Oslo (OSL) to Seattle / Tacoma (SEA) flight deal in economy from $639

Air CanadaACAir CanadaLufthansaLHLufthansaSwiss International Air LinesLXSwiss International Air LinesAustrian AirlinesOSAustrian AirlinesUnited AirlinesUAUnited Airlines
Round Trip•Economy
NorwayOSL

Oslo Airport, Gardermoen

Oslo, Norway
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
$739 USD
-14%$639 USD
Verified about 5 hours ago
Great Availability
67% of dates checked are available within 10% of the lowest price

Friday, December 25th, 2026

5 round-trip options

Returning
Wed, Dec 30, 2026•5 Day Trip
$1,569 USD
Google Flights
Returning
Thu, Dec 31, 2026•6 Day Trip
$1,570 USD
Google Flights
Returning
Fri, Jan 1, 2027•7 Day Trip
$1,629 USD
Google Flights
Returning
Sun, Jan 3, 2027•9 Day Trip
$1,570 USD
Google Flights
Returning
Mon, Jan 4, 2027•10 Day Trip
$1,560 USD
Google Flights