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?

The number of operators available for flights from Denver Intl Airport to Siem Reap is 1 as of October 2026.

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.

$480 Cheap Flights from Denver to Siem Reap in 2026/27

Find the cheapest flights from Denver to Siem Reap

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 pm - 4:00 pmDEN Denver Intl-SAI Siem Reap–Angkor Intl

32h 00m2 stops Los Angeles Singapore Changi

4:50 pm - 11:09 pmSAI Siem Reap–Angkor Intl-DEN Denver Intl

44h 19m3 stops Singapore Changi Frankfurt am Main New York John F Kennedy Intl

$1,462Singapore Airlines

Mon, Feb 15 - Mon, Feb 22

6:00 pm - 4:00 pmDEN Denver Intl-SAI Siem Reap–Angkor Intl

32h 00m2 stops Los Angeles Singapore Changi

10:45 am - 6:06 pmSAI Siem Reap–Angkor Intl-DEN Denver Intl

45h 21m2 stops Singapore Changi Los Angeles

$1,487Singapore Airlines

Mon, Feb 15 - Mon, Feb 22

6:00 pm - 9:55 amDEN Denver Intl-SAI Siem Reap–Angkor Intl

49h 55m3 stops Los Angeles Tokyo Narita Singapore Changi

4:50 pm - 11:09 pmSAI Siem Reap–Angkor Intl-DEN Denver Intl

44h 19m3 stops Singapore Changi Frankfurt am Main New York John F Kennedy Intl

$1,534Singapore Airlines

Mon, Feb 15 - Mon, Feb 22

7:30 pm - 8:45 amDEN Denver Intl-SAI Siem Reap–Angkor Intl

47h 15m2 stops Istanbul Bangkok Suvarnabhumi

7:25 pm - 5:25 pmSAI Siem Reap–Angkor Intl-DEN Denver Intl

60h 00m2 stops Bangkok Suvarnabhumi Istanbul

$6,775Multiple Airlines

Mon, Jan 4 - Fri, Jan 15

7:40 am - 9:55 amDEN Denver Intl-SAI Siem Reap–Angkor Intl

36h 15m2 stops San Francisco Singapore Changi

10:45 am - 12:15 pmSAI Siem Reap–Angkor Intl-DEN Denver Intl

39h 30m2 stops Singapore Changi Tokyo Narita

$7,482United Airlines

Mon, Jan 4 - Sun, Jan 17

9:55 pm - 9:55 amDEN Denver Intl-SAI Siem Reap–Angkor Intl

46h 00m2 stops San Francisco Singapore Changi

10:45 am - 12:15 pmSAI Siem Reap–Angkor Intl-DEN Denver Intl

39h 30m2 stops Singapore Changi Tokyo Narita

$7,482United Airlines

Sun, Jan 3 - Mon, Jan 18

9:55 pm - 9:55 amDEN Denver Intl-SAI Siem Reap–Angkor Intl

46h 00m2 stops San Francisco Singapore Changi

10:45 am - 12:15 pmSAI Siem Reap–Angkor Intl-DEN Denver Intl

39h 30m2 stops Singapore Changi Tokyo Narita

$7,482United Airlines

Sun, Jan 3 - Sun, Jan 17

6:00 am - 9:55 amDEN Denver Intl-SAI Siem Reap–Angkor Intl

37h 55m2 stops San Francisco Singapore Changi

10:45 am - 12:15 pmSAI Siem Reap–Angkor Intl-DEN Denver Intl

39h 30m2 stops Singapore Changi Tokyo Narita

$7,482United Airlines

Mon, Jan 4 - Mon, Jan 18

7:40 am - 9:55 amDEN Denver Intl-SAI Siem Reap–Angkor Intl

36h 15m2 stops San Francisco Singapore Changi

10:45 am - 12:15 pmSAI Siem Reap–Angkor Intl-DEN Denver Intl

63h 30m2 stops Singapore Changi Tokyo Haneda

$7,490United Airlines

Wed, Jan 6 - Mon, Jan 18

3:53 pm - 9:55 amDEN Denver Intl-SAI Siem Reap–Angkor Intl

52h 02m2 stops San Francisco Singapore Changi

10:45 am - 12:15 pmSAI Siem Reap–Angkor Intl-DEN Denver Intl

63h 30m2 stops Singapore Changi Tokyo Haneda

$7,526United Airlines

Tue, Jan 5 - Mon, Jan 18

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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

