Cheap Flights from Bangkok to Phnom Penh

Compare Bangkok to Phnom Penh flight deals

Find the cheapest month or even day of the year to fly to Phnom Penh

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Flight deals from Bangkok to Phnom Penh

Looking for a cheap last-minute deal or the best return flight from Bangkok to Phnom Penh? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Bangkok to Phnom Penh

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Bangkok to Phnom Penh flights are currently cheapest in August.

Direct flights from Bangkok to Phnom Penh

Bangkok to Phnom Penh: Alternative routes

Compare routes from Bangkok to Phnom Penh below. You may find an airport to fly into that's cheaper, faster, or easier than Phnom Penh.

Bangkok to Phnom Penh: Flight information

The things to know before you go.
Cheapest flight foundR 734
Cheapest month to flyAugust
Average flight time1 hr, 15 mins
Most popular airlineThai VietJet Air
Average flights per week80

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

The best price we found for a return flight from Bangkok to Phnom Penh is R 1,835. 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.
1 hour and 14 minutes is the average flight time from Bangkok to Phnom Penh.
Thai VietJet Air, Sky Angkor and Hahn Air Systems fly direct from Bangkok to Phnom Penh.
As of August 2025, there are 90 flights per week flying from Bangkok to Phnom Penh.
The cheapest month to fly from Bangkok to Phnom Penh is usually August.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Bangkok to Phnom Penh Airport on Thursday, 28 August 2025.
Yes – the average flight time is 1 hour and 14 minutes.
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 Phnom Penh 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 Phnom Penh is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Phnom Penh is Thai VietJet Air .

Flying from Bangkok to Phnom Penh International Airport (PNH): What you need to know

  • There are a couple of main airports you can take off from in Bangkok. Explore your options departing from Suvarnabhumi Airport (BKK) or Don Mueang International Airport (DMK) when reserving your flight from Bangkok to Phnom Penh International Airport (PNH).

  • Around 1 hour 15 minutes is how long you can expect to be in the air on a direct Bangkok to Phnom Penh International Airport flight.

  • Phnom Penh (where Phnom Penh International Airport is located) and Bangkok share the UTC+7 timezone. You can plan your trip without factoring in timezone differences.

  • With 83 direct weekly flights between the two airports, Suvarnabhumi Airport (BKK) to Phnom Penh International Airport (PNH) is the busiest route. Bangkok Airways operates the earliest flight at 7:20am. If you're eager to make the most of your day before flying, the latest departure from BKK to PNH is with Air Bishkek at 9:25pm.

  • Arrive at the airport on time so you don't miss your flight from Bangkok to PNH. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid the mad dash to your gate.

  • Delays at security and check-in are more likely if you're heading away during high season, so give yourself a little extra breathing room. The recommendation for peak times? Arrive up to four hours early for international flights and two hours for domestic departures.

Airports in Bangkok

Suvarnabhumi Airport (BKK)

  • Suvarnabhumi Airport (BKK) is a convenient option for travelling directly to your destination. Nonstop flights from Bangkok to Phnom Penh International Airport (PNH) depart from this terminal.

  • Numerous airlines at BKK operate direct flights from Bangkok to Phnom Penh International Airport. The most popular include:

  • The top choice among passengers flying between BKK and PNH is Bangkok Airways.

  • The most punctual carrier on this route is Bangkok Airways. Its services land without delay 76.67% of the time.

  • Located around 32 kilometres from the centre of Bangkok, BKK can be reached in about 35 minutes by car (depending on traffic). The journey on public transport will take roughly 1 hour 5 minutes.

  • Catching an early flight from Bangkok to Phnom Penh International Airport? Avoid the mad dash to the terminal (and get some bonus sleep) by picking one of these hotels near Suvarnabhumi Airport:

  • When it comes to Suvarnabhumi Airport's on-time performance, data shows 67.87% of flights stick to their scheduled arrival time.

