Flights from Seattle to Koh Samui (SEA to USM)

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Frequently asked questions

Are there direct flights from Seattle to Koh Samui? Currently, there are no direct flights from SEA to USM. You may need to connect through another airport.

Related guides for this route

Sibling pages from across Flightmaps — fares, visa rules, country aggregations, and per-airline routes for Seattle → Koh Samui.

Try a nearby airport to Seattle

Flights to Koh Samui (USM) from other airports within 350 km of Seattle. Often unlocks cheaper fares or better times.

PAE → USM 52 km from SEA Everett → Koh Samui USA · 9 destinations BLI → USM 151 km from SEA Bellingham → Koh Samui USA · 7 destinations YYJ → USM 157 km from SEA Victoria → Koh Samui Canada · 15 destinations YVR → USM 205 km from SEA Vancouver → Koh Samui Canada · 123 destinations PDX → USM 207 km from SEA Portland → Koh Samui USA · 90 destinations

Or try a nearby airport to Koh Samui

Flights from Seattle (SEA) to other airports within 350 km of Koh Samui.

SEA → KBV 201 km from USM Seattle → Krabi Thailand · 12 destinations SEA → HKT 251 km from USM Seattle → Phuket Thailand · 70 destinations SEA → HDY 293 km from USM Seattle → Hat Yai Thailand · 9 destinations

Other flights from Seattle (SEA)

Albuquerque (ABQ) Amsterdam (AMS) Anchorage (ANC) Arcata (ACV) Atlanta (ATL) Austin (AUS) Baltimore (BWI) Barcelona (BCN) All 139 destinations →

Other flights from Koh Samui (USM)

Bangkok (BKK) Bangkok (DMK) Chengdu (TFU) Chiang Mai (CNX) Hong Kong (HKG) Krabi (KBV) Phuket (HKT) Singapore (SIN) All 9 destinations →

Flights from Seattle to Koh Samui (SEA → USM)