$363 Cheap Thai Airways International flights Kolkata (CCU) to Samui Intl. Airport (USM)

Set the "Price (lowest to highest)" filter on Expedia to find cheap Thai Airways International round-trip flights from $634 from CCU to USM. Affordable one-way options from $363 are available too.**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.

Landing the best Thai Airways International deals from CCU to USM often comes down to booking at the right time. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. As an added bonus, you can pocket 17% on average by buying your fare on a Sunday compared to a Friday, which is usually the most expensive day to book.* It's a good idea to start checking out flights about one month before your travel dates.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.

Find Thai Airways International's earliest flights from CCU to USM by using the "Early Morning" and "Morning" filters. Not only will you arrive sooner, early departures also experience 20% fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.

Travel from CCU to USM with Thai Airways International and look forward to a range of benefits starting with top-tier customer service. When you book through Expedia as a Thai Royal Orchid Plus and One Key™ member, you may also earn OneKeyCash™* to use on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.