Skyscanner

349 € Cheap Flights from Colombo to Siem Reap–Angkor

Compare Colombo to Siem Reap–Angkor flight deals

Find the cheapest month or even day of the year to fly to Siem Reap–Angkor

Book the best Siem Reap–Angkor fare with no extra fees

Flight deals from Colombo to Siem Reap–Angkor

Looking for a cheap last-minute deal or the best return flight from Colombo to Siem Reap–Angkor ? Find the lowest prices on one-way and return tickets right here.
Siem Reap.349 € per passenger.Departing Wed, 14 Jan, returning Fri, 23 Jan.Return flight with AirAsia and AirAsia Cambodia.Outbound indirect flight with AirAsia, departs from Colombo Bandaranayake on Wed, 14 Jan, arriving in Siem Reap–Angkor .Inbound indirect flight with AirAsia Cambodia, departs from Siem Reap–Angkor on Fri, 23 Jan, arriving in Colombo Bandaranayake.Price includes taxes and charges.From 349 €, select.
Siem Reap.354 € per passenger.Departing Tue, 14 Oct, returning Fri, 7 Nov.Return flight with AirAsia and AirAsia Cambodia.Outbound indirect flight with AirAsia, departs from Colombo Bandaranayake on Tue, 14 Oct, arriving in Siem Reap–Angkor .Inbound indirect flight with AirAsia Cambodia, departs from Siem Reap–Angkor on Fri, 7 Nov, arriving in Colombo Bandaranayake.Price includes taxes and charges.From 354 €, select.
Siem Reap.358 € per passenger.Departing Fri, 15 Aug, returning Thu, 28 Aug.Return flight with AirAsia and AirAsia Cambodia.Outbound indirect flight with AirAsia, departs from Colombo Bandaranayake on Fri, 15 Aug, arriving in Siem Reap–Angkor .Inbound indirect flight with AirAsia Cambodia, departs from Siem Reap–Angkor on Thu, 28 Aug, arriving in Colombo Bandaranayake.Price includes taxes and charges.From 358 €, select.
Siem Reap.358 € per passenger.Departing Tue, 2 Sep, returning Mon, 15 Sep.Return flight with AirAsia and Thai AirAsia.Outbound indirect flight with AirAsia, departs from Colombo Bandaranayake on Tue, 2 Sep, arriving in Siem Reap–Angkor .Inbound indirect flight with Thai AirAsia, departs from Siem Reap–Angkor on Mon, 15 Sep, arriving in Colombo Bandaranayake.Price includes taxes and charges.From 358 €, select.
Siem Reap.363 € per passenger.Departing Sun, 31 Aug, returning Mon, 15 Sep.Return flight with AirAsia and Thai AirAsia.Outbound indirect flight with AirAsia, departs from Colombo Bandaranayake on Sun, 31 Aug, arriving in Siem Reap–Angkor .Inbound indirect flight with Thai AirAsia, departs from Siem Reap–Angkor on Mon, 15 Sep, arriving in Colombo Bandaranayake.Price includes taxes and charges.From 363 €, select.
Siem Reap.368 € per passenger.Departing Thu, 20 Nov, returning Wed, 26 Nov.Return flight with Thai AirAsia and AirAsia Cambodia.Outbound indirect flight with Thai AirAsia, departs from Colombo Bandaranayake on Thu, 20 Nov, arriving in Siem Reap–Angkor .Inbound indirect flight with AirAsia Cambodia, departs from Siem Reap–Angkor on Wed, 26 Nov, arriving in Colombo Bandaranayake.Price includes taxes and charges.From 368 €, select.
Siem Reap.385 € per passenger.Departing Thu, 25 Sep, returning Thu, 9 Oct.Return flight with AirAsia and AirAsia Cambodia.Outbound indirect flight with AirAsia, departs from Colombo Bandaranayake on Thu, 25 Sep, arriving in Siem Reap–Angkor .Inbound indirect flight with AirAsia Cambodia, departs from Siem Reap–Angkor on Thu, 9 Oct, arriving in Colombo Bandaranayake.Price includes taxes and charges.From 385 €, select.
Siem Reap.388 € per passenger.Departing Sat, 24 Jan, returning Sat, 7 Feb.Return flight with AirAsia and Thai AirAsia.Outbound indirect flight with AirAsia, departs from Colombo Bandaranayake on Sat, 24 Jan, arriving in Siem Reap–Angkor .Inbound indirect flight with Thai AirAsia, departs from Siem Reap–Angkor on Sat, 7 Feb, arriving in Colombo Bandaranayake.Price includes taxes and charges.From 388 €, select.

