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Cheap Flights from Phnom Penh (PNH) to Colombo (CMBA)

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      Travellers and cabin class, 1 Adult, Economy
      1. Home
      2. Cambodia
      3. Phnom Penh
      4. Colombo

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      Flight deals from Phnom Penh to Colombo

      Looking for a cheap last-minute deal or the best return flight from Phnom Penh to Colombo? Find the lowest prices on one-way and return tickets right here.
      Colombo.£237 per passenger.Departing Fri, 1 Aug, returning Thu, 14 Aug.Return flight with AirAsia Cambodia and AirAsia.Outbound indirect flight with AirAsia Cambodia, departs from Phnom Penh on Fri, 1 Aug, arriving in Colombo Bandaranayake.Inbound indirect flight with AirAsia, departs from Colombo Bandaranayake on Thu, 14 Aug, arriving in Phnom Penh.Price includes taxes and charges.From £237, select.
      Fri, 1 AugPNH - CMB with AirAsia Cambodia
      1 stop
      Thu, 14 AugCMB - PNH with AirAsia
      1 stop
      from £237
      Colombo.£265 per passenger.Departing Thu, 11 Sep, returning Thu, 2 Oct.Return flight with Thai VietJet Air and AirAsia.Outbound indirect flight with Thai VietJet Air, departs from Phnom Penh on Thu, 11 Sep, arriving in Colombo Bandaranayake.Inbound indirect flight with AirAsia, departs from Colombo Bandaranayake on Thu, 2 Oct, arriving in Phnom Penh.Price includes taxes and charges.From £265, select.
      Thu, 11 SepPNH - CMB with Thai VietJet Air
      1 stop
      Thu, 2 OctCMB - PNH with AirAsia
      1 stop
      from £265
      Colombo.£267 per passenger.Departing Tue, 29 Jul, returning Thu, 31 Jul.Return flight with AirAsia Cambodia and AirAsia.Outbound indirect flight with AirAsia Cambodia, departs from Phnom Penh on Tue, 29 Jul, arriving in Colombo Bandaranayake.Inbound indirect flight with AirAsia, departs from Colombo Bandaranayake on Thu, 31 Jul, arriving in Phnom Penh.Price includes taxes and charges.From £267, select.
      Tue, 29 JulPNH - CMB with AirAsia Cambodia
      1 stop
      Thu, 31 JulCMB - PNH with AirAsia
      1 stop
      from £267
      Colombo.£280 per passenger.Departing Sun, 31 Aug, returning Wed, 10 Sep.Return flight with AirAsia Cambodia and FitsAir.Outbound indirect flight with AirAsia Cambodia, departs from Phnom Penh on Sun, 31 Aug, arriving in Colombo Bandaranayake.Inbound indirect flight with FitsAir, departs from Colombo Bandaranayake on Wed, 10 Sep, arriving in Phnom Penh.Price includes taxes and charges.From £280, select.
      Sun, 31 AugPNH - CMB with AirAsia Cambodia
      1 stop
      Wed, 10 SepCMB - PNH with FitsAir
      1 stop
      from £280
      Colombo.£291 per passenger.Departing Mon, 1 Dec, returning Mon, 8 Dec.Return flight with AirAsia Cambodia and FitsAir.Outbound indirect flight with AirAsia Cambodia, departs from Phnom Penh on Mon, 1 Dec, arriving in Colombo Bandaranayake.Inbound indirect flight with FitsAir, departs from Colombo Bandaranayake on Mon, 8 Dec, arriving in Phnom Penh.Price includes taxes and charges.From £291, select.
      Mon, 1 DecPNH - CMB with AirAsia Cambodia
      1 stop
      Mon, 8 DecCMB - PNH with FitsAir
      1 stop
      from £291
      Colombo.£301 per passenger.Departing Mon, 21 Jul, returning Mon, 4 Aug.Return flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Phnom Penh on Mon, 21 Jul, arriving in Colombo Bandaranayake.Inbound indirect flight with Thai AirAsia, departs from Colombo Bandaranayake on Mon, 4 Aug, arriving in Phnom Penh.Price includes taxes and charges.From £301, select.
      Mon, 21 JulPNH - CMB with Thai AirAsia
      1 stop
      Mon, 4 AugCMB - PNH with Thai AirAsia
      1 stop
      from £301
      Colombo.£306 per passenger.Departing Mon, 12 Jan, returning Tue, 27 Jan.Return flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Phnom Penh on Mon, 12 Jan, arriving in Colombo Bandaranayake.Inbound indirect flight with Thai AirAsia, departs from Colombo Bandaranayake on Tue, 27 Jan, arriving in Phnom Penh.Price includes taxes and charges.From £306, select.
      Mon, 12 JanPNH - CMB with Thai AirAsia
      1 stop
      Tue, 27 JanCMB - PNH with Thai AirAsia
      1 stop
      from £306
      Colombo.£320 per passenger.Departing Mon, 1 Sep, returning Tue, 16 Sep.Return flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Phnom Penh on Mon, 1 Sep, arriving in Colombo Bandaranayake.Inbound indirect flight with Thai AirAsia, departs from Colombo Bandaranayake on Tue, 16 Sep, arriving in Phnom Penh.Price includes taxes and charges.From £320, select.
      Mon, 1 SepPNH - CMB with Thai AirAsia
      1 stop
      Tue, 16 SepCMB - PNH with Thai AirAsia
      1 stop
      from £320
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from Phnom Penh to Colombo found in the last 4 days, and are subject to change and availability.

