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Cheap flights from Phnom Penh to Siem Reap, Cambodia from £36

KTI — SAI
4 Nov — 11 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Phnom Penh to Siem Reap

Enter your travel dates to find the best prices.

Cheapest flights from Phnom Penh to Siem Reap

Wed 14/1008:35 -
Nonstop1h 00m
Fri 16/1019:20 -
Nonstop0h 50m
Deal found 5/10£94
Wed 7/1009:55 -
Nonstop0h 55m
Fri 9/1011:30 -
Nonstop1h 05m
Deal found 5/10£103
Sun 18/1008:35 -
Nonstop1h 00m
Sat 24/1020:20 -
Nonstop1h 10m
Deal found 4/10£113
Sun 18/1016:55 -
Nonstop0h 55m
Sun 25/1019:40 -
Nonstop1h 05m
Deal found 3/10£114
Sun 11/1008:35 -
Nonstop1h 00m
Mon 12/1011:30 -
Nonstop1h 05m
Deal found 3/10£120
Sat 5/1209:30 -
Nonstop1h 05m
Sun 6/1219:40 -
Nonstop1h 05m
Deal found 3/10£122
Sat 7/1109:30 -
Nonstop1h 05m
Tue 10/1119:40 -
Nonstop1h 05m
Deal found 2/10£127
Thu 3/1209:30 -
Nonstop1h 05m
Fri 4/1215:20 -
Nonstop1h 05m
Deal found 2/10£134
Tue 22/1209:30 -
Nonstop1h 05m
Fri 25/1215:20 -
Nonstop1h 05m
Deal found 3/10£141
Mon 5/1016:00 -
Nonstop1h 05m
Mon 5/1019:15 -
Nonstop1h 05m
Deal found 3/10£145

Find flight deals from Phnom Penh to Siem Reap

Round-trip from

£113

One-way from

£36

Popular in

April

Cheapest in

July

Average price

£128
Cambodia Airways
  • Cambodia Airways
  • 18/10-24/10
  • Nonstop
  • 2h 10m total
  • Phnom Penh to Siem Reap
Search Deals
Cambodia Angkor Air
  • Cambodia Angkor Air
  • 22/10-31/12
  • Nonstop
  • 0h 50m total
  • Phnom Penh to Siem Reap
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£18 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
Search Deals

Cheapflights Fare Finder

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

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Route

Depart

Return

Price

Cheapest return flight

Phnom PenhSiem Reap

KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl

KTISAI

Phnom Penh Techo Intl

Fri 20/11

09:00-10:05

Nonstop1h 05m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£66

Phnom PenhSiem Reap

KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl

KTISAI

Phnom Penh Techo Intl

Mon 30/11

09:00-10:05

Nonstop1h 05m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£69

Phnom PenhSiem Reap

KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl

KTISAI

Phnom Penh Techo Intl

Wed 11/11

08:30-09:35

Nonstop1h 05m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£69

Phnom PenhSiem Reap

KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl

KTISAI

Phnom Penh Techo Intl

Thu 19/11

09:30-10:35

Nonstop1h 05m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£69

Phnom PenhSiem Reap

KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl

KTISAI

Phnom Penh Techo Intl

Sun 11/10

08:35-09:35

Nonstop1h 00m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£69

Phnom PenhSiem Reap

KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl

KTISAI

Phnom Penh Techo Intl

Tue 29/12

08:30-09:35

Nonstop1h 05m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£69

Phnom PenhSiem Reap

KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl

KTISAI

Phnom Penh Techo Intl

Mon 2/11

09:00-10:05

Nonstop1h 05m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£69

Phnom PenhSiem Reap

KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl

KTISAI

Phnom Penh Techo Intl

Sat 5/12

09:30-10:35

Nonstop1h 05m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£69

Phnom PenhSiem Reap

KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl

KTISAI

Phnom Penh Techo Intl

Sat 26/12

09:30-10:35

Nonstop1h 05m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£75
Fastest return journey

Phnom PenhSiem Reap

KTI Phnom Penh Techo Intl - SAI Siem Reap–Angkor Intl

KTISAI

Phnom Penh Techo Intl

Sat 31/10

11:10-12:05

Nonstop0h 55m

Siem Reap–Angkor Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£76

Flights are sorted by cheapest return flights first.

Deals found on 2/10

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Phnom Penh to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap from Phnom Penh with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Phnom Penh to Siem Reap

How far ahead should I book a flight from Phnom Penh to Siem Reap?

To ensure you get the cheapest price possible for a flight from Phnom Penh to Siem Reap, you should look to book at least 63 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Phnom Penh to Siem Reap?

Currently, July is the cheapest month in which you can book a flight from Phnom Penh to Siem Reap (average of £76). Flying from Phnom Penh to Siem Reap in April is currently the most expensive (average of £159). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from KTI to SAI?

A simple way to save on the total cost of your ticket is to fly from Phnom Penh to Siem Reap in the evening. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight at midday.

How much does it cost for a return flight from Phnom Penh to Siem Reap?

Airfare is typical for this route at the moment.

Phnom Penh to Siem Reap flights typically cost between £110 and £156 in October.
The cheapest return price found within the last 5 days was £113 on Cambodia Airways (18 Oct–24 Oct).

Related info for your journey

  • How popular is this Phnom Penh to Siem Reap flight route?

    Within the past month, 3 users have taken a look at flights from Phnom Penh Techo Intl to Siem Reap–Angkor Intl.

  • How long is the flight from Phnom Penh to Siem Reap?

    A quick flight from Phnom Penh to Siem Reap can take about 1h. Cambodia Airways provides one of the quickest options available for as low as £113. Airlines will cover a distance of 147 mi. All flights are typically direct.

  • What is the cheapest airline to fly from Phnom Penh to Siem Reap round-trip?

    Flying on Cambodia Angkor Air is currently your cheapest option to Siem Reap, with prices starting at £85. Cambodia Angkor Air is priced at 30% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Phnom Penh to Siem Reap?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Phnom Penh to Siem Reap on time: Cambodia Airways (90%), Vietnam Airlines (83%), Cambodia Angkor Air (83%).

  • Can I find deals for flights from Phnom Penh to Siem Reap that include hotel bookings?

    Yes. In addition to deals on Phnom Penh to Siem Reap flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Phnom Penh to Siem Reap?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Phnom Penh to Siem Reap.

  • Can I find deals for business class flights from Phnom Penh to Siem Reap?

    Yes. Cheapflights offers flight deals from Phnom Penh to Siem Reap by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Phnom Penh to Siem Reap?

    Currently, July is the cheapest month in which you can book a flight from Phnom Penh to Siem Reap (average of £76). Flying from Phnom Penh to Siem Reap in April is currently the most expensive (average of £159). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Phnom Penh to Siem Reap

AirlineCheapestAverageFlexibilityOn-time
Cambodia Angkor AirCheapest£85Average£144FlexibilityNo cancel feeOn-timeN/A
Search Cambodia Angkor Air flights

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