What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

How often are flights from Houston to Ko Samui delayed?

Historically, on average around 15% of flights between Houston and Ko Samui have experienced a delay on any given week. The average delay length over the past 12 months has been 132 minutes.

Which airline has the best punctuality record on Houston to Ko Samui flights?

According to our data, Atlas Air have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

What is the most punctual flight time for Houston to Ko Samui flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

When did momondo last update prices for flights from Houston to Ko Samui Airport?

Prices for flights from Houston to Ko Samui Airport are updated daily.

How old do you have to be to fly from Houston to Ko Samui Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston to Ko Samui Airport.

What documentation or ID do you need to fly to Ko Samui Airport?

The travel and health documents you'll need for your trip to Ko Samui Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ko Samui Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$79 Cheap Flights from Houston to Ko Samui in 2025/26

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Houston to Ko Samui

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:55 pm - 8:05 am

IAH

USM

28h 10m2 stops

1:25 pm - 8:10 pm

USM

IAH

66h 45m2 stops

$1,191Multiple Airlines

Sun, Mar 15 - Sun, Mar 22

11:30 pm - 4:40 pm

IAH

USM

28h 10m2 stops

7:15 am - 8:50 pm

USM

IAH

26h 35m2 stops

$1,348EVA Air

Thu, Jan 15 - Thu, Jan 22

9:25 am - 8:00 am

IAH

USM

33h 35m3 stops

6:05 pm - 12:19 am

USM

IAH

43h 14m3 stops

$1,434Multiple Airlines

Thu, Jan 15 - Thu, Jan 22

9:25 am - 8:00 am

IAH

USM

33h 35m3 stops

8:55 am - 8:50 pm

USM

IAH

24h 55m2 stops

$1,694Multiple Airlines

Thu, Jan 15 - Thu, Jan 22

4:45 pm - 8:35 am

IAH

USM

27h 50m2 stops

4:25 pm - 3:44 pm

USM

IAH

35h 19m2 stops

$1,751Multiple Airlines

Wed, May 27 - Sat, Jun 6

4:45 pm - 8:15 am

IAH

USM

27h 30m2 stops

8:50 pm - 3:44 pm

USM

IAH

30h 54m3 stops

$1,791Multiple Airlines

Wed, May 27 - Sat, Jun 6

7:42 pm - 7:35 pm

IAH

USM

35h 53m2 stops

8:30 am - 10:31 pm

USM

IAH

26h 01m3 stops

$1,875Cathay Pacific

Sun, Mar 15 - Sun, Mar 22

7:42 pm - 5:40 pm

IAH

USM

33h 58m3 stops

7:55 am - 10:31 pm

USM

IAH

26h 36m3 stops

$1,944Cathay Pacific

Sun, Mar 15 - Sun, Mar 22

7:10 pm - 4:40 pm

IAH

USM

32h 30m2 stops

8:15 am - 4:20 pm

USM

IAH

45h 05m2 stops

$4,001Emirates

Fri, Jan 16 - Fri, Jan 23

Cathay Pacific flights from Houston to Ko Samui

Our best Cathay Pacific deals on Houston to Ko Samui flight tickets

Cathay Pacific

Mar 9

IAH7:42 pmHouston George Bush Intcntl

47h 28m

3 stops

USM7:10 amKo Samui

Mar 14

USM11:40 amKo Samui

43h 31m

2 stops

IAH7:11 pmHouston George Bush Intcntl

$1,593

Find similar

Cathay Pacific

Mar 15

IAH7:42 pmHouston George Bush Intcntl

35h 53m

2 stops

USM7:35 pmKo Samui

Mar 22

USM8:30 amKo Samui

26h 01m

3 stops

IAH10:31 pmHouston George Bush Intcntl

$1,875

Find similar

Cathay Pacific

Mar 15

IAH7:42 pmHouston George Bush Intcntl

33h 58m

3 stops

USM5:40 pmKo Samui

Mar 22

USM7:55 amKo Samui

26h 36m

3 stops

IAH10:31 pmHouston George Bush Intcntl

$1,944

Find similar

Fly from

Fly to

Route

Depart

Return

Price

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

Sun 3/15

3:55 pm-8:05 am

2 stops28h 10m

Ko Samui

Sun 3/22

1:25 pm-8:10 pm

2 stops66h 45m

$1,191

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

Thu 1/15

11:30 pm-4:40 pm

2 stops28h 10m

Ko Samui

Thu 1/22

7:15 am-8:50 pm

2 stops26h 35m

$1,348