      Find the cheapest month to fly from Phnom Penh to Colombo

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Phnom Penh to Colombo flights are currently cheapest in August.
      Jul
      from £267
      Aug
      from £237
      Sep
      from £320
      Oct
      from £325
      Nov
      Find prices
      Dec
      from £291
      Jan
      from £306
      Feb
      from £338
      Mar
      Find prices
      Apr
      Find prices
      May
      Find prices
      Jun
      Find prices

      Alternative Phnom Penh to Colombo routes

      Looking for the cheapest, fastest or easiest route from Phnom Penh to Colombo? You could fly into the following airports instead.

      Phnom Penh to Colombo: Flight information

      The things to know before you go.
      Cheapest flight found£237
      Cheapest month to flyAugust

      Finding cheap flights from Phnom Penh to Colombo: Frequently asked questions

      There are 5 airports in Colombo: Kelaniya, Colombo Ratmalana, Colombo Bandaranayake, Bentota River, and Katugastota.
      The best price we found for a return flight from Phnom Penh to Colombo is £237. 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.
      Currently, there are no airlines that fly direct from Phnom Penh to Colombo. But we found flights with one or more stops from £237.
      As of July 2025, there are no flights flying from Phnom Penh to Colombo.
      The cheapest month to fly from Phnom Penh to Colombo is usually August.
      If you're flying from Phnom Penh Airport, the cheapest airport near Colombo is Colombo Bandaranayake – which is 17.1 miles away from the centre of Colombo. We've found flights into this airport from £237.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Phnom Penh Airport to Colombo on Friday, 1 August 2025.
      No airlines currently offer direct flights between Phnom Penh Airport and Colombo. Most routes have one or more stops.
      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 Colombo 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 Colombo is around 40 days in advance, so don’t leave your flight to the last minute.
      In July, the average temperature is usually around 26°C. May is typically the warmest month in Colombo, when it usually averages around 29°C. You can expect the least rain in February. The coldest month is July, with temperatures averaging 25°C. The rainiest month is November.
      Currently, AirAsia Cambodia offers the cheapest flight tickets to Colombo.

      Flying from Phnom Penh International Airport (PNH) to Colombo: what you need to know

      • Colombo is one hour 30 minutes behind Phnom Penh, where Phnom Penh International Airport is located. Colombo follows the UTC+5:30 timezone.

      • For hassle-free travel, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This leaves you with plenty of time to board your PNH to Colombo flight.

      • If you're jetting off during a major holiday or another peak period, give yourself more time. A good general rule is two hours ahead of domestic flights and up to four hours before international departures. Lines at security and check-in will be longer.

      • Think about adding a stopover to potentially unlock a cheaper plane ticket from PNH to Colombo. Just uncheck 'Direct flights only' during your search. Break up your journey by stopping at one of these connection hubs:

        • Kuala Lumpur International Airport (KUL)

        • Suvarnabhumi Airport (BKK)

        • Changi International Airport (SIN)

      • To reach PNH from central Phnom Penh, it'll take around 30 minutes if you're going by car. It's roughly 6 miles from the airport to the city centre.

