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Cheap Flights from Hong Kong (HKG) to Phnom Penh (PNH)

Compare Hong Kong Intl 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 Hong Kong Intl to Phnom Penh

Looking for a cheap last-minute deal or the best return flight from Hong Kong Intl to Phnom Penh? Find the lowest prices on one-way and return tickets right here.
Phnom Penh.$320 per passenger.Departing Sat, 23 Aug, returning Sat, 30 Aug.Return flight with Cambodia Airways.Outbound direct flight with Cambodia Airways departs from Hong Kong Intl on Sat, 23 Aug, arriving in Phnom Penh.Inbound direct flight with Cambodia Airways departs from Phnom Penh on Sat, 30 Aug, arriving in Hong Kong Intl.Price includes taxes and charges.From $320, select.
Phnom Penh.$332 per passenger.Departing Thu, 11 Sep, returning Mon, 15 Sep.Return flight with Cambodia Airways.Outbound direct flight with Cambodia Airways departs from Hong Kong Intl on Thu, 11 Sep, arriving in Phnom Penh.Inbound direct flight with Cambodia Airways departs from Phnom Penh on Mon, 15 Sep, arriving in Hong Kong Intl.Price includes taxes and charges.From $332, select.
Phnom Penh.$378 per passenger.Departing Mon, 12 Jan, returning Sat, 17 Jan.Return flight with HK Express and Thai AirAsia.Outbound indirect flight with HK Express, departs from Hong Kong Intl on Mon, 12 Jan, arriving in Phnom Penh.Inbound indirect flight with Thai AirAsia, departs from Phnom Penh on Sat, 17 Jan, arriving in Hong Kong Intl.Price includes taxes and charges.From $378, select.
Phnom Penh.$386 per passenger.Departing Mon, 13 Oct, returning Tue, 11 Nov.Return flight with Cambodia Airways and Thai AirAsia.Outbound indirect flight with Cambodia Airways, departs from Hong Kong Intl on Mon, 13 Oct, arriving in Phnom Penh.Inbound indirect flight with Thai AirAsia, departs from Phnom Penh on Tue, 11 Nov, arriving in Hong Kong Intl.Price includes taxes and charges.From $386, select.
Phnom Penh.$391 per passenger.Departing Sat, 30 Aug, returning Mon, 1 Sep.Return flight with HK Express and Thai VietJet Air.Outbound indirect flight with HK Express, departs from Hong Kong Intl on Sat, 30 Aug, arriving in Phnom Penh.Inbound indirect flight with Thai VietJet Air, departs from Phnom Penh on Mon, 1 Sep, arriving in Hong Kong Intl.Price includes taxes and charges.From $391, select.
Phnom Penh.$393 per passenger.Departing Sat, 9 May, returning Wed, 20 May.Return flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Hong Kong Intl on Sat, 9 May, arriving in Phnom Penh.Inbound indirect flight with Thai AirAsia, departs from Phnom Penh on Wed, 20 May, arriving in Hong Kong Intl.Price includes taxes and charges.From $393, select.
Phnom Penh.$397 per passenger.Departing Wed, 8 Oct, returning Sun, 12 Oct.Return flight with HK Express and Cambodia Airways.Outbound indirect flight with HK Express, departs from Hong Kong Intl on Wed, 8 Oct, arriving in Phnom Penh.Inbound indirect flight with Cambodia Airways, departs from Phnom Penh on Sun, 12 Oct, arriving in Hong Kong Intl.Price includes taxes and charges.From $397, select.
Phnom Penh.$415 per passenger.Departing Wed, 8 Oct, returning Sun, 12 Oct.Return flight with Cambodia Airways.Outbound direct flight with Cambodia Airways departs from Hong Kong Intl on Wed, 8 Oct, arriving in Phnom Penh.Inbound direct flight with Cambodia Airways departs from Phnom Penh on Sun, 12 Oct, arriving in Hong Kong Intl.Price includes taxes and charges.From $415, select.

Find the cheapest month to fly from Hong Kong Intl to Phnom Penh

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Hong Kong Intl to Phnom Penh flights are currently cheapest in August.
Aug
from $320
Sep
from $332
Oct
from $397
Nov
from $434
Dec
from $555
Jan
from $378
Feb
from $554
Mar
Find prices
Apr
from $529
May
from $393
Jun
from $506
Jul
from $780

Direct flights from Hong Kong Intl to Phnom Penh

Hong Kong Intl to Phnom Penh: Alternative routes

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

Hong Kong to Phnom Penh: Flight information

The things to know before you go.
Cheapest flight found$320
Cheapest month to flyAugust
Average flight time2 hrs, 40 mins
Most popular airlineQatar Airways
Average flights per week28

Finding cheap flights from Hong Kong Intl to Phnom Penh: Frequently asked questions

The best price we found for a return flight from Hong Kong Intl 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.
2 hours and 40 minutes is the average flight time from Hong Kong Intl to Phnom Penh.
Qatar Airways, Cathay Pacific and Cambodia Airways fly direct from Hong Kong Intl to Phnom Penh.
As of August 2025, there are 28 flights per week flying from Hong Kong Intl to Phnom Penh.
The cheapest month to fly from Hong Kong Intl to Phnom Penh is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Hong Kong Intl Airport to Phnom Penh Airport on Saturday, 23 August 2025.
Yes – the average flight time is 2 hours and 40 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.
Currently, Cambodia Airways offers the cheapest flight tickets to Phnom Penh.

