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Cheap Flights from Samui International to Phnom Penh

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Compare Samui International 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 Samui International to Phnom Penh

Looking for a cheap last-minute deal or the best return flight from Samui International to Phnom Penh? Find the lowest prices on one-way and return tickets right here.
Phnom Penh.272 € per passenger.Departing Sun, 21 Sep, returning Tue, 21 Oct.Return flight with Bangkok Airways and Air Cambodia.Outbound indirect flight with Bangkok Airways, departs from Samui International on Sun, 21 Sep, arriving in Phnom Penh.Inbound indirect flight with Air Cambodia, departs from Phnom Penh on Tue, 21 Oct, arriving in Samui International.Price includes taxes and charges.From 272 €, select.
Phnom Penh.279 € per passenger.Departing Fri, 28 Nov, returning Sun, 30 Nov.Return flight with Bangkok Airways.Outbound indirect flight with Bangkok Airways, departs from Samui International on Fri, 28 Nov, arriving in Phnom Penh.Inbound indirect flight with Bangkok Airways, departs from Phnom Penh on Sun, 30 Nov, arriving in Samui International.Price includes taxes and charges.From 279 €, select.
Phnom Penh.288 € per passenger.Departing Wed, 28 Jan, returning Wed, 4 Feb.Return flight with Bangkok Airways.Outbound indirect flight with Bangkok Airways, departs from Samui International on Wed, 28 Jan, arriving in Phnom Penh.Inbound indirect flight with Bangkok Airways, departs from Phnom Penh on Wed, 4 Feb, arriving in Samui International.Price includes taxes and charges.From 288 €, select.
Phnom Penh.304 € per passenger.Departing Thu, 26 Jun, returning Thu, 3 Jul.Return flight with Bangkok Airways and Sky Angkor.Outbound indirect flight with Bangkok Airways, departs from Samui International on Thu, 26 Jun, arriving in Phnom Penh.Inbound indirect flight with Sky Angkor, departs from Phnom Penh on Thu, 3 Jul, arriving in Samui International.Price includes taxes and charges.From 304 €, select.
Phnom Penh.342 € per passenger.Departing Mon, 16 Jun, returning Mon, 23 Jun.Return flight with Bangkok Airways and Thai VietJet Air.Outbound indirect flight with Bangkok Airways, departs from Samui International on Mon, 16 Jun, arriving in Phnom Penh.Inbound indirect flight with Thai VietJet Air, departs from Phnom Penh on Mon, 23 Jun, arriving in Samui International.Price includes taxes and charges.From 342 €, select.
Phnom Penh.441 € per passenger.Departing Fri, 25 Jul, returning Fri, 1 Aug.Return flight with Bangkok Airways and Thai AirAsia.Outbound indirect flight with Bangkok Airways, departs from Samui International on Fri, 25 Jul, arriving in Phnom Penh.Inbound indirect flight with Thai AirAsia, departs from Phnom Penh on Fri, 1 Aug, arriving in Samui International.Price includes taxes and charges.From 441 €, select.
Phnom Penh.447 € per passenger.Departing Wed, 6 Aug, returning Tue, 19 Aug.Return flight with Bangkok Airways and Thai AirAsia.Outbound indirect flight with Bangkok Airways, departs from Samui International on Wed, 6 Aug, arriving in Phnom Penh.Inbound indirect flight with Thai AirAsia, departs from Phnom Penh on Tue, 19 Aug, arriving in Samui International.Price includes taxes and charges.From 447 €, select.

Find the cheapest month to fly from Samui International to Phnom Penh

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Samui International to Phnom Penh flights are currently cheapest in November.
Jun
from 342 €
Jul
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Aug
from 447 €
Sep
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Oct
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Nov
from 279 €
Dec
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Jan
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Feb
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Mar
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Apr
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May
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Samui International to Phnom Penh: Alternative routes

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

Koh Samui to Phnom Penh: Flight information

The things to know before you go.
Cheapest flight found272 €
Cheapest month to flySeptember

Finding cheap flights from Samui International to Phnom Penh: Frequently asked questions

The best price we found for a return flight from Samui International to Phnom Penh is 272 €. 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 Samui International to Phnom Penh. But we found flights with one or more stops from 272 €.
As of June 2025, there are no flights flying from Samui International to Phnom Penh.
The cheapest month to fly from Samui International to Phnom Penh is usually June 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Samui International Airport to Phnom Penh Airport on Sunday, 21 September 2025.
No airlines currently offer direct flights between Samui International Airport and Phnom Penh 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 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.
Currently, Bangkok Airways offers the cheapest flight tickets to Phnom Penh.

