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Cheap flights from Seattle to Oslo from $199

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 8/7. 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.
Multiple Airlines Logo
6:50 pm - 10:05 pm
SEA
-
OSL
18h 15m
1 stop
Multiple Airlines Logo
11:45 am - 10:42 pm
OSL
-
SEA
19h 57m
2 stops
$473Multiple Airlines
Sun, Oct 11 - Sun, Oct 18
Icelandair Logo
3:40 pm - 12:35 pm
SEA
-
OSL
11h 55m
1 stop
Icelandair Logo
4:30 pm - 8:40 pm
OSL
-
SEA
13h 10m
1 stop
$475Icelandair
Sat, Sep 19 - Sat, Sep 26
Multiple Airlines Logo
8:00 am - 2:50 pm
SEA
-
OSL
21h 50m
2 stops
Multiple Airlines Logo
7:10 am - 4:59 pm
OSL
-
SEA
18h 49m
1 stop
$487Multiple Airlines
Sun, Aug 23 - Sun, Aug 30
Multiple Airlines Logo
6:50 pm - 10:05 pm
SEA
-
OSL
18h 15m
1 stop
Multiple Airlines Logo
6:15 am - 2:22 pm
OSL
-
SEA
17h 07m
2 stops
$489Multiple Airlines
Wed, Oct 14 - Sat, Oct 24
Lufthansa Logo
6:50 pm - 10:05 pm
SEA
-
OSL
18h 15m
1 stop
Lufthansa Logo
7:10 am - 4:59 pm
OSL
-
SEA
18h 49m
1 stop
$491Lufthansa
Wed, Aug 19 - Wed, Aug 26
Multiple Airlines Logo
10:10 am - 5:40 pm
SEA
-
OSL
22h 30m
2 stops
Multiple Airlines Logo
6:10 am - 1:20 pm
OSL
-
SEA
16h 10m
1 stop
$492Multiple Airlines
Sun, Nov 1 - Sun, Nov 15
United Airlines Logo
11:03 am - 10:05 pm
SEA
-
OSL
26h 02m
2 stops
United Airlines Logo
7:10 am - 4:59 pm
OSL
-
SEA
18h 49m
1 stop
$497United Airlines
Wed, Aug 19 - Wed, Aug 26
Lufthansa Logo
3:10 pm - 5:40 pm
SEA
-
OSL
17h 30m
1 stop
Lufthansa Logo
6:15 am - 12:10 pm
OSL
-
SEA
14h 55m
1 stop
$499Lufthansa
Sun, Nov 1 - Tue, Nov 10
Scandinavian Airlines Logo
3:55 pm - 8:25 pm
SEA
-
TRF
19h 30m
1 stop
Scandinavian Airlines Logo
6:00 am - 1:45 pm
TRF
-
SEA
16h 45m
1 stop
$637Scandinavian Airlines
Tue, Aug 4 - Tue, Aug 11
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
$638Scandinavian Airlines
Tue, Jun 2 - Sat, Jun 6

Lufthansa flights from Seattle to Oslo

Our best Lufthansa deals on Seattle to Oslo flight tickets
Lufthansa
Aug 19
SEA6:50 pmSeattle/Tacoma Intl
18h 15m
1 stop
OSL10:05 pmOslo Gardermoen
Aug 26
OSL7:10 amOslo Gardermoen
18h 49m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$491
Lufthansa
Nov 1
SEA3:10 pmSeattle/Tacoma Intl
17h 30m
1 stop
OSL5:40 pmOslo Gardermoen
Nov 10
OSL6:15 amOslo Gardermoen
14h 55m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
$499
Lufthansa
Nov 1
SEA3:10 pmSeattle/Tacoma Intl
17h 30m
1 stop
OSL5:40 pmOslo Gardermoen
Nov 10
OSL6:15 amOslo Gardermoen
14h 55m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
$500

United Airlines flights from Seattle to Oslo

Our best United Airlines deals on Seattle to Oslo flight tickets
United Airlines
Aug 19
SEA11:03 amSeattle/Tacoma Intl
26h 02m
2 stops
OSL10:05 pmOslo Gardermoen
Aug 26
OSL7:10 amOslo Gardermoen
18h 49m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$497
United Airlines
Oct 7
SEA6:50 pmSeattle/Tacoma Intl
18h 15m
1 stop
OSL10:05 pmOslo Gardermoen
Oct 18
OSL11:45 amOslo Gardermoen
14h 14m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$504
United Airlines
Nov 13
SEA3:10 pmSeattle/Tacoma Intl
23h 30m
1 stop
OSL11:40 pmOslo Gardermoen
Nov 16
OSL6:45 amOslo Gardermoen
23h 20m
2 stops
SEA9:05 pmSeattle/Tacoma Intl
$505

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 May 18, 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

Sun 10/11

6:50 pm-10:05 pm

1 stop18h 15m

Oslo Gardermoen

Sun 10/18

11:45 am-10:42 pm

2 stops19h 57m

$473
Quickest round-trip

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sat 9/19

3:40 pm-12:35 pm

1 stop11h 55m

Oslo Gardermoen

Sat 9/26

4:30 pm-8:40 pm

1 stop13h 10m

$475

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 8/23

8:00 am-2:50 pm

2 stops21h 50m

Oslo Gardermoen

Sun 8/30

7:10 am-4:59 pm

1 stop18h 49m

$487

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 10/14

6:50 pm-10:05 pm

1 stop18h 15m

Oslo Gardermoen

Sat 10/24

6:15 am-2:22 pm

2 stops17h 07m

$489

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 8/19

6:50 pm-10:05 pm

1 stop18h 15m

Oslo Gardermoen

Wed 8/26

7:10 am-4:59 pm

1 stop18h 49m

$491

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 11/1

10:10 am-5:40 pm

2 stops22h 30m

Oslo Gardermoen

Sun 11/15

6:10 am-1:20 pm

1 stop16h 10m

$492

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 8/19

11:03 am-10:05 pm

2 stops26h 02m

Oslo Gardermoen

Wed 8/26

7:10 am-4:59 pm

1 stop18h 49m

$497

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 11/1

3:10 pm-5:40 pm

1 stop17h 30m

Oslo Gardermoen

Tue 11/10

6:15 am-12:10 pm

1 stop14h 55m

$499

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 8/4

3:55 pm-8:25 pm

1 stop19h 30m

Oslo Sandefjord

Tue 8/11

6:00 am-1:45 pm

1 stop16h 45m

$637

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 6/2

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Sat 6/6

6:00 am-1:45 pm

1 stop16h 45m

$638

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 $548 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
7,988 reviews
Search British Airways flights
IcelandairPriceFrom $392Free CancellationRating
7.0
656 reviews
Search Icelandair flights
DeltaPriceFrom $457Free CancellationRating
7.9
8,451 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $486Free CancellationRating
7.4
1,781 reviews
Search Scandinavian Airlines flights
United AirlinesPriceFrom $491Free CancellationRating
7.4
9,736 reviews
Search United Airlines flights
KLMPriceFrom $498Free CancellationRating
7.8
1,517 reviews
Search KLM flights
LufthansaPriceFrom $520Free CancellationRating
6.8
8,010 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