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Cheap flights from Seattle to Oslo from $229

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 9/29. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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 - 12:05 am
SEA
-
OSL
20h 15m
2 stops
Multiple Airlines Logo
6:45 am - 9:07 pm
OSL
-
SEA
23h 22m
2 stops
$509Multiple Airlines
Sun, Aug 16 - Thu, Aug 27
Lufthansa Logo
6:50 pm - 6:00 pm
SEA
-
OSL
14h 10m
1 stop
Lufthansa Logo
6:55 am - 2:22 pm
OSL
-
SEA
16h 27m
2 stops
$510Lufthansa
Tue, Sep 15 - Tue, Sep 29
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
$511Icelandair
Tue, Aug 18 - Fri, Sep 11
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
$512Icelandair
Sat, Aug 22 - Tue, Sep 15
United Airlines Logo
10:58 pm - 5:15 pm
SEA
-
OSL
33h 17m
2 stops
United Airlines Logo
6:15 am - 6:32 pm
OSL
-
SEA
21h 17m
2 stops
$514United Airlines
Sun, Oct 11 - Sat, Oct 17
United Airlines Logo
8:40 am - 5:55 pm
SEA
-
OSL
24h 15m
2 stops
United Airlines Logo
6:45 am - 4:07 pm
OSL
-
SEA
18h 22m
2 stops
$515United Airlines
Wed, Aug 19 - Fri, Sep 11
Air Canada Logo
8:00 am - 2:50 pm
SEA
-
OSL
21h 50m
2 stops
Air Canada Logo
6:45 am - 9:04 pm
OSL
-
SEA
23h 19m
2 stops
$516Air Canada
Sun, Sep 13 - Mon, Sep 28
Air Canada Logo
8:00 am - 5:15 pm
SEA
-
OSL
24h 15m
2 stops
Air Canada Logo
7:10 am - 9:04 pm
OSL
-
SEA
22h 54m
2 stops
$517Air Canada
Mon, Sep 14 - Thu, Oct 1
Scandinavian Airlines Logo
3:55 pm - 12:25 am
SEA
-
TRF
23h 30m
1 stop
Scandinavian Airlines Logo
6:00 am - 1:45 pm
TRF
-
SEA
16h 45m
1 stop
$546Scandinavian Airlines
Tue, Sep 15 - Tue, Sep 29
Scandinavian Airlines Logo
3:55 pm - 12:25 am
SEA
-
TRF
23h 30m
1 stop
Scandinavian Airlines Logo
6:00 am - 1:45 pm
TRF
-
SEA
16h 45m
1 stop
$547Scandinavian Airlines
Tue, Sep 15 - Tue, Sep 29

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Lufthansa flights from Seattle to Oslo

Our best Lufthansa deals on Seattle to Oslo flight tickets
Lufthansa
Sep 15
SEA6:50 pmSeattle/Tacoma Intl
14h 10m
1 stop
OSL6:00 pmOslo Gardermoen
Sep 29
OSL6:55 amOslo Gardermoen
16h 27m
2 stops
SEA2:22 pmSeattle/Tacoma Intl
$510
Lufthansa
Aug 26
SEA2:10 pmSeattle/Tacoma Intl
19h 15m
1 stop
OSL6:25 pmOslo Gardermoen
Sep 10
OSL7:10 amOslo Gardermoen
18h 49m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$519
Lufthansa
Sep 8
SEA2:10 pmSeattle/Tacoma Intl
18h 55m
1 stop
OSL6:05 pmOslo Gardermoen
Sep 20
OSL6:25 amOslo Gardermoen
25h 17m
2 stops
SEA10:42 pmSeattle/Tacoma Intl
$521

Air Canada flights from Seattle to Oslo

Our best Air Canada deals on Seattle to Oslo flight tickets
Air Canada
Sep 13
SEA8:00 amSeattle/Tacoma Intl
21h 50m
2 stops
OSL2:50 pmOslo Gardermoen
Sep 28
OSL6:45 amOslo Gardermoen
23h 19m
2 stops
SEA9:04 pmSeattle/Tacoma Intl
$516
Air Canada
Sep 14
SEA8:00 amSeattle/Tacoma Intl
24h 15m
2 stops
OSL5:15 pmOslo Gardermoen
Oct 1
OSL7:10 amOslo Gardermoen
22h 54m
2 stops
SEA9:04 pmSeattle/Tacoma Intl
$517
Air Canada
Sep 14
SEA8:00 amSeattle/Tacoma Intl
24h 15m
2 stops
OSL5:15 pmOslo Gardermoen
Sep 30
OSL6:35 amOslo Gardermoen
25h 07m
2 stops
SEA10:42 pmSeattle/Tacoma Intl
$518

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 July 2, 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 8/16

6:50 pm-12:05 am

2 stops20h 15m

Oslo Gardermoen

Thu 8/27

6:45 am-9:07 pm

2 stops23h 22m

$509

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 9/15

6:50 pm-6:00 pm

1 stop14h 10m

Oslo Gardermoen

Tue 9/29

6:55 am-2:22 pm

2 stops16h 27m

$510
Quickest round-trip

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Tue 8/18

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Fri 9/11

4:30 pm-8:40 pm

1 stop13h 10m

$511

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sat 8/22

7:00 pm-3:25 pm

1 stop11h 25m

Oslo Gardermoen

Tue 9/15

4:30 pm-8:40 pm

1 stop13h 10m

$512

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 10/11

10:58 pm-5:15 pm

2 stops33h 17m

Oslo Gardermoen

Sat 10/17

6:15 am-6:32 pm

2 stops21h 17m

$514

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Wed 8/19

8:40 am-5:55 pm

2 stops24h 15m

Oslo Gardermoen

Fri 9/11

6:45 am-4:07 pm

2 stops18h 22m

$515

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Sun 9/13

8:00 am-2:50 pm

2 stops21h 50m

Oslo Gardermoen

Mon 9/28

6:45 am-9:04 pm

2 stops23h 19m

$516

SeattleOslo

SEA - OSL

SEAOSL

Seattle/Tacoma Intl

Mon 9/14

8:00 am-5:15 pm

2 stops24h 15m

Oslo Gardermoen

Thu 10/1

7:10 am-9:04 pm

2 stops22h 54m

$517

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 9/15

3:55 pm-12:25 am

1 stop23h 30m

Oslo Sandefjord

Tue 9/29

6:00 am-1:45 pm

1 stop16h 45m

$546

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 9/15

3:55 pm-12:25 am

1 stop23h 30m

Oslo Sandefjord

Tue 9/29

6:00 am-1:45 pm

1 stop16h 45m

$547

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 $550 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 $351Free CancellationRating
6.7
8,087 reviews
Search British Airways flights
IcelandairPriceFrom $393Free CancellationRating
7.0
695 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $426Free CancellationRating
7.4
1,859 reviews
Search Scandinavian Airlines flights
DeltaPriceFrom $457Free CancellationRating
7.8
8,452 reviews
Search Delta flights
United AirlinesPriceFrom $491Free CancellationRating
7.4
9,921 reviews
Search United Airlines flights
LufthansaPriceFrom $493Free CancellationRating
6.8
8,107 reviews
Search Lufthansa flights
KLMPriceFrom $498Free CancellationRating
7.8
1,532 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