Don Mueang International Airport (DMK)

  • You can book a direct Bangkok to Phnom Penh International Airport (PNH) plane ticket with departures from Don Mueang International Airport (DMK). Figure out if flying from DMK works better for your plans.

  • Thai AirAsia operates direct flights from Bangkok to PNH leaving from DMK. Book your favourite seat and arrive at your destination in a single stretch.

  • Thai AirAsia is the top choice for passengers flying from DMK to PNH.

  • Among the carriers operating flights between Don Mueang International Airport and Phnom Penh International Airport, Thai AirAsia has the best record for on-time arrivals.

  • DMK is about 27 kilometres from central Bangkok. It'll take 30 minutes or so to get to the airport by car from the city centre. Public transport takes roughly 1 hour 5 minutes.

  • Get a head start on your holiday with an extra night away from home. Before catching your Bangkok to PNH flight, unwind in one of these hotels near Don Mueang International Airport:

  • Don Mueang International Airport has an on-time performance of 66.48%. This figure gives an insight into how often flights that leave from this airport land at their destination on schedule.

About Phnom Penh International Airport (PNH)

  • Have a late flight from Bangkok to Phnom Penh International Airport? Don't let your travel day stretch into tomorrow. Stay at one of these hotels near PNH and turn in quicker:

  • Begin your adventure by picking up a Phnom Penh International Airport rental car. Grab a set of wheels from Europcar, Avis or Budget and explore beyond Phnom Penh's main sights.

  • Lock in the best deal by booking your ride around one week before your Bangkok to Phnom Penh International Airport flight.

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

  • The lowest price we've found for a one-way ticket from Bangkok to Phnom Penh International Airport is R 734. For a return flight on this route, the best price is R 1,835. Depending on the availability when you book, these fares may change.

  • Don't leave everything to the last minute. You're more likely to find cheap flights from Bangkok to PNH if you book ahead. Airlines often offer some excellent early bird deals.

  • Cheap Bangkok to Phnom Penh International Airport tickets are easier to find when you have flexibility in your schedule. Try using the 'Whole month' search tool to compare fares across the month and then pick the cheapest day.

  • Spend less time searching for cheap plane tickets from Bangkok to PNH by setting up a Price Alert. We'll send you an email or push notification on the app when a lower fare becomes available.

  • Filters make it easier to find a bargain for your flight from Bangkok to Phnom Penh International Airport. Choose the flight times, carriers and stops that work for you. Then sort the results by 'Cheapest' to bring up the lowest fares right away.

The best time to fly from Bangkok to Phnom Penh International Airport (PNH)

  • It's time to decide when to book your flight from Bangkok to Phnom Penh International Airport (PNH). August is the busiest month to visit Phnom Penh. If a slower pace sounds more appealing, head there in February.

  • Before locking in your Bangkok to PNH plane ticket, consider the kind of weather you prefer. March is the warmest month in Phnom Penh, with temperatures ranging from 23ºC (73ºF) to 38ºC (100ºF).

  • If you want to travel in cooler conditions, search for a cheap ticket from Bangkok to Phnom Penh International Airport in January when temperatures are between 20ºC (68ºF) and 33ºC (91ºF).

More about Phnom Penh

  • When it comes to looking for somewhere to lay your head, you'll find the best stays in Phnom Penh right here. Explore these hotels once you've booked your flight from Bangkok to Phnom Penh International Airport:

  • Your visit to Phnom Penh should come with a bit of sightseeing. Highlights you won't want to miss include Royal Palace, Tuol Sleng Genocide Museum and Genocide museum.

Explore more of Cambodia

  • You've seen Phnom Penh, now it's time to discover other corners of Cambodia. Journey about 177 kilometres south-west to Sihanoukville to check off its top sights. From Sokha Beach to Ochheuteal Beach and Pantai Ou Chheuteal, you've got a jam-packed schedule ahead.

  • Battambang is another must-experience destination in Cambodia and is around 241 kilometres north-west of Phnom Penh. No journey is complete without seeing Phare Ponleu Selpak, Battambang Day Tour and Phnom Sampeau.

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