Cheap Flights from Cairns (CNS) to Siem Reap (SAI)

Compare Cairns to Siem Reap–Angkor flight deals

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

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Flight deals from Cairns to Siem Reap–Angkor

Looking for a cheap last-minute deal or the best return flight from Cairns to Siem Reap–Angkor ? Find the lowest prices on one-way and return tickets right here.

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

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Cairns to Siem Reap–Angkor flights are currently cheapest in November.

Cairns to Siem Reap–Angkor : Alternative routes

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

Cairns to Siem Reap: Flight information

The things to know before you go.
Cheapest flight found$899
Cheapest month to flyNovember

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

The best price we found for a return flight from Cairns to Siem Reap–Angkor is $899. 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 Cairns to Siem Reap–Angkor . But we found flights with one or more stops from $899.
As of July 2025, there are no flights flying from Cairns to Siem Reap–Angkor .
The cheapest month to fly from Cairns to Siem Reap–Angkor is usually November.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Cairns Airport to Siem Reap–Angkor Airport on Tuesday, 11 November 2025.
No airlines currently offer direct flights between Cairns Airport 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.
Currently, Jetstar offers the cheapest flight tickets to Siem Reap–Angkor .

Travelling from Cairns Airport (CNS) to Siem Reap-Ankor International Airport (SAI): what you need to know

  • The timezone in Siem Reap is UTC+7, which is three hours behind Cairns.

  • To ensure you catch your CNS to SAI flight, allow plenty of time for things like baggage drop and finding your gate. Turning up two hours ahead of international departures and one hour before domestic flights is the general rule.

  • Flying during a peak month like July? School holidays and other popular periods can mean longer lines and delays at security. Play it safe and get there up to four hours ahead of international flights and two hours before domestic departures.

  • Pick a stopover if you prefer to break up your flight. Simply deselect 'Direct flights only' to see all your options for tickets from Cairns Airport to Siem Reap-Ankor International Airport. Changi International Airport is a popular stopover on the CNS to SAI route.

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

  • Right now, $770 is the lowest price we've found for a one-way Cairns Airport to Siem Reap-Ankor International Airport flight. The best price for a return ticket is $899. Keep in mind that fares could change due to availability at the time of booking.

  • To score cheap tickets from CNS to SAI, book as early as you can. Airlines usually offer lower fares when flights are first released.

  • The 'Whole month' tool shows you the cheapest flights from Cairns Airport to Siem Reap-Ankor International Airport across the month. It's an easy way to snap up a bargain if your trip dates are flexible.

  • You don't need to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll let you know the moment a special offer becomes available on cheap flights from CNS to SAI.

  • Tailor your flights with filters. Pick your ideal arrival and departure times, airlines and total journey duration. You can also sort the results by 'Cheapest,' 'Fastest' or 'Best' flights from Cairns Airport to Siem Reap-Ankor International Airport.

Handy information about Cairns Airport (CNS)

  • Of all flights leaving Cairns Airport, 71.55% land on time at their destination.

  • Cairns Airport is around 6 kilometres from central Cairns. If you're catching a cab, ride-sharing or driving from the centre, it'll take 10 minutes or so to get there, depending on the traffic.

  • The trip on public transport usually takes 1 hour 25 minutes.

  • Get your journey off to a relaxed start by staying near CNS. Whether you've booked an early flight from Cairns Airport to Siem Reap-Ankor International Airport or just don't like being rushed, these hotels are the answer:

Arriving at Siem Reap-Ankor International Airport (SAI)

  • After your Cairns Airport to Siem Reap-Ankor International Airport flight has touched down, unwind at a hotel close by. Chansor Community Homestay 18 is a comfortable option within easy reach of SAI.

Getting from Siem Reap-Ankor International Airport (SAI) to central Siem Reap

  • Siem Reap-Ankor International Airport to central Siem Reap has a drive time of about 1 hour. It's approximately 48 kilometres away.

When to fly to Siem Reap-Ankor International Airport (SAI)

  • The quietest month for a flight from Cairns Airport to Siem Reap-Ankor International Airport is April, while April is the most popular. Choose the best time to visit Siem Reap based on whether you prefer a faster pace or a more relaxed vibe.

  • The warmest month in Siem Reap is March, with temperatures ranging between 22ºC (72ºF) and 38ºC (100ºF). Lock in your flights from Cairns Airport to Siem Reap-Ankor International Airport in this month if this is the type of weather you like.

  • January has average temperatures of between 18ºC (64ºF) and 33ºC (91ºF). Search for cheap tickets from CNS to SAI sometime then if you'd rather travel in cooler conditions.

Explore more of Cambodia

  • Phnom Penh is just one of the many places in Cambodia waiting to be discovered after you've seen Siem Reap. Around 225 kilometres away to the south-east, well-known attractions include Royal Palace, Tuol Sleng Genocide Museum and Wat Phnom.

  • Sihanoukville is another sought-after destination in Cambodia and is around 306 kilometres south of Siem Reap. No trip is complete without seeing Ochheuteal Beach, Wat Leu Temple and Wat Krom Temple.

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