Which airports can I use when flying from Houston to Ko Samui?

Flights from Houston to Ko Samui may depart from several airports in Houston area, including Houston Hobby (HOU) and Houston George Bush Intcntl (IAH). Flights usually arrive at Ko Samui (USM).

Can I save money by using flexible dates for flights from Houston to Ko Samui?

On the Houston to Ko Samui route, being flexible with your departure day can save you up to 28%. Saturday is the cheapest day at ฿42,183 return on average, while Wednesday is the most expensive at ฿58,081 – a ฿15,898 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

What popular places can I visit in Ko Samui?

Some of the most popular sights in Ko Samui are Chaweng Beach, Lamai Beach, and Maenam Beach. These are among the most viewed places in Ko Samui on KAYAK.

Do I need a passport to fly from Houston to Ko Samui?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Have flight prices from Houston to Ko Samui changed much recently?

Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about ฿40,690 to ฿313,138. That means the highest observed fare was about 8x higher than the lowest one.

How are flight prices from Houston to Ko Samui looking right now?

One-way fares from Houston to Ko Samui are currently in line with typical prices for this route. Average one-way fares are about ฿22,652.

What is the time difference between Houston and Ko Samui?

Ko Samui is 12 hours ahead of Houston (Indochina Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Which car hire options are available at Ko Samui Airport (USM)?

Ko Samui Airport (USM) hosts 5 major car hire companies, with daily rates starting from around ฿450 for economy cars. Top options include: • Drive Car Rental • Alamo • Sixt • Enterprise Rent-A-Car • Hertz

฿21,141 CHEAP FLIGHTS from Houston to Ko Samui (HO1 - USM)

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Cheapest return flight

฿40,690

Typical prices: ฿42,191-฿49,366

Cathay Pacific

Tue 30/10Tue 6/11

HOU - USM • 2 stops

Cheapest one-way flight

฿21,141

Typical prices: ฿21,968-฿24,226

Multiple Airlines

Thu 8/11

IAH - USM • 2 stops

When to travel

September

Cheapest • 18% price drop

May

Most popular

Good to know

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We hope you enjoy your trip to Ko Samui!

Flight Deals

Cheap Flights from Houston to Ko Samui

Discover the best prices for you by selecting your travel dates on KAYAK.

