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Cheap flights from Oslo Sandefjord Airport to Washington from $426

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Oslo Sandefjord Airport to Washington departing on 1/16. 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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Find the cheapest flights from Oslo Sandefjord Airport to Washington

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
9:40 am - 11:50 amTRF-SEA
35h 10m2 stops
KLM Logo
3:05 pm - 6:45 pmSEA-TRF
18h 40m2 stops
$651KLM
Find Deal
Thu, Jan 22 - Wed, Feb 4
Scandinavian Airlines Logo
1:50 pm - 8:50 pmTRF-SEA
40h 00m2 stops
Scandinavian Airlines Logo
7:10 am - 2:05 pmSEA-TRF
21h 55m2 stops
$1,203Scandinavian Airlines
Find Deal
Sat, Dec 20 - Sat, Jan 3
Scandinavian Airlines Logo
2:35 pm - 7:00 pmTRF-SEA
37h 25m2 stops
Scandinavian Airlines Logo
7:10 am - 2:05 pmSEA-TRF
21h 55m2 stops
$1,326Scandinavian Airlines
Find Deal
Wed, Dec 17 - Sat, Jan 3
Multiple Airlines Logo
4:20 pm - 6:20 pmTRF-SEA
35h 00m2 stops
Multiple Airlines Logo
5:50 am - 8:55 pmSEA-TRF
30h 05m3 stops
$1,874Multiple Airlines
Find Deal
Sat, Dec 20 - Sat, Dec 27
KLM Logo
2:35 pm - 11:40 amTRF-SEA
30h 05m2 stops
KLM Logo
3:05 pm - 6:45 pmSEA-TRF
18h 40m2 stops
$2,110KLM
Find Deal
Sun, Feb 15 - Thu, Feb 19
KLM Logo
2:35 pm - 11:40 amTRF-SEA
30h 05m2 stops
KLM Logo
3:05 pm - 6:45 pmSEA-TRF
18h 40m2 stops
$2,114KLM
Find Deal
Sun, Feb 15 - Thu, Feb 19

KLM flights from Oslo Sandefjord Airport to State of Washington

Our best KLM deals on Oslo Sandefjord Airport to State of Washington flight tickets
KLM
Jan 22
TRF9:40 amOslo Sandefjord
35h 10m
2 stops
SEA11:50 amSeattle/Tacoma Intl
Feb 4
SEA3:05 pmSeattle/Tacoma Intl
18h 40m
2 stops
TRF6:45 pmOslo Sandefjord
$651
Find similar
KLM
Feb 15
TRF2:35 pmOslo Sandefjord
30h 05m
2 stops
SEA11:40 amSeattle/Tacoma Intl
Feb 19
SEA3:05 pmSeattle/Tacoma Intl
18h 40m
2 stops
TRF6:45 pmOslo Sandefjord
$2,110
Find similar
KLM
Feb 15
TRF2:35 pmOslo Sandefjord
30h 05m
2 stops
SEA11:40 amSeattle/Tacoma Intl
Feb 19
SEA3:05 pmSeattle/Tacoma Intl
18h 40m
2 stops
TRF6:45 pmOslo Sandefjord
$2,114
Find similar

Scandinavian Airlines flights from Oslo Sandefjord Airport to State of Washington

Our best Scandinavian Airlines deals on Oslo Sandefjord Airport to State of Washington flight tickets
Scandinavian Airlines
Dec 20
TRF1:50 pmOslo Sandefjord
40h 00m
2 stops
SEA8:50 pmSeattle/Tacoma Intl
Jan 3
SEA7:10 amSeattle/Tacoma Intl
21h 55m
2 stops
TRF2:05 pmOslo Sandefjord
$1,203
Find similar
Scandinavian Airlines
Dec 17
TRF2:35 pmOslo Sandefjord
37h 25m
2 stops
SEA7:00 pmSeattle/Tacoma Intl
Jan 3
SEA7:10 amSeattle/Tacoma Intl
21h 55m
2 stops
TRF2:05 pmOslo Sandefjord
$1,326
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Oslo Sandefjord Airport to State of Washington 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 30, 2025.
Use the filters below to find and compare flights from Oslo Sandefjord Airport to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Thu 1/22

9:40 am-11:50 am

2 stops35h 10m

Seattle/Tacoma Intl

Wed 2/4

3:05 pm-6:45 pm

2 stops18h 40m

$651

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Sat 12/20

1:50 pm-8:50 pm

2 stops40h 00m

Seattle/Tacoma Intl

Sat 1/3

7:10 am-2:05 pm

2 stops21h 55m

$1,203

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Wed 12/17

2:35 pm-7:00 pm

2 stops37h 25m

Seattle/Tacoma Intl

Sat 1/3

7:10 am-2:05 pm

2 stops21h 55m

$1,326

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Sat 12/20

4:20 pm-6:20 pm

2 stops35h 00m

Seattle/Tacoma Intl

Sat 12/27

5:50 am-8:55 pm

3 stops30h 05m

$1,874

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Sun 2/15

2:35 pm-11:40 am

2 stops30h 05m

Seattle/Tacoma Intl

Thu 2/19

3:05 pm-6:45 pm

2 stops18h 40m

$2,110

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Sun 2/15

2:35 pm-11:40 am

2 stops30h 05m

Seattle/Tacoma Intl

Thu 2/19

3:05 pm-6:45 pm

2 stops18h 40m

$2,114

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Fri 1/16

4:55 pm-10:33 am

2 stops50h 38m

$426

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Sat 1/17

10:00 am-10:34 am

3 stops33h 34m

$444

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Fri 1/16

4:55 pm-10:34 am

3 stops50h 39m

$446

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Thu 1/15

9:05 pm-10:33 am

3 stops46h 28m

$453

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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Cheap Oslo Sandefjord Airport to State of Washington flight deals and tips

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

Fastest flight time

25h 22m

Direct flights

None
The fastest flight from Oslo Sandefjord Airport to State of Washington takes 25h 22m
There are no direct flights from Oslo Sandefjord Airport to State of Washington. There are no popular flight routes from Oslo Sandefjord Airport to State of Washington.
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  • When did momondo last update prices for flights from Oslo Sandefjord Airport to Washington?

    Prices for flights from Oslo Sandefjord Airport to Washington refresh daily.

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

    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 Oslo Sandefjord Airport to Washington.

  • What documentation or ID do you need to fly to Washington?

    The travel and health documents you'll need for your trip to Washington may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Oslo Sandefjord Airport to State of Washington?

    Price Alerts will notify you by email when the price for flights to State of Washington from Oslo Sandefjord Airport decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Oslo Sandefjord Airport to State of Washington with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

Why should I use momondo to find a flight deal from Oslo to Washington?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Oslo to Washington for you.

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

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

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

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 Washington from Oslo.

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

If you are simply researching potential flights to Washington, momondo offers a useful price alert feature which will track prices for flights to Washington from Oslo and alert you when they change.

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