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Cheap flights from Denver to Siem Reap from $1,560

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 10/4. 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
0 bags

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Find the cheapest flights from Denver to Siem Reap

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:00 am - 9:40 am
DEN
-
SAI
36h 40m
2 stops
Multiple Airlines Logo
10:30 am - 8:30 pm
SAI
-
DEN
47h 00m
2 stops
$1,560Multiple Airlines
Sun, Oct 4 - Sat, Oct 17
Multiple Airlines Logo
12:49 pm - 9:30 pm
DEN
-
SAI
43h 41m
3 stops
Multiple Airlines Logo
11:50 pm - 11:48 pm
SAI
-
DEN
36h 58m
3 stops
$1,595Multiple Airlines
Sun, Oct 4 - Sat, Oct 17
Multiple Airlines Logo
7:00 am - 8:45 am
DEN
-
SAI
36h 45m
3 stops
Multiple Airlines Logo
1:05 pm - 8:06 pm
SAI
-
DEN
44h 01m
3 stops
$1,607Multiple Airlines
Fri, May 15 - Fri, May 29
Multiple Airlines Logo
5:45 pm - 3:10 pm
DEN
-
SAI
56h 25m
3 stops
Multiple Airlines Logo
10:30 am - 8:30 pm
SAI
-
DEN
47h 00m
2 stops
$1,642Multiple Airlines
Sun, Oct 4 - Sat, Oct 17
Multiple Airlines Logo
7:21 pm - 9:30 pm
DEN
-
SAI
61h 09m
3 stops
Multiple Airlines Logo
11:50 pm - 10:33 am
SAI
-
DEN
71h 43m
3 stops
$1,908Multiple Airlines
Wed, May 27 - Sat, Jun 13
Multiple Airlines Logo
6:02 am - 9:40 am
DEN
-
SAI
38h 38m
2 stops
Multiple Airlines Logo
10:30 am - 10:45 pm
SAI
-
DEN
49h 15m
2 stops
$2,058Multiple Airlines
Thu, Jul 9 - Thu, Jul 23
Multiple Airlines Logo
6:10 pm - 9:30 pm
DEN
-
SAI
62h 20m
3 stops
Multiple Airlines Logo
11:50 pm - 10:33 am
SAI
-
DEN
71h 43m
3 stops
$2,111Multiple Airlines
Sat, May 30 - Sat, Jun 13
Multiple Airlines Logo
7:00 am - 5:50 pm
DEN
-
SAI
45h 50m
3 stops
Multiple Airlines Logo
7:35 pm - 12:40 am
SAI
-
DEN
42h 05m
3 stops
$2,133Multiple Airlines
Mon, Jun 1 - Fri, Jun 12
Multiple Airlines Logo
7:20 am - 12:20 pm
DEN
-
SAI
40h 00m
3 stops
Multiple Airlines Logo
12:55 pm - 12:40 am
SAI
-
DEN
48h 45m
3 stops
$2,134Multiple Airlines
Tue, May 26 - Fri, Jun 12
ANA Logo
11:35 am - 5:10 pm
DEN
-
SAI
40h 35m
2 stops
ANA Logo
7:10 pm - 12:10 pm
SAI
-
DEN
30h 00m
2 stops
$2,148ANA
Fri, May 15 - Fri, May 29

Qatar Airways flights from Denver to Region of Siem Reap

Our best Qatar Airways deals on Denver to Region of Siem Reap flight tickets
Qatar Airways
May 10
DEN10:37 amDenver Intl
36h 43m
3 stops
SAI12:20 pmSiem Reap–Angkor Intl
Jun 14
SAI7:35 pmSiem Reap–Angkor Intl
41h 42m
3 stops
DEN12:17 amDenver Intl
$2,111
Qatar Airways
May 10
DEN10:37 amDenver Intl
36h 43m
3 stops
SAI12:20 pmSiem Reap–Angkor Intl
Jun 14
SAI7:35 pmSiem Reap–Angkor Intl
41h 42m
3 stops
DEN12:17 amDenver Intl
$2,144
Qatar Airways
May 31
DEN9:06 amDenver Intl
38h 14m
3 stops
SAI12:20 pmSiem Reap–Angkor Intl
Jun 12
SAI7:35 pmSiem Reap–Angkor Intl
41h 42m
3 stops
DEN12:17 amDenver Intl
$2,425

