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Cheap flights from Seattle to Oslo from $319

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 1/13. 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
6:05 am - 2:05 pm
SEA
-
TRF
23h 00m2 stops
Scandinavian Airlines Logo
2:35 pm - 10:20 pm
TRF
-
SEA
39h 45m2 stops
$520Scandinavian Airlines
Mon, Mar 2 - Thu, Mar 12
Scandinavian Airlines Logo
10:55 am - 12:25 am
SEA
-
TRF
28h 30m2 stops
Scandinavian Airlines Logo
6:00 am - 10:17 pm
TRF
-
SEA
25h 17m2 stops
$577Scandinavian Airlines
Sun, May 3 - Thu, Jun 4
Scandinavian Airlines Logo
2:00 pm - 2:05 pm
SEA
-
TRF
39h 05m2 stops
Scandinavian Airlines Logo
2:35 pm - 9:52 pm
TRF
-
SEA
40h 17m2 stops
$590Scandinavian Airlines
Mon, Feb 23 - Fri, Feb 27
Scandinavian Airlines Logo
10:55 am - 2:30 pm
SEA
-
TRF
18h 35m2 stops
Scandinavian Airlines Logo
6:00 am - 1:45 pm
TRF
-
SEA
16h 45m1 stop
$597Scandinavian Airlines
Sun, May 3 - Sat, Jun 6
Scandinavian Airlines Logo
10:55 am - 2:30 pm
SEA
-
TRF
18h 35m2 stops
Scandinavian Airlines Logo
6:00 am - 10:17 pm
TRF
-
SEA
25h 17m2 stops
$617Scandinavian Airlines
Mon, May 4 - Thu, Jun 4
Scandinavian Airlines Logo
2:30 pm - 12:25 am
SEA
-
TRF
24h 55m2 stops
Scandinavian Airlines Logo
3:05 pm - 1:45 pm
TRF
-
SEA
31h 40m1 stop
$623Scandinavian Airlines
Mon, Jun 1 - Mon, Jun 15
Scandinavian Airlines Logo
7:20 am - 2:30 pm
SEA
-
TRF
22h 10m2 stops
Scandinavian Airlines Logo
6:00 am - 10:17 pm
TRF
-
SEA
25h 17m2 stops
$631Scandinavian Airlines
Wed, May 6 - Wed, May 13
Scandinavian Airlines Logo
3:55 pm - 2:30 pm
SEA
-
TRF
13h 35m1 stop
Scandinavian Airlines Logo
6:00 am - 1:45 pm
TRF
-
SEA
16h 45m1 stop
$633Scandinavian Airlines
Sun, May 31 - Tue, Jun 9
Scandinavian Airlines Logo
7:20 am - 2:30 pm
SEA
-
TRF
22h 10m2 stops
Scandinavian Airlines Logo
6:00 am - 1:45 pm
TRF
-
SEA
16h 45m1 stop
$637Scandinavian Airlines
Mon, May 4 - Fri, Jun 5
Scandinavian Airlines Logo
2:00 pm - 2:05 pm
SEA
-
TRF
39h 05m2 stops
Scandinavian Airlines Logo
2:35 pm - 9:52 pm
TRF
-
SEA
40h 17m2 stops
$660Scandinavian Airlines
Mon, Feb 23 - Fri, Feb 27

Scandinavian Airlines flights from Seattle to Oslo Sandefjord Airport

Our best Scandinavian Airlines deals on Seattle to Oslo Sandefjord Airport flight tickets
Scandinavian Airlines
Mar 2
SEA6:05 amSeattle/Tacoma Intl
23h 00m
2 stops
TRF2:05 pmOslo Sandefjord
Mar 12
TRF2:35 pmOslo Sandefjord
39h 45m
2 stops
SEA10:20 pmSeattle/Tacoma Intl
$520
Find similar
Scandinavian Airlines
May 3
SEA10:55 amSeattle/Tacoma Intl
28h 30m
2 stops
TRF12:25 amOslo Sandefjord
Jun 4
TRF6:00 amOslo Sandefjord
25h 17m
2 stops
SEA10:17 pmSeattle/Tacoma Intl
$577
Find similar
Scandinavian Airlines
Feb 23
SEA2:00 pmSeattle/Tacoma Intl
39h 05m
2 stops
TRF2:05 pmOslo Sandefjord
Feb 27
TRF2:35 pmOslo Sandefjord
40h 17m
2 stops
SEA9:52 pmSeattle/Tacoma Intl
$590
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 4, 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

Mon 3/2

6:05 am-2:05 pm

2 stops23h 00m

Oslo Sandefjord

Thu 3/12

2:35 pm-10:20 pm

2 stops39h 45m

$520

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 5/3

10:55 am-12:25 am

2 stops28h 30m

Oslo Sandefjord

Thu 6/4

6:00 am-10:17 pm

2 stops25h 17m

$577

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Mon 2/23

2:00 pm-2:05 pm

2 stops39h 05m

Oslo Sandefjord

Fri 2/27

2:35 pm-9:52 pm

2 stops40h 17m

$590

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 5/3

10:55 am-2:30 pm

2 stops18h 35m

Oslo Sandefjord

Sat 6/6

6:00 am-1:45 pm

1 stop16h 45m

$597

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Mon 5/4

10:55 am-2:30 pm

2 stops18h 35m

Oslo Sandefjord

Thu 6/4

6:00 am-10:17 pm

2 stops25h 17m

$617

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Mon 6/1

2:30 pm-12:25 am

2 stops24h 55m

Oslo Sandefjord

Mon 6/15

3:05 pm-1:45 pm

1 stop31h 40m

$623

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Wed 5/6

7:20 am-2:30 pm

2 stops22h 10m

Oslo Sandefjord

Wed 5/13

6:00 am-10:17 pm

2 stops25h 17m

$631

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 5/31

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Tue 6/9

6:00 am-1:45 pm

1 stop16h 45m

$633

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Mon 5/4

7:20 am-2:30 pm

2 stops22h 10m

Oslo Sandefjord

Fri 6/5

6:00 am-1:45 pm

1 stop16h 45m

$637

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Mon 2/23

2:00 pm-2:05 pm

2 stops39h 05m

Oslo Sandefjord

Fri 2/27

2:35 pm-9:52 pm

2 stops40h 17m

$660

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

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.
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 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.

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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