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Cheap flights from Seattle to Oslo from $186

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 11/12. 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
1 adult, Economy, 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.
Lufthansa Logo
7:00 am - 10:05 pm
SEA
-
OSL
30h 05m
2 stops
Lufthansa Logo
6:45 am - 11:55 am
OSL
-
SEA
14h 10m
1 stop
$515Lufthansa
Tue, Sep 1 - Thu, Sep 10
United Airlines Logo
11:50 pm - 5:10 pm
SEA
-
OSL
32h 20m
2 stops
United Airlines Logo
6:45 am - 9:05 pm
OSL
-
SEA
23h 20m
2 stops
$517United Airlines
Sun, Nov 1 - Tue, Nov 10
United Airlines Logo
10:45 pm - 5:10 pm
SEA
-
OSL
33h 25m
2 stops
United Airlines Logo
6:45 am - 9:05 pm
OSL
-
SEA
23h 20m
2 stops
$518United Airlines
Sun, Nov 1 - Tue, Nov 10
United Airlines Logo
8:00 am - 6:00 pm
SEA
-
OSL
25h 00m
2 stops
United Airlines Logo
6:55 am - 6:32 pm
OSL
-
SEA
20h 37m
2 stops
$519United Airlines
Tue, Sep 1 - Tue, Sep 8
Lufthansa Logo
6:50 pm - 10:05 pm
SEA
-
OSL
18h 15m
1 stop
Lufthansa Logo
9:55 am - 10:42 pm
OSL
-
SEA
21h 47m
2 stops
$520Lufthansa
Tue, Sep 15 - Tue, Sep 29
Air Canada Logo
8:00 am - 3:15 pm
SEA
-
OSL
22h 15m
2 stops
Air Canada Logo
6:25 am - 6:32 pm
OSL
-
SEA
21h 07m
2 stops
$523Air Canada
Tue, Sep 8 - Sun, Sep 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
$525Icelandair
Sun, Aug 16 - Thu, Aug 27
Scandinavian Airlines Logo
3:55 pm - 12:25 am
SEA
-
TRF
23h 30m
1 stop
Scandinavian Airlines Logo
2:35 pm - 10:12 pm
TRF
-
SEA
39h 37m
2 stops
$660Scandinavian Airlines
Sun, Oct 11 - Tue, Oct 27
Scandinavian Airlines Logo
3:55 pm - 8:25 pm
SEA
-
TRF
19h 30m
1 stop
Scandinavian Airlines Logo
8:55 pm - 1:45 pm
TRF
-
SEA
25h 50m
1 stop
$672Scandinavian Airlines
Sun, Jul 5 - Mon, Jul 20
Multiple Airlines Logo
7:00 pm - 9:10 pm
SEA
-
TRF
17h 10m
2 stops
Multiple Airlines Logo
6:25 pm - 5:55 pm
TRF
-
SEA
32h 30m
2 stops
$757Multiple Airlines
Mon, Aug 24 - Mon, Aug 31

Icelandair flights from Seattle to Oslo

Our best Icelandair deals on Seattle to Oslo flight tickets
Icelandair
Sep 18
SEA3:40 pmSeattle/Tacoma Intl
11h 55m
1 stop
OSL12:35 pmOslo Gardermoen
Sep 26
OSL4:30 pmOslo Gardermoen
13h 10m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$514
Icelandair
Aug 3
SEA11:25 pmSeattle/Tacoma Intl
31h 00m
1 stop
OSL3:25 pmOslo Gardermoen
Aug 12
OSL4:30 pmOslo Gardermoen
13h 10m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$528
Icelandair
Aug 4
SEA11:25 pmSeattle/Tacoma Intl
31h 00m
1 stop
OSL3:25 pmOslo Gardermoen
Aug 18
OSL4:30 pmOslo Gardermoen
28h 15m
1 stop
SEA11:45 amSeattle/Tacoma Intl
$530

