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Cheap flights from Seattle to Oslo from $198

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 10/6. 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

Find the cheapest flights from Seattle to Oslo

Cheap round-trip flights

Enter your travel dates to find the best prices.
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
$525Scandinavian Airlines
Tue, Sep 15 - Tue, Sep 29
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
$526Scandinavian Airlines
Tue, Sep 15 - Tue, Sep 29
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
$536Scandinavian Airlines
Tue, Sep 15 - Tue, Sep 29
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
$600Scandinavian Airlines
Sun, Aug 30 - Fri, Sep 11
Scandinavian Airlines Logo
3:55 pm - 12:25 am
SEA
-
TRF
23h 30m
1 stop
Scandinavian Airlines Logo
6:00 am - 11:00 pm
TRF
-
SEA
26h 00m
2 stops
$613Scandinavian Airlines
Sun, Oct 11 - Thu, Oct 15
Multiple Airlines Logo
3:55 pm - 9:00 pm
SEA
-
TRF
20h 05m
2 stops
Multiple Airlines Logo
3:05 pm - 1:45 pm
TRF
-
SEA
31h 40m
1 stop
$620Multiple Airlines
Sun, Oct 4 - Fri, Oct 9
Scandinavian Airlines Logo
3:55 pm - 2:30 pm
SEA
-
TRF
13h 35m
1 stop
Scandinavian Airlines Logo
3:05 pm - 10:49 pm
TRF
-
SEA
40h 44m
2 stops
$632Scandinavian Airlines
Sun, Oct 4 - Mon, Oct 12
Scandinavian Airlines Logo
3:55 pm - 12:25 am
SEA
-
TRF
23h 30m
1 stop
Scandinavian Airlines Logo
6:00 am - 8:45 pm
TRF
-
SEA
23h 45m
2 stops
$643Scandinavian Airlines
Sun, Oct 11 - Tue, Oct 20
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
$655Scandinavian Airlines
Sat, Sep 5 - Sat, Sep 12
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
$661Scandinavian Airlines
Tue, Aug 11 - Tue, Aug 25

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Scandinavian Airlines flights from Seattle to Oslo Sandefjord Airport

Our best Scandinavian Airlines deals on Seattle to Oslo Sandefjord Airport flight tickets
Scandinavian Airlines
Sep 15
SEA3:55 pmSeattle/Tacoma Intl
13h 35m
1 stop
TRF2:30 pmOslo Sandefjord
Sep 29
TRF6:00 amOslo Sandefjord
16h 45m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
$525
Scandinavian Airlines
Sep 15
SEA3:55 pmSeattle/Tacoma Intl
13h 35m
1 stop
TRF2:30 pmOslo Sandefjord
Sep 29
TRF6:00 amOslo Sandefjord
16h 45m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
$526
Scandinavian Airlines
Sep 15
SEA3:55 pmSeattle/Tacoma Intl
13h 35m
1 stop
TRF2:30 pmOslo Sandefjord
Sep 29
TRF6:00 amOslo Sandefjord
16h 45m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
$536

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Oslo Sandefjord Airport 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 27, 2026.
Use the filters below to find and compare flights from Seattle to Oslo Sandefjord Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 9/15

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Tue 9/29

6:00 am-1:45 pm

1 stop16h 45m

$525

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 9/15

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Tue 9/29

6:00 am-1:45 pm

1 stop16h 45m

$526

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 9/15

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Tue 9/29

6:00 am-1:45 pm

1 stop16h 45m

$536

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 8/30

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Fri 9/11

6:00 am-1:45 pm

1 stop16h 45m

$600

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 10/11

3:55 pm-12:25 am

1 stop23h 30m

Oslo Sandefjord

Thu 10/15

6:00 am-11:00 pm

2 stops26h 00m

$613

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 10/4

3:55 pm-9:00 pm

2 stops20h 05m

Oslo Sandefjord

Fri 10/9

3:05 pm-1:45 pm

1 stop31h 40m

$620

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 10/4

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Mon 10/12

3:05 pm-10:49 pm

2 stops40h 44m

$632

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 10/11

3:55 pm-12:25 am

1 stop23h 30m

Oslo Sandefjord

Tue 10/20

6:00 am-8:45 pm

2 stops23h 45m

$643

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sat 9/5

3:55 pm-12:25 am

1 stop23h 30m

Oslo Sandefjord

Sat 9/12

6:00 am-1:45 pm

1 stop16h 45m

$655

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 8/11

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Tue 8/25

6:00 am-1:45 pm

1 stop16h 45m

$661

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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When to book flights from Seattle to Oslo Sandefjord Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Oslo Sandefjord Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Oslo Sandefjord Airport (SEA to TRF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Oslo Sandefjord Airport

Fastest flight time

13h 35m

Direct flights

None
The fastest flight from Seattle to Oslo Sandefjord Airport takes 13h 35m
There are no direct flights from Seattle to Oslo Sandefjord Airport. There are no popular flight routes from Seattle to Oslo Sandefjord Airport.
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Frequently asked questions about flying from Seattle to Oslo Sandefjord Airport

  • How far is Seattle/Tacoma Intl to Oslo Sandefjord by plane?

    Seattle/Tacoma Intl and Oslo Sandefjord are 4583.4 mi apart from one another. A reasonable flight in good conditions will take 13h 35m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Oslo Sandefjord Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Oslo Sandefjord Airport were last updated today.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Oslo Sandefjord Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Oslo Sandefjord Airport.

  • What documentation or ID do you need to fly to Oslo Sandefjord Airport?

    The required travel and health documents for your Oslo Sandefjord Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Oslo Sandefjord Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from Seattle to Oslo Sandefjord Airport

  • How do I get Price Alerts for flights from Seattle to Oslo Sandefjord Airport?

    Price Alerts will notify you by email when the price for flights to Oslo Sandefjord Airport from Seattle decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Seattle to Oslo Sandefjord Airport with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near Oslo?

Book flights to Oslo if you plan to visit one of these locations
Sandefjord

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Oslo?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Oslo. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Seattle to Oslo with flexible booking policies on momondo?

All flight searches from Seattle to Oslo on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seattle to Oslo?

momondo helps you find the best flight between Seattle and Oslo by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Oslo right now. Can momondo alert me if prices change?

Price alerts on flights to Oslo from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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