Cheap flights from Oslo Sandefjord Airport to Seattle from $455

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 Seattle departing on 11/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Oslo Sandefjord Airport to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:15 am - 6:20 pmTRF-SEA
16h 05m2 stops
Multiple Airlines Logo
2:35 pm - 8:25 pmSEA-TRF
20h 50m2 stops
$1,311Multiple Airlines
Find Deal
Wed, Nov 5 - Fri, Nov 7
Multiple Airlines Logo
6:00 am - 5:00 pmTRF-SEA
20h 00m3 stops
Multiple Airlines Logo
8:05 pm - 8:25 pmSEA-TRF
15h 20m2 stops
$1,521Multiple Airlines
Find Deal
Wed, Nov 5 - Fri, Nov 7

momondo Fare Finder

 
Customize your flight search to find flights from Oslo Sandefjord Airport to Seattle 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 October 16, 2025.
Use the filters below to find and compare flights from Oslo Sandefjord Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Wed 11/5

11:15 am-6:20 pm

2 stops16h 05m

Seattle/Tacoma Intl

Fri 11/7

2:35 pm-8:25 pm

2 stops20h 50m

$1,311

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Wed 11/5

6:00 am-5:00 pm

3 stops20h 00m

Seattle/Tacoma Intl

Fri 11/7

8:05 pm-8:25 pm

2 stops15h 20m

$1,521

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Sun 11/23

1:10 pm-11:43 pm

3 stops43h 33m

$455

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Tue 12/2

12:55 pm-6:20 pm

3 stops38h 25m

$476

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Sun 12/7

9:20 pm-6:20 pm

3 stops30h 00m

$544

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Wed 12/3

2:05 pm-5:00 pm

2 stops35h 55m

$551

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Sun 11/23

9:20 pm-3:40 pm

2 stops27h 20m

$595

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Sun 11/30

4:05 pm-3:40 pm

3 stops32h 35m

$604

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Tue 11/25

8:00 pm-4:46 pm

3 stops53h 46m

$637

OsloSeattle

TRF - SEA

TRFSEA

Oslo Sandefjord

Sun 12/28

12:40 pm-8:45 am

3 stops53h 05m

$716

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Oslo Sandefjord Airport to Seattle

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 day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Oslo Sandefjord Airport is on a Saturday. momondo users have found tickets for Saturday departures for as low as $536. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Oslo Sandefjord Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $769.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Oslo Sandefjord Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $536 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $662. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Oslo Sandefjord Airport to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Oslo Sandefjord Airport to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Oslo Sandefjord Airport to Seattle (TRF to SEA) flight deals and tips

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

Direct flights

None
There are no direct flights from Oslo Sandefjord Airport to Seattle. There are no popular flight routes from Oslo Sandefjord Airport to Seattle.
  • How far is Oslo Sandefjord to Seattle/Tacoma Intl by plane?

    The distance between Oslo Sandefjord and Seattle/Tacoma Intl is about 4583.4 mi. By plane, this route typically takes 16h 05m.

  • When did momondo last update prices for flights from Oslo Sandefjord Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Oslo Sandefjord Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Oslo Sandefjord Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Oslo Sandefjord Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Tukwila
Lakewood
Kirkland
Fife
Centralia
Shoreline
Cle Elum
Redmond
Westport

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Oslo to Seattle. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to Seattle from Oslo on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Oslo to Seattle.

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

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

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1 adult
Sat 11/15
Sat 11/22

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