavian AirlinesPriceFrom $492Free CancellationRating
7.3
1,655 reviews
Search Scandinavian Airlines flights
United AirlinesPriceFrom $518Free CancellationRating
7.4
9,177 reviews
Search United Airlines flights
KLMPriceFrom $524Free CancellationRating
7.7
1,441 reviews
Search KLM flights
Air FrancePriceFrom $526Free CancellationRating
7.4
1,523 reviews
Search Air France flights
LufthansaPriceFrom $538Free CancellationRating
6.8
7,731 reviews
Search Lufthansa flights
FinnairPriceFrom $569Free CancellationRating
7.6
1,351 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.

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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