IAH - USM

$629 Find Cheap Flights from Houston to Ko Samui - Compare and Save

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Everything you should know

Cheapest round-trip
$1,128
Typical prices: $1,271-$1,750
Multiple Airlines
Sun 11/25Sun 12/2
IAH - USM • 2 stops
Cheapest one-way
$629
Typical prices: $662-$730
Multiple Airlines
Thu 11/22
IAH - USM • 3 stops
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Flight Deals

Cheap Flights from Houston to Ko Samui (IAH-USM)

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

Recent round-trip flight deals from Houston to Ko Samui

Wed, Nov 25 - Wed, Dec 2
Multiple Airlines Logo
3:17 pm - 7:35 pmIAH  Houston George Bush Intcntl-USM Ko Samui
39h 18m2 stops Los Angeles Hong Kong Intl
Multiple Airlines Logo
11:40 am - 7:41 pmUSM  Ko Samui-IAH Houston George Bush Intcntl
45h 01m2 stops Hong Kong Intl Los Angeles
$1,128Multiple Airlines
Thu, Feb 11 - Thu, Feb 18
Multiple Airlines Logo
9:22 am - 7:35 pmIAH  Houston George Bush Intcntl-USM Ko Samui
45h 13m2 stops Chicago O'Hare Intl Hong Kong Intl
Multiple Airlines Logo
11:40 am - 8:30 pmUSM  Ko Samui-IAH Houston George Bush Intcntl
45h 50m2 stops Hong Kong Intl Los Angeles
$1,319Multiple Airlines
Wed, Nov 25 - Wed, Dec 2
Multiple Airlines Logo
12:22 pm - 8:00 amIAH  Houston George Bush Intcntl-USM Ko Samui
30h 38m2 stops Los Angeles Singapore Changi
Multiple Airlines Logo
2:05 pm - 12:02 pmUSM  Ko Samui-IAH Houston George Bush Intcntl
34h 57m3 stops Bangkok Suvarnabhumi Hong Kong Intl Los Angeles
$1,553Multiple Airlines
Thu, Feb 11 - Thu, Feb 18
EVA Air Logo
6:00 am - 8:10 amIAH  Houston George Bush Intcntl-USM Ko Samui
37h 10m3 stops Los Angeles Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
EVA Air Logo
9:10 pm - 8:50 pmUSM  Ko Samui-IAH Houston George Bush Intcntl
36h 40m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,608EVA Air
Wed, Nov 25 - Wed, Dec 2
Multiple Airlines Logo
11:55 am - 8:00 amIAH  Houston George Bush Intcntl-USM Ko Samui
31h 05m3 stops Toronto Pearson Intl Vienna Intl Singapore Changi
Multiple Airlines Logo
2:25 pm - 12:02 pmUSM  Ko Samui-IAH Houston George Bush Intcntl
34h 37m3 stops Bangkok Suvarnabhumi Hong Kong Intl Los Angeles
$1,836Multiple Airlines
Thu, Feb 11 - Thu, Feb 18
Multiple Airlines Logo
5:55 pm - 8:25 pmIAH  Houston George Bush Intcntl-USM Ko Samui
37h 30m3 stops Doha Hamad Intl Kuala Lumpur Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
4:30 pm - 3:15 pmUSM  Ko Samui-IAH Houston George Bush Intcntl
35h 45m3 stops Bangkok Suvarnabhumi Kuala Lumpur Intl Doha Hamad Intl
$2,213Multiple Airlines
Thu, Feb 11 - Thu, Feb 18
Multiple Airlines Logo
7:00 am - 8:10 amIAH  Houston George Bush Intcntl-USM Ko Samui
36h 10m3 stops Seattle/Tacoma Intl Tokyo Narita Bangkok Suvarnabhumi
Multiple Airlines Logo
10:00 am - 8:50 pmUSM  Ko Samui-IAH Houston George Bush Intcntl
23h 50m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$2,696Multiple Airlines
Wed, Dec 23 - Tue, Jan 5
British Airways Logo
3:50 pm - 6:15 pmIAH  Houston George Bush Intcntl-USM Ko Samui
37h 25m2 stops London Heathrow Singapore Changi
British Airways Logo
4:25 pm - 2:05 pmUSM  Ko Samui-IAH Houston George Bush Intcntl
34h 40m2 stops Singapore Changi London Heathrow
$2,748British Airways
Wed, Dec 23 - Wed, Dec 30
Qatar Airways Logo
5:35 pm - 4:15 pmIAH  Houston George Bush Intcntl-USM Ko Samui
33h 40m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Qatar Airways Logo
5:40 pm - 3:15 pmUSM  Ko Samui-IAH Houston George Bush Intcntl
34h 35m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
$2,749Qatar Airways
Tue, Dec 22 - Tue, Jan 5
British Airways Logo
3:50 pm - 6:15 pmIAH  Houston George Bush Intcntl-USM Ko Samui
61h 25m2 stops London Heathrow Singapore Changi
British Airways Logo
4:25 pm - 2:05 pmUSM  Ko Samui-IAH Houston George Bush Intcntl
34h 40m2 stops Singapore Changi London Heathrow
$2,795British Airways
Booking Insights

