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

You can take advantage of momondo’s Price Alerts by first searching for your flights to Denver from Siem Reap . Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

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

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

How does momondo find its flight prices?

We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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

Prices for flights from Denver Intl Airport to Siem Reap–Angkor Intl Airport were last updated today.

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

As of September 2026, there is 1 operator available to choose from for flights from Denver Intl Airport to Siem Reap–Angkor Intl Airport.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Denver Intl Airport to Siem Reap–Angkor Intl Airport.

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

The required travel and health documents for your Siem Reap–Angkor Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Siem Reap–Angkor Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$601 Cheap Flights from Denver to Siem Reap in 2026

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.

11:35 am - 9:55 amDEN Denver Intl-SAI Siem Reap–Angkor Intl

32h 20m3 stops New York John F Kennedy Intl Frankfurt am Main Singapore Changi

10:45 am - 5:50 pmSAI Siem Reap–Angkor Intl-DEN Denver Intl

45h 05m2 stops Singapore Changi Los Angeles

$1,265Singapore Airlines

Wed, Feb 10 - Sun, Feb 28

11:35 am - 4:00 pmDEN Denver Intl-SAI Siem Reap–Angkor Intl

38h 25m3 stops New York John F Kennedy Intl Frankfurt am Main Singapore Changi

10:45 am - 5:50 pmSAI Siem Reap–Angkor Intl-DEN Denver Intl

45h 05m3 stops Singapore Changi Tokyo Narita Los Angeles

$1,269Singapore Airlines

Wed, Feb 10 - Sun, Feb 28

7:58 am - 9:55 amDEN Denver Intl-SAI Siem Reap–Angkor Intl

35h 57m2 stops Los Angeles Singapore Changi

10:45 am - 5:50 pmSAI Siem Reap–Angkor Intl-DEN Denver Intl

45h 05m2 stops Singapore Changi Los Angeles

$1,307Singapore Airlines

Wed, Feb 10 - Sun, Feb 28

5:45 pm - 4:00 pmDEN Denver Intl-SAI Siem Reap–Angkor Intl

32h 15m2 stops Los Angeles Singapore Changi

10:45 am - 5:54 pmSAI Siem Reap–Angkor Intl-DEN Denver Intl

45h 09m2 stops Singapore Changi Los Angeles

$1,307Singapore Airlines

Tue, Dec 1 - Tue, Dec 15

5:45 pm - 4:00 pmDEN Denver Intl-SAI Siem Reap–Angkor Intl

32h 15m2 stops Los Angeles Singapore Changi

10:45 am - 5:55 pmSAI Siem Reap–Angkor Intl-DEN Denver Intl

45h 10m2 stops Singapore Changi Los Angeles

$1,343Singapore Airlines

Tue, Dec 1 - Wed, Dec 16

10:41 am - 9:55 amDEN Denver Intl-SAI Siem Reap–Angkor Intl

33h 14m3 stops New York John F Kennedy Intl Frankfurt am Main Singapore Changi

10:45 am - 5:50 pmSAI Siem Reap–Angkor Intl-DEN Denver Intl

45h 05m2 stops Singapore Changi Los Angeles

$1,379Singapore Airlines

Mon, Feb 15 - Mon, Feb 22

8:22 am - 9:30 pmDEN Denver Intl-SAI Siem Reap–Angkor Intl

48h 08m3 stops Seattle/Tacoma Intl Dubai Intl Bangkok Suvarnabhumi

11:50 pm - 10:37 pmSAI Siem Reap–Angkor Intl-DEN Denver Intl

35h 47m3 stops Bangkok Suvarnabhumi Dubai Intl Seattle/Tacoma Intl

$1,543Multiple Airlines

Tue, Sep 22 - Tue, Oct 6

7:03 am - 9:10 pmDEN Denver Intl-SAI Siem Reap–Angkor Intl

48h 07m3 stops Seattle/Tacoma Intl Dubai Intl Bangkok Suvarnabhumi

11:50 pm - 8:57 pmSAI Siem Reap–Angkor Intl-DEN Denver Intl

