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

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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.

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 April.

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 found320 €
Cheapest month to flyApril

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 320 €. 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 320 €.
As of February 2025, there are no flights flying from Sihanoukville to Phnom Penh.
The cheapest month to fly from Sihanoukville to Phnom Penh is usually February 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 Tuesday, 8 April 2025.
No airlines currently offer direct flights between Sihanoukville 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, Cambodia Angkor Air offers the cheapest flight tickets to Phnom Penh.

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

  • Flying during a popular month like August? Public holidays and other high seasons can lead to longer queues and delays at checkpoints. Be extra cautious and arrive up to four hours ahead of international flights and two hours before a domestic departure.

  • If you want a stopover for your flight from Sihanouk International Airport to Phnom Penh International Airport, simply deselect 'Direct flights only' and explore your options. Here are the popular stopovers between KOS and PNH:

    • Tan Son Nhat International Airport

    • Kuala Lumpur International Airport

    • Siem Reap-Ankor International Airport

  • No need to bring your passport or a visa for travel within Cambodia. You will need a valid identity document though, such as an ID card or driver's license. Put them on your packing list once you've booked cheap ticket from KOS to PNH.

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

  • The lowest price we've found for a one-way ticket from Sihanouk International Airport to Phnom Penh International Airport is 139 €. For a return flight on this route, the best price is 320 €. Depending on the availability and when you book, these fares may change.

  • Don't wait until the last minute. You're more likely to find cheap tickets from KOS to PNH if you book ahead. Airlines often offer some great early bird discounts.

  • Finding cheap tickets from Sihanouk International Airport to Phnom Penh International Airport is more likely if you can be flexible with your trip dates. Use the 'Whole month' function to see the lowest fares across the month and land a great deal.

  • Log into your online account or use the app to create a Price Alert. You'll get notified straight away if there's a cheaper deal on this route. It's simple to do, and it'll save you time searching for cheap tickets from KOS to PNH every day.

  • Use filters to find the perfect trip for you. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Sihanouk International Airport to Phnom Penh International Airport, use the 'Sort by' function. You can also filter by arrival and departure times, airline, and number of stops.

Handy information about Sihanouk International Airport (KOS)

  • Sihanouk International Airport is approximately 24 kilometres from central Sihanoukville. If you're driving, ride-sharing or catching a cab from the centre, it'll take 45 minutes or so to arrive, depending on the traffic.

  • Get your flight from Sihanouk International Airport to Phnom Penh International Airport off to a stress-free start. Only a short drive from KOS, spend the night in Sihanouk City View Condominium and you'll be well-rested for the trip ahead.

Arriving at Phnom Penh International Airport (PNH)

  • If you're arriving on a late flight from Sihanouk International Airport to Phnom Penh International Airport, nothing tops the convenience of staying close to the terminal. Grab your bags from the carousel and then be showered and sleeping soon after at one of these hotels near PNH:

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 get to the centre driving.

When to fly to Phnom Penh International Airport (PNH)

  • It's time to plan your dates for your flight from Sihanouk International Airport to Phnom Penh International Airport. August is the busiest month to visit Phnom Penh. If you want a more relaxed vibe, go in February.

  • When booking your flight from Sihanouk International Airport to Phnom Penh International Airport, think about the type of weather you like. March is the warmest month in Phnom Penh, with the temperature ranging from 23ºC to 38ºC.

  • Look for cheap tickets from KOS to PNH in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 20ºC and 33ºC on average.

More about Phnom Penh

  • When it comes to looking for somewhere to rest your head, you'll find the most popular stays in Phnom Penh right here. Explore these options after locking in your flight from KOS to PNH:

  • All great journeys should include a little sightseeing. Royal Palace, Tuol Sleng Genocide Museum and Wat Phnom are attractions you won't want to skip in Phnom Penh.

Complete your Phnom Penh trip with hotels and a car rental

  • Comparing flights is not the only thing we do. Once you've secured your cheap ticket to Phnom Penh International Airport, check out our great car rental deals that'll give you the freedom and flexibility to see the sights at your own pace. Next, take a look at our exclusive rates for hotels to find the ideal Phnom Penh stay.

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