Cheap Flights from Sihanoukville to Phnom Penh starting at S$ 134

We've found these cheap flights for you. You can book one-way or return flight tickets.

Round-trip
One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Cheapest time to fly from Sihanoukville to Phnom Penh

We monitor flight fares to help you find the best deals effortlessly

Cheapest flights

From price

16 23
23 30
Apr

30 6
6 13
13 20
20 27
May

27 4
4 11
11 18
18 25
Jun

25 1
1 8

Displayed prices are calculated based on the lowest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

When to buy flight tickets from Sihanoukville (KOS) to Phnom Penh (PNH) the cheapest?

Airlines adjust prices for flights from Sihanoukville to Phnom Penh based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much is a flight from Sihanoukville (KOS) to Phnom Penh (PNH) cost?

According to Trip.com's data, the lowest price is around S$ 253.
What is the transportation method from the main airport to downtown in Phnom Penh?
- The distance from Phnom Penh International Airport to downtown is about 7km, by taxi about 20 minutes.
What time does the latest flight from Sihanoukville to Phnom Penh depart?

The latest flight departs from Sihanoukville (KOS) at 20:10 and arrives in Phnom Penh (PNH) at 20:50.
What's the most popular airline for direct flights from Sihanoukville (KOS) to Phnom Penh (PNH)?

Cambodia Airways operates 2 direct flights from Sihanoukville (KOS) to Phnom Penh (PNH).
How many airports in Phnom Penh?

There are 1 airports near Phnom Penh: Phnom Penh International Airport.

How to find a cheap flight from Sihanoukville to Phnom Penh

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Sihanoukville to Phnom Penh. Book your flights at the right time and save more.

Choose your dates flexibly and get the best deals on flights from Sihanoukville to Phnom Penh.

Tap 'Date' on the flight search bar to browse the calendar for Sihanoukville to Phnom Penh airfare over the next 6 months in 2025. If you're looking to fly within the next 3 months, the cheapest date seems to be Wed, Apr 30, with one-way flights starting at S$ 134.

Compare cheap flight deals from hundreds of airlines for Sihanoukville to Phnom Penh flights.

Our extensive search lets you compare prices from over 500 airlines to find the cheapest flights from Sihanoukville to Phnom Penh. The cheapest flight at the moment is with Air Cambodia.

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Book early or wait for last-minute deals.

It's always better to book early. Flight tickets are often at their lowest when first released, usually a year ahead of departure. Keep an eye out as soon as your desired flights open for booking. If you miss the early deals, you may still find lower prices closer to your travel date.

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Find cheapest flight ticket from Sihanoukville to Phnom Penh

Cheapest direct flight price	S$ 134
Off-season for travel	January
Peak season for travel	February
Flight distance	170.05km
Popular airline	Air Cambodia