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Cheap flights from Washington to Oslo from $312

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 9/22. 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

Scandinavian Airlines Logo
1:00 pm - 2:05 pmPDX-TRF
40h 05m2 stops
Scandinavian Airlines Logo
2:35 pm - 10:20 pmTRF-PDX
40h 45m2 stops
$660Scandinavian Airlines
Find Deal
Wed, Nov 12 - Sun, Nov 16
Scandinavian Airlines Logo
1:00 pm - 2:05 pmPDX-TRF
40h 05m2 stops
Scandinavian Airlines Logo
2:35 pm - 10:20 pmTRF-PDX
40h 45m2 stops
$661Scandinavian Airlines
Find Deal
Wed, Nov 12 - Sun, Nov 16
Scandinavian Airlines Logo
7:18 am - 2:20 pmSEA-TRF
22h 02m2 stops
Scandinavian Airlines Logo
2:55 pm - 1:50 pmTRF-SEA
31h 55m1 stop
$664Scandinavian Airlines
Find Deal
Tue, Aug 19 - Thu, Aug 28
Scandinavian Airlines Logo
4:20 pm - 2:20 pmSEA-TRF
13h 00m1 stop
Scandinavian Airlines Logo
2:55 pm - 2:00 pmTRF-SEA
32h 05m1 stop
$681Scandinavian Airlines
Find Deal
Sun, Sep 21 - Tue, Oct 7
Logo
2:25 pm - 2:20 pmSEA-TRF
38h 55m2 stops
Logo
9:00 am - 2:00 pmTRF-SEA
38h 00m2 stops
$770
Find Deal
Wed, Sep 24 - Sat, Oct 4
Logo
2:20 pm - 11:50 amSEA-TRF
36h 30m2 stops
Logo
12:10 pm - 1:10 pmTRF-SEA
33h 00m2 stops
$861
Find Deal
Wed, Oct 22 - Wed, Oct 29
Air France Logo
2:00 pm - 2:05 pmSEA-TRF
39h 05m2 stops
Air France Logo
2:35 pm - 11:25 amTRF-SEA
53h 50m2 stops
$963Air France
Find Deal
Wed, Dec 3 - Sun, Dec 7
Air France Logo
2:00 pm - 2:05 pmSEA-TRF
39h 05m2 stops
Air France Logo
2:35 pm - 11:25 amTRF-SEA
53h 50m2 stops
$988Air France
Find Deal
Wed, Dec 3 - Sun, Dec 7
Lufthansa Logo
2:20 pm - 3:05 pmSEA-TRF
15h 45m2 stops
Lufthansa Logo
9:00 am - 4:59 pmTRF-SEA
16h 59m2 stops
$1,501Lufthansa
Find Deal
Wed, Oct 1 - Wed, Oct 15
Lufthansa Logo
2:20 pm - 3:05 pmSEA-TRF
15h 45m2 stops
Lufthansa Logo
3:30 pm - 11:55 amTRF-SEA
29h 25m2 stops
$1,613Lufthansa
Find Deal
Tue, Aug 26 - Sat, Aug 30

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
Nov 12
PDX1:00 pmPortland
40h 05m
2 stops
TRF2:05 pmOslo Sandefjord
Nov 16
TRF2:35 pmOslo Sandefjord
40h 45m
2 stops
PDX10:20 pmPortland
$660
Find similar
Scandinavian Airlines
Nov 12
PDX1:00 pmPortland
40h 05m
2 stops
TRF2:05 pmOslo Sandefjord
Nov 16
TRF2:35 pmOslo Sandefjord
40h 45m
2 stops
PDX10:20 pmPortland
$661
Find similar
Scandinavian Airlines
Aug 19
SEA7:18 amSeattle/Tacoma Intl
22h 02m
2 stops
TRF2:20 pmOslo Sandefjord
Aug 28
TRF2:55 pmOslo Sandefjord
31h 55m
1 stop
SEA1:50 pmSeattle/Tacoma Intl
$664
Find similar

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
Oct 1
SEA2:20 pmSeattle/Tacoma Intl
15h 45m
2 stops
TRF3:05 pmOslo Sandefjord
Oct 15
TRF9:00 amOslo Sandefjord
16h 59m
2 stops
SEA4:59 pmSeattle/Tacoma Intl
$1,501
Find similar
Lufthansa
Aug 26
SEA2:20 pmSeattle/Tacoma Intl
15h 45m
2 stops
TRF3:05 pmOslo Sandefjord
Aug 30
TRF3:30 pmOslo Sandefjord
29h 25m
2 stops
SEA11:55 amSeattle/Tacoma Intl
$1,613
Find similar
Lufthansa
Oct 1
SEA2:20 pmSeattle/Tacoma Intl
15h 45m
2 stops
TRF3:05 pmOslo Sandefjord
Oct 15
TRF9:00 amOslo Sandefjord
16h 59m
2 stops
SEA4:59 pmSeattle/Tacoma Intl
$1,986
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 August 7, 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

PortlandOslo

PDX - TRF

PDXTRF

Portland

Wed 11/12

1:00 pm-2:05 pm

2 stops40h 05m

Oslo Sandefjord

Sun 11/16

2:35 pm-10:20 pm

2 stops40h 45m

$660

PortlandOslo

PDX - TRF

PDXTRF

Portland

Wed 11/12

1:00 pm-2:05 pm

2 stops40h 05m

Oslo Sandefjord

Sun 11/16

2:35 pm-10:20 pm

2 stops40h 45m

$661

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 8/19

7:18 am-2:20 pm

2 stops22h 02m

Oslo Sandefjord

Thu 8/28

2:55 pm-1:50 pm

1 stop31h 55m

$664

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 9/21

4:20 pm-2:20 pm

1 stop13h 00m

Oslo Sandefjord

Tue 10/7

2:55 pm-2:00 pm

1 stop32h 05m

$681

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Wed 9/24

2:25 pm-2:20 pm

2 stops38h 55m

Oslo Sandefjord

Sat 10/4

9:00 am-2:00 pm

2 stops38h 00m

$770

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Wed 10/22

2:20 pm-11:50 am

2 stops36h 30m

Oslo Sandefjord

Wed 10/29

12:10 pm-1:10 pm

2 stops33h 00m

$861

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Wed 12/3

2:00 pm-2:05 pm

2 stops39h 05m

Oslo Sandefjord

Sun 12/7

2:35 pm-11:25 am

2 stops53h 50m

$963

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Wed 12/3

2:00 pm-2:05 pm

2 stops39h 05m

Oslo Sandefjord

Sun 12/7

2:35 pm-11:25 am

2 stops53h 50m

$988

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Wed 10/1

2:20 pm-3:05 pm

2 stops15h 45m

Oslo Sandefjord

Wed 10/15

9:00 am-4:59 pm

2 stops16h 59m

$1,501

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 8/26

2:20 pm-3:05 pm

2 stops15h 45m

Oslo Sandefjord

Sat 8/30

3:30 pm-11:55 am

2 stops29h 25m

$1,613

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

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

Best Price Found

$312

Fastest flight time

13h 00m

Direct flights

None
The best one-way flight to Oslo Sandefjord Airport from State of Washington in the past 72 hours is $312. The best round-trip flight deal from State of Washington to Oslo Sandefjord Airport found on momondo in the last 72 hours is $660.
The fastest flight from State of Washington to Oslo Sandefjord Airport takes 13h 00m
There are no direct flights from State of Washington to Oslo Sandefjord Airport. Popular non-direct routes for this connection are Portland Airport - Oslo Sandefjord Airport and Seattle/Tacoma Intl Airport - 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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