$415 Cheap Thai Airways International flights Singapore (SIN) to Samui Intl. Airport (USM)

View $415 flight on Wed, May 27, 2026Opens in a new window
  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

$415 Cheap Thai Airways International flights Singapore (SIN) to Samui Intl. Airport (USM)

Prices were available within the past 7 days and start at $415 for one-way flights and $563 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thai Airways International
Wed, Nov 19 - Wed, Nov 26
SIN
Singapore
USM
Koh Samui
$563 Roundtrip, found 13 hours ago
$563
Roundtrip
found 13 hours ago
Select Thai Airways International flight, departing Wed, Nov 19 from Singapore to Koh Samui, returning Wed, Nov 26, priced at $563 found 13 hours ago
0
Flights from Singapore (SIN) to Samui Intl. Airport (USM)
Origin airport
Changi
Destination airport
Samui Intl. Airport
Airlines serving
Bangkok Airways, Scoot, Thai Airways International
Popular airline
Scoot
Distance
627 mi

Explore a world of travel with Expedia

*Available to One Key members.