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Koh Samui

$702+ Cheap flights from Houston to Koh 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — USM
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Houston to Koh Samui

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) to Koh 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 February 20, 2025.

Round-trip from

$2,353
(FlightHub)

One-way from

$702
(FlightHub)
From Houston to Ko Samui
Search Deals
One-way flight from Houston to Ko Samui
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Find flight deals from Houston to Koh Samui

Cheapest flights from Houston to Koh Samui
Explore the most affordable flight options available from Houston to Koh Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This FlightHub deal was found by Cheapflights users on 2/20. 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.
Tue 9/301:10 amIAH - USM
2 stops32h 25mEVA Air
Thu 10/168:00 amUSM - IAH
2 stops26h 15mEVA Air
Deal found 2/20$1,309
This FlightHub deal was found by Cheapflights users on 2/20. 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.
Wed 10/16:10 pmIAH - USM
2 stops27h 10mQatar Airways
Thu 10/165:55 pmUSM - IAH
2 stops33h 55mQatar Airways
Deal found 2/20$1,366
This Gurufare deal was found by Cheapflights users on 2/20. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:00 pmIAH - USM
2 stops58h 35mCathay Pacific
Thu 10/167:00 amUSM - IAH
3 stops27h 00mCathay Pacific
Deal found 2/20$1,906
This KAYAK deal was found by Cheapflights users on 2/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:00 pmIAH - USM
3 stops48h 35mJapan Airlines
Thu 10/167:30 pmUSM - IAH
3 stops54h 06mJapan Airlines
Deal found 2/20$1,984
This AranGrant deal was found by Cheapflights users on 2/19. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:00 amHOU - USM
3 stops38h 15mMultiple Airlines
Fri 10/316:05 pmUSM - HOU
3 stops54h 29mMultiple Airlines
Deal found 2/19$3,625
This AranGrant deal was found by Cheapflights users on 2/19. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/37:00 amHOU - USM
3 stops35h 40mJapan Airlines
Wed 3/127:00 pmUSM - HOU
3 stops32h 13mJapan Airlines
Deal found 2/19$5,787

Find flights from Houston to Koh Samui within your budget

Customize your flight search to find flights from Houston to Koh 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 February 20, 2025.

Fly from

Houston

Fly to

Koh Samui

Route

Depart

Return

Price

HoustonKoh Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

Mon 3/3

11:30 pm-8:55 pm

2 stops32h 25m

Ko Samui

Wed 3/12

9:30 pm-10:00 pm

2 stops36h 30m

$2,353

HoustonKoh Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

Mon 3/3

7:55 pm-8:45 pm

3 stops35h 50m

Ko Samui

Wed 3/12

7:00 pm-7:16 pm

3 stops36h 16m

$5,722

HoustonKoh Samui

HOU - USM

HOUUSM

Houston Hobby

Mon 3/3

7:00 am-7:40 am

3 stops35h 40m

Ko Samui

Wed 3/12

7:00 pm-3:13 pm

3 stops32h 13m

$5,787

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Best time to book a flight from Houston to Koh Samui

Have a flexible travel schedule? Discover the best time to fly to Koh 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.

Travel insights for flights from Houston to Koh Samui

Get recent, data-driven insights about flights from Houston to Koh Samui including ideal travel times, pricing trends, and more.

What is the cheapest time of day to fly from HOU to USM?

Find hourly flight availability from Houston to Koh Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 64% on flights from Houston to Koh Samui by exploring options for tickets in the evening.

What is the cheapest day to fly from Houston to Koh Samui?

Use this chart to determine the cheapest time to fly round-trip from Houston to Koh Samui. Price data was last updated on February 16, 2025.

Travelers seeking maximum savings on their Houston to Koh 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 Koh Samui by month

Plan your trip to Koh Samui by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Koh 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 Koh Samui when rainfall is around 2.3 in.

Temperature in Koh Samui by month

Plan your trip to Koh Samui by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Koh 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 Koh Samui

Get insights into the airlines that provide service to Koh 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 Koh Samui. Reviews last updated February 20, 2025.
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Boarding

8.4

Food

8.0

Comfort

8.2

Overall

8.4

Crew

8.6

Reviews

1 / 20

8.0
Excellent

Anonymous,Feb 2025

TPE - SEA

The films were difficult to hear over the noise of the airplane engines. Subtitles in ENGLISH would have been great.

EVA Air
8.4
Very good
1,200 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Boarding

8.4

Food

8.0

Comfort

8.2

Overall

8.4

Crew

8.6

Reviews

1 / 20

8.0
Excellent

Anonymous,Feb 2025

TPE - SEA

The films were difficult to hear over the noise of the airplane engines. Subtitles in ENGLISH would have been great.

Japan Airlines
8.3
Very good
1,440 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Boarding

8.4

Food

8.0

Comfort

8.2

Overall

8.4

Crew

8.6

Reviews

1 / 20

8.0
Excellent

Anonymous,Feb 2025

TPE - SEA

The films were difficult to hear over the noise of the airplane engines. Subtitles in ENGLISH would have been great.

Emirates
8.1
Very good
3,279 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Boarding

8.4

Food

8.0

Comfort

8.2

Overall

8.4

Crew

8.6

Reviews

1 / 20

8.0
Excellent

Anonymous,Feb 2025

TPE - SEA

The films were difficult to hear over the noise of the airplane engines. Subtitles in ENGLISH would have been great.

Singapore Airlines
8.1
Very good
1,299 reviews
EVA Air
8.4
Very good
1,200 reviews

Entertainment

8.0

Boarding

8.4

Food

8.0

Comfort

8.2

Overall

8.4

Crew

8.6

Reviews

1 / 20

8.0
Excellent

Anonymous,Feb 2025

TPE - SEA

The films were difficult to hear over the noise of the airplane engines. Subtitles in ENGLISH would have been great.

Related info for your journey

Find useful and relevant information for your journey from Houston to Koh 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 Koh Samui from Houston?

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

  • Can I find deals for flights from Houston to Koh Samui that include hotel bookings?

    Yes. In addition to deals on Houston to Koh Samui flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Houston to Koh Samui?

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

  • Can I find deals for business class flights from Houston to Koh Samui?

    Yes. Cheapflights offers flight deals from Houston to Koh 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 Houston?

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

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Alternative routes for Houston to Koh Samui

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