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Cheap flights from Washington to Oslo from $280

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Oslo departing on 2/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
3:55 pm - 12:25 am
SEA
-
TRF
23h 30m
1 stop
Scandinavian Airlines Logo
8:55 pm - 1:45 pm
TRF
-
SEA
25h 50m
1 stop
$663Scandinavian Airlines
Sun, Jun 7 - Mon, Jun 29
Multiple Airlines Logo
7:10 am - 2:30 pm
GEG
-
TRF
22h 20m
3 stops
Multiple Airlines Logo
6:25 pm - 9:11 pm
TRF
-
GEG
35h 46m
3 stops
$755Multiple Airlines
Tue, Apr 14 - Tue, Apr 21
Multiple Airlines Logo
7:00 pm - 6:00 pm
SEA
-
TRF
14h 00m
2 stops
Multiple Airlines Logo
12:10 pm - 5:55 pm
TRF
-
SEA
14h 45m
2 stops
$776Multiple Airlines
Sat, Apr 25 - Wed, May 20
Multiple Airlines Logo
3:00 pm - 2:05 pm
SEA
-
TRF
39h 05m
2 stops
Multiple Airlines Logo
3:05 pm - 12:20 pm
TRF
-
SEA
54h 15m
2 stops
$782Multiple Airlines
Tue, Mar 17 - Sun, Mar 29
Scandinavian Airlines Logo
3:55 pm - 8:25 pm
SEA
-
TRF
19h 30m
1 stop
Scandinavian Airlines Logo
5:10 pm - 1:45 pm
TRF
-
SEA
29h 35m
1 stop
$793Scandinavian Airlines
Sun, Jul 5 - Sat, Jul 11
Multiple Airlines Logo
7:00 pm - 6:35 pm
SEA
-
TRF
14h 35m
2 stops
Multiple Airlines Logo
12:10 pm - 5:55 pm
TRF
-
SEA
14h 45m
2 stops
$828Multiple Airlines
Fri, May 15 - Mon, May 25
Multiple Airlines Logo
7:00 pm - 6:35 pm
SEA
-
TRF
14h 35m
2 stops
Multiple Airlines Logo
12:10 pm - 5:55 pm
TRF
-
SEA
14h 45m
2 stops
$829Multiple Airlines
Fri, May 15 - Mon, May 25
Scandinavian Airlines Logo
11:10 am - 2:30 pm
SEA
-
TRF
18h 20m
2 stops
Scandinavian Airlines Logo
6:00 am - 1:45 pm
TRF
-
SEA
16h 45m
1 stop
$831Scandinavian Airlines
Mon, Jun 15 - Tue, Sep 1
Multiple Airlines Logo
7:00 pm - 6:00 pm
SEA
-
TRF
14h 00m
2 stops
Multiple Airlines Logo
12:10 pm - 5:55 pm
TRF
-
SEA
14h 45m
2 stops
$833Multiple Airlines
Sat, May 9 - Sat, May 23
Scandinavian Airlines Logo
3:55 pm - 2:30 pm
SEA
-
TRF
13h 35m
1 stop
Scandinavian Airlines Logo
1:50 pm - 1:45 pm
TRF
-
SEA
32h 55m
1 stop
$836Scandinavian Airlines
Tue, Jun 16 - Thu, Jul 2

Scandinavian Airlines flights from State of Washington to Oslo Sandefjord Airport

Our best Scandinavian Airlines deals on State of Washington to Oslo Sandefjord Airport flight tickets
Scandinavian Airlines
Jun 7
SEA3:55 pmSeattle/Tacoma Intl
23h 30m
1 stop
TRF12:25 amOslo Sandefjord
Jun 29
TRF8:55 pmOslo Sandefjord
25h 50m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
$663
Scandinavian Airlines
Jul 5
SEA3:55 pmSeattle/Tacoma Intl
19h 30m
1 stop
TRF8:25 pmOslo Sandefjord
Jul 11
TRF5:10 pmOslo Sandefjord
29h 35m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
$793
Scandinavian Airlines
Jul 5
SEA3:55 pmSeattle/Tacoma Intl
19h 30m
1 stop
TRF8:25 pmOslo Sandefjord
Jul 13
TRF8:55 pmOslo Sandefjord
25h 50m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
$808