Find the cheapest month to fly from Colombo to Siem Reap–Angkor

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Colombo to Siem Reap–Angkor flights are currently cheapest in January.
Jul
Find prices
Aug
from 358 €
Sep
from 358 €
Oct
Find prices
Nov
from 368 €
Dec
from 499 €
Jan
from 349 €
Feb
Find prices
Mar
Find prices
Apr
Find prices
May
Find prices
Jun
Find prices

Colombo to Siem Reap–Angkor : Alternative routes

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

Colombo to Siem Reap: Flight information

The things to know before you go.
Cheapest flight found349 €
Cheapest month to flyJanuary

Finding cheap flights from Colombo to Siem Reap–Angkor : Frequently asked questions

The best price we found for a return flight from Colombo to Siem Reap–Angkor is 349 €. 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 Colombo to Siem Reap–Angkor . But we found flights with one stop from 349 €.
As of July 2025, there are no flights flying from Colombo to Siem Reap–Angkor .
The cheapest month to fly from Colombo to Siem Reap–Angkor is usually January.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Colombo to Siem Reap–Angkor Airport on Wednesday, 14 January 2026.
No airlines currently offer direct flights between Colombo and Siem Reap–Angkor Airport. 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 Siem Reap–Angkor 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 Siem Reap is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Siem Reap–Angkor is AirAsia .

Flying from Colombo to Siem Reap-Ankor International Airport (SAI): What you need to know

  • Bandaranaike International Airport (CMB) is Colombo's main airport. Check out your options for reserving a flight from Colombo to Siem Reap-Ankor International Airport (SAI) jetting off from here.

  • The timezone in Siem Reap is UTC+7, which is one hour 30 minutes ahead of Colombo. Siem Reap-Ankor International Airport is located in Siem Reap.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to catch your flight from Colombo to SAI.

  • Planning to travel during a peak period like public or school holidays? Expect longer queues at security and check-in. To give yourself peace of mind, arrive up to four hours before international flights and two hours before domestic departures.

Airports in Colombo

Colombo Ratmalana Airport (RML)

  • Travelling from central Colombo to RML takes about 1 hour 15 minutes on public transport. If you drive, ride-share or get a cab, you'll cover the 16 kilometres in 40 minutes or so, depending on traffic conditions.

  • Want an easy start to your travels? Stay near Colombo Ratmalana Airport. Whether you have an early flight from Colombo to Siem Reap-Ankor International Airport or aren't a fan of being rushed, these hotels are the ideal choice:

Bandaranaike International Airport (CMB)

  • Maximise your holiday with a stopover on your flight from Colombo to Siem Reap-Ankor International Airport. Check out these connections between Bandaranaike International Airport and SAI:

    • Kuala Lumpur International Airport (KUL)

    • Suvarnabhumi Airport (BKK)

    • Changi International Airport (SIN)

  • You can reach CMB from the centre of Colombo in about 40 minutes by car, depending on traffic conditions. The ride by public transport takes roughly 1 hour 30 minutes to travel the 32 kilometres or so.

  • Start your holiday sooner with an additional night away from home. Before your Colombo to SAI flight, stay in one of these hotels near Bandaranaike International Airport:

  • When it comes to flight punctuality, Bandaranaike International Airport has an on-time arrival rate of 75.71%.

About Siem Reap-Ankor International Airport (SAI)

  • Coming in on a late flight from Colombo to Siem Reap-Ankor International Airport? Don't let it rob you of real rest. Stay within easy reach of SAI at Chansor Community Homestay 18.

How to find the cheapest flights from Colombo to Siem Reap-Ankor International Airport (SAI)

  • Right now, 169 € is the best price we've found for a one-way ticket from Colombo to Siem Reap-Ankor International Airport. The cheapest price for a return flight is 349 €. Keep in mind fares may change due to demand at the time of booking.

  • Booking early is often the key to finding a cheap flight from Colombo to SAI. Prices tend to rise as demand increases, so the closer you get to departure, the more expensive your ticket may be.

  • The 'Whole month' search tool shows you the cheapest Colombo to Siem Reap-Ankor International Airport tickets across each month. It's a great way to snap up a bargain if your travel dates are flexible.

  • You don't need to check every day to find out if fares have dropped when you set up a Price Alert. We'll notify you the moment a new deal shows up on plane tickets from Colombo to SAI.

  • Hunt down a great price on a flight from Colombo to Siem Reap-Ankor International Airport with the help of the filters. Choose your preferred arrival and departure times, number of stops and airlines. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest.'

The best time to fly from Colombo to Siem Reap-Ankor International Airport (SAI)

  • August is the most popular month for flights from Colombo to Siem Reap-Ankor International Airport (SAI). Plan your visit to Siem Reap in April for a more low-key escape.

  • Lock in a Colombo to SAI plane ticket departing in March if you're eager to experience the city during its warmest month. Expect temperatures in Siem Reap to range from 22ºC (72ºF) to 38ºC (100ºF).

  • Look for cheap tickets from Colombo to Siem Reap-Ankor International Airport in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 18ºC (64ºF) and 33ºC (91ºF).

More about Siem Reap

Explore more of Cambodia

  • Phnom Penh is just one of the many places in Cambodia waiting to be discovered once you've taken in the sights of Siem Reap. Around 209 kilometres away to the south, its best attractions include Royal Palace, Tuol Sleng Genocide Museum and Genocide museum.

  • Around 225 kilometres south of Siem Reap, Ta Khmau is another essential stop in Cambodia. Start your sightseeing at មាត់ទន្លេតាខ្មៅ - Ta Khmao Riverside, Statue of Ta Khmau and AV.

Plan the rest of your trip from Colombo to Siem Reap

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