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$1,242+ Cheap flights from George Bush Intcntl (IAH) 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — USM
Jan 22 — Jan 291
1 adult, Economy
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Find cheap flights from George Bush Intcntl 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 George Bush Intcntl to Ko Samui
Best flights from George Bush Intcntl to Ko SamuiDiscover carefully curated flight deals from George Bush Intcntl to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.
Discover carefully curated flight deals from George Bush Intcntl to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.
This IEagle deal was found by Cheapflights users on 12/21. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/207:00 amIAH - USM
3 stops35h 45mEVA Air
Tue 1/279:10 pmUSM - IAH
2 stops36h 40mEVA Air
Deal found 12/21![EVA Air logo]()
$1,242
This oojo deal was found by Cheapflights users on 12/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/209:05 pmIAH - USM
2 stops56h 10mMultiple Airlines
Tue 1/278:30 pmUSM - IAH
2 stops29h 40mMultiple Airlines
Deal found 12/21![Multiple Airlines logo]()
$1,280
Find flight deals from George Bush Intcntl to Ko Samui
Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) 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 December 23, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $1,242 (IEagle) |
Cheapflights Fare Finder
Customize your flight search to find flights from George Bush Intcntl 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 December 23, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Ko Samui that are best for you.
Fly from
George Bush Intcntl
Fly to
Ko Samui
Route
Depart
Return
Price
HoustonKo Samui
IAH - USM
IAHUSM
Houston George Bush Intcntl
Tue 1/20
7:00 am-7:45 am
3 stops35h 45m
Ko Samui
Tue 1/27
9:10 pm-8:50 pm
2 stops36h 40m
$1,242
HoustonKo Samui
IAH - USM
IAHUSM
Houston George Bush Intcntl
Tue 1/20
9:05 pm-6:15 pm
2 stops56h 10m
Ko Samui
Tue 1/27
8:30 pm-1:10 pm
2 stops29h 40m
$1,280
Compare providers for flights from George Bush Intcntl to Ko Samui
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from George Bush Intcntl to Ko Samui in December.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Houston George Bush Intcntl Airport-Ko Samui flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Houston George Bush Intcntl Airport-Ko Samui flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-Ko Samui flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Houston George Bush Intcntl Airport-Ko Samui flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Houston George Bush Intcntl Airport-Ko Samui flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from George Bush Intcntl to Ko Samui
Have a flexible travel schedule? Discover the best time to fly to Ko Samui from George Bush Intcntl 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 George Bush Intcntl Airport to Ko Samui
Prices
Delays
What is the cheapest time of day to fly from IAH to USM?
Find hourly flight availability from George Bush Intcntl 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 December 23, 2025.
When flying from Houston George Bush Intcntl Airport to Ko Samui, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 77% versus a flight in the morning.
What is the cheapest day to fly from Houston George Bush Intcntl Airport to Ko Samui?
Use this chart to determine the cheapest time to fly round-trip from George Bush Intcntl to Ko Samui. Price data was last updated on March 30, 2025.
Travelers seeking maximum savings on their Houston George Bush Intcntl Airport to Ko Samui flight should consider departing on Thursday at noon when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Houston to Ko Samui delayed?
About 18% of weekly flights between Houston and Ko Samui have experienced delays in the past year, with the average delay time being 133 minutes.
What is the most punctual flight time for Houston to Ko Samui flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Houston to Ko Samui flights?
Over the last year, Atlas Air have had the lowest number of delays on this route, with just 11% of flights being delayed.
The best insider tips for Houston George Bush Intcntl Airport to Ko Samui flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to Ko Samui trip
Related info for your journey
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