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Cheap Flights from Sihanoukville to Phnom Penh

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Compare Sihanoukville to Phnom Penh flight deals

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

Book the best Phnom Penh fare with no extra fees

Flight deals from Sihanoukville to Phnom Penh

Looking for a cheap last-minute deal or the best return flight from Sihanoukville to Phnom Penh? Find the lowest prices on one-way and return tickets right here.
Phnom Penh.Rs27,370 per passenger.Departing Sat, 10 May.One-way flight with Cambodia Angkor Air.Outbound indirect flight with Cambodia Angkor Air, departs from Sihanoukville on Sat, 10 May, arriving in Phnom Penh.Price includes taxes and charges.From Rs27,370, select.
Phnom Penh.Rs38,178 per passenger.Departing Wed, 3 Sep.One-way flight with Cambodia Angkor Air.Outbound indirect flight with Cambodia Angkor Air, departs from Sihanoukville on Wed, 3 Sep, arriving in Phnom Penh.Price includes taxes and charges.From Rs38,178, select.
Phnom Penh.Rs43,439 per passenger.Departing Sun, 15 Jun.One-way flight with Cambodia Angkor Air.Outbound indirect flight with Cambodia Angkor Air, departs from Sihanoukville on Sun, 15 Jun, arriving in Phnom Penh.Price includes taxes and charges.From Rs43,439, select.
Phnom Penh.Rs43,915 per passenger.Departing Fri, 22 Aug.One-way flight with Cambodia Angkor Air.Outbound indirect flight with Cambodia Angkor Air, departs from Sihanoukville on Fri, 22 Aug, arriving in Phnom Penh.Price includes taxes and charges.From Rs43,915, select.
Phnom Penh.Rs58,553 per passenger.Departing Mon, 9 Feb.One-way flight with Cambodia Angkor Air.Outbound indirect flight with Cambodia Angkor Air, departs from Sihanoukville on Mon, 9 Feb, arriving in Phnom Penh.Price includes taxes and charges.From Rs58,553, select.
Phnom Penh.Rs60,686 per passenger.Departing Thu, 6 Nov.One-way flight with Cambodia Angkor Air.Outbound indirect flight with Cambodia Angkor Air, departs from Sihanoukville on Thu, 6 Nov, arriving in Phnom Penh.Price includes taxes and charges.From Rs60,686, select.
Phnom Penh.Rs61,708 per passenger.Departing Tue, 2 Dec.One-way flight with Cambodia Angkor Air.Outbound indirect flight with Cambodia Angkor Air, departs from Sihanoukville on Tue, 2 Dec, arriving in Phnom Penh.Price includes taxes and charges.From Rs61,708, select.
Phnom Penh.Rs63,880 per passenger.Departing Sat, 3 Jan.One-way flight with Cambodia Angkor Air.Outbound indirect flight with Cambodia Angkor Air, departs from Sihanoukville on Sat, 3 Jan, arriving in Phnom Penh.Price includes taxes and charges.From Rs63,880, select.

Find the cheapest month to fly from Sihanoukville to Phnom Penh

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Sihanoukville to Phnom Penh flights are currently cheapest in May.
May
from Rs27,370
Jun
from Rs43,439
Jul
from Rs70,268
Aug
from Rs43,915
Sep
from Rs38,178
Oct
from Rs80,809
Nov
from Rs60,686
Dec
from Rs61,708
Jan
from Rs63,880
Feb
from Rs58,553
Mar
from Rs105,473
Apr
Find prices

Sihanoukville to Phnom Penh: Alternative routes

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

Sihanoukville to Phnom Penh: Flight information

The things to know before you go.
Cheapest flight foundRs27,370
Cheapest month to flyMay

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

The best price we found for a return flight from Sihanoukville to Phnom Penh is Rs112,947. 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 Sihanoukville to Phnom Penh. But we found flights with one or more stops from Rs112,947.
As of May 2025, there are no flights flying from Sihanoukville to Phnom Penh.
The cheapest month to fly from Sihanoukville to Phnom Penh is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Sihanoukville Airport to Phnom Penh Airport on Friday, 2 May 2025.
No airlines currently offer direct flights between Sihanoukville Airport and Phnom Penh Airport. Most routes have one or more stops.
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, Cambodia Angkor Air offers the cheapest flight tickets to Phnom Penh.

