Cheap Flights from Houston to Samui International

Compare Houston to Samui International flight deals

Find the cheapest month or even day of the year to fly to Samui International

Book the best Samui International fare with no extra fees

Flight deals from Houston to Samui International

Looking for a cheap last-minute deal or the best return flight from Houston to Samui International Airport? If you want to travel next month, return fares start from R 25,289. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Houston to Samui International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Houston to Samui International flights are currently cheapest in August.

Houston to Samui International: Alternative routes

Compare routes from Houston to Koh Samui below. You may find an airport to fly into that's cheaper, faster, or easier than Samui International.

Houston to Koh Samui: Flight information

The things to know before you go.
Cheapest flight foundR 10,906
Cheapest month to flyAugust

Finding cheap flights from Houston to Samui International: Frequently asked questions

The best price we found for a return flight from Houston to Samui International is R 23,160. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Houston to Samui International. But we found flights with one stop from R 23,160.
As of July 2026, there are no flights flying from Houston to Samui International.
The cheapest month to fly from Houston to Samui International is usually November.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Houston to Samui International Airport on Wednesday, 4 November 2026.
No airlines currently offer direct flights between Houston and Samui International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Samui International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Koh Samui is around 40 days in advance, so don’t leave your flight to the last minute.

The cheapest airline that flies to Samui International is Frontier Airlines .

Flying from Houston to Ko Samui International Airport (USM): What you need to know

  • Ko Samui International Airport is located in Koh Samui. The city operates on the UTC+7 timezone and is 13 hours ahead of Houston.

  • For hassle-free travel, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This way, you can comfortably catch your flight from Houston to USM.

  • Popular months like July or holiday times such as Christmas and New Year will mean bigger lines at check-in and security. Play it safe and head to the terminal even earlier. Arriving two hours before a domestic flight and up four hours ahead of an international flight is a wise move.

Airports in Houston

Houston George Bush Intercontinental Airport (IAH)

Houston Hobby Airport (HOU)

About Ko Samui International Airport (USM)

  • Have a late flight from Houston to Ko Samui International Airport? Don't let it hijack your sleep schedule. Stay at one of these hotels near USM and get cosy, quick:

  • Booking your ride around four weeks ahead of your Houston to Ko Samui International Airport flight can help you score a better rate.

Getting from Ko Samui International Airport (USM) to central Koh Samui

  • Central Koh Samui is around 11 kilometres from Ko Samui International Airport and takes about 20 minutes to reach by car. See what your options are for getting into town, whether that's with a car hire, taxi or ride-share.

  • Travelling on public transport takes roughly 30 minutes.

How to find the cheapest flights from Houston to Ko Samui International Airport (USM)

  • Right now, R 10,906 is the best price we've found for a one-way ticket from Houston to Ko Samui International Airport. The cheapest price for a return flight is R 23,160. Remember fares can change due to availability at the time of booking.

  • Don't leave things to the last minute. You're more likely to find cheap flights from Houston to USM if you book in advance. Airlines often offer some amazing early bird rates.

  • The 'Whole month' tool will show you the cheapest Houston to Ko Samui International Airport tickets throughout the entire month. It's an easy way to find a bargain if your travel dates aren't set in stone.

  • You don't need to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll let you know when a better deal comes up on plane tickets from Houston to USM.

  • Tailor your trip using filters. Pick your preferred arrival and departure times, total journey duration and airlines. You can also sort the results by 'Best,' 'Cheapest' or 'Fastest' flights from Houston to Ko Samui International Airport.

The best time to fly from Houston to Ko Samui International Airport (USM)

  • March is the quietest month for flights from Houston to Ko Samui International Airport (USM), while November is the busiest. Work out the best time to go to Koh Samui based on whether you like a laid-back vibe or a lively atmosphere.

  • When booking your Houston to USM plane ticket, consider the kind of weather you prefer. May is the warmest month in Koh Samui, with temperatures ranging from 25ºC (77ºF) to 30ºC (86ºF).

  • Search for cheap tickets from Houston to Ko Samui International Airport in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 23ºC (73ºF) and 28ºC (82ºF).

Explore more of Thailand

  • You've seen Koh Samui, now it's time to explore more of Thailand. Journey around 129 kilometres south to Nakhon Si Thammarat to check off its top sights. From Wat Phra Phrom to Wat Pho Sadet and Wat Yai Chai Mongkol, you'll have a full itinerary ahead.

  • Around 257 kilometres southwest of Koh Samui, Phuket is another essential stop in Thailand. No visit is complete without checking out V.MarineTour- Phi Phi Islands Day Trip - Private Boat Charters, Sunrise Beach and Paradise Beach.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.