Price, demand and travel trends for Houston George Bush Intcntl Airport to Ko Samui flights

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

Which airline is the cheapest to fly from Houston George Bush Intcntl Airport to Ko Samui?

EVA Air ($1,608) and British Airways ($2,748) are the cheapest airlines to fly round-trip from Houston George Bush Intcntl Airport to Ko Samui according to KAYAK data over the last 5 days.

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Expert advice

Expert advice for your flight from Houston to Ko Samui

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Delta and United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

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Key details for Houston George Bush Intcntl Airport to Ko Samui flights

Cheapest flight

$629
One-way flight 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 round-trip price

Your Houston George Bush Intcntl Airport to Ko Samui flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Houston George Bush Intcntl Airport to Ko Samui?

    Only Economy Class is available on flights from Houston George Bush Intcntl Airport to Ko Samui.

  • Do I need a passport to fly from Houston George Bush Intcntl Airport 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.

  • How are flight prices from Houston George Bush Intcntl Airport to Ko Samui looking right now?

    One-way fares from Houston George Bush Intcntl Airport to Ko Samui are currently in line with typical prices for this route. Average one-way fares are about $662.

  • What car rental options are available at Ko Samui Airport (USM)?

    Ko Samui Airport (USM) hosts 5 major car rental companies, with daily rates averaging $29 for economy cars. Top options include:

    • Drive Car Rental
    • Alamo
    • Sixt
    • Enterprise Rent-A-Car
    • Thai Rent

  • Which airports can I use when flying from Houston George Bush Intcntl Airport to Ko Samui?

    Flights from Houston George Bush Intcntl Airport to Ko Samui usually depart from Houston George Bush Intcntl (IAH) and arrive at Ko Samui (USM).

  • Can I save money by using flexible dates for flights from Houston George Bush Intcntl Airport to Ko Samui?

    Yes. Flexible dates can save you up to 28% on flights from Houston George Bush Intcntl Airport to Ko Samui. Saturday is the cheapest departure day at $1,271 round-trip on average, while Wednesday is the most expensive at $1,750, a difference of $479.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • What is the time difference between Houston George Bush Intcntl Airport and Ko Samui?

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

  • What popular places can I visit in Ko Samui?

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

Your guide to booking Houston George Bush Intcntl Airport to Ko Samui flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Saturday departure and avoid flying on Wednesday. On this route, Saturday flights average $1,271, about $479 less than Wednesday fares (27% savings) 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
    • Melia Koh Samui
    • Amari Koh Samui

More options for your flight from Houston to Ko Samui

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

Car rentals in Ko Samui
Hotels in Ko Samui
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