ANA flights from Denver to Region of Siem Reap

Our best ANA deals on Denver to Region of Siem Reap flight tickets
ANA
May 15
DEN11:35 amDenver Intl
40h 35m
2 stops
SAI5:10 pmSiem Reap–Angkor Intl
May 29
SAI7:10 pmSiem Reap–Angkor Intl
30h 00m
2 stops
DEN12:10 pmDenver Intl
$2,148
ANA
May 15
DEN11:35 amDenver Intl
40h 35m
2 stops
SAI5:10 pmSiem Reap–Angkor Intl
May 29
SAI7:10 pmSiem Reap–Angkor Intl
34h 25m
3 stops
DEN4:35 pmDenver Intl
$2,155
ANA
Jul 9
DEN9:43 amDenver Intl
42h 27m
3 stops
SAI5:10 pmSiem Reap–Angkor Intl
Jul 23
SAI7:10 pmSiem Reap–Angkor Intl
30h 00m
2 stops
DEN12:10 pmDenver Intl
$2,232

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 May 2, 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

Cheapest round-trip

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Sun 10/4

8:00 am-9:40 am

2 stops36h 40m

Siem Reap–Angkor Intl

Sat 10/17

10:30 am-8:30 pm

2 stops47h 00m

$1,560

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Sun 10/4

12:49 pm-9:30 pm

3 stops43h 41m

Siem Reap–Angkor Intl

Sat 10/17

11:50 pm-11:48 pm

3 stops36h 58m

$1,595

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Fri 5/15

7:00 am-8:45 am

3 stops36h 45m

Siem Reap–Angkor Intl

Fri 5/29

1:05 pm-8:06 pm

3 stops44h 01m

$1,607

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Sun 10/4

5:45 pm-3:10 pm

3 stops56h 25m

Siem Reap–Angkor Intl

Sat 10/17

10:30 am-8:30 pm

2 stops47h 00m

$1,642

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Wed 5/27

7:21 pm-9:30 pm

3 stops61h 09m

Siem Reap–Angkor Intl

Sat 6/13

11:50 pm-10:33 am

3 stops71h 43m

$1,908

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Thu 7/9

6:02 am-9:40 am

2 stops38h 38m

Siem Reap–Angkor Intl

Thu 7/23

10:30 am-10:45 pm

2 stops49h 15m

$2,058

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Sat 5/30

6:10 pm-9:30 pm

3 stops62h 20m

Siem Reap–Angkor Intl

Sat 6/13

11:50 pm-10:33 am

3 stops71h 43m

$2,111

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Mon 6/1

7:00 am-5:50 pm

3 stops45h 50m

Siem Reap–Angkor Intl

Fri 6/12

7:35 pm-12:40 am

3 stops42h 05m

$2,133

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Tue 5/26

7:20 am-12:20 pm

3 stops40h 00m

Siem Reap–Angkor Intl

Fri 6/12

12:55 pm-12:40 am

3 stops48h 45m

$2,134
Quickest round-trip

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Fri 5/15

11:35 am-5:10 pm

2 stops40h 35m

Siem Reap–Angkor Intl

Fri 5/29

7:10 pm-12:10 pm

2 stops30h 00m

$2,148

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

27h 30m

Direct flights

None
The fastest flight from Denver to Region of Siem Reap takes 27h 30m
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.
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Frequently asked questions about flying from Denver to Siem Reap

  • 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 many operators does momondo search for flights from Denver Intl Airport to Siem Reap?

  • 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.

Best airlines flying from Denver to Region of Siem Reap

Compare and see reviews for airlines that fly from Denver to Region of Siem Reap with momondo
Airline
Rating
Free Cancellation
Price
Singapore AirlinesPriceFrom $835Free CancellationRating
8.2
1,506 reviews
Search Singapore Airlines flights

Frequently asked questions about flying from Denver to Siem Reap

  • 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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