Return

One-way

Recent return flight deals from Houston to Ko Samui

Fri 30 Oct - Fri 6 Nov

17:06 - 19:35HOU Houston Hobby-USM Ko Samui

38h 29m2 stops Dallas/Fort Worth Hong Kong Intl

07:55 - 19:39USM Ko Samui-HOU Houston Hobby

24h 44m3 stops Bangkok Suvarnabhumi Hong Kong Intl Dallas/Fort Worth

฿40,690Multiple Airlines

Sun 25 Oct - Sun 1 Nov

20:04 - 19:35IAH Houston George Bush Intcntl-USM Ko Samui

35h 31m2 stops Los Angeles Hong Kong Intl

20:20 - 14:38USM Ko Samui-IAH Houston George Bush Intcntl

31h 18m2 stops Bangkok Suvarnabhumi Vancouver Intl

฿40,789Multiple Airlines

Sat 24 Oct - Sun 1 Nov

20:06 - 19:35IAH Houston George Bush Intcntl-USM Ko Samui

35h 29m2 stops Dallas/Fort Worth Hong Kong Intl

20:30 - 14:38USM Ko Samui-IAH Houston George Bush Intcntl

31h 08m2 stops Bangkok Suvarnabhumi Vancouver Intl

฿42,781Multiple Airlines

Sun 25 Oct - Sun 1 Nov

20:24 - 08:10HOU Houston Hobby-USM Ko Samui

47h 46m3 stops Dallas/Fort Worth Tokyo Haneda Bangkok Suvarnabhumi

21:10 - 11:05USM Ko Samui-HOU Houston Hobby

50h 55m3 stops Bangkok Suvarnabhumi Tokyo Haneda Dallas/Fort Worth

฿44,241Japan Airlines

Fri 30 Oct - Wed 4 Nov

00:40 - 08:10IAH Houston George Bush Intcntl-USM Ko Samui

43h 30m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

10:20 - 20:50USM Ko Samui-IAH Houston George Bush Intcntl

23h 30m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl

฿45,602EVA Air

Tue 29 Sep - Mon 12 Oct

07:25 - 08:35IAH Houston George Bush Intcntl-USM Ko Samui

37h 10m3 stops Los Angeles Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

11:45 - 22:15USM Ko Samui-IAH Houston George Bush Intcntl

22h 30m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl

฿46,332EVA Air

Tue 29 Sep - Mon 12 Oct

18:15 - 10:30IAH Houston George Bush Intcntl-USM Ko Samui

28h 15m2 stops Doha Hamad Intl Phuket City

21:00 - 15:55USM Ko Samui-IAH Houston George Bush Intcntl

30h 55m2 stops Bangkok Suvarnabhumi Doha Hamad Intl

฿46,631Multiple Airlines

Sat 24 Oct - Sun 1 Nov

17:06 - 08:10HOU Houston Hobby-USM Ko Samui

51h 04m3 stops Dallas/Fort Worth Tokyo Haneda Bangkok Suvarnabhumi

21:10 - 13:37USM Ko Samui-HOU Houston Hobby

53h 27m3 stops Bangkok Suvarnabhumi Tokyo Haneda Dallas/Fort Worth

฿46,763Japan Airlines

Wed 21 Oct - Mon 26 Oct

01:00 - 13:45IAH Houston George Bush Intcntl-USM Ko Samui

24h 45m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

21:10 - 22:00USM Ko Samui-IAH Houston George Bush Intcntl

36h 50m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl

฿46,830EVA Air

Sat 31 Oct - Wed 4 Nov

17:06 - 08:10HOU Houston Hobby-USM Ko Samui

51h 04m3 stops Dallas/Fort Worth Tokyo Haneda Bangkok Suvarnabhumi

21:10 - 13:37USM Ko Samui-HOU Houston Hobby

53h 27m3 stops Bangkok Suvarnabhumi Tokyo Narita Dallas/Fort Worth

฿46,863Japan Airlines

Booking Insights

Price, demand, and travel trends for Houston to Ko Samui flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Houston to Ko Samui with more confidence.

What is the cheapest airline to fly from Houston to Ko Samui?

Japan Airlines (฿44,241) and EVA Air (฿45,602) are the cheapest airlines to fly return from Houston to Ko Samui according to KAYAK data over the last 5 days.

Find deals

Low season	December
High season	May
Cheapest flight	฿21,141

Most popular time to fly (29% more expensive on average)

Flights from Houston George Bush Intcntl Airport to Ko Samui

When to book flights from Houston to Ko Samui

Are your dates flexible? Find out the best times to travel from Houston to Ko Samui based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated return price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which airports can I use when flying from Houston to Ko Samui?
Flights from Houston to Ko Samui may depart from several airports in Houston area, including Houston Hobby (HOU) and Houston George Bush Intcntl (IAH). Flights usually arrive at Ko Samui (USM).
Can I save money by using flexible dates for flights from Houston to Ko Samui?
On the Houston to Ko Samui route, being flexible with your departure day can save you up to 28%. Saturday is the cheapest day at ฿42,183 return on average, while Wednesday is the most expensive at ฿58,081 – a ฿15,898 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
What popular places can I visit in Ko Samui?
Some of the most popular sights in Ko Samui are Chaweng Beach, Lamai Beach, and Maenam Beach. These are among the most viewed places in Ko Samui on KAYAK.
Do I need a passport to fly from Houston to Ko Samui?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
Have flight prices from Houston to Ko Samui changed much recently?
Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about ฿40,690 to ฿313,138. That means the highest observed fare was about 8x higher than the lowest one.
How are flight prices from Houston to Ko Samui looking right now?
One-way fares from Houston to Ko Samui are currently in line with typical prices for this route. Average one-way fares are about ฿22,652.
What is the time difference between Houston and Ko Samui?
Ko Samui is 12 hours ahead of Houston (Indochina Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.
Which car hire options are available at Ko Samui Airport (USM)?
Ko Samui Airport (USM) hosts 5 major car hire companies, with daily rates starting from around ฿450 for economy cars. Top options include:
• Drive Car Rental
• Alamo
• Sixt
• Enterprise Rent-A-Car
• Hertz

If your dates are flexible, aim for a Saturday departure instead of Wednesday. On this route, Saturday flights average ฿42,183 – about ฿15,898 less than Wednesday (27% savings) based on the last 12 months.
If you can choose when to travel, plan your Houston to Ko Samui trip for September. Fares historically average ฿36,939 return in that month – typically ฿21,141 less than the most expensive month, which is May (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Ko Samui Airport.
- Ozo Chaweng Samui - Sha Extra Plus
- Cosi Samui Chaweng Beach
- Melia Koh Samui

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฿21,141 Find Cheap Flights from Houston to Ko Samui – Compare and Save

Everything you should know

Cheap Flights from Houston to Ko Samui

Recent return flight deals from Houston to Ko Samui

Recent one-way flight deals from Houston to Ko Samui

Price, demand, and travel trends for Houston to Ko Samui flights

What is the cheapest airline to fly from Houston to Ko Samui?

Key details for Houston to Ko Samui flights

Low season

High season

Cheapest flight

When to book flights from Houston to Ko Samui

Your Houston to Ko Samui flight questions, answered

Your guide to booking Houston to Ko Samui flights

More options for your flight from Houston to Ko Samui

Complete your trip to Ko Samui with a hotel stay or car hire

Information on your arrival and departure airports

Cabin class types available on flights from Houston to Ko Samui

Flights from domestic origins to Ko Samui

Flights to other popular destinations