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Cheap flights from Washington to Oslo from $266

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 10/21. 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 pmSEA  Seattle/Tacoma Intl-TRF Oslo Sandefjord
13h 35m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
6:00 am - 1:45 pmTRF  Oslo Sandefjord-SEA Seattle/Tacoma Intl
16h 45m1 stop Kastrup Copenhagen
$526Scandinavian Airlines
Tue, Sep 15 - Tue, Sep 29
Scandinavian Airlines Logo
3:55 pm - 12:25 amSEA  Seattle/Tacoma Intl-TRF Oslo Sandefjord
23h 30m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
3:05 pm - 1:45 pmTRF  Oslo Sandefjord-SEA Seattle/Tacoma Intl
31h 40m1 stop Kastrup Copenhagen
$581Scandinavian Airlines
Sun, Oct 4 - Fri, Oct 9
Scandinavian Airlines Logo
3:55 pm - 2:30 pmSEA  Seattle/Tacoma Intl-TRF Oslo Sandefjord
13h 35m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
6:00 am - 11:04 pmTRF  Oslo Sandefjord-SEA Seattle/Tacoma Intl
26h 04m2 stops Kastrup Copenhagen New York John F Kennedy Intl
$597Scandinavian Airlines
Sun, Oct 11 - Mon, Oct 19
Scandinavian Airlines Logo
3:55 pm - 2:30 pmSEA  Seattle/Tacoma Intl-TRF Oslo Sandefjord
13h 35m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
6:00 am - 11:52 pmTRF  Oslo Sandefjord-SEA Seattle/Tacoma Intl
26h 52m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson
$631Scandinavian Airlines
Sun, Oct 4 - Fri, Oct 9
Scandinavian Airlines Logo
3:55 pm - 2:30 pmSEA  Seattle/Tacoma Intl-TRF Oslo Sandefjord
13h 35m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
6:00 am - 1:45 pmTRF  Oslo Sandefjord-SEA Seattle/Tacoma Intl
16h 45m1 stop Kastrup Copenhagen
$644Scandinavian Airlines
Tue, Sep 15 - Tue, Sep 29
Scandinavian Airlines Logo
3:55 pm - 2:30 pmSEA  Seattle/Tacoma Intl-TRF Oslo Sandefjord
13h 35m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
6:00 am - 1:45 pmTRF  Oslo Sandefjord-SEA Seattle/Tacoma Intl
16h 45m1 stop Kastrup Copenhagen
$708Scandinavian Airlines
Sun, Sep 6 - Tue, Sep 29
Scandinavian Airlines Logo
3:55 pm - 2:30 pmSEA  Seattle/Tacoma Intl-TRF Oslo Sandefjord
13h 35m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
6:00 am - 1:45 pmTRF  Oslo Sandefjord-SEA Seattle/Tacoma Intl
16h 45m1 stop Kastrup Copenhagen
$735Scandinavian Airlines
Sun, Sep 6 - Fri, Sep 25
Scandinavian Airlines Logo
3:55 pm - 12:25 amSEA  Seattle/Tacoma Intl-TRF Oslo Sandefjord
23h 30m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
6:00 am - 11:20 pmTRF  Oslo Sandefjord-SEA Seattle/Tacoma Intl
26h 20m2 stops Kastrup Copenhagen New York John F Kennedy Intl
$738Scandinavian Airlines
Sun, Sep 13 - Wed, Sep 30
Scandinavian Airlines Logo
3:55 pm - 12:25 amSEA  Seattle/Tacoma Intl-TRF Oslo Sandefjord
23h 30m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
3:05 pm - 1:45 pmTRF  Oslo Sandefjord-SEA Seattle/Tacoma Intl
31h 40m1 stop Kastrup Copenhagen
$749Scandinavian Airlines
Sat, Oct 3 - Thu, Oct 8
Scandinavian Airlines Logo
12:30 pm - 2:05 pmSEA  Seattle/Tacoma Intl-TRF Oslo Sandefjord
40h 35m2 stops Los Angeles Los Angeles Kastrup Copenhagen
Scandinavian Airlines Logo
6:00 am - 11:00 pmTRF  Oslo Sandefjord-SEA Seattle/Tacoma Intl
26h 00m2 stops Kastrup Copenhagen New York John F Kennedy Intl
$750Scandinavian Airlines
Tue, Nov 10 - Thu, Nov 19

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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
$526
Scandinavian Airlines
Oct 4
SEA3:55 pmSeattle/Tacoma Intl
23h 30m
1 stop
TRF12:25 amOslo Sandefjord
Oct 9
TRF3:05 pmOslo Sandefjord
31h 40m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
$581
Scandinavian Airlines
Oct 11
SEA3:55 pmSeattle/Tacoma Intl
13h 35m
1 stop
TRF2:30 pmOslo Sandefjord
Oct 19
TRF6:00 amOslo Sandefjord
26h 04m
2 stops
SEA11:04 pmSeattle/Tacoma Intl
$597

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 9, 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 Seattle/Tacoma Intl - TRF Oslo Sandefjord

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

$526

SeattleOslo

SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord

SEATRF

Seattle/Tacoma Intl

Sun 10/4

3:55 pm-12:25 am

1 stop23h 30m

Oslo Sandefjord

Fri 10/9

3:05 pm-1:45 pm

1 stop31h 40m

$581

SeattleOslo

SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord

SEATRF

Seattle/Tacoma Intl

Sun 10/11

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Mon 10/19

6:00 am-11:04 pm

2 stops26h 04m

$597

SeattleOslo

SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord

SEATRF

Seattle/Tacoma Intl

Sun 10/4

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Fri 10/9

6:00 am-11:52 pm

2 stops26h 52m

$631

SeattleOslo

SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord

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

$644

SeattleOslo

SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord

SEATRF

Seattle/Tacoma Intl

Sun 9/6

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Tue 9/29

6:00 am-1:45 pm

1 stop16h 45m

$708

SeattleOslo

SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord

SEATRF

Seattle/Tacoma Intl

Sun 9/6

3:55 pm-2:30 pm

1 stop13h 35m

Oslo Sandefjord

Fri 9/25

6:00 am-1:45 pm

1 stop16h 45m

$735

SeattleOslo

SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord

SEATRF

Seattle/Tacoma Intl

Sun 9/13

3:55 pm-12:25 am

1 stop23h 30m

Oslo Sandefjord

Wed 9/30

6:00 am-11:20 pm

2 stops26h 20m

$738

SeattleOslo

SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord

SEATRF

Seattle/Tacoma Intl

Sat 10/3

3:55 pm-12:25 am

1 stop23h 30m

Oslo Sandefjord

Thu 10/8

3:05 pm-1:45 pm

1 stop31h 40m

$749

SeattleOslo

SEA Seattle/Tacoma Intl - TRF Oslo Sandefjord

SEATRF

Seattle/Tacoma Intl

Tue 11/10

12:30 pm-2:05 pm

2 stops40h 35m

Oslo Sandefjord

Thu 11/19

6:00 am-11:00 pm

2 stops26h 00m

$750

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?

KLM is the most popular carrier 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.
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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.

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Find better results for your trip to Oslo

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