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Cheap flights from Seattle to Oslo from $370

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 1/14. 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.
Scandinavian Airlines Logo
10:55 am - 2:30 pm
SEA
-
TRF
18h 35m2 stops
Scandinavian Airlines Logo
6:00 am - 11:35 pm
TRF
-
SEA
26h 35m2 stops
$616Scandinavian Airlines
Tue, Apr 21 - Thu, Apr 30
Scandinavian Airlines Logo
11:35 am - 4:35 pm
SEA
-
TRF
20h 00m2 stops
Scandinavian Airlines Logo
2:35 pm - 10:25 pm
TRF
-
SEA
40h 50m2 stops
$625Scandinavian Airlines
Sat, Feb 21 - Mon, Mar 2
Scandinavian Airlines Logo
10:55 am - 2:30 pm
SEA
-
TRF
18h 35m2 stops
Scandinavian Airlines Logo
3:05 pm - 10:05 pm
TRF
-
SEA
40h 00m2 stops
$666Scandinavian Airlines
Tue, Apr 21 - Fri, May 1
Scandinavian Airlines Logo
10:55 am - 2:30 pm
SEA
-
TRF
18h 35m2 stops
Scandinavian Airlines Logo
3:05 pm - 11:35 pm
TRF
-
SEA
41h 30m2 stops
$696Scandinavian Airlines
Thu, Apr 23 - Sun, May 3
Scandinavian Airlines Logo
10:55 am - 12:25 am
SEA
-
TRF
28h 30m2 stops
Scandinavian Airlines Logo
6:00 am - 11:35 pm
TRF
-
SEA
26h 35m2 stops
$746Scandinavian Airlines
Thu, Apr 23 - Fri, May 1
Multiple Airlines Logo
7:00 pm - 6:00 pm
SEA
-
TRF
14h 00m2 stops
Multiple Airlines Logo
12:10 pm - 5:55 pm
TRF
-
SEA
14h 45m2 stops
$767Multiple Airlines
Sat, Apr 25 - Wed, May 20
Multiple Airlines Logo
7:00 pm - 6:35 pm
SEA
-
TRF
14h 35m2 stops
Multiple Airlines Logo
12:10 pm - 5:55 pm
TRF
-
SEA
14h 45m2 stops
$773Multiple Airlines
Fri, May 8 - Fri, May 22
Multiple Airlines Logo
7:00 pm - 6:35 pm
SEA
-
TRF
14h 35m2 stops
Multiple Airlines Logo
12:10 pm - 5:55 pm
TRF
-
SEA
14h 45m2 stops
$774Multiple Airlines
Fri, May 8 - Fri, May 22
Scandinavian Airlines Logo
9:50 am - 2:30 pm
SEA
-
TRF
19h 40m2 stops
Scandinavian Airlines Logo
3:05 pm - 1:45 pm
TRF
-
SEA
31h 40m1 stop
$792Scandinavian Airlines
Sun, May 10 - Fri, May 29
Scandinavian Airlines Logo
11:10 am - 2:30 pm
SEA
-
TRF
18h 20m2 stops
Scandinavian Airlines Logo
3:05 pm - 11:35 pm
TRF
-
SEA
41h 30m2 stops
$801Scandinavian Airlines
Wed, Apr 22 - Sun, May 3

Scandinavian Airlines flights from Seattle to Oslo Sandefjord Airport

Our best Scandinavian Airlines deals on Seattle to Oslo Sandefjord Airport flight tickets
Scandinavian Airlines
Apr 21
SEA10:55 amSeattle/Tacoma Intl
18h 35m
2 stops
TRF2:30 pmOslo Sandefjord
Apr 30
TRF6:00 amOslo Sandefjord
26h 35m
2 stops
SEA11:35 pmSeattle/Tacoma Intl
$616
Find similar
Scandinavian Airlines
Feb 21
SEA7:10 amSeattle/Tacoma Intl
24h 25m
2 stops
TRF4:35 pmOslo Sandefjord
Mar 3
TRF2:35 pmOslo Sandefjord
41h 50m
2 stops
SEA11:25 pmSeattle/Tacoma Intl
$625
Find similar
Scandinavian Airlines
Feb 1
SEA11:17 amSeattle/Tacoma Intl
41h 48m
2 stops
TRF2:05 pmOslo Sandefjord
Feb 5
TRF2:35 pmOslo Sandefjord
40h 50m
2 stops
SEA10:25 pmSeattle/Tacoma Intl
$655
Find similar

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 December 18, 2025.
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

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 4/21

10:55 am-2:30 pm

2 stops18h 35m

Oslo Sandefjord

Thu 4/30

6:00 am-11:35 pm

2 stops26h 35m

$616

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sat 2/21

11:35 am-4:35 pm

2 stops20h 00m

Oslo Sandefjord

Mon 3/2

2:35 pm-10:25 pm

2 stops40h 50m

$625

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 4/21

10:55 am-2:30 pm

2 stops18h 35m

Oslo Sandefjord

Fri 5/1

3:05 pm-10:05 pm

2 stops40h 00m

$666

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Thu 4/23

10:55 am-2:30 pm

2 stops18h 35m

Oslo Sandefjord

Sun 5/3

3:05 pm-11:35 pm

2 stops41h 30m

$696

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Thu 4/23

10:55 am-12:25 am

2 stops28h 30m

Oslo Sandefjord

Fri 5/1

6:00 am-11:35 pm

2 stops26h 35m

$746

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sat 4/25

7:00 pm-6:00 pm

2 stops14h 00m

Oslo Sandefjord

Wed 5/20

12:10 pm-5:55 pm

2 stops14h 45m

$767

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Fri 5/8

7:00 pm-6:35 pm

2 stops14h 35m

Oslo Sandefjord

Fri 5/22

12:10 pm-5:55 pm

2 stops14h 45m

$773

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Fri 5/8

7:00 pm-6:35 pm

2 stops14h 35m

Oslo Sandefjord

Fri 5/22

12:10 pm-5:55 pm

2 stops14h 45m

$774

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 5/10

9:50 am-2:30 pm

2 stops19h 40m

Oslo Sandefjord

Fri 5/29

3:05 pm-1:45 pm

1 stop31h 40m

$792

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Wed 4/22

11:10 am-2:30 pm

2 stops18h 20m

Oslo Sandefjord

Sun 5/3

3:05 pm-11:35 pm

2 stops41h 30m

$801

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 Sandefjord Airport

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 airline that flies from Seattle/Tacoma Intl to Oslo Sandefjord?

Lufthansa is the most popular carrier operating from Seattle/Tacoma Intl to Oslo Sandefjord

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

14h 00m

Direct flights

None
The fastest flight from Seattle to Oslo Sandefjord Airport takes 14h 00m
There are no direct flights from Seattle to Oslo Sandefjord Airport. There are no popular flight routes from Seattle to Oslo Sandefjord Airport.
Search flight deals

  • 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 14h 00m.

  • 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.

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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Find better results for your trip to Oslo

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