Cheap flights from St. Louis to Ko Samui from $653

Travelers frequently search for route combinations, such as St. Louis and Las Vegas, Cancún, Orlando, Los Angeles, San Francisco, Denver, Mexico City, Tuxtla Gutiérrez, Toronto, Ottawa, Lima, Buenos Aires, Cali, Sydney, Warsaw, San José, Washington, D.C., Reykjavik, Fort Lauderdale, Melbourne.

Travelers frequently search for route combinations, such as Ko Samui and New York, Bangkok, Chicago, Chiang Mai, Minneapolis, Phuket City, Singapore, Krabi, Siem Reap, Ho Chi Minh City, Kuala Lumpur, Hanoi, Denpasar, Phú Quốc, Da Nang, Jakarta, Tel Aviv, Manila, Colombo, Mumbai.

The main airport in St. Louis is St. Louis Lambert International. It is also served by St. Louis Lambert International, Abraham Lincoln Capital, Evansville Regional, General Wayne A. Downing Peoria International, MidAmerica St. Louis, Columbia Regional, Central Illinois Regional, Quincy Regional, Cape Girardeau Regional, University of Illinois Willard.

The main airport in Ko Samui is Samui. It is also served by Samui, Surat Thani International, Nakhon Si Thammarat.

Currently, you can fly between St. Louis and Ko Samui with Bangkok Airways, Alaska Airlines, Thai Airways, Korean Air, Cathay Pacific.

If you don’t have specific dates for your trip between St. Louis and Ko Samui, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.

Traveling between St. Louis and Ko Samui, you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What’s more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.

There are a number of airports in and around St. Louis. The main one is St. Louis Lambert International and other nearby airports include St. Louis Lambert International, Abraham Lincoln Capital, Evansville Regional, General Wayne A. Downing Peoria International, MidAmerica St. Louis, Columbia Regional, Central Illinois Regional, Quincy Regional, Cape Girardeau Regional, University of Illinois Willard

There are a number of airports in and around Ko Samui. The main one is Samui and other nearby airports include Samui, Surat Thani International, Nakhon Si Thammarat.