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$1,627+ Cheap flights from Houston to Ko Samui (USM)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/20. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — USM
Jun 17 — Jun 241
1 adult, Economy
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Find cheap flights from Houston to Ko Samui with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Houston to Ko Samui
Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) to Ko Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.
Round-trip from | $1,627 (Mytrip) |
|---|
Find flight deals from Houston to Ko Samui
Cheapest flights from Houston to Ko SamuiExplore the most affordable flight options available from Houston to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
Explore the most affordable flight options available from Houston to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
This Mytrip deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/209:00 pmIAH - USM
2 stops36h 10mMultiple Airlines
Sat 7/268:00 amUSM - IAH
3 stops39h 04mMultiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,627
This SmartFares deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/209:00 pmIAH - USM
2 stops36h 10mTurkish Airlines
Sat 7/264:25 pmUSM - IAH
2 stops56h 15mTurkish Airlines
Deal found 6/11![Turkish Airlines logo]()
$1,683
This FlightHub deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/191:35 amIAH - USM
2 stops27h 30mEVA Air
Sat 7/268:00 amUSM - IAH
2 stops26h 50mEVA Air
Deal found 6/11![EVA Air logo]()
$1,707
Cheapflights Fare Finder
Customize your flight search to find flights from Houston to Ko Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Houston to Ko Samui that are best for you.
Fly from
Houston
Fly to
Ko Samui
Route
Depart
Return
Price
HoustonKo Samui
IAH - USM
IAHUSM
Houston George Bush Intcntl
Sun 7/20
9:00 pm-9:10 pm
2 stops36h 10m
Ko Samui
Sat 7/26
8:00 am-11:04 am
3 stops39h 04m
$1,627
HoustonKo Samui
IAH - USM
IAHUSM
Houston George Bush Intcntl
Sun 7/20
9:00 pm-9:10 pm
2 stops36h 10m
Ko Samui
Sat 7/26
4:25 pm-12:40 pm
2 stops56h 15m
$1,683
HoustonKo Samui
IAH - USM
IAHUSM
Houston George Bush Intcntl
Sat 7/19
1:35 am-5:05 pm
2 stops27h 30m
Ko Samui
Sat 7/26
8:00 am-10:50 pm
2 stops26h 50m
$1,707
The best insider tips for Houston to Ko Samui flights
Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston to Ko Samui trip
Airlines
![United Airlines]()
United Airlines
![Spirit Airlines]()
Spirit Airlines
Consider Big Front Seats for 11 extra inches of legroom and larger tray tables.
Use Spirit Bag-O-Tron to compare baggage fees and save money on your trip.
Our travel experts
Best time to book a flight from Houston to Ko Samui
Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Houston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Houston to Ko Samui
What is the cheapest time of day to fly from HOU to USM?
Find hourly flight availability from Houston to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.
Unlike in the morning, when flights are generally more expensive, you can save up to 62% on flights from Houston to Ko Samui by exploring options for tickets in the afternoon.
What is the cheapest day to fly from Houston to Ko Samui?
Use this chart to determine the cheapest time to fly round-trip from Houston to Ko Samui. Price data was last updated on March 30, 2025.
Travelers seeking maximum savings on their Houston to Ko Samui flight should consider departing on Sunday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Rainfall in Ko Samui by month
Plan your trip to Ko Samui by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Ko Samui ranges from 2.3 - 19.3 inches per month. November is typically the wettest month, when rainfall can reach 19.3 in. February is typically the driest time to visit Ko Samui when rainfall is around 2.3 in.
Temperature in Ko Samui by month
Plan your trip to Ko Samui by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Ko Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).
Reviews of airlines servicing Ko Samui
Get insights into the airlines that provide service to Ko Samui. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ko Samui. Reviews last updated June 12, 2025.
Boarding
8.4
Comfort
8.3
Food
8.1
Overall
8.4
Entertainment
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentDale,May 2025
TPE - SFO
Boarding
8.4
Comfort
8.3
Food
8.1
Overall
8.4
Entertainment
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentDale,May 2025
TPE - SFO
Boarding
8.4
Comfort
8.3
Food
8.1
Overall
8.4
Entertainment
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentDale,May 2025
TPE - SFO
Related info for your journey
Find useful and relevant information for your journey from Houston to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Houston?
Book flights to Houston if you plan to visit one of these locationsKo Tao
Ko Pha Ngan
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Alternative routes for Houston to Ko Samui
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Houston to Ko Samui
Discover the top airline that operate flights from Houston to Ko Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,364 | Average$1,530 | FlexibilityNo cancel fee | On-time74% |