App
Customer Support
AUD
Find Bookings
Worldwide Coverage
Worldwide Coverage
Flights to over 5,000 cities
One-stop Service Guarantee
One-stop Service Guarantee
Price guaranteed upon confirmed payment, booking guaranteed once tickets issued
Secure Payment
Secure Payment
Convenient & reliable booking and payment system

Cheap flight deals from Colombo to Siem Reap Starting at AU$270

Discover our range of affordable one-way and round-trip flights from Colombo to Siem Reap and kick-start your next adventure today!

  • One way
  • Round-trip
      • CMB22:55
        13h 45m
        1 stop
        SAI14:10
        Wed, Apr 23|Colombo - Siem Reap|AirAsia
        AU$270AU$371
        27% OFF
        27% OFF
        AU$371AU$270

        Choose AirAsia flights from Colombo to Siem Reap. The one-way connecting flight with AirAsia departs from Bandaranaike International Airport on Wed, Apr 23, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$270 including taxes and charges.

      • CMB22:50
        12h 50m
        1 stop
        SAI13:10
        Wed, Mar 5|Colombo - Siem Reap|AirAsia
        AU$272AU$371
        27% OFF
        27% OFF
        AU$371AU$272

        Choose AirAsia flights from Colombo to Siem Reap. The one-way connecting flight with AirAsia departs from Bandaranaike International Airport on Wed, Mar 5, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$272 including taxes and charges.

      • CMB22:55
        13h 50m
        1 stop
        SAI14:15
        Sun, Apr 20|Colombo - Siem Reap|AirAsia
        AU$272AU$371
        27% OFF
        27% OFF
        AU$371AU$272

        Choose AirAsia flights from Colombo to Siem Reap. The one-way connecting flight with AirAsia departs from Bandaranaike International Airport on Sun, Apr 20, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$272 including taxes and charges.

      • CMB10:25
        25h 10m
        1 stop
        SAI13:05
        Mon, Mar 24|Colombo - Siem Reap|AirAsia
        AU$275
        AU$275

        Choose AirAsia flights from Colombo to Siem Reap. The one-way connecting flight with AirAsia departs from Bandaranaike International Airport on Mon, Mar 24, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$275 including taxes and charges.

      • CMB22:55
        13h 50m
        1 stop
        SAI14:15
        Tue, Apr 22|Colombo - Siem Reap|AirAsia
        AU$277
        AU$277

        Choose AirAsia flights from Colombo to Siem Reap. The one-way connecting flight with AirAsia departs from Bandaranaike International Airport on Tue, Apr 22, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$277 including taxes and charges.

      • CMB22:50
        13h 50m
        1 stop
        SAI14:10
        Tue, Mar 25|Colombo - Siem Reap|AirAsia
        AU$278
        AU$278

        Choose AirAsia flights from Colombo to Siem Reap. The one-way connecting flight with AirAsia departs from Bandaranaike International Airport on Tue, Mar 25, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$278 including taxes and charges.

      • CMB22:50
        13h 50m
        1 stop
        SAI14:10
        Sun, Feb 23|Colombo - Siem Reap|AirAsia
        AU$278
        AU$278

        Choose AirAsia flights from Colombo to Siem Reap. The one-way connecting flight with AirAsia departs from Bandaranaike International Airport on Sun, Feb 23, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$278 including taxes and charges.

      • CMB22:50
        13h 50m
        1 stop
        SAI14:10
        Tue, Feb 25|Colombo - Siem Reap|AirAsia
        AU$280
        AU$280

        Choose AirAsia flights from Colombo to Siem Reap. The one-way connecting flight with AirAsia departs from Bandaranaike International Airport on Tue, Feb 25, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$280 including taxes and charges.

      • CMB22:50
        13h 50m
        1 stop
        SAI14:10
        Thu, Feb 20|Colombo - Siem Reap|AirAsia
        AU$284
        AU$284

        Choose AirAsia flights from Colombo to Siem Reap. The one-way connecting flight with AirAsia departs from Bandaranaike International Airport on Thu, Feb 20, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$284 including taxes and charges.

      • CMB22:50
        13h 50m
        1 stop
        SAI14:10
        Sun, Mar 2|Colombo - Siem Reap|AirAsia
        AU$284
        AU$284

        Choose AirAsia flights from Colombo to Siem Reap. The one-way connecting flight with AirAsia departs from Bandaranaike International Airport on Sun, Mar 2, arriving at Siem Reap Angkor International Airport. One-way Prices start from AU$284 including taxes and charges.

      • CMB01:00 pm
        3h 5m
        Nonstop
        REP02:00 pm
        Sat, Feb 22|Colombo - Siem Reap|AirAsia
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Colombo to Siem Reap flight time & flight schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. AK044

    AirAsia

    10:40

    CMB

    3.9h

    17:05

    KUL

    SMTWTFS
    Search

  2. AK540

    AirAsia

    13:05

    KUL

    2.2h

    14:15

    SAI

    S-TWT-S

  3. AK044

    AirAsia

    10:40

    CMB

    3.9h

    17:05

    KUL

    SMTWTFS
    Search

  4. AK542

    AirAsia

    11:45

    KUL

    2.1h

    12:50

    SAI

    -M-W-F-

  5. AK046

    AirAsia

    23:15

    CMB

    3.8h

    05:30

    KUL

    SMTWTFS
    Search

  6. AK540

    AirAsia

    13:05

    KUL

    2.2h

    14:15

    SAI

    S-TWT-S

  7. AK046

    AirAsia

    23:15

    CMB

    3.8h

    05:30

    KUL

    SMTWTFS
    Search

  8. AK542

    AirAsia

    11:45

    KUL

    2.1h

    12:50

    SAI

    -M-W-F-

  9. 3K332

    Jetstar Asia

    23:30

    CMB

    4.3h

    06:15

    SIN

    S-T--F-
    Search

  10. KT321

    AirAsia Cambodia

    12:50

    SIN

    2.2h

    14:00

    SAI

    -M-W-F-
Find more flights and airlines

When is the cheapest time to fly from Colombo to Siem Reap?

Explore the best time to buy affordable tickets to Siem Reap with our price trend chart, which predicts how flight prices will change in the coming weeks from previous data.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Colombo (CMB) to Siem Reap (REP) the cheapest?

    Airlines adjust prices for flights from Colombo to Siem Reap based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Colombo (CMB) to Siem Reap (REP) cost?

    According to Trip.com's data, the lowest price is around AU$903.

  • What is the transportation method from the main airport to downtown in Siem Reap?

    • The distance from Siem Reap Angkor International Airport to downtown is about 39 km, by taxi about 50 minutes.

  • How many airports are there in Siem Reap (REP)?

    There are 1 airport(s) near Siem Reap (REP): Siem Reap Angkor International Airport.

How to find a cheap flight from Colombo to Siem Reap

If you don’t know some of the key things to look out for when buying flight tickets, prices can often end up sky high or, worse, sold out! We’ve carefully compiled our six most important steps to help ensure you’re getting the best deals when planning your next journey.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Info | Colombo to Siem Reap

Cheapest direct flight priceAU$270
Off-season for travelFebruary
Peak season for travelNovember
Flight distance2,717.69 km
Popular airlineAirAsia Berhad (Malaysia)

Contact Us

About

Other Services

Payment Methods
Our Partners
Copyright © 2025 Trip.com Travel Singapore Pte. Ltd. All rights reserved
Site Operator: Trip.com Travel Singapore Pte. Ltd.