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$848+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — USM
oct. 22 — oct. 291
mié. 10/22
mié. 10/29
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 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$848
(lol.travel)
Provider with most accurate pricing for Houston George Bush Intcntl-Ko Samui flight deals.
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Provider most trusted by Cheapflights users for Houston George Bush Intcntl-Ko Samui flights.
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From Houston George Bush Intcntl to Ko Samui
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Find flight deals from George Bush Intcntl to Ko Samui

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 22, 2025.

This lol.travel deal was found by Cheapflights users on 9/21. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/77:20 amIAH - USM
2 stops25h 50mMultiple Airlines
sáb. 10/111:30 pmUSM - IAH
2 stops28h 16mMultiple Airlines
Deal found 9/21$848
This oojo deal was found by Cheapflights users on 9/20. 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.
mié. 10/12:25 pmIAH - USM
2 stops42h 45mMultiple Airlines
lun. 10/67:30 pmUSM - IAH
2 stops35h 35mMultiple Airlines
Deal found 9/20$1,235
This EVA Air deal was found by Cheapflights users on 9/21. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/2912:40 amIAH - USM
2 stops42h 50mEVA Air
lun. 11/38:30 amUSM - IAH
2 stops25h 20mEVA Air
Deal found 9/21$1,284
This FlightHub deal was found by Cheapflights users on 9/20. 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.
mar. 9/301:10 amIAH - USM
2 stops25h 35mEVA Air
lun. 10/69:00 pmUSM - IAH
2 stops37h 15mEVA Air
Deal found 9/20$1,316
This EVA Air deal was found by Cheapflights users on 9/21. 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 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 stops29h 30mEVA Air
lun. 10/68:00 amUSM - IAH
2 stops26h 15mEVA Air
Deal found 9/21$1,394
This Turkish Airlines deal was found by Cheapflights users on 9/20. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/3010:05 pmIAH - USM
2 stops47h 00mTurkish Airlines
lun. 11/31:25 pmUSM - IAH
2 stops66h 45mTurkish Airlines
Deal found 9/20$1,432
This Qatar Airways deal was found by Cheapflights users on 9/21. 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 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 stops35h 50mQatar Airways
lun. 10/64:25 pmUSM - IAH
2 stops35h 25mQatar Airways
Deal found 9/21$1,518
This British Airways deal was found by Cheapflights users on 9/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/233:50 pmIAH - USM
2 stops37h 25mBritish Airways
mar. 1/61:25 pmUSM - IAH
2 stops37h 40mBritish Airways
Deal found 9/21$2,398
This British Airways deal was found by Cheapflights users on 9/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/243:50 pmIAH - USM
2 stops37h 25mBritish Airways
mar. 1/64:25 pmUSM - IAH
2 stops34h 40mBritish Airways
Deal found 9/21$2,403
This British Airways deal was found by Cheapflights users on 9/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/223:50 pmIAH - USM
2 stops37h 25mBritish Airways
mar. 1/61:25 pmUSM - IAH
2 stops37h 40mBritish Airways
Deal found 9/21$2,445
This British Airways deal was found by Cheapflights users on 9/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/233:50 pmIAH - USM
2 stops37h 25mBritish Airways
mié. 1/71:25 pmUSM - IAH
2 stops37h 40mBritish Airways
Deal found 9/21$2,453

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 22, 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. 10/29

12:40 am-7:10 am

2 stops42h 30m

Ko Samui

lun. 11/3

8:30 am-8:50 pm

2 stops25h 20m

$1,284

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

jue. 10/30

10:05 pm-9:05 am

2 stops47h 00m

Ko Samui

lun. 11/3

1:25 pm-7:10 pm

2 stops66h 45m

$1,432

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

mar. 10/7

6:44 am-6:30 pm

3 stops47h 46m

Ko Samui

sáb. 10/11

8:45 am-5:20 am

3 stops32h 35m

$1,492

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

jue. 10/2

6:25 pm-6:15 pm

2 stops35h 50m

Ko Samui

lun. 10/6

4:25 pm-3:50 pm

2 stops35h 25m

$1,518

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

jue. 10/30

6:45 pm-1:05 pm

2 stops30h 20m

Ko Samui

lun. 11/3

1:25 pm-3:15 pm

2 stops38h 50m

$1,518

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

mar. 12/23

3:50 pm-6:15 pm

2 stops37h 25m

Ko Samui

mar. 1/6

1:25 pm-2:05 pm

2 stops37h 40m

$2,398

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

lun. 12/22

3:50 pm-6:15 pm

2 stops37h 25m

Ko Samui

mar. 1/6

1:25 pm-2:05 pm

2 stops37h 40m

$2,445

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

mar. 12/23

3:50 pm-6:15 pm

2 stops37h 25m

Ko Samui

mié. 1/7

1:25 pm-2:05 pm

2 stops37h 40m

$2,453

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

dom. 12/21

9:50 pm-6:15 pm

2 stops31h 25m

Ko Samui

mar. 1/6

4:25 pm-2:05 pm

2 stops34h 40m

$2,638

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/20

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 September.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Houston George Bush Intcntl Airport-Ko Samui flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Houston George Bush Intcntl Airport-Ko Samui flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

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 22, 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 35h 50m. Fly via EVA Air, Turkish Airlines, or Qatar Airways 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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