S$1,008 Cheap Flights from Oslo to Seattle

View S$1,008 flight on Wed, 17 Dec, 2025Opens in a new window

Popular airlines from Gardermoen Airport (OSL) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Oslo to Seattle (OSL-SEA)

Prices were available within the past 7 days and start at S$1,008 for one-way flights and S$681 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, 17 Dec - Mon, 22 Dec
OSL
Oslo
SEA
Seattle
S$681 Return, found 6 days ago
S$681
Return
found 6 days ago
Select United flight, departing Wed, 17 Dec from Oslo to Seattle, returning Mon, 22 Dec, priced at S$681 found 6 days ago
Delta
Fri, 3 Oct - Fri, 10 Oct
OSL
Oslo
SEA
Seattle
S$724 Return, found 6 days ago
S$724
Return
found 6 days ago
Select Delta flight, departing Fri, 3 Oct from Oslo to Seattle, returning Fri, 10 Oct, priced at S$724 found 6 days ago
United
Wed, 17 Dec - Mon, 22 Dec
OSL
Oslo
SEA
Seattle
S$725 Return, found 6 days ago
S$725
Return
found 6 days ago
Select United flight, departing Wed, 17 Dec from Oslo to Seattle, returning Mon, 22 Dec, priced at S$725 found 6 days ago
Delta
Fri, 3 Oct - Fri, 10 Oct
OSL
Oslo
SEA
Seattle
S$732 Return, found 6 days ago
S$732
Return
found 6 days ago
Select Delta flight, departing Fri, 3 Oct from Oslo to Seattle, returning Fri, 10 Oct, priced at S$732 found 6 days ago
United
Wed, 17 Dec - Mon, 22 Dec
OSL
Oslo
SEA
Seattle
S$756 Return, found 6 days ago
S$756
Return
found 6 days ago
Select United flight, departing Wed, 17 Dec from Oslo to Seattle, returning Mon, 22 Dec, priced at S$756 found 6 days ago
Air France
Fri, 3 Oct - Fri, 10 Oct
OSL
Oslo
SEA
Seattle
S$760 Return, found 6 days ago
S$760
Return
found 6 days ago
Select Air France flight, departing Fri, 3 Oct from Oslo to Seattle, returning Fri, 10 Oct, priced at S$760 found 6 days ago
United
Wed, 17 Dec - Mon, 22 Dec
OSL
Oslo
SEA
Seattle
S$764 Return, found 6 days ago
S$764
Return
found 6 days ago
Select United flight, departing Wed, 17 Dec from Oslo to Seattle, returning Mon, 22 Dec, priced at S$764 found 6 days ago
Air France
Fri, 3 Oct - Fri, 10 Oct
OSL
Oslo
SEA
Seattle
S$768 Return, found 6 days ago
S$768
Return
found 6 days ago
Select Air France flight, departing Fri, 3 Oct from Oslo to Seattle, returning Fri, 10 Oct, priced at S$768 found 6 days ago
Lufthansa
Fri, 3 Oct - Fri, 10 Oct
OSL
Oslo
SEA
Seattle
S$832 Return, found 6 days ago
S$832
Return
found 6 days ago
Select Lufthansa flight, departing Fri, 3 Oct from Oslo to Seattle, returning Fri, 10 Oct, priced at S$832 found 6 days ago
Air Canada
Fri, 3 Oct - Fri, 10 Oct
OSL
Oslo
SEA
Seattle
S$873 Return, found 6 days ago
S$873
Return
found 6 days ago
Select Air Canada flight, departing Fri, 3 Oct from Oslo to Seattle, returning Fri, 10 Oct, priced at S$873 found 6 days ago

Find the cheapest month to fly from Oslo (OSL) to Seattle (SEA)

May is typically the cheapest month to fly

From S$494 - S$1,026 per traveller.

Graph displaying average flight prices per month

Oslo to Seattle route information
Origin airport
Gardermoen
Destination airport
Seattle - Tacoma Intl.
Return price
S$681
Distance
7285 km

Flights from Oslo to Seattle

There are several airlines that operate frequent flights from Oslo (OSL) to Seattle (SEA) including

The earliest flight leaves Gardermoen Airport at 06:00 and arrives at Seattle Tacoma Intl. Airport at 10:57. The last flight of the day departs Oslo at 16:05 and arrives at Seattle at 21:25.

The flight distance from Oslo to Seattle is about 8937 km, the shortest flight is 11 hours 35 minutes with United Airlines.

Expedia lets you search across the largest number of airlines and Seattle flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Oslo Seattle flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Oslo to Seattle trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Seattle flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Oslo to Seattle with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Frequently asked questions

How much is a flight from Gardermoen Airport (OSL) to SEA?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip journey between Gardermoen Airport (OSL) and Sea-Tac Airport was S$681. Great fares don't last long, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from OSL to SEA?
This varies between airlines, as each one has its own set of terms and conditions. Head to the Customer Service Portal, where there are simple instructions on how to cancel online.
How do I find cheap flights from Gardermoen Airport (OSL) to SEA that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Gardermoen Airport (OSL) to SEA flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Oslo Gardermoen Airport to Sea-Tac Airport?
You'll have 7,300 kilometres to cover on the long-haul Ullensaker to SeaTac route. Wear layers of comfy clothes and consider taking earplugs and a sleep mask.
Which airlines fly direct from Gardermoen Airport (OSL) to Seattle - Tacoma Intl. Airport (SEA)?
You won't find any airlines flying directly between OSL and Sea-Tac Airport, so be prepared to make at least one stop on your journey. A layover can be a good way to break up a trip!
Are Gardermoen Airport (OSL) to SEA flight tickets cheaper when they're purchased at the last minute?
It is possible to find an amazing last-minute deal from Oslo Gardermoen Airport to Sea-Tac Airport, but it's also possible to miss out altogether! As many airlines release prices up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to book when you see a bargain. Expedia compares carrier prices and updates flight deals often, so you can be certain you're always getting the latest offers.

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