35h 07m3 stops Bangkok Suvarnabhumi Dubai Intl Seattle/Tacoma Intl

$1,543Multiple Airlines

Tue, Nov 10 - Tue, Nov 24

7:30 pm - 6:30 pmDEN Denver Intl-SAI Siem Reap–Angkor Intl

33h 00m2 stops Istanbul Bangkok Suvarnabhumi

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

60h 00m2 stops Bangkok Suvarnabhumi Istanbul

$1,544Multiple Airlines

Mon, Nov 9 - Mon, Nov 23

7:30 pm - 12:40 pmDEN Denver Intl-SAI Siem Reap–Angkor Intl

27h 10m2 stops Istanbul Bangkok Suvarnabhumi

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

36h 00m2 stops Bangkok Suvarnabhumi Istanbul

$1,549Multiple Airlines

Wed, Dec 2 - Tue, Dec 15

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Singapore Airlines flights from Denver to Siem Reap

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

Singapore Airlines

Feb 10

DEN11:35 amDenver Intl

32h 20m

3 stops

SAI9:55 amSiem Reap–Angkor Intl

Feb 28

SAI10:45 amSiem Reap–Angkor Intl

45h 05m

2 stops

DEN5:50 pmDenver Intl

$1,265

Singapore Airlines

Feb 10

DEN11:35 amDenver Intl

38h 25m

3 stops

SAI4:00 pmSiem Reap–Angkor Intl

Feb 28

SAI10:45 amSiem Reap–Angkor Intl

45h 05m

3 stops

DEN5:50 pmDenver Intl

$1,269

Singapore Airlines

Dec 1

DEN5:45 pmDenver Intl

32h 15m

2 stops

SAI4:00 pmSiem Reap–Angkor Intl

Dec 15

SAI10:45 amSiem Reap–Angkor Intl

45h 09m

2 stops

DEN5:54 pmDenver Intl

$1,307

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Wed 2/10

11:35 am-9:55 am

3 stops32h 20m

Siem Reap–Angkor Intl

Sun 2/28

10:45 am-5:50 pm

2 stops45h 05m

$1,265

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Wed 2/10

11:35 am-4:00 pm

3 stops38h 25m

Siem Reap–Angkor Intl

Sun 2/28

10:45 am-5:50 pm

3 stops45h 05m

$1,269

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Wed 2/10

7:58 am-9:55 am

2 stops35h 57m

Siem Reap–Angkor Intl

Sun 2/28

10:45 am-5:50 pm

2 stops45h 05m

$1,307

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Tue 12/1

5:45 pm-4:00 pm

2 stops32h 15m

Siem Reap–Angkor Intl

Tue 12/15

10:45 am-5:54 pm

2 stops45h 09m

$1,307

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Tue 12/1

5:45 pm-4:00 pm

2 stops32h 15m

Siem Reap–Angkor Intl

Wed 12/16

10:45 am-5:55 pm

2 stops45h 10m

$1,343

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Mon 2/15

10:41 am-9:55 am

3 stops33h 14m

Siem Reap–Angkor Intl

Mon 2/22

10:45 am-5:50 pm

2 stops45h 05m

$1,379

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Tue 9/22

8:22 am-9:30 pm

3 stops48h 08m

Siem Reap–Angkor Intl

Tue 10/6

11:50 pm-10:37 pm

3 stops35h 47m

$1,543

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Tue 11/10

7:03 am-9:10 pm

3 stops48h 07m

Siem Reap–Angkor Intl

Tue 11/24

11:50 pm-8:57 pm

3 stops35h 07m

$1,543

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Mon 11/9

7:30 pm-6:30 pm

2 stops33h 00m

Siem Reap–Angkor Intl

Mon 11/23

7:25 pm-5:25 pm

2 stops60h 00m

$1,544

Quickest round-trip

DenverSiem Reap

DEN Denver Intl - SAI Siem Reap–Angkor Intl

DENSAI

Denver Intl

Wed 12/2

7:30 pm-12:40 pm

2 stops27h 10m

Siem Reap–Angkor Intl

Tue 12/15

7:25 pm-5:25 pm

2 stops36h 00m

$1,549

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first

When to book flights from Denver to Siem Reap

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to Siem Reap according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Denver to Siem Reap (DEN to SAI) flight deals and tips

