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Cheap flights from Colorado to Siem Reap from $767

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Siem Reap departing on 5/8. 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 Colorado to Siem Reap

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:20 am - 8:45 am
DEN
-
SAI
36h 25m
3 stops
Multiple Airlines Logo
12:55 pm - 10:02 am
SAI
-
DEN
34h 07m
3 stops
$1,369Multiple Airlines
Wed, May 6 - Thu, Jun 11
Multiple Airlines Logo
6:00 am - 9:30 pm
DEN
-
SAI
50h 30m
3 stops
Multiple Airlines Logo
11:50 pm - 10:45 pm
SAI
-
DEN
35h 55m
3 stops
$1,493Multiple Airlines
Sun, May 31 - Tue, Jun 30
Multiple Airlines Logo
7:00 am - 5:50 pm
DEN
-
SAI
45h 50m
3 stops
Multiple Airlines Logo
7:30 pm - 12:40 am
SAI
-
DEN
42h 10m
3 stops
$1,513Multiple Airlines
Sun, May 10 - Fri, Jun 12
Multiple Airlines Logo
9:02 pm - 6:45 pm
DEN
-
SAI
32h 43m
3 stops
Multiple Airlines Logo
1:05 pm - 8:22 am
SAI
-
DEN
32h 17m
3 stops
$1,550Multiple Airlines
Tue, Apr 28 - Mon, Jun 8
Singapore Airlines Logo
7:47 am - 3:10 pm
DEN
-
SAI
42h 23m
2 stops
Singapore Airlines Logo
10:30 am - 7:40 pm
SAI
-
DEN
46h 10m
2 stops
$1,573Singapore Airlines
Wed, May 6 - Thu, Jun 11
Multiple Airlines Logo
5:42 pm - 12:20 pm
DEN
-
SAI
29h 38m
2 stops
Multiple Airlines Logo
10:30 am - 9:59 am
SAI
-
DEN
36h 29m
2 stops
$1,601Multiple Airlines
Tue, Apr 28 - Mon, Jun 8
Multiple Airlines Logo
7:00 am - 9:40 am
DEN
-
SAI
37h 40m
2 stops
Multiple Airlines Logo
10:30 am - 12:40 am
SAI
-
DEN
51h 10m
2 stops
$1,608Multiple Airlines
Sun, May 10 - Fri, Jun 12
Multiple Airlines Logo
9:02 pm - 6:45 pm
DEN
-
SAI
32h 43m
3 stops
Multiple Airlines Logo
10:35 pm - 2:27 pm
SAI
-
DEN
28h 52m
3 stops
$1,639Multiple Airlines
Tue, Apr 28 - Sun, May 31
Multiple Airlines Logo
7:06 pm - 3:10 pm
DEN
-
SAI
31h 04m
2 stops
Multiple Airlines Logo
10:30 am - 6:21 pm
SAI
-
DEN
44h 51m
2 stops
$1,673Multiple Airlines
Wed, May 6 - Thu, Jun 11
Multiple Airlines Logo
8:11 pm - 12:20 pm
DEN
-
SAI
27h 09m
2 stops
Multiple Airlines Logo
6:05 pm - 12:22 pm
SAI
-
DEN
31h 17m
3 stops
$1,682Multiple Airlines
Tue, Apr 28 - Mon, Jun 8

Singapore Airlines flights from Colorado to Siem Reap

Our best Singapore Airlines deals on Colorado to Siem Reap flight tickets
Singapore Airlines
May 6
DEN7:47 amDenver Intl
42h 23m
2 stops
SAI3:10 pmSiem Reap–Angkor Intl
Jun 11
SAI10:30 amSiem Reap–Angkor Intl
46h 10m
2 stops
DEN7:40 pmDenver Intl
$1,573
Singapore Airlines
May 10
DEN6:00 amDenver Intl
38h 40m
2 stops
SAI9:40 amSiem Reap–Angkor Intl
Jun 12
SAI4:00 pmSiem Reap–Angkor Intl
36h 38m
2 stops
DEN3:38 pmDenver Intl
$1,749
Singapore Airlines
May 12
DEN7:45 amDenver Intl
36h 55m
2 stops
SAI9:40 amSiem Reap–Angkor Intl
Jun 16
SAI10:30 amSiem Reap–Angkor Intl
35h 05m
2 stops
DEN8:35 amDenver Intl
$1,753

momondo Fare Finder

 
Customize your flight search to find flights from Colorado to 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 April 5, 2026.
Use the filters below to find and compare flights from Colorado 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

