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Ko Samui

$638+ Cheap flights from George Bush Intcntl (IAH) to Ko Samui (USM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — USM
Jul 30 — Aug 61
Wed 7/30
Wed 8/6
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 July 25, 2025.

Round-trip from

$1,116
(FlightHub)

One-way from

$638
(Mytrip)
From Houston George Bush Intcntl to Ko Samui
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One-way flight 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 July 25, 2025.

This FlightHub deal was found by Cheapflights users on 7/23. 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.
Mon 9/221:10 amIAH - USM
2 stops26h 00mEVA Air
Wed 10/111:45 amUSM - IAH
2 stops22h 30mEVA Air
Deal found 7/23$1,116
This FlightHub deal was found by Cheapflights users on 7/23. 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.
Tue 9/239:00 pmIAH - USM
2 stops33h 30mTurkish Airlines
Wed 10/14:25 pmUSM - IAH
2 stops38h 40mTurkish Airlines
Deal found 7/23$1,122
This Gurufare deal was found by Cheapflights users on 7/23. 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.
Tue 9/232:04 pmIAH - USM
3 stops54h 11mJapan Airlines
Wed 10/17:10 pmUSM - IAH
3 stops36h 28mJapan Airlines
Deal found 7/23$1,156
This Mytrip deal was found by Cheapflights users on 7/23. 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.
Thu 10/234:50 pmIAH - USM
2 stops32h 20mMultiple Airlines
Tue 11/47:55 amUSM - IAH
3 stops33h 35mMultiple Airlines
Deal found 7/23$1,280
This Qatar Airways deal was found by Cheapflights users on 7/22. 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.
Thu 9/186:25 pmIAH - USM
2 stops28h 05mQatar Airways
Mon 9/225:55 pmUSM - IAH
2 stops33h 55mQatar Airways
Deal found 7/22$1,566

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 July 25, 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

Mon 9/22

1:10 am-3:10 pm

2 stops26h 00m

Ko Samui

Wed 10/1

11:45 am-10:15 pm

2 stops22h 30m

$1,116

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

Tue 9/23

9:00 pm-6:30 pm

2 stops33h 30m

Ko Samui

Wed 10/1

4:25 pm-7:05 pm

2 stops38h 40m

$1,122

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

Tue 9/23

2:04 pm-8:15 am

3 stops54h 11m

Ko Samui

Wed 10/1

7:10 pm-7:38 pm

3 stops36h 28m

$1,156

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

Thu 10/2

4:50 pm-6:15 pm

2 stops37h 25m

Ko Samui

Sat 10/18

6:55 pm-4:30 am

3 stops45h 35m

$1,307

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

Thu 9/18

6:25 pm-10:30 am

2 stops28h 05m

Ko Samui

Mon 9/22

5:55 pm-3:50 pm

2 stops33h 55m

$1,566

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

Fri 8/8

6:45 am-4:45 pm

3 stops46h 00m

$638

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

Thu 8/7

1:35 am-9:35 pm

2 stops32h 00m

$734

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

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 July 25, 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.

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 July 25, 2025.
Get a feel of what it's like to fly with EVA Air, Japan Airlines, and Qatar Airways from Houston George Bush Intcntl Airport to Ko Samui by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,219 reviews

Overall

8.4

Boarding

8.4

Food

8.1

Entertainment

8.0

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,219 reviews
EVA Air
8.4
Very good
1,219 reviews

Overall

8.4

Boarding

8.4

Food

8.1

Entertainment

8.0

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Japan Airlines
8.3
Very good
1,529 reviews
EVA Air
8.4
Very good
1,219 reviews

Overall

8.4

Boarding

8.4

Food

8.1

Entertainment

8.0

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Qatar Airways
7.4
Good
3,611 reviews
EVA Air
8.4
Very good
1,219 reviews

Overall

8.4

Boarding

8.4

Food

8.1

Entertainment

8.0

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Turkish Airlines
7.3
Good
3,916 reviews
EVA Air
8.4
Very good
1,219 reviews

Overall

8.4

Boarding

8.4

Food

8.1

Entertainment

8.0

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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.

  • What are the cheapest airlines flying from Houston George Bush Intcntl Airport to Ko Samui round-trip?

    EVA Air, at $1,116, was found to be the cheapest airline from Houston George Bush Intcntl Airport to Ko Samui.Alternate airlines to your destination round-trip include Turkish Airlines and Japan Airlines.

  • 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 Pha Ngan
Ko Tao

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