How to get fromSeattle to Ko Samuiby plane or ferry

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There are 3 ways to get from Seattle to Ko Samui by plane or ferry

Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2Rio's travel planner.

Fly Seattle-Tacoma International Airport to Koh Samui Airport
best
1. Fly from Seattle-Tacoma International Airport (SEA) to Koh Samui Airport (USM)plane SEA - USM
24h 10m
฿19,097–26,297
Fly Seattle-Tacoma International Airport to Surat Thani, ferry
cheapest
1. Fly from Seattle-Tacoma International Airport (SEA) to Surat Thani (URT)plane SEA - URT
2. Take the ferry from Surat Thani Airport to Boonsiri Ferry Nathon Pier Koh Samuiferry
30h 57m
฿15,467–60,617
Fly Seattle Lake Union SPB to Koh Samui Airport
1. Fly from Seattle Lake Union SPB (LKE) to Koh Samui Airport (USM)plane LKE - USM
32h 6m
฿23,998–86,198

Seattle-Tacoma International Airport (SEA) to Koh Samui Airport (USM) flights

40Weekly Planes

24h 43mAverage Duration

฿19,933Cheapest Price

Questions & Answers

Map of how to get from Seattle to Ko Samui.

Launch map view

Distance: 12,474.4 km
Duration: 24h 10m

What companies run services between Seattle, WA, USA and Ko Samui, Thailand?

Singapore Airlines, Bangkok Airways, and six other airlines fly from Seattle-Tacoma International Airport (SEA) to Koh Samui Airport (USM) every 4 hours.

Airlines

Ferry operators

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Ko Samui(opens in a new window), Thailand(opens in a new window)

Ko Samui is an island off the east coast of Thailand. Geographically in the Chumphon Archipelago, it is part of Surat Thani Province, though as of 2012, Ko Samui was granted municipal status and thus is now locally self-governing. Ko Samui, with an area of 228.7 sqkm, is Thailand's second largest island after Phuket. In 2018, it was visited by 2.7 million tourists.

Places to stay in Ko Samui

Villa Ayundra(Opens in a new window)

9.8Exceptional

Villa Liu(Opens in a new window)

9.2Superb

Viva Vacation Resort(Opens in a new window)

9.1Superb

Sawai Home Resort(Opens in a new window)

7.9Good

Rome2Rio makes travelling from Seattle to Ko Samui easy.

Rome2Rio is a door-to-door travel information and booking engine, helping you get to and from any location in the world. Find all the transport options for your trip from Seattle to Ko Samui right here. Rome2Rio displays up to date schedules, route maps, journey times and estimated fares from relevant transport operators, ensuring you can make an informed decision about which option will suit you best. Rome2Rio also offers online bookings for selected operators, making reservations easy and straightforward.