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Cheap flights from Houston to Siem Reap from $1,409

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Houston to Siem Reap departing on 9/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Houston to Siem Reap

Cheap round-trip flights

Enter your travel dates to find the best prices.
Emirates Logo
7:35 pm - 9:30 pm
IAH
-
SAI
37h 55m
2 stops
Emirates Logo
11:50 pm - 4:50 pm
SAI
-
IAH
53h 00m
2 stops
$1,409Emirates
Tue, Sep 1 - Tue, Sep 29
Emirates Logo
3:34 pm - 9:30 pm
IAH
-
SAI
41h 56m
3 stops
Emirates Logo
11:50 pm - 4:50 pm
SAI
-
IAH
53h 00m
2 stops
$1,567Emirates
Tue, Sep 1 - Tue, Sep 29
Multiple Airlines Logo
7:25 am - 5:10 pm
IAH
-
SAI
45h 45m
3 stops
Multiple Airlines Logo
6:05 pm - 2:56 pm
SAI
-
IAH
32h 51m
3 stops
$1,670Multiple Airlines
Tue, Sep 1 - Tue, Sep 29
Multiple Airlines Logo
4:45 pm - 9:00 am
IAH
-
SAI
28h 15m
2 stops
Multiple Airlines Logo
7:25 pm - 3:20 pm
SAI
-
IAH
32h 55m
2 stops
$6,411Multiple Airlines
Wed, Sep 2 - Sun, Nov 22
Multiple Airlines Logo
6:15 pm - 9:00 am
IAH
-
SAI
26h 45m
2 stops
Multiple Airlines Logo
7:25 pm - 3:20 pm
SAI
-
IAH
32h 55m
2 stops
$6,747Multiple Airlines
Tue, Sep 1 - Sun, Nov 22
Multiple Airlines Logo
1:10 am - 1:15 pm
IAH
-
SAI
24h 05m
2 stops
Multiple Airlines Logo
10:00 am - 8:50 pm
SAI
-
IAH
23h 50m
2 stops
$7,009Multiple Airlines
Fri, Sep 11 - Mon, Nov 30
Qatar Airways Logo
1:27 pm - 6:55 pm
IAH
-
SAI
41h 28m
3 stops
Qatar Airways Logo
7:25 pm - 3:20 pm
SAI
-
IAH
32h 55m
2 stops
$8,397Qatar Airways
Wed, Sep 2 - Sun, Nov 22
Multiple Airlines Logo
4:45 pm - 6:20 pm
IAH
-
SAI
37h 35m
3 stops
Multiple Airlines Logo
7:25 pm - 3:20 pm
SAI
-
IAH
32h 55m
2 stops
$9,215Multiple Airlines
Tue, Sep 1 - Sun, Nov 22
Multiple Airlines Logo
11:35 am - 8:45 am
IAH
-
SAI
33h 10m
2 stops
Multiple Airlines Logo
5:55 pm - 5:18 pm
SAI
-
IAH
36h 23m
3 stops
$15,805Multiple Airlines
Sat, Sep 12 - Mon, Nov 30

Emirates flights from Houston to Region of Siem Reap

Our best Emirates deals on Houston to Region of Siem Reap flight tickets
Emirates
Sep 1
IAH7:35 pmHouston George Bush Intcntl
37h 55m
2 stops
SAI9:30 pmSiem Reap–Angkor Intl
Sep 29
SAI11:50 pmSiem Reap–Angkor Intl
53h 00m
2 stops
IAH4:50 pmHouston George Bush Intcntl
$1,409
Emirates
Sep 1
IAH3:34 pmHouston George Bush Intcntl
41h 56m
3 stops
SAI9:30 pmSiem Reap–Angkor Intl
Sep 29
SAI11:50 pmSiem Reap–Angkor Intl
53h 00m
2 stops
IAH4:50 pmHouston George Bush Intcntl
$1,567

momondo Fare Finder

 
Customize your flight search to find flights from Houston 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 May 22, 2026.
Use the filters below to find and compare flights from Houston to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Tue 9/1

7:35 pm-9:30 pm

2 stops37h 55m

Siem Reap–Angkor Intl

Tue 9/29

11:50 pm-4:50 pm

2 stops53h 00m

$1,409

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Tue 9/1

3:34 pm-9:30 pm

3 stops41h 56m

Siem Reap–Angkor Intl

Tue 9/29

11:50 pm-4:50 pm

2 stops53h 00m

$1,567

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Tue 9/1

7:25 am-5:10 pm

3 stops45h 45m

Siem Reap–Angkor Intl

Tue 9/29

6:05 pm-2:56 pm

3 stops32h 51m

$1,670

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Wed 9/2

4:45 pm-9:00 am

2 stops28h 15m

Siem Reap–Angkor Intl

Sun 11/22

7:25 pm-3:20 pm

2 stops32h 55m

$6,411

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Tue 9/1

6:15 pm-9:00 am

2 stops26h 45m

Siem Reap–Angkor Intl

Sun 11/22

7:25 pm-3:20 pm

2 stops32h 55m

$6,747
Quickest round-trip

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Fri 9/11

1:10 am-1:15 pm

2 stops24h 05m

Siem Reap–Angkor Intl

Mon 11/30

10:00 am-8:50 pm

2 stops23h 50m

$7,009

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Wed 9/2

1:27 pm-6:55 pm

3 stops41h 28m

Siem Reap–Angkor Intl

Sun 11/22

7:25 pm-3:20 pm

2 stops32h 55m

$8,397

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Tue 9/1

4:45 pm-6:20 pm

3 stops37h 35m

Siem Reap–Angkor Intl

Sun 11/22

7:25 pm-3:20 pm

2 stops32h 55m

$9,215

HoustonSiem Reap

IAH - SAI

IAHSAI

Houston George Bush Intcntl

Sat 9/12

11:35 am-8:45 am

2 stops33h 10m

Siem Reap–Angkor Intl

Mon 11/30

5:55 pm-5:18 pm

3 stops36h 23m

$15,805

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Houston to Region of Siem Reap flight deals and tips

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

Fastest flight time

37h 55m

Direct flights

None
The fastest flight from Houston to Region of Siem Reap takes 37h 55m
There are no direct flights from Houston to Region of Siem Reap. There are no popular flight routes from Houston to Region of Siem Reap.
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Frequently asked questions about flying from Houston to Siem Reap

  • When did momondo last update prices for flights from Houston to Siem Reap?

    Prices for flights from Houston to Siem Reap were last updated today.

  • How old do you have to be to fly from Houston to Siem Reap?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston to Siem Reap.

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

    The travel and health documents you'll need for your trip to Siem Reap may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Siem Reap. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Houston to Siem Reap

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

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Houston from Region of Siem Reap. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

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

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Houston to Siem Reap. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to Siem Reap from Houston on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Houston to Siem Reap flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Houston to Siem Reap now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Siem Reap and let you know when they change.

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