Flying from Hong Kong International Airport (HKG) to Phnom Penh International Airport (PNH): what you need to know

  • Jump on a direct flight from Hong Kong International Airport to Phnom Penh International Airport and you'll be travelling for an average of 2 hours 35 minutes.

  • Phnom Penh's timezone is UTC+7, which makes Phnom Penh one hour behind Hong Kong.

  • Flights from HKG to PNH start at 08:35 — the earliest with Cathay Pacific. The last service of the day is at 16:00 with Cathay Pacific. Overall, there are 19 weekly Hong Kong International Airport to Phnom Penh International Airport flights.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are tried-and-true travel tips. Show up at the airport on time to board your HKG to PNH flight.

  • During popular months such as April, it's best to get to the airport even earlier. Plan to arrive two hours before domestic departures and four hours ahead for international flights whenever you're flying during peak periods in general.

  • Cathay Pacific has direct flights from Hong Kong International Airport to Phnom Penh International Airport. Book with this popular airline, then get ready to discover the sights in Phnom Penh — and maybe even more of Cambodia if you have time.

  • The majority of passengers choose to travel with Cathay Pacific on this route.

  • The carrier with the most consistent on-time arrivals for HKG to PNH flights is Cathay Pacific.

  • Consider adding a stopover when booking your ticket from Hong Kong International Airport to Phnom Penh International Airport. Just uncheck 'Direct flights only' to break up your journey, or visit a new city along the way. Here are some options between HKG and PNH:

    • Tan Son Nhat International Airport

    • Suvarnabhumi Airport

    • Noi Bai International Airport

How to find the cheapest flights from Hong Kong International Airport (HKG) to Phnom Penh International Airport (PNH)

  • Currently, $134 is the lowest price we've seen for a one-way Hong Kong International Airport to Phnom Penh International Airport flight. The best price for a return plane ticket is $320. Bear in mind that fares can change due to availability at the time of booking.

  • To get cheap tickets from HKG to PNH, book your trip six months ahead of your planned departure.

  • The cheapest month for flights from Hong Kong International Airport to Phnom Penh International Airport is May. Use the 'Whole month' tool to see the lowest prices if you have flexible dates.

  • You won't have to check every day to see if fares have gone down when you set up a Price Alert. We'll update you the moment the price changes on cheap flights from HKG to PNH.

  • Lock in the ideal flight for you with the help of the filters. To see the 'Best,' 'Cheapest' or 'Fastest' flights from Hong Kong International Airport to Phnom Penh International Airport, use the 'Sort by' tool. You can also filter results by airline, arrival and departure times, and journey duration.

Handy information about Hong Kong International Airport (HKG)

  • You'll find HKG at 1 Cheong Hong Rd.

  • 73.04% of flights that leave from Hong Kong International Airport arrive at their destination on time.

  • Central Hong Kong to Hong Kong International Airport is approximately 32 kilometres. Depending on traffic, it'll take you about 30 minutes to get there if you're driving, catching a cab or ride-sharing.

  • The trip when using public transport usually takes 45 minutes.

  • Get your holiday off to a relaxed start by staying near HKG. Whether you're taking an early flight from Hong Kong International Airport to Phnom Penh International Airport or want to avoid feeling rushed, these stays are the answer:

Arriving at Phnom Penh International Airport (PNH)

  • The last thing you want is a lengthy trip to your hotel if you're arriving on a late Hong Kong International Airport to Phnom Penh International Airport flight. Check in to one of these accommodation options near PNH instead:

  • Pick up a Phnom Penh International Airport rental car and explore Phnom Penh and beyond with your own set of wheels. Europcar, Avis and Budget are leading providers you can book with here.

  • To get the lowest price, book your ride from Phnom Penh International Airport about one week ahead.

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

  • Phnom Penh International Airport to central Phnom Penh has a drive time of about 30 minutes. It's approximately 11 kilometres away.

When to fly to Phnom Penh International Airport (PNH)

  • It's time to choose your dates for your flight from Hong Kong International Airport to Phnom Penh International Airport. August is the busiest month to head to Phnom Penh. If you want a more low-key vibe, go in February.

  • Lock in your flight from Hong Kong International 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 has average temperatures of between 20ºC (68ºF) and 33ºC (91ºF). Look for cheap tickets from HKG to PNH around that time if you want to travel in cooler conditions.

Explore more of Cambodia

  • Phnom Penh is easy to fall in love with, but there are so many other parts of Cambodia waiting to be explored. Around 193 kilometres south-west of Phnom Penh, a trip to Sihanoukville will keep you busy. Start with attractions like Ochheuteal Beach, Wat Leu Temple and Wat Krom Temple.

  • Battambang is another sought-after destination in Cambodia and is around 257 kilometres north-west of Phnom Penh. No trip is complete without dropping by The Garden of SamDech Sar Kheng, Spean Thmor Chas and សួននាគសន្តិភាព-Dragon Peace Garden.

Plan the rest of your trip from Hong Kong to Phnom Penh

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