IAH - USM

$637 Find Cheap Flights from Houston to Ko Samui - Compare and Save

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Everything you should know

Cheapest round-trip
$1,229
Typical prices: $1,271-$1,487
Multiple Airlines
Thu 10/25Thu 11/1
IAH - USM • 2 stops
Cheapest one-way
$637
Typical prices: $662-$730
Multiple Airlines
Thu 11/8
IAH - USM • 2 stops
When to travel
September
Cheapest • 18% price drop
May
Most popular
Good to know
+1
Good to know
+1
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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

Sun, Oct 25 - Sun, Nov 1
Multiple Airlines Logo
8:04 pm - 7:35 pmIAH  Houston George Bush Intcntl-USM Ko Samui
35h 31m2 stops Los Angeles Hong Kong Intl
Multiple Airlines Logo
8:20 pm - 2:38 pmUSM  Ko Samui-IAH Houston George Bush Intcntl
31h 18m2 stops Bangkok Suvarnabhumi Vancouver Intl
$1,229Multiple Airlines
Sat, Oct 24 - Sun, Nov 1
Multiple Airlines Logo
8:06 pm - 7:35 pmIAH  Houston George Bush Intcntl-USM Ko Samui
35h 29m2 stops Dallas/Fort Worth Hong Kong Intl
Multiple Airlines Logo
8:30 pm - 2:38 pmUSM  Ko Samui-IAH Houston George Bush Intcntl
31h 08m2 stops Bangkok Suvarnabhumi Vancouver Intl
$1,289Multiple Airlines
Fri, Oct 30 - Wed, Nov 4
EVA Air Logo
12:40 am - 8:10 amIAH  Houston George Bush Intcntl-USM Ko Samui
43h 30m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
EVA Air Logo
10:20 am - 8:50 pmUSM  Ko Samui-IAH Houston George Bush Intcntl
23h 30m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,374EVA Air
Tue, Sep 29 - Mon, Oct 12
EVA Air Logo
7:25 am - 8:35 amIAH  Houston George Bush Intcntl-USM Ko Samui
37h 10m3 stops Los Angeles Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
EVA Air Logo
11:45 am - 10:15 pmUSM  Ko Samui-IAH Houston George Bush Intcntl
22h 30m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,396EVA Air
Tue, Sep 29 - Mon, Oct 12
Multiple Airlines Logo
6:15 pm - 10:30 amIAH  Houston George Bush Intcntl-USM Ko Samui
28h 15m2 stops Doha Hamad Intl Phuket City
Multiple Airlines Logo
9:00 pm - 3:55 pmUSM  Ko Samui-IAH Houston George Bush Intcntl
30h 55m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
$1,405Multiple Airlines
Wed, Oct 21 - Mon, Oct 26
EVA Air Logo
1:00 am - 2:45 pmIAH  Houston George Bush Intcntl-USM Ko Samui
25h 45m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
EVA Air Logo
8:30 pm - 10:00 pmUSM  Ko Samui-IAH Houston George Bush Intcntl
37h 30m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,411EVA Air
Thu, Mar 4 - Thu, Mar 11
Multiple Airlines Logo
9:09 am - 7:35 pmIAH  Houston George Bush Intcntl-USM Ko Samui
45h 26m2 stops Chicago O'Hare Intl Hong Kong Intl
Multiple Airlines Logo
6:30 pm - 3:15 pmUSM  Ko Samui-IAH Houston George Bush Intcntl
33h 45m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
$1,421Multiple Airlines
Sat, Oct 31 - Wed, Nov 4
Japan Airlines Logo
7:34 am - 8:10 amIAH  Houston George Bush Intcntl-USM Ko Samui
36h 36m3 stops Chicago O'Hare Intl Tokyo Narita Bangkok Suvarnabhumi
Japan Airlines Logo
7:00 pm - 7:49 pmUSM  Ko Samui-IAH Houston George Bush Intcntl
37h 49m3 stops Bangkok Suvarnabhumi Tokyo Haneda Los Angeles
$1,493Japan Airlines
Sun, Oct 25 - Sun, Nov 1
EVA Air Logo
8:00 pm - 3:20 pmIAH  Houston George Bush Intcntl-USM Ko Samui
31h 20m3 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
$1,505EVA Air
Sat, Oct 24 - Sun, Nov 1
EVA Air Logo
7:25 am - 9:20 amIAH  Houston George Bush Intcntl-USM Ko Samui
37h 55m3 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
$1,513EVA Air
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 from Houston George Bush Intcntl Airport to Ko Samui with more confidence.

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

EVA Air ($1,374) and Japan Airlines ($1,493) 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

Low season

December

Cheapest flight

$637
Most popular time to fly with an average 29% increase in price.
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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?

    On the Houston George Bush Intcntl Airport to Ko Samui route, being flexible with your departure day can save you up to 28%. Saturday is the cheapest day at $1,271 round-trip on average, while Wednesday is the most expensive at $1,750: a $479 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 Lamai Beach, Chaweng Beach and Fishermans Village. These are among the most viewed places in Ko Samui on KAYAK.

  • 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.

  • Have flight prices from Houston George Bush Intcntl Airport to Ko Samui changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $1,229 to $2,354. That means the highest observed fare was about 91% higher than the lowest one.

  • 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 $682.

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

    Ko Samui Airport (USM) hosts 5 major car rental companies, with daily rates starting from around $14 for economy cars. Top options include:
    • Drive Car Rental
    • Alamo
    • Sixt
    • Enterprise Rent-A-Car
    • Hertz

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 can be flexible, aim for a Saturday departure instead of Wednesday. On this route, Saturday flights average $1,271 - about $479 less than Wednesday (27% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Houston George Bush Intcntl Airport to Ko Samui trip for September. Fares historically average $1,113 round-trip in that month - typically $637 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
    - Avani Chaweng Samui Hotel & Beach Club - Adults Only

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
Vacations in Ko Samui