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$1,153+ 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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — USM
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap 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 septiembre 11, 2025.

Round-trip from

$1,207
(IEagle)
From Houston George Bush Intcntl to Ko Samui
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Cheapest flights from George Bush Intcntl to Ko Samui
Explore the most affordable flight options available from George Bush Intcntl to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This FlightHub deal was found by Cheapflights users on 9/10. 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.
sáb. 9/131:10 amIAH - USM
2 stops27h 55mEVA Air
mar. 9/168:50 pmUSM - IAH
2 stops37h 35mEVA Air
Deal found 9/10$1,153
This EVA Air deal was found by Cheapflights users on 9/8. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/171:10 amIAH - USM
2 stops27h 25mEVA Air
lun. 9/228:00 amUSM - IAH
2 stops26h 25mEVA Air
Deal found 9/8$1,183
This Gotogate deal was found by Cheapflights users on 9/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/249:00 pmIAH - USM
2 stops48h 05mTurkish Airlines
vie. 10/318:15 amUSM - IAH
2 stops41h 55mTurkish Airlines
Deal found 9/9$1,184
This Mytrip deal was found by Cheapflights users on 9/9. 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.
vie. 10/249:38 amIAH - USM
3 stops34h 22mMultiple Airlines
vie. 10/3112:00 pmUSM - IAH
2 stops29h 20mMultiple Airlines
Deal found 9/9$1,315
This Gurufare deal was found by Cheapflights users on 9/9. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/231:00 amIAH - USM
2 stops24h 45mEVA Air
vie. 10/3110:00 amUSM - IAH
2 stops24h 00mEVA Air
Deal found 9/9$1,337
This EVA Air deal was found by Cheapflights users on 9/10. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/11:00 amIAH - USM
2 stops31h 50mEVA Air
lun. 10/68:45 amUSM - IAH
2 stops25h 30mEVA Air
Deal found 9/10$1,393
This Mytrip deal was found by Cheapflights users on 9/10. 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.
sáb. 9/131:10 amIAH - USM
2 stops27h 25mMultiple Airlines
mar. 9/168:50 pmUSM - IAH
3 stops33h 52mMultiple Airlines
Deal found 9/10$1,399
This Qatar Airways deal was found by Cheapflights users on 9/9. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/26:25 pmIAH - USM
2 stops30h 45mQatar Airways
lun. 10/64:25 pmUSM - IAH
2 stops35h 25mQatar Airways
Deal found 9/9$1,517

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 septiembre 11, 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

mié. 9/17

1:10 am-4:35 pm

2 stops27h 25m

Ko Samui

lun. 9/22

8:00 am-10:25 pm

2 stops26h 25m

$1,183

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

vie. 10/24

9:00 pm-9:05 am

2 stops48h 05m

Ko Samui

vie. 10/31

8:15 am-2:10 pm

2 stops41h 55m

$1,184

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

vie. 10/24

9:38 am-8:00 am

3 stops34h 22m

Ko Samui

vie. 10/31

12:00 pm-5:20 am

2 stops29h 20m

$1,315

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

jue. 10/23

1:00 am-1:45 pm

2 stops24h 45m

Ko Samui

vie. 10/31

10:00 am-10:00 pm

2 stops24h 00m

$1,337

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

dom. 9/14

7:25 am-8:15 am

3 stops36h 50m

Ko Samui

mar. 9/16

8:50 pm-10:25 pm

2 stops37h 35m

$1,354

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

mié. 10/1

1:00 am-8:50 pm

2 stops31h 50m

Ko Samui

lun. 10/6

8:45 am-10:15 pm

2 stops25h 30m

$1,393

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

jue. 10/2

6:25 pm-1:10 pm

2 stops30h 45m

Ko Samui

lun. 10/6

4:25 pm-3:50 pm

2 stops35h 25m

$1,517

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

The best insider tips for Houston George Bush Intcntl Airport 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 George Bush Intcntl Airport to Ko Samui trip
Airlines
United Airlines

United's Polaris Class offers lie-flat seats and Saks Fifth Avenue bedding for ultimate comfort.


United's Premium Plus includes two checked bags, priority check-in, and upgraded meals.

Read more about United Airlinesby Harriet Baskas
Spirit Airlines

Spirit's Big Front Seats offer 11 inches more legroom, ideal for long-haul comfort.


Spirit's Wi-Fi plans allow streaming; book ahead for long flights.

Read more about Spirit Airlinesby Daniel Scheffler
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Daniel Scheffler

Daniel Scheffler

Expert on Spirit Airlines

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more

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

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 septiembre 11, 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 afternoon, which can drop the price by up to 48% 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.

Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ko Samui from Houston George Bush Intcntl?

    Most people fly into Ko Samui (USM) if they book a flight to Ko Samui from Houston George Bush Intcntl. On average, Ko Samui has 0 inbound flights from Houston George Bush Intcntl per day from 0 airlines. Ko Samui is conveniently located just 2.1 mi from Ko Samui’s city center.

  • How long is the flight from Houston George Bush Intcntl Airport to Ko Samui?

    There are many flights that can get you from Houston George Bush Intcntl Airport to Ko Samui in 27h 25m. Fly via EVA Air or Turkish Airlines to get the fastest option. Houston George Bush Intcntl Airport and Ko Samui are separated by a distance of 9513 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from George Bush Intcntl to Ko Samui that include hotel bookings?

    Yes. In addition to deals on George Bush Intcntl to Ko Samui flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from George Bush Intcntl to Ko Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from George Bush Intcntl to Ko Samui.

  • Can I find deals for business class flights from George Bush Intcntl to Ko Samui?

    Yes. Cheapflights offers flight deals from George Bush Intcntl to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Tao
Ko Pha Ngan

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