Travelling from Sihanouk International Airport (KOS) to Phnom Penh International Airport (PNH): what you need to know

  • Sihanoukville and Phnom Penh are both in the UTC+7 timezone. This means there's no time difference to adjust for.

  • Get to the airport on time so you don't miss your KOS to PNH flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid any last-minute rush.

  • Flying during a peak time such as January? Major public holidays and other high seasons can lead to longer queues and delays at check-in and security. Play things extra safe and get there up to four hours ahead of international flights and two hours before a domestic departure.

  • We make it easy to book a flight with a stopover. To see your options for tickets from Sihanouk International Airport to Phnom Penh International Airport, deselect 'Direct flights only.' Then, choose a flight with a stop long enough to tour your chosen city. Some great stopovers between KOS and PNH include:

    • Tan Son Nhat International Airport

    • Kuala Lumpur International Airport

    • Siem Reap-Ankor International Airport

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

  • Rs27,370 is the best price for a one-way Sihanouk International Airport to Phnom Penh International Airport flight. Return flights start at Rs112,947. These fares can change depending on demand.

  • It's often best to book ahead of time if you want to find cheap tickets from KOS to PNH. That's because flight prices are based on demand, which tends to increase closer to departure.

  • The 'Whole month' search tool shows you the cheapest flights from Sihanouk International Airport to Phnom Penh International Airport throughout the month. It's a good way to snap up a bargain if your plans are flexible.

  • Spend less time searching for cheap flights from KOS to PNH by setting up a Price Alert. You'll get an email or notification on the app when a new low fare is offered.

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

Handy information about Sihanouk International Airport (KOS)

  • Of the departures from Sihanouk International Airport, 78.65% touch down on time at their destination.

  • Central Sihanoukville to Sihanouk International Airport is approximately 24 kilometres. Depending on traffic, it'll take you about 45 minutes to get there if you're driving, catching a cab or ride-sharing.

  • Spending the night in a hotel can take the hassle out of getting to the airport on time. If you need a place to stay before your flight from Sihanouk International Airport to Phnom Penh International Airport, check out Sok Sabay Resort. It's a short drive from KOS.

Arriving at Phnom Penh International Airport (PNH)

  • Reserve a hotel near PNH if you're on a late Sihanouk International Airport to Phnom Penh International Airport flight. Pick one of these accommodation options and make your arrival easier:

  • Hit the road running 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.

  • Reserving your vehicle from Phnom Penh International Airport about one week ahead increases your chances of getting a good deal.

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

  • Phnom Penh International Airport is approximately 11 kilometres from the centre of Phnom Penh. The drive time takes about 30 minutes.

When to fly to Phnom Penh International Airport (PNH)

  • August is the busiest month for flights from Sihanouk International Airport to Phnom Penh International Airport. To escape the crowds, visit Phnom Penh in February.

  • Book your flight from Sihanouk International Airport to Phnom Penh International Airport for March if you want to visit Phnom Penh during its warmest month. You can expect temperatures of between 23ºC and 38ºC.

  • Search for cheap tickets from KOS to PNH in January if you like cooler conditions. Temperatures are at their lowest then, ranging between 20ºC and 33ºC on average.

Explore more of Cambodia

  • Phnom Penh has loads to offer, but there are so many other corners of Cambodia waiting to be explored. Around 193 kilometres south-west of Phnom Penh, a trip to Sihanoukville will keep you busy. Start with leading sights like Ochheuteal Beach, Wat Leu Temple and Wat Krom Temple.

  • Around 257 kilometres north-west of Phnom Penh, Battambang is another favourite stop in Cambodia. No visit is complete without checking out The Garden of SamDech Sar Kheng, Spean Thmor Chas and សួននាគសន្តិភាព-Dragon Peace Garden.

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Plan the rest of your trip from Sihanoukville to Phnom Penh

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