How to find the cheapest flight from
Houston (IAH) to Koh Samui (USM)
What is the cheapest day to fly round-trip from Houston to Koh Samui?
Users have found that leaving on a Sunday can be a cost-effective option. It’s possible to save up to 60% on your flight compared to booking on days when demand is much higher.
When is the cheapest time to fly from Houston to Koh Samui (IAH - USM)?
It’s optimal to fly from Houston to Koh Samui in the noon. By choosing this option you can save up to 29% on the cost of your flight, compared to a flight in the morning.
One-way flights to Koh Samui from Houston
The cheapest one-way flights from Houston to Koh Samui
9:00 pm - 11:00 am
3:10 pm - 11:00 am
10:24 am - 5:50 am
Related info for your journey
Useful info, stats and facts about Houston to Koh Samui flights.
Destination information for Koh Samui
Things to know before you go. Useful info for your trip from Houston to Koh Samui