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Cheap flights from Houston George Bush Intcntl Airport to Siem Reap from $648

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston George Bush Intcntl Airport to Siem Reap departing on 8/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Houston George Bush Intcntl Airport to Siem Reap

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:10 pm - 9:00 am
IAH
-
SAI
47h 50m
2 stops
Multiple Airlines Logo
7:35 pm - 7:15 pm
SAI
-
IAH
35h 40m
2 stops
$1,445Multiple Airlines
Sat, Aug 1 - Sat, Aug 22
Emirates Logo
8:25 pm - 9:30 pm
IAH
-
SAI
61h 05m
3 stops
Emirates Logo
12:55 pm - 4:50 pm
SAI
-
IAH
39h 55m
2 stops
$1,805Emirates
Sat, Aug 1 - Sat, Aug 22
Multiple Airlines Logo
10:08 pm - 9:30 pm
IAH
-
SAI
59h 22m
3 stops
Multiple Airlines Logo
3:10 pm - 4:50 pm
SAI
-
IAH
37h 40m
3 stops
$2,126Multiple Airlines
Sat, Aug 1 - Sat, Aug 22
Emirates Logo
8:25 pm - 9:30 pm
IAH
-
SAI
61h 05m
3 stops
Emirates Logo
11:50 pm - 1:36 pm
SAI
-
IAH
49h 46m
3 stops
$2,496Emirates
Sat, Aug 1 - Sat, Aug 22

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Emirates flights from Houston George Bush Intcntl Airport to Region of Siem Reap

Our best Emirates deals on Houston George Bush Intcntl Airport to Region of Siem Reap flight tickets
Emirates
Aug 1
IAH8:25 pmHouston George Bush Intcntl
61h 05m
3 stops
SAI9:30 pmSiem Reap–Angkor Intl
Aug 22
SAI12:55 pmSiem Reap–Angkor Intl
39h 55m
2 stops
IAH4:50 pmHouston George Bush Intcntl
$1,805
Emirates
Aug 1
IAH8:25 pmHouston George Bush Intcntl
61h 05m
3 stops
SAI9:30 pmSiem Reap–Angkor Intl
Aug 22
SAI11:50 pmSiem Reap–Angkor Intl
49h 46m
3 stops
IAH1:36 pmHouston George Bush Intcntl
$2,496

momondo Fare Finder

 
Customize your flight search to find flights from Houston George Bush Intcntl Airport to Region of 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, momondo users made 832,500 searches. Data last updated July 2, 2026.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Sat 8/1

9:10 pm-9:00 am

2 stops47h 50m

Siem Reap–Angkor Intl

Sat 8/22

7:35 pm-7:15 pm

2 stops35h 40m

$1,445

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Sat 8/1

8:25 pm-9:30 pm

3 stops61h 05m

Siem Reap–Angkor Intl

Sat 8/22

12:55 pm-4:50 pm

2 stops39h 55m

$1,805

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Sat 8/1

10:08 pm-9:30 pm

3 stops59h 22m

Siem Reap–Angkor Intl

Sat 8/22

3:10 pm-4:50 pm

3 stops37h 40m

$2,126

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Sat 8/1

8:25 pm-9:30 pm

3 stops61h 05m

Siem Reap–Angkor Intl

Sat 8/22

11:50 pm-1:36 pm

3 stops49h 46m

$2,496
Cheapest one-way

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Mon 8/10

4:02 pm-2:50 pm

3 stops34h 48m

$648
Quickest one-way

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Mon 8/10

10:45 am-9:15 am

2 stops34h 30m

$757

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Houston George Bush Intcntl Airport to Region of Siem Reap flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston George Bush Intcntl Airport to Region of Siem Reap

Fastest flight time

29h 15m

Direct flights

None
The fastest flight from Houston George Bush Intcntl Airport to Region of Siem Reap takes 29h 15m
There are no direct flights from Houston George Bush Intcntl Airport to Region of Siem Reap. There are no popular flight routes from Houston George Bush Intcntl Airport to Region of Siem Reap.
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Frequently asked questions about flying from Houston George Bush Intcntl Airport to Siem Reap

  • When did momondo last update prices for flights from Houston George Bush Intcntl Airport to Siem Reap?

    Prices for flights from Houston George Bush Intcntl Airport to Siem Reap refresh daily.

  • How old do you have to be to fly from Houston George Bush Intcntl Airport to Siem Reap?

    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 George Bush Intcntl Airport to Siem Reap.

  • What documentation or ID do you need to fly to Siem Reap?

    The necessary travel and health documents for your Siem Reap trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Houston George Bush Intcntl Airport to Siem Reap

  • How do I get Price Alerts for flights from Houston George Bush Intcntl Airport to Region of Siem Reap?

    Search flight deals from Houston George Bush Intcntl Airport to Region of Siem Reap. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Houston George Bush Intcntl Airport to Region of Siem Reap with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

Why should I use momondo to find a flight deal from Houston to Siem Reap?

It is quick and easy to find Houston to Siem Reap flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Siem Reap that suits you.

Can I find flights from Houston to Siem Reap with flexible booking policies on momondo?

All flight searches from Houston to Siem Reap on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Houston to Siem Reap?

Once all potential Houston to Siem Reap flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Houston to Siem Reap flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Sat 8/1
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