How much should you expect to spend for a flight from Seattle to Ko Samui?

Flight prices from Seattle to Ko Samui change depending on demand and time of booking.

Pick a travel date to see today’s available fares.

Studies show that flying midweek — like on a Tuesday or Wednesday — can be cheaper than weekend flights. Still, airfares change frequently, so check updated prices on Jetcost.

Which airports serve Seattle and Ko Samui?

When planning a trip of about 12425 km, it's a good idea to check flights from surrounding airports too.

• Airports in Seattle: Seattle is connected to 2 airports - Boeing Field, Lake Union.
• Airports in Ko Samui: The only active airport in Ko Samui is Ko Samui - Koh Samui.

The closest airport isn’t always the cheapest — it’s worth checking the alternatives too. In some cities, smaller airports offer lower fares than the main ones.

Refine your flight search from Seattle to Ko Samui

With Jetcost, it’s easy to narrow down results to find flights that match your schedule and preferences. You can filter by airline, price, trip type, and more — including offers from the best airlines and travel agencies.

Other popular destinations

Also looking at Thailand? These cities are trending: Bangkok, Chiang Mai, Ko Samui, Krabi, Phuket.

Online agencies can show different offers for the same flight — it’s worth comparing. Filters let you narrow things down further, like selecting a specific time slot to find flights that suit you best.