Wed 5/6

7:20 am-8:45 am

3 stops36h 25m

Siem Reap–Angkor Intl

Thu 6/11

12:55 pm-10:02 am

3 stops34h 07m

$1,369

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Sun 5/31

6:00 am-9:30 pm

3 stops50h 30m

Siem Reap–Angkor Intl

Tue 6/30

11:50 pm-10:45 pm

3 stops35h 55m

$1,493

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Sun 5/10

7:00 am-5:50 pm

3 stops45h 50m

Siem Reap–Angkor Intl

Fri 6/12

7:30 pm-12:40 am

3 stops42h 10m

$1,513

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Tue 4/28

9:02 pm-6:45 pm

3 stops32h 43m

Siem Reap–Angkor Intl

Mon 6/8

1:05 pm-8:22 am

3 stops32h 17m

$1,550

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Wed 5/6

7:47 am-3:10 pm

2 stops42h 23m

Siem Reap–Angkor Intl

Thu 6/11

10:30 am-7:40 pm

2 stops46h 10m

$1,573

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Tue 4/28

5:42 pm-12:20 pm

2 stops29h 38m

Siem Reap–Angkor Intl

Mon 6/8

10:30 am-9:59 am

2 stops36h 29m

$1,601

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Sun 5/10

7:00 am-9:40 am

2 stops37h 40m

Siem Reap–Angkor Intl

Fri 6/12

10:30 am-12:40 am

2 stops51h 10m

$1,608

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Tue 4/28

9:02 pm-6:45 pm

3 stops32h 43m

Siem Reap–Angkor Intl

Sun 5/31

10:35 pm-2:27 pm

3 stops28h 52m

$1,639

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Wed 5/6

7:06 pm-3:10 pm

2 stops31h 04m

Siem Reap–Angkor Intl

Thu 6/11

10:30 am-6:21 pm

2 stops44h 51m

$1,673
Quickest round-trip

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Tue 4/28

8:11 pm-12:20 pm

2 stops27h 09m

Siem Reap–Angkor Intl

Mon 6/8

6:05 pm-12:22 pm

3 stops31h 17m

$1,682

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Siem Reap from

How to get the cheapest flight ticket from Colorado to Siem Reap

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Colorado to Siem Reap–Angkor Intl?

Qatar Airways and Singapore Airlines are the most popular carriers operating from Colorado to Siem Reap–Angkor Intl

Cheap Colorado to Siem Reap flight deals and tips

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

Fastest flight time

31h 04m

Direct flights

None
The fastest flight from Colorado to Siem Reap takes 31h 04m
There are no direct flights from Colorado to Siem Reap. There are no popular flight routes from Colorado to Siem Reap.
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Frequently asked questions about flying from Colorado to Siem Reap

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

    Prices for flights from Colorado to Siem Reap–Angkor Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Colorado to Siem Reap–Angkor Intl Airport?

  • How old do you have to be to fly from Colorado to Siem Reap–Angkor Intl Airport?

    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 Colorado to Siem Reap–Angkor Intl Airport.

  • What documentation or ID do you need to fly to Siem Reap–Angkor Intl Airport?

    The travel and health documents required for your trip to Siem Reap–Angkor Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Siem Reap–Angkor Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Colorado to Siem Reap

Compare and see reviews for airlines that fly from Colorado to Siem Reap with momondo
Airline
Rating
Free Cancellation
Price
Singapore AirlinesPriceFrom $835Free CancellationRating
8.2
1,488 reviews
Search Singapore Airlines flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Colorado to Siem Reap for you.

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

Flights from Colorado 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 Colorado to Siem Reap?

Once all potential Colorado 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 Colorado to Siem Reap right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Colorado to Siem Reap flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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