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

Thu 1/15

9:25 am-8:00 am

3 stops33h 35m

Ko Samui

Thu 1/22

6:05 pm-12:19 am

3 stops43h 14m

$1,434

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

Thu 1/15

9:25 am-8:00 am

3 stops33h 35m

Ko Samui

Thu 1/22

8:55 am-8:50 pm

2 stops24h 55m

$1,694

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

Wed 5/27

4:45 pm-8:35 am

2 stops27h 50m

Ko Samui

Sat 6/6

4:25 pm-3:44 pm

2 stops35h 19m

$1,751

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

Wed 5/27

4:45 pm-8:15 am

2 stops27h 30m

Ko Samui

Sat 6/6

8:50 pm-3:44 pm

3 stops30h 54m

$1,791

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

Sun 3/15

7:42 pm-7:35 pm

2 stops35h 53m

Ko Samui

Sun 3/22

8:30 am-10:31 pm

3 stops26h 01m

$1,875

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

Sun 3/15

7:42 pm-5:40 pm

3 stops33h 58m

Ko Samui

Sun 3/22

7:55 am-10:31 pm

3 stops26h 36m

$1,944

HoustonKo Samui

IAH - USM

IAHUSM

Houston George Bush Intcntl

Fri 1/16

7:10 pm-4:40 pm

2 stops32h 30m

Ko Samui

Fri 1/23

8:15 am-4:20 pm

2 stops45h 05m

$4,001

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Houston to Ko Samui

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Delays

What is the cheapest day to depart on your flight to Ko Samui?

Our data shows that Tuesday is the least expensive day to fly to Ko Samui. Tickets to fly out on this day can be as low as $158. Flights from Houston to Ko Samui on a Sunday will generally be more expensive and average around $478. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Ko Samui?

Our data shows that the cheapest Houston to Ko Samui flights are usually those with departure times at noon. Our users have found flights to Ko Samui at noon for as low as $195. In the morning is when there is more demand to fly to Ko Samui, so prices are often more expensive at around $387 per ticket.

Cheap Houston to Ko Samui flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston to Ko Samui

Fastest flight time	27h 50m
Direct flights	None

The fastest flight from Houston to Ko Samui takes 27h 50m

There are no direct flights from Houston to Ko Samui. There are no popular flight routes from Houston to Ko Samui.

Search flight deals

How far is Houston to Ko Samui by plane?
The distance between Houston and Ko Samui is about 9528.9 mi. Typically, this will take 27h 50m by plane in normal conditions.
When did momondo last update prices for flights from Houston to Ko Samui Airport?
Prices for flights from Houston to Ko Samui Airport are updated daily.
How old do you have to be to fly from Houston to Ko Samui Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston to Ko Samui Airport.
What documentation or ID do you need to fly to Ko Samui Airport?
The travel and health documents you'll need for your trip to Ko Samui Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ko Samui Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Ko Tao

Ko Pha Ngan

Khanom

Why use momondo?

Why should I use momondo to find a flight deal from Houston to Ko Samui?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Houston to Ko Samui. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Houston to Ko Samui with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Houston to Ko Samui flights to just show those with flexible booking policies.

How can momondo help me find flights from Houston to Ko Samui?

Once you have performed a search for Houston to Ko Samui flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Houston to Ko Samui right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Ko Samui from Houston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.