Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Washington to Oslo from $263

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 8/23. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Washington to Oslo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
3:55 pm - 2:30 pm
SEA
-
TRF
13h 35m
1 stop
Scandinavian Airlines Logo
6:00 am - 1:45 pm
TRF
-
SEA
16h 45m
1 stop
$645Scandinavian Airlines
Tue, Sep 15 - Tue, Sep 29
Scandinavian Airlines Logo
3:55 pm - 8:25 pm
SEA
-
TRF
19h 30m
1 stop
Scandinavian Airlines Logo
6:00 am - 1:45 pm
TRF
-
SEA
16h 45m
1 stop
$656Scandinavian Airlines
Tue, Jul 28 - Tue, Aug 11
Scandinavian Airlines Logo
3:55 pm - 8:25 pm
SEA
-
TRF
19h 30m
1 stop
Scandinavian Airlines Logo
6:00 am - 1:45 pm
TRF
-
SEA
16h 45m
1 stop
$664Scandinavian Airlines
Sun, Aug 2 - Tue, Aug 11
Scandinavian Airlines Logo
3:55 pm - 2:30 pm
SEA
-
TRF
13h 35m
1 stop
Scandinavian Airlines Logo
6:00 am - 1:45 pm
TRF
-
SEA
16h 45m
1 stop
$682Scandinavian Airlines
Tue, Aug 11 - Fri, Aug 21
Scandinavian Airlines Logo
3:55 pm - 8:25 pm
SEA
-
TRF
19h 30m
1 stop
Scandinavian Airlines Logo
8:55 pm - 1:45 pm
TRF
-
SEA
25h 50m
1 stop
$686Scandinavian Airlines
Tue, Jul 7 - Mon, Jul 20
Scandinavian Airlines Logo
3:55 pm - 12:25 am
SEA
-
TRF
23h 30m
1 stop
Scandinavian Airlines Logo
6:00 am - 1:45 pm
TRF
-
SEA
16h 45m
1 stop
$687Scandinavian Airlines
Tue, Aug 11 - Fri, Aug 21
Scandinavian Airlines Logo
3:55 pm - 2:30 pm
SEA
-
TRF
13h 35m
1 stop
Scandinavian Airlines Logo
3:05 pm - 1:45 pm
TRF
-
SEA
31h 40m
1 stop
$696Scandinavian Airlines
Sun, Aug 16 - Thu, Aug 27
Scandinavian Airlines Logo
3:55 pm - 2:30 pm
SEA
-
TRF
13h 35m
1 stop
Scandinavian Airlines Logo
3:05 pm - 1:45 pm
TRF
-
SEA
31h 40m
1 stop
$697Scandinavian Airlines
Sun, Aug 16 - Thu, Aug 27
KLM Logo
1:05 pm - 6:05 pm
PDX
-
TRF
20h 00m
2 stops
KLM Logo
6:00 am - 9:13 pm
TRF
-
PDX
24h 13m
2 stops
$815KLM
Sat, Aug 1 - Fri, Aug 14
Multiple Airlines Logo
7:05 pm - 12:25 am
PDX
-
TRF
20h 20m
2 stops
Multiple Airlines Logo
9:05 am - 5:55 pm
TRF
-
PDX
17h 50m
2 stops
$971Multiple Airlines
Wed, Aug 19 - Sun, Aug 23

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
Sep 15
SEA3:55 pmSeattle/Tacoma Intl
13h 35m
1 stop
TRF2:30 pmOslo Sandefjord
Sep 29
TRF6:00 amOslo Sandefjord
16h 45m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
$645
Scandinavian Airlines
Jul 28
SEA3:55 pmSeattle/Tacoma Intl
19h 30m
1 stop
TRF8:25 pmOslo Sandefjord
Aug 11
TRF6:00 amOslo Sandefjord
16h 45m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
$656
Scandinavian Airlines
Aug 2
SEA3:55 pmSeattle/Tacoma Intl
19h 30m
1 stop
TRF8:25 pmOslo Sandefjord
Aug 11
TRF6:00 amOslo Sandefjord
16h 45m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
$664

KLM flights from State of Washington to Oslo Sandefjord Airport

Our best KLM deals on State of Washington to Oslo Sandefjord Airport flight tickets
KLM
Aug 1
PDX1:05 pmPortland
20h 00m
2 stops
TRF6:05 pmOslo Sandefjord
Aug 14
TRF6:00 amOslo Sandefjord
24h 13m
2 stops
PDX9:13 pmPortland
$815
KLM
Aug 2
PDX1:05 pmPortland
22h 20m
2 stops
TRF8:25 pmOslo Sandefjord
Aug 16
TRF3:05 pmOslo Sandefjord
38h 12m
2 stops
PDX8:17 pmPortland
$1,082
KLM
Aug 2
PDX1:05 pmPortland
17h 00m
2 stops
TRF3:05 pmOslo Sandefjord
Aug 17
TRF6:00 amOslo Sandefjord
23h 17m
2 stops
PDX8:17 pmPortland
$1,302

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 June 18, 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

Cheapest round-trip
Quickest round-trip

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 9/15

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Tue 9/29

6:00 am-1:45 pm

1 stop16h 45m

$645

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 7/28

3:55 pm-8:25 pm

1 stop19h 30m

Oslo Sandefjord

Tue 8/11

6:00 am-1:45 pm

1 stop16h 45m

$656

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 8/2

3:55 pm-8:25 pm

1 stop19h 30m

Oslo Sandefjord

Tue 8/11

6:00 am-1:45 pm

1 stop16h 45m

$664

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 8/11

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Fri 8/21

6:00 am-1:45 pm

1 stop16h 45m

$682

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 7/7

3:55 pm-8:25 pm

1 stop19h 30m

Oslo Sandefjord

Mon 7/20

8:55 pm-1:45 pm

1 stop25h 50m

$686

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Tue 8/11

3:55 pm-12:25 am

1 stop23h 30m

Oslo Sandefjord

Fri 8/21

6:00 am-1:45 pm

1 stop16h 45m

$687

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 8/16

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Thu 8/27

3:05 pm-1:45 pm

1 stop31h 40m

$696

SeattleOslo

SEA - TRF

SEATRF

Seattle/Tacoma Intl

Sun 8/16

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Thu 8/27

3:05 pm-1:45 pm

1 stop31h 40m

$697

PortlandOslo

PDX - TRF

PDXTRF

Portland

Sat 8/1

1:05 pm-6:05 pm

2 stops20h 00m

Oslo Sandefjord

Fri 8/14

6:00 am-9:13 pm

2 stops24h 13m

$815

PortlandOslo

PDX - TRF

PDXTRF

Portland

Wed 8/19

7:05 pm-12:25 am

2 stops20h 20m

Oslo Sandefjord

Sun 8/23

9:05 am-5:55 pm

2 stops17h 50m

$971

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

KLM 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

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.
Search flight deals

Frequently asked questions about flying from Washington to Oslo Sandefjord Airport

  • 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.

An easier way to manage your Oslo Sandefjord Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 7/18
Sat 7/25
By creating a price alert you accept our terms of use and privacy policy.

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 $426