Lufthansa flights from State of Washington to Oslo Sandefjord Airport

Our best Lufthansa deals on State of Washington to Oslo Sandefjord Airport flight tickets
Lufthansa
Jun 17
SEA6:50 pmSeattle/Tacoma Intl
17h 20m
2 stops
TRF9:10 pmOslo Sandefjord
Jul 2
TRF9:00 amOslo Sandefjord
16h 59m
2 stops
SEA4:59 pmSeattle/Tacoma Intl
$1,385
Lufthansa
Jun 16
SEA2:10 pmSeattle/Tacoma Intl
15h 55m
2 stops
TRF3:05 pmOslo Sandefjord
Jul 2
TRF9:00 amOslo Sandefjord
16h 59m
2 stops
SEA4:59 pmSeattle/Tacoma Intl
$1,553

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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 January 12, 2026.
Use the filters below to find and compare flights from Washington to Oslo Sandefjord Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 6/7

3:55 pm-12:25 am

1 stop23h 30m

Oslo Sandefjord

Mon 6/29

8:55 pm-1:45 pm

1 stop25h 50m

$663

SpokaneOslo

GEG - TRF

GEGTRF

Spokane

Tue 4/14

7:10 am-2:30 pm

3 stops22h 20m

Oslo Sandefjord

Tue 4/21

6:25 pm-9:11 pm

3 stops35h 46m

$755

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

$776

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 3/17

3:00 pm-2:05 pm

2 stops39h 05m

Oslo Sandefjord

Sun 3/29

3:05 pm-12:20 pm

2 stops54h 15m

$782

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 7/5

3:55 pm-8:25 pm

1 stop19h 30m

Oslo Sandefjord

Sat 7/11

5:10 pm-1:45 pm

1 stop29h 35m

$793

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Fri 5/15

7:00 pm-6:35 pm

2 stops14h 35m

Oslo Sandefjord

Mon 5/25

12:10 pm-5:55 pm

2 stops14h 45m

$828

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Fri 5/15

7:00 pm-6:35 pm

2 stops14h 35m

Oslo Sandefjord

Mon 5/25

12:10 pm-5:55 pm

2 stops14h 45m

$829

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Mon 6/15

11:10 am-2:30 pm

2 stops18h 20m

Oslo Sandefjord

Tue 9/1

6:00 am-1:45 pm

1 stop16h 45m

$831

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sat 5/9

7:00 pm-6:00 pm

2 stops14h 00m

Oslo Sandefjord

Sat 5/23

12:10 pm-5:55 pm

2 stops14h 45m

$833

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 6/16

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Thu 7/2

1:50 pm-1:45 pm

1 stop32h 55m

$836

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 State of Washington 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

How long does it take to fly to Oslo Sandefjord Airport?

Flight times vary depending on what airport in State of Washington you fly out of and what airport in Oslo Sandefjord Airport you fly into. For example, flying from Seattle to Oslo Gardermoen Airport takes 12h on average. On the other hand, flying from Spokane to Oslo Gardermoen Airport takes 21h 05m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

Cheap State of Washington to Oslo Sandefjord Airport flight deals and tips

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

Fastest flight time

13h 35m

Direct flights

None
The fastest flight from State of Washington to Oslo Sandefjord Airport takes 13h 35m
There are no direct flights from State of Washington to Oslo Sandefjord Airport. There are no popular flight routes from State of Washington to Oslo Sandefjord Airport.
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  • When did momondo last update prices for flights from Washington to Oslo Sandefjord Airport?

    Prices for flights from Washington to Oslo Sandefjord Airport are updated daily.

  • How old do you have to be to fly from Washington to Oslo Sandefjord Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington 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 Washington 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 Washington.

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

momondo does allow users to show only those flights to Oslo from Washington which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Oslo from Washington.

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

If you are not ready to book a flight from Washington to Oslo now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Oslo and let you know when they change.

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Find better results for your trip to Oslo

Popular cities in Norway

Popular flights according to clicks in the last 7 days on momondo
Flights to Oslo Gardermoen Airportfrom $339