€772 Cheap Flights Seattle to Ko Samui (SEA-USM)

Featured airlines

Lufthansa
Aer Lingus
Stobart Air
British Airways
American Airlines
Air France
Virgin Atlantic
Iberia
easyJet
  • Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 15% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards

Cheap flights from Seattle to Ko Samui (SEA-USM)

Prices were available within the past 7 days and start at €772 for one-way flights and €1,919 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

EVA Airways
Qatar Airways
Qatar Airways
Qatar Airways
Qatar Airways
Qatar Airways
Qatar Airways
EVA Airways
Turkish Airlines
Turkish Airlines
Turkish Airlines
Qatar Airways
*Available to Expedia members.