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Cheap flights from Denver to Siem Reap from $1,445

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Siem Reap departing on 2/15. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Singapore Airlines Logo
1:27 pm - 3:55 pm
DEN
-
SAI
36h 28m
2 stops
Singapore Airlines Logo
4:45 pm - 8:47 am
SAI
-
DEN
30h 02m
2 stops
$1,445Singapore Airlines
Sun, Feb 15 - Tue, Feb 24
Multiple Airlines Logo
7:49 am - 5:30 pm
DEN
-
SAI
43h 41m
2 stops
Multiple Airlines Logo
1:25 pm - 10:07 am
SAI
-
DEN
34h 42m
2 stops
$1,741Multiple Airlines
Fri, Feb 13 - Fri, Feb 20
China Eastern Logo
5:45 am - 9:00 pm
DEN
-
SAI
49h 15m
3 stops
China Eastern Logo
10:00 pm - 6:08 pm
SAI
-
DEN
58h 08m
3 stops
$1,808China Eastern
Sun, Feb 15 - Tue, Feb 24
Singapore Airlines Logo
5:33 pm - 3:55 pm
DEN
-
SAI
32h 22m
2 stops
Singapore Airlines Logo
4:45 pm - 10:59 pm
SAI
-
DEN
44h 14m
3 stops
$1,829Singapore Airlines
Sun, Feb 15 - Tue, Feb 24
Multiple Airlines Logo
7:49 am - 5:30 pm
DEN
-
SAI
43h 41m
2 stops
Multiple Airlines Logo
1:25 pm - 8:26 am
SAI
-
DEN
33h 01m
2 stops
$1,918Multiple Airlines
Fri, Feb 13 - Sat, Feb 21
Multiple Airlines Logo
7:49 am - 5:30 pm
DEN
-
SAI
43h 41m
2 stops
Multiple Airlines Logo
6:30 pm - 4:36 pm
SAI
-
DEN
36h 06m
3 stops
$2,175Multiple Airlines
Fri, Feb 13 - Fri, Feb 20
Multiple Airlines Logo
4:03 pm - 8:30 pm
DEN
-
SAI
86h 27m
3 stops
Multiple Airlines Logo
1:25 pm - 10:07 am
SAI
-
DEN
34h 42m
2 stops
$2,649Multiple Airlines
Fri, Feb 13 - Sat, Feb 21
Singapore Airlines Logo
10:41 am - 3:55 pm
DEN
-
SAI
39h 14m
3 stops
Singapore Airlines Logo
4:45 pm - 10:59 pm
SAI
-
DEN
44h 14m
3 stops
$2,740Singapore Airlines
Fri, Feb 13 - Fri, Feb 20
Singapore Airlines Logo
10:41 am - 3:55 pm
DEN
-
SAI
39h 14m
3 stops
Singapore Airlines Logo
4:45 pm - 10:59 pm
SAI
-
DEN
44h 14m
3 stops
$3,045Singapore Airlines
Fri, Feb 13 - Sat, Feb 21
Multiple Airlines Logo
7:05 pm - 12:15 pm
DEN
-
SAI
28h 10m
2 stops
Multiple Airlines Logo
9:30 pm - 12:10 pm
SAI
-
DEN
28h 40m
2 stops
$5,017Multiple Airlines
Mon, May 4 - Sun, Nov 1

Singapore Airlines flights from Denver to Region of Siem Reap

Our best Singapore Airlines deals on Denver to Region of Siem Reap flight tickets
Singapore Airlines
Apr 8
DEN8:11 pmDenver Intl
29h 59m
2 stops
SAI3:10 pmSiem Reap–Angkor Intl
Jun 17
SAI4:00 pmSiem Reap–Angkor Intl
40h 30m
2 stops
DEN7:30 pmDenver Intl
$1,135
Singapore Airlines
Apr 8
DEN8:11 pmDenver Intl
48h 29m
3 stops
SAI9:40 amSiem Reap–Angkor Intl
Jun 17
SAI4:00 pmSiem Reap–Angkor Intl
40h 30m
2 stops
DEN7:30 pmDenver Intl
$1,295
Singapore Airlines
Feb 15
DEN1:27 pmDenver Intl
36h 28m
2 stops
SAI3:55 pmSiem Reap–Angkor Intl
Feb 24
SAI4:45 pmSiem Reap–Angkor Intl
30h 02m
2 stops
DEN8:47 amDenver Intl
$1,445

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Sun 2/15

1:27 pm-3:55 pm

2 stops36h 28m

Siem Reap–Angkor Intl

Tue 2/24

4:45 pm-8:47 am

2 stops30h 02m

$1,445

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Fri 2/13

7:49 am-5:30 pm

2 stops43h 41m

Siem Reap–Angkor Intl

Fri 2/20

1:25 pm-10:07 am

2 stops34h 42m

$1,741

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Sun 2/15

5:45 am-9:00 pm

3 stops49h 15m

Siem Reap–Angkor Intl

Tue 2/24

10:00 pm-6:08 pm

3 stops58h 08m

$1,808

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Sun 2/15

5:33 pm-3:55 pm

2 stops32h 22m

Siem Reap–Angkor Intl

Tue 2/24

4:45 pm-10:59 pm

3 stops44h 14m

$1,829

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Fri 2/13

7:49 am-5:30 pm

2 stops43h 41m

Siem Reap–Angkor Intl

Sat 2/21

1:25 pm-8:26 am

2 stops33h 01m

$1,918

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Fri 2/13

7:49 am-5:30 pm

2 stops43h 41m

Siem Reap–Angkor Intl

Fri 2/20

6:30 pm-4:36 pm

3 stops36h 06m

$2,175

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Fri 2/13

4:03 pm-8:30 pm

3 stops86h 27m

Siem Reap–Angkor Intl

Sat 2/21

1:25 pm-10:07 am

2 stops34h 42m

$2,649

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Fri 2/13

10:41 am-3:55 pm

3 stops39h 14m

Siem Reap–Angkor Intl

Fri 2/20

4:45 pm-10:59 pm

3 stops44h 14m

$2,740

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Fri 2/13

10:41 am-3:55 pm

3 stops39h 14m

Siem Reap–Angkor Intl

Sat 2/21

4:45 pm-10:59 pm

3 stops44h 14m

$3,045

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Mon 5/4

7:05 pm-12:15 pm

2 stops28h 10m

Siem Reap–Angkor Intl

Sun 11/1

9:30 pm-12:10 pm

2 stops28h 40m

$5,017

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Denver to Region of Siem Reap flight deals and tips

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

Fastest flight time

29h 59m

Direct flights

None
The fastest flight from Denver to Region of Siem Reap takes 29h 59m
There are no direct flights from Denver to Region of Siem Reap. There are no popular flight routes from Denver to Region of Siem Reap.
Search flight deals

  • When did momondo last update prices for flights from Denver Intl Airport to Siem Reap?

    Prices for flights from Denver Intl Airport to Siem Reap refresh daily.

  • How old do you have to be to fly from Denver Intl Airport to Siem Reap?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl 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.

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

    Confirm your travel details to search for the latest offers for flights from Denver to Region of Siem Reap. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Denver 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 Denver to Siem Reap?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Siem Reap from Denver.

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

Flights from Denver to Siem Reap with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Denver to Siem Reap.

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

If you are simply researching potential flights to Siem Reap, momondo offers a useful price alert feature which will track prices for flights to Siem Reap from Denver and alert you when they change.

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Find better results for your trip to Siem Reap

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