Feb 15

DEN6:00 pmDenver Intl

32h 00m

2 stops

SAI4:00 pmSiem Reap–Angkor Intl

Feb 22

SAI4:50 pmSiem Reap–Angkor Intl

44h 19m

3 stops

DEN11:09 pmDenver Intl

$1,462

Singapore Airlines

Feb 15

DEN6:00 pmDenver Intl

32h 00m

2 stops

SAI4:00 pmSiem Reap–Angkor Intl

Feb 22

SAI10:45 amSiem Reap–Angkor Intl

45h 21m

2 stops

DEN6:06 pmDenver Intl

$1,487

Singapore Airlines

Feb 15

DEN6:00 pmDenver Intl

49h 55m

3 stops

SAI9:55 amSiem Reap–Angkor Intl

Feb 22

SAI4:50 pmSiem Reap–Angkor Intl

44h 19m

3 stops

DEN11:09 pmDenver Intl

$1,534

United Airlines flights from Denver to Region of Siem Reap

Our best United Airlines deals on Denver to Region of Siem Reap flight tickets

United Airlines

Jan 3

DEN9:55 pmDenver Intl

46h 00m

2 stops

SAI9:55 amSiem Reap–Angkor Intl

Jan 18

SAI10:45 amSiem Reap–Angkor Intl

39h 30m

2 stops

DEN12:15 pmDenver Intl

$7,482

United Airlines

Jan 6

DEN7:40 amDenver Intl

36h 15m

2 stops

SAI9:55 amSiem Reap–Angkor Intl

Jan 18

SAI10:45 amSiem Reap–Angkor Intl

63h 30m

2 stops

DEN12:15 pmDenver Intl

$7,490

United Airlines

Jan 5

DEN3:53 pmDenver Intl

52h 02m

2 stops

SAI9:55 amSiem Reap–Angkor Intl

Jan 18

SAI10:45 amSiem Reap–Angkor Intl

63h 30m

2 stops

DEN12:15 pmDenver Intl

$7,526

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Mon 2/15

6:00 pm-4:00 pm

2 stops32h 00m

Siem Reap–Angkor Intl

Mon 2/22

4:50 pm-11:09 pm

3 stops44h 19m

$1,462

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Mon 2/15

6:00 pm-4:00 pm

2 stops32h 00m

Siem Reap–Angkor Intl

Mon 2/22

10:45 am-6:06 pm

2 stops45h 21m

$1,487

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Mon 2/15

6:00 pm-9:55 am

3 stops49h 55m

Siem Reap–Angkor Intl

Mon 2/22

4:50 pm-11:09 pm

3 stops44h 19m

$1,534

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Mon 1/4

7:30 pm-8:45 am

2 stops47h 15m

Siem Reap–Angkor Intl

Fri 1/15

7:25 pm-5:25 pm

2 stops60h 00m

$6,775

Quickest round-trip

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Mon 1/4

7:40 am-9:55 am

2 stops36h 15m

Siem Reap–Angkor Intl

Sun 1/17

10:45 am-12:15 pm

2 stops39h 30m

$7,482

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Sun 1/3

9:55 pm-9:55 am

2 stops46h 00m

Siem Reap–Angkor Intl

Mon 1/18

10:45 am-12:15 pm

2 stops39h 30m

$7,482

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Sun 1/3

9:55 pm-9:55 am

2 stops46h 00m

Siem Reap–Angkor Intl

Sun 1/17

10:45 am-12:15 pm

2 stops39h 30m

$7,482

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Mon 1/4

6:00 am-9:55 am

2 stops37h 55m

Siem Reap–Angkor Intl

Mon 1/18

10:45 am-12:15 pm

2 stops39h 30m

$7,482

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Wed 1/6

7:40 am-9:55 am

2 stops36h 15m

Siem Reap–Angkor Intl

Mon 1/18

10:45 am-12:15 pm

2 stops63h 30m

$7,490

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Tue 1/5

3:53 pm-9:55 am

2 stops52h 02m

Siem Reap–Angkor Intl

Mon 1/18

10:45 am-12:15 pm

2 stops63h 30m

$7,526

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

How to get the cheapest flight ticket from Denver to Region of 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 Denver Intl to Siem Reap?

Singapore Airlines is the most popular carrier operating from Denver Intl to Siem Reap

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

Best Price Found	$480
Fastest flight time	32h 00m
Direct flights	None

The best one-way flight to Region of Siem Reap from Denver in the past 72 hours is $480. The best round-trip flight deal from Denver to Region of Siem Reap found on momondo in the last 72 hours is $1,462.

The fastest flight from Denver to Region of Siem Reap takes 32h 00m

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

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?
The number of operators available for flights from Denver Intl Airport to Siem Reap is 1 as of October 2026.
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 Airlines	PriceFrom $835	Free Cancellation	Rating 8.2 1,631 reviews		Search Singapore Airlines flights

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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Cheap flights from Denver to Siem Reap from $480

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Siem Reap departing on 1/22. 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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Singapore Airlines flights from Denver to Region of Siem Reap

Our best Singapore Airlines deals on Denver to Region of Siem Reap flight tickets

United Airlines flights from Denver to Region of Siem Reap

Our best United Airlines deals on Denver to Region of Siem Reap flight tickets

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How to get the cheapest flight ticket from Denver to Region of Siem Reap

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Cheap Denver to Region of Siem Reap flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Denver to Siem Reap

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

Why use momondo?

An easier way to manage your Region of Siem Reap trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Siem Reap

Popular cities in Siem Reap

Popular flights according to clicks in the last 7 days on momondo

Denver flight routes

According to popular flight searches on momondo this year

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List of cabin classes available on flights landing in Siem Reap. Availability may vary depending on flight origin and airline.

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