Travelling from Koh Samui Airport (USM) to Phnom Penh International Airport (PNH): what you need to know

  • Phnom Penh's timezone is UTC+7, which is the same as Koh Samui.

  • 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 plenty of time to board your USM to PNH flight.

  • Travelling during a peak month like July? School holidays and other high seasons can mean longer queues and delays at airport checkpoints. Be extra cautious and arrive up to four hours before international flights and two hours before domestic departures.

How to find the cheapest flights from Koh Samui Airport (USM) to Phnom Penh International Airport (PNH)

  • Currently, 121 € is the lowest price we've found for a one-way Koh Samui Airport to Phnom Penh International Airport flight. The best price for a return plane ticket is 272 €. Bear in mind that fares can change due to availability at the time of booking.

  • To get your hands on cheap tickets from USM to PNH, book as early as you can. Airlines tend to offer the most competitive fares when flights are first released.

  • If you can be flexible with your travel plans, try using the 'Whole month' search tool. It'll give you the lowest price in each month when searching for your flight from Koh Samui Airport to Phnom Penh International Airport.

  • Save time looking for cheap flights from USM to PNH by setting up a Price Alert. You'll receive an email or push notification on the app when a new discounted fare appears.

  • Choose your ideal arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to find the best deals on flights from Koh Samui Airport to Phnom Penh International Airport.

Handy information about Koh Samui Airport (USM)

  • When it comes to Koh Samui Airport's on-time performance, 69.38% of flights stick to their scheduled arrival time.

  • The journey from central Koh Samui to Koh Samui Airport is about 3 kilometres. Check out travel apps like Google Maps for the best route, whether that's in your own car or with public transport.

  • Get your trip off to a hassle-free start by staying near USM. Whether you've booked an early flight from Koh Samui Airport to Phnom Penh International Airport or just don't like being rushed, these stays are perfect:

Arriving at Phnom Penh International Airport (PNH)

  • The last thing you need is a long trip to your hotel if you're arriving on a late Koh Samui Airport to Phnom Penh International Airport flight. Book one of these accommodation options near PNH instead:

  • Travel at your own pace with a Phnom Penh International Airport rental car. Pick up your wheels from Europcar, Avis or Budget and discover more of Phnom Penh and beyond.

  • Lock in the lowest price by reserving your ride from Phnom Penh International Airport around one week ahead of your departure.

Getting from Phnom Penh International Airport (PNH) to central Phnom Penh

  • From Phnom Penh International Airport, Phnom Penh is approximately 11 kilometres away. It takes around 30 minutes to reach the centre driving.

When to fly to Phnom Penh International Airport (PNH)

  • The quietest month for a flight from Koh Samui Airport to Phnom Penh International Airport is February, while August is the most popular. Pick the ideal time to go to Phnom Penh based on whether you prefer a faster pace or a more relaxed vibe.

  • Book your flight from Koh Samui Airport to Phnom Penh International Airport for March if you'd like to go to Phnom Penh during its warmest month. You can expect temperatures of between 23ºC (73ºF) and 38ºC (100ºF).

  • January sees average temperatures of between 20ºC (68ºF) and 33ºC (91ºF). Look for cheap tickets from USM to PNH sometime around then if you want to travel when it's cooler.

Explore more of Cambodia

  • Sihanoukville is just one of the many places in Cambodia waiting to be discovered once you've seen the sights of Phnom Penh. Around 193 kilometres away to the south-west, well-known attractions include Ochheuteal Beach, Wat Leu Temple and Wat Krom Temple.

  • Around 257 kilometres north-west of Phnom Penh, Battambang is another favourite stop in Cambodia. Experience major highlights starting with The Garden of SamDech Sar Kheng, Spean Thmor Chas and សួននាគសន្តិភាព-Dragon Peace Garden.

Plan the rest of your trip from Koh Samui to Phnom Penh

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