Cheap Bangkok Airways flights Trat (TDX) to Samui Intl. Airport (USM)

Landing cheap one-way Bangkok Airways flights from TDX to USM on Expedia is a breeze — just filter by "Price (lowest to highest)." Or check out our affordable return fares for your next exciting adventure.*

*These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

October is one of the cheapest months to jet away to Koh Samui with Bangkok Airways. You could also find excellent prices on one-way and return fares in September.

Use our "Nonstop" filter when looking for direct Bangkok Airways flights from TDX to USM. It's also a great way to compare other airlines servicing the same nonstop route.

Ko Samui Airport (USM) is the primary Koh Samui gateway for Bangkok Airways flights from Trat Airport (TDX).

A standard economy flight with Bangkok Airways from TDX to USM allows 1 cabin bag and a small personal article. Your carry-on allowance is 1 cabin bag up to 5 kgs with dimensions no larger than 22 inches x 14 inches x 9 inches. Weight and size restrictions can differ based on your cabin class and airfare type. To avoid extra charges at the terminal, check your Bangkok Airways booking or visit the airline's website before packing.

Depending on the type of ticket you purchased, a fee may apply if you modify or cancel your flight more than 24 hours after it's been confirmed. To find flexible plane tickets, select our "No cancel fee" or "Changes included" filter when searching for flights. For more information on modifying or canceling your reservation, head to "Trips," select your flight and tick "Manage Booking."