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Use the filters below to find and compare flights from Phnom Penh to Siem Reap that are best for you.
Fly from
Fly to
Route
Depart
Return
Phnom PenhSiem Reap
KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl
KTISAI
Phnom Penh Techo Intl
Sun 18/10
8:35-9:35
Nonstop1h 00m
Siem Reap–Angkor Intl
Sat 24/10
20:20-21:30
Nonstop1h 10m
Phnom PenhSiem Reap
KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl
KTISAI
Phnom Penh Techo Intl
Sat 7/11
9:30-10:35
Nonstop1h 05m
Siem Reap–Angkor Intl
Tue 10/11
19:40-20:45
Nonstop1h 05m
Phnom PenhSiem Reap
KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl
KTISAI
Phnom Penh Techo Intl
Thu 3/12
9:30-10:35
Nonstop1h 05m
Siem Reap–Angkor Intl
Fri 4/12
15:20-16:25
Nonstop1h 05m
Phnom PenhSiem Reap
KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl
KTISAI
Phnom Penh Techo Intl
Sun 8/11
9:30-10:35
Nonstop1h 05m
Siem Reap–Angkor Intl
Tue 10/11
19:40-20:45
Nonstop1h 05m
Phnom PenhSiem Reap
KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl
KTISAI
Phnom Penh Techo Intl
Sun 18/10
18:35-11:10
1 stop16h 35m
Siem Reap–Angkor Intl
Sat 24/10
20:20-21:30
Nonstop1h 10m
Phnom PenhSiem Reap
KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl
KTISAI
Phnom Penh Techo Intl
Sun 18/10
21:05-17:10
2 stops44h 05m
Siem Reap–Angkor Intl
Sat 24/10
20:20-21:30
Nonstop1h 10m
Phnom PenhSiem Reap
KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl
KTISAI
Phnom Penh Techo Intl
Sun 18/10
21:05-18:05
3 stops21h 00m
Siem Reap–Angkor Intl
Sat 24/10
20:20-21:30
Nonstop1h 10m
Phnom PenhSiem Reap
KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl
KTISAI
Phnom Penh Techo Intl
Sun 8/11
13:50-17:40
1 stop3h 50m
Siem Reap–Angkor Intl
Tue 10/11
20:30-13:00
2 stops16h 30m
Phnom PenhSiem Reap
KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl
KTISAI
Phnom Penh Techo Intl
Thu 3/12
13:50-20:30
1 stop6h 40m
Siem Reap–Angkor Intl
Fri 4/12
21:30-16:40
1 stop19h 10m
Phnom PenhSiem Reap
KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl
KTISAI
Phnom Penh Techo Intl
Mon 26/10
20:00-16:55
1 stop20h 55m
Siem Reap–Angkor Intl
Mon 2/11
17:55-13:00
2 stops19h 05m
See travel insights to Siem Reap from
How to get the cheapest flight ticket from Phnom Penh 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 typical price of a round-trip flight between Phnom Penh and Siem Reap?
Prices are currently typical for flights on this route.
Typical prices usually range from R2 432 to R3 449.The lowest price recently found on this route was R2 499.
What is the cheapest month to fly to Siem Reap?
The month of August is another great option to travel to Siem Reap, with average flight prices from Phnom Penh averaging around R1 783.
What is the cheapest Phnom Penh Techo Intl to Siem Reap–Angkor Intl flight route?
Fly from Phnom Penh Techo Intl to Siem Reap–Angkor Intl for the best Phnom Penh Techo Intl - Siem Reap–Angkor Intl flight prices
How far in advance should I book a flight from Phnom Penh to Siem Reap?
You are more likely to see cheaper flights to Siem Reap from Phnom Penh when booking weeks ahead of your departure date. In general, you can expect to find flights to Siem Reap for around R2 709 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Siem Reap from Phnom Penh for as low as R2 133 on momondo.
What cabin class options are available on Phnom Penh to Siem Reap flights?
There is only 1 cabin class available to choose from on Phnom Penh to Siem Reap flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How many flights depart from Phnom Penh to Siem Reap on average per day?
3 flights are operational daily from Phnom Penh to Siem Reap as of October 2026. The most popular departure time for this route is 16:00, with 37% of flights per day taking off at midday.
How many flights depart from Phnom Penh to Siem Reap on average per week?
The number of flights available between Phnom Penh and Siem Reap is 27 per week as of October 2026. The most frequent departure day is Fri, with 26% of weekly flights leaving on this day.
When to book flights from Phnom Penh to Siem Reap
Cheap Phnom Penh to Siem Reap (KTI to SAI) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Phnom Penh to Siem Reap
Frequently asked questions about flying from Phnom Penh to Siem Reap
How far is Phnom Penh Techo Intl to Siem Reap–Angkor Intl by plane?
A flight from Phnom Penh Techo Intl to Siem Reap–Angkor Intl will travel around 230,3 km.
When did momondo last update prices for flights from Phnom Penh Techo Intl Airport to Siem Reap–Angkor Intl Airport?
Prices for flights from Phnom Penh Techo Intl Airport to Siem Reap–Angkor Intl Airport were last updated today.
How old do you have to be to fly from Phnom Penh Techo 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 stopovers 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 Phnom Penh Techo Intl Airport 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 licence, 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.
Why use momondo?
Why should I use momondo to find a flight deal from Phnom Penh to Siem Reap?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Phnom Penh to Siem Reap. momondo saves you time and could save you money on your trip.
Can I find flights from Phnom Penh to Siem Reap with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Siem Reap from Phnom Penh with this policy.
How can momondo help me find flights from Phnom Penh to Siem Reap?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Siem Reap from Phnom Penh.
I’m not ready to book a flight from Phnom Penh to Siem Reap right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Phnom Penh 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.