In terms of precipitation, rainfall in Region of Siem Reap ranges from 0.0 - 10.2 inches per month. September is typically the wettest month, when rainfall can reach 10.2 in. January is typically the driest time to visit Region of Siem Reap when rainfall is around 0.0 in.

If weather is an important factor for your trip to Region of Siem Reap, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 75.2 F).

What is the cheapest time of day to fly from IAH to SI?

When flying from Houston George Bush Intcntl Airport to Region of Siem Reap, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from George Bush Intcntl to Siem Reap that include hotel bookings?

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

How can I find direct flights from George Bush Intcntl to Siem Reap?

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

Can I find deals for business class flights from George Bush Intcntl to Siem Reap?

Yes. Cheapflights offers flight deals from George Bush Intcntl 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.

$1,225+ Flights from Houston George Bush Intcntl Airport to Siem Reap

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Cheap flight deals from George Bush Intcntl to Siem Reap

Cheapest flights from George Bush Intcntl to Siem Reap
Explore the most affordable flight options available from George Bush Intcntl to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janeiro 28, 2026.

sex 9/252:30 pm

IAH

SAI

2 stops30h 30m

Multiple Airlines

dom 10/117:25 pm

SAI

IAH

2 stops35h 45m

Multiple Airlines

Deal found 1/26

$1,225

qua 5/274:45 pm

IAH

SAI

2 stops31h 30m

Multiple Airlines

ter 6/167:25 pm

SAI

IAH

2 stops32h 19m

Multiple Airlines

Deal found 1/27

$1,726

Best flights from George Bush Intcntl to Siem Reap
Discover carefully curated flight deals from George Bush Intcntl to Siem Reap that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated janeiro 28, 2026.

qua 5/274:45 pm

IAH

SAI

2 stops31h 30m

Multiple Airlines

ter 6/167:25 pm

SAI

IAH

2 stops32h 19m

Multiple Airlines

Deal found 1/27

$1,726

One-way flights from George Bush Intcntl to Siem Reap
Search for one-way flight options from George Bush Intcntl to Siem Reap. Find affordable one-way fares based on user searches. Data last updated janeiro 28, 2026.

qua 4/811:35 am

IAH

SAI

2 stops33h 25m

Multiple Airlines

Deal found 1/25

$3,092

ter 4/711:35 am

IAH

SAI

2 stops33h 25m

Multiple Airlines

Deal found 1/25

$3,159

qui 4/97:00 am

IAH

SAI

3 stops44h 10m

Multiple Airlines

Deal found 1/25

$3,178

Find flight deals from George Bush Intcntl to Siem Reap

Round-trip from	$1,726 (FlightHub)

From Houston George Bush Intcntl to Siem Reap

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HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

qua 5/27

4:45 pm-12:15 pm

2 stops31h 30m

Siem Reap–Angkor Intl

ter 6/16

7:25 pm-3:44 pm

2 stops32h 19m

$1,726

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

qua 4/8

11:35 am-9:00 am

2 stops33h 25m

$3,092

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

ter 4/7

11:35 am-9:00 am

2 stops33h 25m

$3,159

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

qui 4/9

11:35 am-9:00 am

2 stops33h 25m

$3,159

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Deals found on 1/25

Best time to book a flight from George Bush Intcntl to Siem Reap

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Related info for your journey

Can I find deals for flights from George Bush Intcntl to Siem Reap that include hotel bookings?
Yes. In addition to deals on George Bush Intcntl to Siem Reap flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from George Bush Intcntl to Siem Reap?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from George Bush Intcntl to Siem Reap.
Can I find deals for business class flights from George Bush Intcntl to Siem Reap?
Yes. Cheapflights offers flight deals from George Bush Intcntl 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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$1,225+ Cheap flights from George Bush Intcntl (IAH) to Siem Reap

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from George Bush Intcntl to Siem Reap with Cheapflights

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Cheap flight deals from George Bush Intcntl to Siem Reap

Cheapest flights from George Bush Intcntl to Siem ReapExplore the most affordable flight options available from George Bush Intcntl to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janeiro 28, 2026.

Explore the most affordable flight options available from George Bush Intcntl to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janeiro 28, 2026.

Find flight deals from George Bush Intcntl to Siem Reap

Keep the following information in mind while searching for George Bush Intcntl to Siem Reap flight deals. Data was last updated janeiro 28, 2026.

Round-trip from

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Best time to book a flight from George Bush Intcntl to Siem Reap

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Everything you need to know about your flight from Houston George Bush Intcntl Airport to Siem Reap

Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl 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 George Bush Intcntl to Siem Reap that include hotel bookings?

How can I find direct flights from George Bush Intcntl to Siem Reap?

Can I find deals for business class flights from George Bush Intcntl to Siem Reap?

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Cheapest flights from George Bush Intcntl to Siem Reap
Explore the most affordable flight options available from George Bush Intcntl to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janeiro 28, 2026.