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Cheap flights from Denver to Siem Reap from $1,218

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 8/21. 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
5:50 pm - 3:10 pm
DEN
-
SAI
32h 20m
2 stops
Singapore Airlines Logo
10:30 am - 7:30 pm
SAI
-
DEN
46h 00m
2 stops
$1,218Singapore Airlines
ven, ago 21 - lun, ago 24
Multiple Airlines Logo
9:17 pm - 1:15 pm
DEN
-
SAI
26h 58m
3 stops
Multiple Airlines Logo
7:30 pm - 2:27 pm
SAI
-
DEN
31h 57m
3 stops
$1,475Multiple Airlines
mer, apr 8 - lun, giu 8
Singapore Airlines Logo
5:42 pm - 3:10 pm
DEN
-
SAI
32h 28m
2 stops
Singapore Airlines Logo
10:30 am - 7:40 pm
SAI
-
DEN
46h 10m
2 stops
$1,497Singapore Airlines
mer, apr 8 - lun, giu 8
Singapore Airlines Logo
12:56 pm - 3:10 pm
DEN
-
SAI
37h 14m
3 stops
Singapore Airlines Logo
4:00 pm - 7:40 pm
SAI
-
DEN
40h 40m
2 stops
$1,500Singapore Airlines
mer, giu 10 - mer, giu 24
Singapore Airlines Logo
8:11 pm - 9:40 am
DEN
-
SAI
48h 29m
3 stops
Singapore Airlines Logo
4:00 pm - 11:02 pm
SAI
-
DEN
44h 02m
3 stops
$1,501Singapore Airlines
mer, apr 8 - dom, giu 7
ANA Logo
7:25 pm - 9:40 am
DEN
-
SAI
25h 15m
2 stops
ANA Logo
7:10 pm - 4:40 pm
SAI
-
DEN
34h 30m
3 stops
$1,503ANA
ven, ago 21 - lun, ago 24
Multiple Airlines Logo
9:25 pm - 6:20 pm
DEN
-
SAI
31h 55m
3 stops
Multiple Airlines Logo
7:30 pm - 2:21 pm
SAI
-
DEN
31h 51m
3 stops
$1,504Multiple Airlines
ven, ago 21 - lun, ago 24
Singapore Airlines Logo
8:11 pm - 9:40 am
DEN
-
SAI
48h 29m
3 stops
Singapore Airlines Logo
4:00 pm - 7:40 pm
SAI
-
DEN
40h 40m
2 stops
$1,519Singapore Airlines
mer, apr 8 - dom, giu 7
Singapore Airlines Logo
12:56 pm - 3:10 pm
DEN
-
SAI
37h 14m
3 stops
Singapore Airlines Logo
4:00 pm - 10:55 pm
SAI
-
DEN
43h 55m
3 stops
$1,719Singapore Airlines
mer, giu 10 - mer, giu 24
Multiple Airlines Logo
7:05 pm - 8:50 am
DEN
-
SAI
24h 45m
2 stops
Multiple Airlines Logo
7:30 pm - 5:00 pm
SAI
-
DEN
34h 30m
2 stops
$1,825Multiple Airlines
mer, apr 8 - dom, giu 7

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
Aug 21
DEN5:50 pmDenver Intl
32h 20m
2 stops
SAI3:10 pmSiem Reap–Angkor Intl
Aug 24
SAI10:30 amSiem Reap–Angkor Intl
46h 00m
2 stops
DEN7:30 pmDenver Intl
$1,218
Singapore Airlines
Apr 8
DEN5:42 pmDenver Intl
32h 28m
2 stops
SAI3:10 pmSiem Reap–Angkor Intl
Jun 8
SAI10:30 amSiem Reap–Angkor Intl
46h 10m
2 stops
DEN7:40 pmDenver Intl
$1,497
Singapore Airlines
Apr 8
DEN8:11 pmDenver Intl
48h 29m
3 stops
SAI9:40 amSiem Reap–Angkor Intl
Jun 7
SAI4:00 pmSiem Reap–Angkor Intl
44h 02m
3 stops
DEN11:02 pmDenver Intl
$1,501

British Airways flights from Denver to Region of Siem Reap

Our best British Airways deals on Denver to Region of Siem Reap flight tickets
British Airways
Apr 6
DEN6:30 pmDenver Intl
35h 15m
2 stops
SAI6:45 pmSiem Reap–Angkor Intl
Jun 7
SAI7:30 pmSiem Reap–Angkor Intl
34h 00m
2 stops
DEN4:30 pmDenver Intl
$9,554
British Airways
Apr 10
DEN6:30 pmDenver Intl
35h 15m
2 stops
SAI6:45 pmSiem Reap–Angkor Intl
Jun 10
SAI7:30 pmSiem Reap–Angkor Intl
34h 00m
2 stops
DEN4:30 pmDenver Intl
$11,954

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 marzo 15, 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

ven 8/21

5:50 pm-3:10 pm

2 stops32h 20m

Siem Reap–Angkor Intl

lun 8/24

10:30 am-7:30 pm

2 stops46h 00m

$1,218
Quickest round-trip

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

mer 4/8

9:17 pm-1:15 pm

3 stops26h 58m

Siem Reap–Angkor Intl

lun 6/8

7:30 pm-2:27 pm

3 stops31h 57m

$1,475

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

mer 4/8

5:42 pm-3:10 pm

2 stops32h 28m

Siem Reap–Angkor Intl

lun 6/8

10:30 am-7:40 pm

2 stops46h 10m

$1,497

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

mer 6/10

12:56 pm-3:10 pm

3 stops37h 14m

Siem Reap–Angkor Intl

mer 6/24

4:00 pm-7:40 pm

2 stops40h 40m

$1,500

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

mer 4/8

8:11 pm-9:40 am

3 stops48h 29m

Siem Reap–Angkor Intl

dom 6/7

4:00 pm-11:02 pm

3 stops44h 02m

$1,501

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

ven 8/21

7:25 pm-9:40 am

2 stops25h 15m

Siem Reap–Angkor Intl

lun 8/24

7:10 pm-4:40 pm

3 stops34h 30m

$1,503

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

ven 8/21

9:25 pm-6:20 pm

3 stops31h 55m

Siem Reap–Angkor Intl

lun 8/24

7:30 pm-2:21 pm

3 stops31h 51m

$1,504

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

mer 4/8

8:11 pm-9:40 am

3 stops48h 29m

Siem Reap–Angkor Intl

dom 6/7

4:00 pm-7:40 pm

2 stops40h 40m

$1,519

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

mer 6/10

12:56 pm-3:10 pm

3 stops37h 14m

Siem Reap–Angkor Intl

mer 6/24

4:00 pm-10:55 pm

3 stops43h 55m

$1,719

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

mer 4/8

7:05 pm-8:50 am

2 stops24h 45m

Siem Reap–Angkor Intl

dom 6/7

7:30 pm-5:00 pm

2 stops34h 30m

$1,825

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

32h 20m

Direct flights

None
The fastest flight from Denver to Region of Siem Reap takes 32h 20m
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 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
1,475 reviews
Search Singapore Airlines flights

  • 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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