￥38,180 Cheap Flights from Seattle (SEA) to Oslo (OSL)

View ￥38,180 flight on Mon, Sep 7, 2026Opens in a new window

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

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Cheap Flights from Seattle to Oslo (SEA-OSL)

Prices were available within the past 7 days and start at ￥38,180 for one-way flights and ￥122,080 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Mon, Sep 7 - Thu, Sep 24
SEA
Seattle
OSL
Oslo
￥122,080 Roundtrip, found 6 days ago
￥122,080
Roundtrip
found 6 days ago
Select Scandinavian Airlines flight, departing Mon, Sep 7 from Seattle to Oslo, returning Thu, Sep 24, priced at ￥122,080 found 6 days ago

Frequently asked questions

How much is a flight from Sea-Tac Airport to OSL?
Start packing your bags, because round-trip journeys between SEA and OSL start from ￥122,080. That's based on fares advertised within the last 7 days on Expedia for flights departing within the next year. Prices can rise quickly, so book now to score the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to OSL?
Each airline has its own set of terms and conditions. If you decide to cancel your getaway, visit our Customer Service Portal.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to Oslo Gardermoen Airport 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 Seattle - Tacoma Intl. Airport (SEA) to Oslo Gardermoen Airport flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from Sea-Tac Airport to Oslo Gardermoen Airport?
The flight time from Sea-Tac Airport to Oslo Gardermoen Airport is around 13 hours and 54 minutes. It's is no quick joyride, so remember to fill your hand luggage with plenty to keep you busy.
How far is the flight from Sea-Tac Airport to OSL?
The distance is around 7,300 kilometers. Neck pillow? Check. Warm clothes? Double check. You'll need to pack all the travel comforts for this long-haul SeaTac to Ullensaker flight.
Which airlines fly direct from Sea-Tac Airport to Oslo Gardermoen Airport?
You won't find any airlines operating directly between Sea-Tac Airport and Oslo Gardermoen Airport, so be prepared to make at least one stop on your journey. A layover, whether short or long, can be a good way to break up a trip!
Are SEA to OSL flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can occasionally score a bargain, with some of the cheapest fares from Sea-Tac Airport to Gardermoen Airport (OSL) popping up a few weeks before the departure date. If you'd rather plan ahead, Expedia compares and updates all the best flight deals continually — as early as a year in advance in some cases. It does depend on the carrier though, as not every airline releases prices so far in advance.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Gardermoen
Roundtrip price
￥122,080
Distance
7285 km
*Available to Expedia members.