      • Have an early flight from Phnom Penh International Airport to Colombo? Avoid the last-minute rush to the airport (and catch some extra z's) by choosing one of these stays near PNH:

        • Joli Hotel

        • Le Kree Downtown Hotel

        • Ban Ban Hotel

      • 74.4% of flights leaving from Phnom Penh International Airport arrive at their destination on schedule.

      How to find the cheapest flights from Phnom Penh International Airport (PNH) to Colombo

      • £94 is the cheapest price we've seen for a one-way Phnom Penh International Airport to Colombo flight. A round-trip plane ticket right now is £237. Depending on when you book and the availability, these fares could change.

      • Booking ahead of time is often the key to locking in a cheap flight from PNH to Colombo. Airlines adjust prices based on demand, so the nearer your departure date, the more you'll likely pay.

      • If you can be flexible with your trip dates, use the 'Whole month' search tool. It'll show you the lowest price across every month when looking for your Phnom Penh International Airport to Colombo ticket.

      • Save time looking for cheap flights from PNH to Colombo by creating a Price Alert. You'll get an email or push notification on the app when a new low fare is offered.

      • Pick your ideal arrival and departure times, airlines and number of stops with our filters. Then, sort the results for your flight from Phnom Penh International Airport to Colombo by 'Cheapest,' 'Fastest' or 'Best.'

      Airports in Colombo

      Colombo Ratmalana Airport (RML)

      • Colombo Ratmalana Airport (RML) is around 10 miles from central Colombo. If you're getting a cab or a ride-share, the drive takes about 40 minutes.

      • When travelling on public transport, expect a journey time of around 1 hour 15 minutes.

      • The last thing you need is a lengthy journey to your hotel if you're arriving on a late flight from Phnom Penh International Airport to Colombo. Book one of these accommodation options near RML instead:

        • Mount Lavinia Hotel

        • Breeze of Paradise

        • Berjaya Hotel Colombo

      Bandaranaike International Airport (CMB)

      • The centre of Colombo is about 20 miles from Bandaranaike International Airport (CMB). After your flight from Phnom Penh International Airport to Colombo has touched down and you've made your way out of the airport, the drive should take about 40 minutes.

      • The trip will take about 1 hour 30 minutes on public transport.

      • Place the 'Do not disturb' sign on your door and rest at a hotel near CMB. Here are a few options where you can check in after your PNH to Colombo flight:

        • Amagi Aria Airport Transit Hotel

        • Coco Villa Peach Tree

        • Erandi Holiday Home

      • Sr Rent A Car, Green Motion and Sixt make picking up a Bandaranaike International Airport rental car easy and quick. These trusted providers are located in or around the terminal and will have you behind the wheel before you know it.

      • Avoid paying extra. Booking your ride two weeks ahead of your arrival at CMB will save you money.

      Best time to go to Colombo

      • Plan your trip to Colombo during the high season if you want a lively atmosphere, but remember that hotel prices tend to be higher. Alternatively, book your flights from Phnom Penh International Airport to Colombo in the low season when prices are cheaper and it's quieter.

      • When booking your Phnom Penh International Airport to Colombo plane ticket, think about the kind of weather forecast you're hoping for. March is the warmest month in Colombo, with temperatures ranging from 24ºC (75ºF) to 33ºC (91ºF).

      • January sees average temperatures of between 22ºC (72ºF) and 32ºC (90ºF). Look for a cheap ticket from PNH to Colombo around that time if you like cooler conditions.

      More about Colombo

      • Start your Colombo trip right by choosing the ideal place to stay. After booking your flight from Phnom Penh International Airport to Colombo, browse our range of hotels including:

        • The Kingsbury Colombo

        • Marino Beach Colombo

        • NH Collection Colombo

      • All great adventures should include some sightseeing. Independence Square & Independence Memorial Hall, Gangaramaya Temple and Viharamahadevi Park are essential stops on your Colombo itinerary.

      Explore more of Sri Lanka

      • You've seen Colombo, now it's time to explore more of Sri Lanka. Travel around 190 miles north to Jaffna to check off its leading attractions. From Jaffna Fort to Dambakola Patuna Sangamitta Temple and Jaffna Public Library, you'll have a full itinerary ahead.

      • If you want to check out another great destination in Sri Lanka, head for Trincomalee, roughly 150 miles north-east of Colombo. Koneswaram Temple, Fort Frederick and Marble Beach are key highlights.

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      Plan the rest of your trip from Phnom Penh to Colombo

      • Car hire in Colombo
      • Hotels in Colombo

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

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