Lufthansa flights from Seattle to Oslo

Our best Lufthansa deals on Seattle to Oslo flight tickets
Lufthansa
Sep 1
SEA7:00 amSeattle/Tacoma Intl
30h 05m
2 stops
OSL10:05 pmOslo Gardermoen
Sep 10
OSL6:45 amOslo Gardermoen
14h 10m
1 stop
SEA11:55 amSeattle/Tacoma Intl
$515
Lufthansa
Sep 15
SEA6:50 pmSeattle/Tacoma Intl
18h 15m
1 stop
OSL10:05 pmOslo Gardermoen
Sep 29
OSL9:55 amOslo Gardermoen
21h 47m
2 stops
SEA10:42 pmSeattle/Tacoma Intl
$520
Lufthansa
Jun 16
SEA7:20 pmSeattle/Tacoma Intl
41h 45m
2 stops
OSL10:05 pmOslo Gardermoen
Aug 20
OSL7:10 amOslo Gardermoen
18h 49m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$521

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 June 4, 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

Cheapest round-trip

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 9/1

7:00 am-10:05 pm

2 stops30h 05m

Oslo Gardermoen

Thu 9/10

6:45 am-11:55 am

1 stop14h 10m

$515

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 11/1

11:50 pm-5:10 pm

2 stops32h 20m

Oslo Gardermoen

Tue 11/10

6:45 am-9:05 pm

2 stops23h 20m

$517

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 11/1

10:45 pm-5:10 pm

2 stops33h 25m

Oslo Gardermoen

Tue 11/10

6:45 am-9:05 pm

2 stops23h 20m

$518

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 9/1

8:00 am-6:00 pm

2 stops25h 00m

Oslo Gardermoen

Tue 9/8

6:55 am-6:32 pm

2 stops20h 37m

$519

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 9/15

6:50 pm-10:05 pm

1 stop18h 15m

Oslo Gardermoen

Tue 9/29

9:55 am-10:42 pm

2 stops21h 47m

$520

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 9/8

8:00 am-3:15 pm

2 stops22h 15m

Oslo Gardermoen

Sun 9/20

6:25 am-6:32 pm

2 stops21h 07m

$523
Quickest round-trip

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 8/16

3:40 pm-12:35 pm

1 stop11h 55m

Oslo Gardermoen

Thu 8/27

1:50 pm-8:40 pm

1 stop15h 50m

$525

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 10/11

3:55 pm-12:25 am

1 stop23h 30m

Oslo Sandefjord

Tue 10/27

2:35 pm-10:12 pm

2 stops39h 37m

$660

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 7/5

3:55 pm-8:25 pm

1 stop19h 30m

Oslo Sandefjord

Mon 7/20

8:55 pm-1:45 pm

1 stop25h 50m

$672

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Mon 8/24

7:00 pm-9:10 pm

2 stops17h 10m

Oslo Sandefjord

Mon 8/31

6:25 pm-5:55 pm

2 stops32h 30m

$757

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 September is, on average, the cheapest month to fly to Oslo from Seattle, with most prices found around $245. If you’re not able to fly to Oslo in September, then April is your next best option. Flight prices from Seattle to Oslo during April average around $308.

How far in advance should I book a flight from Seattle 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 $549 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 $494 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

Frequently asked questions about flying from Seattle to Oslo

  • 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
8,027 reviews
Search British Airways flights
IcelandairPriceFrom $393Free CancellationRating
7.0
665 reviews
Search Icelandair flights
DeltaPriceFrom $457Free CancellationRating
7.8
8,393 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $486Free CancellationRating
7.4
1,806 reviews
Search Scandinavian Airlines flights
United AirlinesPriceFrom $491Free CancellationRating
7.4
9,777 reviews
Search United Airlines flights
LufthansaPriceFrom $495Free CancellationRating
6.8
8,036 reviews
Search Lufthansa flights
KLMPriceFrom $498Free CancellationRating
7.8
1,524 reviews
Search KLM 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