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Cheap Flights from Siem Reap to Phnom Penh

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Compare Siem Reap to Phnom Penh flight deals

Find the cheapest month or even day of the year to fly to Phnom Penh

Book the best Phnom Penh fare with no extra fees

Flight deals from Siem Reap to Phnom Penh

Looking for a cheap last-minute deal or the best return flight from Siem Reap to Phnom Penh? Find the lowest prices on one-way and return tickets right here.
Phnom Penh.R 867 per passenger.Departing Sat, 29 Mar.One-way flight with Cambodia Angkor Air.Outbound direct flight with Cambodia Angkor Air departs from Siem Reap–Angkor on Sat, 29 Mar, arriving in Phnom Penh.Price includes taxes and charges.From R 867, select.
Phnom Penh.R 877 per passenger.Departing Wed, 23 Jul.One-way flight with AirAsia Cambodia.Outbound direct flight with AirAsia Cambodia departs from Siem Reap–Angkor on Wed, 23 Jul, arriving in Phnom Penh.Price includes taxes and charges.From R 877, select.
Phnom Penh.R 880 per passenger.Departing Mon, 11 Aug.One-way flight with AirAsia Cambodia.Outbound direct flight with AirAsia Cambodia departs from Siem Reap–Angkor on Mon, 11 Aug, arriving in Phnom Penh.Price includes taxes and charges.From R 880, select.
Phnom Penh.R 949 per passenger.Departing Sun, 4 May.One-way flight with Cambodia Angkor Air.Outbound direct flight with Cambodia Angkor Air departs from Siem Reap–Angkor on Sun, 4 May, arriving in Phnom Penh.Price includes taxes and charges.From R 949, select.
Phnom Penh.R 963 per passenger.Departing Tue, 1 Apr.One-way flight with Cambodia Angkor Air.Outbound direct flight with Cambodia Angkor Air departs from Siem Reap–Angkor on Tue, 1 Apr, arriving in Phnom Penh.Price includes taxes and charges.From R 963, select.
Phnom Penh.R 1,055 per passenger.Departing Wed, 26 Nov.One-way flight with AirAsia Cambodia.Outbound direct flight with AirAsia Cambodia departs from Siem Reap–Angkor on Wed, 26 Nov, arriving in Phnom Penh.Price includes taxes and charges.From R 1,055, select.
Phnom Penh.R 1,055 per passenger.Departing Fri, 3 Oct.One-way flight with AirAsia Cambodia.Outbound direct flight with AirAsia Cambodia departs from Siem Reap–Angkor on Fri, 3 Oct, arriving in Phnom Penh.Price includes taxes and charges.From R 1,055, select.
Phnom Penh.R 1,063 per passenger.Departing Wed, 18 Jun.One-way flight with AirAsia Cambodia.Outbound direct flight with AirAsia Cambodia departs from Siem Reap–Angkor on Wed, 18 Jun, arriving in Phnom Penh.Price includes taxes and charges.From R 1,063, select.

Find the cheapest month to fly from Siem Reap to Phnom Penh

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Siem Reap to Phnom Penh flights are currently cheapest in March.
Mar
from R 867
Apr
from R 963
May
from R 949
Jun
from R 1,063
Jul
from R 877
Aug
from R 880
Sep
from R 1,063
Oct
from R 1,055
Nov
from R 1,055
Dec
from R 1,238
Jan
from R 1,236
Feb
from R 1,244

Direct flights from Siem Reap to Phnom Penh

Siem Reap to Phnom Penh: Alternative routes

Compare routes from Siem Reap to Phnom Penh below. You may find an airport to fly into that's cheaper, faster, or easier than Phnom Penh.

Siem Reap to Phnom Penh: Flight information

The things to know before you go.
Cheapest flight foundR 867
Cheapest month to flyMarch
Average flight time53 mins
Most popular airlineCambodia Angkor Air
Average flights per week64

Finding cheap flights from Siem Reap to Phnom Penh: Frequently asked questions

The best price we found for a return flight from Siem Reap to Phnom Penh is R 1,761. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
53 minutes is the average flight time from Siem Reap to Phnom Penh.
Cambodia Angkor Air, Vietnam Airlines and AirAsia Cambodia fly direct from Siem Reap to Phnom Penh.
As of March 2025, there are 64 flights per week flying from Siem Reap to Phnom Penh.
The cheapest month to fly from Siem Reap to Phnom Penh is usually March 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Siem Reap to Phnom Penh Airport on Wednesday, 23 July 2025.
Yes – the average flight time is 53 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Phnom Penh but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Phnom Penh is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Phnom Penh is AirAsia Cambodia .

How to find cheap flights to Phnom Penh from Siem Reap

Looking for cheap tickets from Siem Reap to Phnom Penh? Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

  • Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Siem Reap to Phnom Penh. And with us there are no hidden fees - what you see is what you pay.
  • Compare flight deals to Phnom Penh from Siem Reap from over 1,000 providers. Then choose the cheapest or fastest plane tickets.
  • Flex your dates to find the best Siem Reap-Phnom Penh ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to Phnom Penh from Siem Reap.
  • Set up a Price Alert. You can easily track the fare of your cheap Siem Reap-Phnom Penh flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
  • Fly without stops. Only interested in direct flights between Siem Reap and Phnom Penh? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights available on the route, these will appear in the results.
  • Find the cheapest Business class flights from Siem Reap and Phnom Penh. We scour the internet for the best Business, Premium Economy and First Class flight fares to Phnom Penh, too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
  • Include nearby airports in your search. Widen your search for Siem Reap to Phnom Penh flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.

    • Combine your flight to Phnom Penh from Siem Reap with hotels and car hire

    Once you've secured your cheap flight ticket from Siem Reap to Phnom Penh, discover the best prices and exclusive rates for hotels in Phnom Penh or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.


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Plan the rest of your trip from Siem Reap to Phnom Penh

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.