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 April 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.

$1,560 Cheap Flights from Denver to Siem Reap in 2026

1 adult

0 bags

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.

8:00 am - 9:40 am

DEN

SAI

36h 40m

2 stops

10:30 am - 8:30 pm

SAI

DEN

47h 00m

2 stops

$1,560Multiple Airlines

Sun, Oct 4 - Sat, Oct 17

12:49 pm - 9:30 pm

DEN

SAI

43h 41m

3 stops

11:50 pm - 11:48 pm

SAI

DEN

36h 58m

3 stops

$1,595Multiple Airlines

Sun, Oct 4 - Sat, Oct 17

5:45 pm - 3:10 pm

DEN

SAI

56h 25m

3 stops

10:30 am - 8:30 pm

SAI

DEN

47h 00m

2 stops

$1,642Multiple Airlines

Sun, Oct 4 - Sat, Oct 17

7:36 am - 12:20 pm

DEN

SAI

39h 44m

3 stops

7:35 pm - 12:17 am

SAI

DEN

41h 42m

3 stops

$1,907Qatar Airways

Sun, May 10 - Sun, Jun 14

7:36 am - 12:20 pm

DEN

SAI

39h 44m

3 stops

7:35 pm - 12:06 am

SAI

DEN

41h 31m

3 stops

$1,962Qatar Airways

Sun, May 10 - Sun, Jun 14

6:00 am - 9:40 am

DEN

SAI

38h 40m

2 stops

4:00 pm - 7:40 pm

SAI

DEN

40h 40m

2 stops

$1,966Multiple Airlines

Sun, May 10 - Sun, Jun 14

7:36 am - 12:20 pm

DEN

SAI

39h 44m

3 stops

7:35 pm - 12:06 am

SAI

DEN

41h 31m

3 stops

$1,990Qatar Airways

Sun, May 10 - Sun, Jun 14

6:00 am - 9:40 am

DEN

SAI

38h 40m

2 stops

4:00 pm - 10:59 pm

SAI

DEN

43h 59m

3 stops

$2,011Multiple Airlines

Sun, May 10 - Sun, Jun 14

9:00 am - 9:40 am

DEN

SAI

59h 40m

2 stops

4:00 pm - 7:41 pm

SAI

DEN

40h 41m

2 stops

$2,041Multiple Airlines

Sat, May 30 - Fri, Jun 12

7:50 pm - 9:05 am

DEN

SAI

24h 15m

2 stops

7:35 pm - 11:12 pm

SAI

DEN

40h 37m

2 stops

$2,151Multiple Airlines

Sat, Jun 6 - Sun, Jun 21

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Qatar Airways flights from Denver to Siem Reap

Our best Qatar Airways deals on Denver to Siem Reap flight tickets

Qatar Airways

May 10

DEN7:36 amDenver Intl

39h 44m

3 stops

SAI12:20 pmSiem Reap–Angkor Intl

Jun 14

SAI7:35 pmSiem Reap–Angkor Intl

41h 42m

3 stops

DEN12:17 amDenver Intl

$1,907

Qatar Airways

May 10

DEN7:36 amDenver Intl

39h 44m

3 stops

SAI12:20 pmSiem Reap–Angkor Intl

Jun 14

SAI7:35 pmSiem Reap–Angkor Intl

41h 31m

3 stops

DEN12:06 amDenver Intl

$1,962

Qatar Airways

May 10

DEN7:36 amDenver Intl

39h 44m

3 stops

SAI12:20 pmSiem Reap–Angkor Intl

Jun 14

SAI7:35 pmSiem Reap–Angkor Intl

41h 31m

3 stops

DEN12:06 amDenver Intl

$1,990

Singapore Airlines flights from Denver to Siem Reap

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

Singapore Airlines

Jun 2

DEN6:00 amDenver Intl

38h 40m

2 stops

SAI9:40 amSiem Reap–Angkor Intl

Jun 14

SAI10:30 amSiem Reap–Angkor Intl

46h 10m

2 stops

DEN7:40 pmDenver Intl

$2,227

Singapore Airlines

Jun 2

DEN6:00 amDenver Intl

38h 40m

2 stops

SAI9:40 amSiem Reap–Angkor Intl

Jun 14

SAI10:30 amSiem Reap–Angkor Intl

46h 10m

2 stops

DEN7:40 pmDenver Intl

$2,341

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

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

Sun 5/10

7:36 am-12:20 pm

3 stops39h 44m

Siem Reap–Angkor Intl

Sun 6/14

7:35 pm-12:17 am

3 stops41h 42m

$1,907

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Sun 5/10

7:36 am-12:20 pm

3 stops39h 44m

Siem Reap–Angkor Intl

Sun 6/14

7:35 pm-12:06 am

3 stops41h 31m

$1,962

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Sun 5/10

6:00 am-9:40 am

2 stops38h 40m

Siem Reap–Angkor Intl

Sun 6/14

4:00 pm-7:40 pm

2 stops40h 40m

$1,966

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Sun 5/10

7:36 am-12:20 pm

3 stops39h 44m

Siem Reap–Angkor Intl

Sun 6/14

7:35 pm-12:06 am

3 stops41h 31m

$1,990

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Sun 5/10

6:00 am-9:40 am

2 stops38h 40m

Siem Reap–Angkor Intl

Sun 6/14

4:00 pm-10:59 pm

3 stops43h 59m

$2,011

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Sat 5/30

9:00 am-9:40 am

2 stops59h 40m

Siem Reap–Angkor Intl

Fri 6/12

4:00 pm-7:41 pm

2 stops40h 41m

$2,041

Quickest round-trip

DenverSiem Reap

DEN - SAI

DENSAI

Denver Intl

Sat 6/6

7:50 pm-9:05 am

2 stops24h 15m

Siem Reap–Angkor Intl

Sun 6/21

7:35 pm-11:12 pm

2 stops40h 37m

$2,151

Flights are sorted by cheapest round-trip flights first.

Sorted 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

Fastest flight time	30h 50m
Direct flights	None

The fastest flight from Denver to Siem Reap takes 30h 50m

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. 30h 50m 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 April 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 1,502 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.

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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.

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Qatar Airways flights from Denver to Siem Reap

Our best Qatar Airways deals on Denver to Siem Reap flight tickets

Singapore Airlines flights from Denver to Siem Reap

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

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When to book flights from Denver to Siem Reap

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

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.

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