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

Best Price Found	$601
Fastest flight time	32h 10m
Direct flights	None

The best one-way flight to Siem Reap from Denver in the past 72 hours is $601. The best round-trip flight deal from Denver to Siem Reap found on momondo in the last 72 hours is $1,265.

The fastest flight from Denver to Siem Reap takes 32h 10m

There are no direct flights from Denver to Siem Reap. There are no popular flight routes from Denver to Siem Reap.

Search flight deals

Frequently asked questions about flying from Denver to Siem Reap

How far is Denver Intl to Siem Reap–Angkor Intl by plane?
A flight from Denver Intl to Siem Reap–Angkor Intl will travel around 8320.6 mi. 32h 10m is a normal flight duration for this route.
When did momondo last update prices for flights from Denver Intl Airport to Siem Reap–Angkor Intl Airport?
Prices for flights from Denver Intl Airport to Siem Reap–Angkor Intl Airport were last updated today.
How many operators does momondo search for flights from Denver Intl Airport to Siem Reap–Angkor Intl Airport?
As of September 2026, there is 1 operator available to choose from for flights from Denver Intl Airport to Siem Reap–Angkor Intl Airport.
How old do you have to be to fly from Denver Intl Airport to Siem Reap–Angkor Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Denver Intl Airport to Siem Reap–Angkor Intl Airport.
What documentation or ID do you need to fly to Siem Reap–Angkor Intl Airport?
The required travel and health documents for your Siem Reap–Angkor Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Siem Reap–Angkor Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Denver to Siem Reap?
Based on momondo bookings for flights between Denver and Siem Reap, the leading airline is Singapore Airlines, making up 100% of the total bookings.

Best airlines flying from Denver to Siem Reap

Compare and see reviews for airlines that fly from Denver to Siem Reap with momondo

Airline	Rating	Free Cancellation	Price
Singapore Airlines	PriceFrom $835	Free Cancellation	Rating 8.2 1,600 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 Siem Reap?
You can take advantage of momondo’s Price Alerts by first searching for your flights to Denver from Siem Reap. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.
How can I save money on flights from Denver to Siem Reap with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

Why should I use momondo to find a flight deal from Denver 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 Denver to Siem Reap for you.

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

Yes. All flights to Siem Reap from Denver on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

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

Yes. momondo can track prices for Denver 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.

An easier way to manage your 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Tue 10/13

Tue 10/20

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Cambodia

Airlines

Cabin classes

Other Cambodia destinations

Other flights from Denver

Complete your trip

Feeling lucky

Fly your favorite airline to Siem Reap

Singapore Airlines

Cheap flights from Denver to Siem Reap from $601

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 11/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Denver to Siem Reap

Cheap round-trip flights

Cheap one-way flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Singapore Airlines flights from Denver to Siem Reap

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

momondo Fare Finder

Use the filters below to find and compare flights from Denver to Siem Reap that are best for you.

When to book flights from Denver to Siem Reap

Cheap Denver to Siem Reap (DEN to SAI) 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 Siem Reap

Compare and see reviews for airlines that fly from Denver to Siem Reap with momondo

Frequently asked questions about flying from Denver to Siem Reap

Why use momondo?

An easier way to manage your 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 Cambodia

Fly your favorite airline to Siem Reap

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Siem Reap

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

Popular cities in Cambodia

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

Fly to other destinations from Denver

According to popular flight searches on momondo this year

Complete your trip to Siem Reap

Explore popular destinations other users love

According to popular flight searches on momondo this year