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Siem Reap

$653+ Cheap flights from Houston to Siem Reap

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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SAI
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap flight deals from Houston to Siem Reap

Cheapest flights from Houston to Siem Reap
Explore the most affordable flight options available from Houston to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This oojo deal was found by Cheapflights users on 1/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/269:05 pm
IAH
-
SAI
2 stops33h 40m
Multiple Airlines
Tue 6/167:25 pm
SAI
-
IAH
2 stops35h 45m
Multiple Airlines
Deal found 1/24$1,789
This FlightHub deal was found by Cheapflights users on 1/24. 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.
Mon 4/61:00 am
IAH
-
SAI
2 stops29h 45m
Multiple Airlines
Tue 4/219:40 am
SAI
-
IAH
2 stops24h 35m
Multiple Airlines
Deal found 1/24$2,393
This oojo deal was found by Cheapflights users on 1/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/71:00 am
IAH
-
SAI
3 stops27h 25m
Multiple Airlines
Tue 4/217:10 pm
SAI
-
IAH
2 stops39h 05m
Multiple Airlines
Deal found 1/24$2,410
This oojo deal was found by Cheapflights users on 1/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/262:37 pm
IAH
-
SAI
3 stops42h 53m
Emirates
Tue 6/1611:50 pm
SAI
-
IAH
3 stops33h 46m
Emirates
Deal found 1/24$2,776
This FlightHub deal was found by Cheapflights users on 1/24. 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 4/76:15 pm
IAH
-
SAI
2 stops36h 30m
Qatar Airways
Wed 4/227:25 pm
SAI
-
IAH
2 stops33h 15m
Qatar Airways
Deal found 1/24$5,928
This oojo deal was found by Cheapflights users on 1/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/88:16 pm
IAH
-
SAI
3 stops61h 14m
Emirates
Tue 4/2111:50 pm
SAI
-
IAH
3 stops53h 07m
Emirates
Deal found 1/24$10,088

Find flight deals from Houston to Siem Reap

Keep the following information in mind while searching for Houston to Siem Reap flight deals. Data was last updated January 26, 2026.

Round-trip from

$1,789
(oojo)

One-way from

$653
(Kiwi.com)
From Houston to Siem Reap
Search Deals
One-way flight from Houston to Siem Reap
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Houston to Siem Reap 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 January 26, 2026.
Use the filters below to find and compare flights from Houston to Siem Reap that are best for you.

Fly from

Houston

Fly to

Siem Reap

Route

Depart

Return

Price

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Tue 5/26

9:05 pm-6:45 pm

2 stops33h 40m

Siem Reap–Angkor Intl

Tue 6/16

7:25 pm-7:10 pm

2 stops35h 45m

$1,789

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Tue 4/7

1:00 am-6:45 pm

2 stops29h 45m

Siem Reap–Angkor Intl

Wed 4/22

9:40 am-10:15 pm

2 stops24h 35m

$2,393

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Wed 4/8

1:00 am-6:45 pm

2 stops29h 45m

Siem Reap–Angkor Intl

Tue 4/21

9:40 am-10:15 pm

2 stops24h 35m

$2,393

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Mon 4/6

1:00 am-6:45 pm

2 stops29h 45m

Siem Reap–Angkor Intl

Wed 4/22

9:40 am-10:15 pm

2 stops24h 35m

$2,393

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Wed 4/8

1:00 am-6:45 pm

2 stops29h 45m

Siem Reap–Angkor Intl

Wed 4/22

9:40 am-10:15 pm

2 stops24h 35m

$2,393

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Tue 4/7

1:00 am-6:45 pm

2 stops29h 45m

Siem Reap–Angkor Intl

Tue 4/21

9:40 am-10:15 pm

2 stops24h 35m

$2,393

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Tue 5/26

2:37 pm-9:30 pm

3 stops42h 53m

Siem Reap–Angkor Intl

Tue 6/16

11:50 pm-9:36 pm

3 stops33h 46m

$2,776

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Tue 4/7

6:15 pm-6:45 pm

2 stops36h 30m

Siem Reap–Angkor Intl

Wed 4/22

7:25 pm-4:40 pm

2 stops33h 15m

$5,928

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Tue 4/7

6:15 pm-12:15 pm

2 stops30h 00m

Siem Reap–Angkor Intl

Tue 4/21

12:55 pm-4:40 pm

2 stops39h 45m

$5,928

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Wed 4/8

6:15 pm-6:45 pm

2 stops36h 30m

Siem Reap–Angkor Intl

Wed 4/22

7:25 pm-4:40 pm

2 stops33h 15m

$5,928

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Showing 1-10 of 14 results
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Best time to book a flight from Houston to Siem Reap

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

Cheapflights Insights

Everything you need to know about your flight from Houston to Siem Reap
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Houston to Siem Reap. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Houston to Siem Reap that include hotel bookings?

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

  • How can I find direct flights from Houston to Siem Reap?

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

  • Can I find deals for business class flights from Houston to Siem Reap?

    Yes. Cheapflights offers flight deals from Houston to Siem Reap by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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