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Cheap flights from Washington to Oslo from $367

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 2/28. 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
7:10 am - 2:05 pmSEA-TRF
21h 55m2 stops
Scandinavian Airlines Logo
2:35 pm - 10:22 pmTRF-SEA
40h 47m2 stops
$589Scandinavian Airlines
Find Deal
Sun, Feb 15 - Thu, Feb 19
Scandinavian Airlines Logo
9:50 am - 2:30 pmSEA-TRF
19h 40m2 stops
Scandinavian Airlines Logo
6:00 am - 1:45 pmTRF-SEA
16h 45m1 stop
$636Scandinavian Airlines
Find Deal
Sun, May 10 - Fri, May 29
Scandinavian Airlines Logo
11:10 am - 2:30 pmSEA-TRF
18h 20m2 stops
Scandinavian Airlines Logo
6:00 am - 1:45 pmTRF-SEA
16h 45m1 stop
$675Scandinavian Airlines
Find Deal
Mon, May 4 - Fri, May 29
Scandinavian Airlines Logo
7:20 am - 2:30 pmSEA-TRF
22h 10m2 stops
Scandinavian Airlines Logo
6:00 am - 10:17 pmTRF-SEA
25h 17m2 stops
$700Scandinavian Airlines
Find Deal
Sat, Apr 25 - Wed, May 20
Multiple Airlines Logo
7:00 pm - 6:00 pmSEA-TRF
14h 00m2 stops
Multiple Airlines Logo
12:10 pm - 6:00 pmTRF-SEA
14h 50m2 stops
$749Multiple Airlines
Find Deal
Sat, Apr 25 - Wed, May 20
Scandinavian Airlines Logo
7:10 am - 2:05 pmSEA-TRF
21h 55m2 stops
Scandinavian Airlines Logo
2:35 pm - 6:58 pmTRF-SEA
37h 23m2 stops
$754Scandinavian Airlines
Find Deal
Sat, Feb 14 - Thu, Feb 19
Multiple Airlines Logo
7:00 pm - 6:35 pmSEA-TRF
14h 35m2 stops
Multiple Airlines Logo
12:10 pm - 6:00 pmTRF-SEA
14h 50m2 stops
$774Multiple Airlines
Find Deal
Fri, May 8 - Fri, May 22
Multiple Airlines Logo
7:00 pm - 9:10 pmSEA-TRF
17h 10m2 stops
Multiple Airlines Logo
12:10 pm - 8:45 pmTRF-SEA
17h 35m2 stops
$790Multiple Airlines
Find Deal
Thu, Apr 23 - Mon, Apr 27
Multiple Airlines Logo
7:00 pm - 9:10 pmSEA-TRF
17h 10m2 stops
Multiple Airlines Logo
12:10 pm - 5:50 pmTRF-SEA
14h 40m2 stops
$791Multiple Airlines
Find Deal
Thu, Apr 23 - Sun, Apr 26
Multiple Airlines Logo
7:00 pm - 6:35 pmSEA-TRF
14h 35m2 stops
Multiple Airlines Logo
12:10 pm - 6:00 pmTRF-SEA
14h 50m2 stops
$824Multiple Airlines
Find Deal
Fri, May 15 - Sun, May 24

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
Feb 15
SEA7:10 amSeattle/Tacoma Intl
21h 55m
2 stops
TRF2:05 pmOslo Sandefjord
Feb 19
TRF2:35 pmOslo Sandefjord
40h 47m
2 stops
SEA10:22 pmSeattle/Tacoma Intl
$589
Find similar
Scandinavian Airlines
May 10
SEA9:50 amSeattle/Tacoma Intl
19h 40m
2 stops
TRF2:30 pmOslo Sandefjord
May 29
TRF6:00 amOslo Sandefjord
16h 45m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
$636
Find similar
Scandinavian Airlines
May 4
SEA11:10 amSeattle/Tacoma Intl
18h 20m
2 stops
TRF2:30 pmOslo Sandefjord
May 29
TRF6:00 amOslo Sandefjord
16h 45m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
$675
Find similar

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 November 17, 2025.
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 2/15

7:10 am-2:05 pm

2 stops21h 55m

Oslo Sandefjord

Thu 2/19

2:35 pm-10:22 pm

2 stops40h 47m

$589

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 5/10

9:50 am-2:30 pm

2 stops19h 40m

Oslo Sandefjord

Fri 5/29

6:00 am-1:45 pm

1 stop16h 45m

$636

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Mon 5/4

11:10 am-2:30 pm

2 stops18h 20m

Oslo Sandefjord

Fri 5/29

6:00 am-1:45 pm

1 stop16h 45m

$675

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sat 4/25

7:20 am-2:30 pm

2 stops22h 10m

Oslo Sandefjord

Wed 5/20

6:00 am-10:17 pm

2 stops25h 17m

$700

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-6:00 pm

2 stops14h 50m

$749

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sat 2/14

7:10 am-2:05 pm

2 stops21h 55m

Oslo Sandefjord

Thu 2/19

2:35 pm-6:58 pm

2 stops37h 23m

$754

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-6:00 pm

2 stops14h 50m

$774

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Thu 4/23

7:00 pm-9:10 pm

2 stops17h 10m

Oslo Sandefjord

Mon 4/27

12:10 pm-8:45 pm

2 stops17h 35m

$790

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Thu 4/23

7:00 pm-9:10 pm

2 stops17h 10m

Oslo Sandefjord

Sun 4/26

12:10 pm-5:50 pm

2 stops14h 40m

$791

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Fri 5/15

7:00 pm-6:35 pm

2 stops14h 35m

Oslo Sandefjord

Sun 5/24

12:10 pm-6:00 pm

2 stops14h 50m

$824

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

What is the cheapest airline that flies from Washington to Oslo Sandefjord?

Lufthansa and Scandinavian Airlines are the most popular carriers operating from Washington to Oslo Sandefjord

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

Direct flights

None
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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