Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Hong Kong to Phnom Penh from HK$1,122

HKG — KTI
3 Nov — 10 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Hong Kong to Phnom Penh

Enter your travel dates to find the best prices.

Cheapest flights from Hong Kong to Phnom Penh

Fri 23-1012:25 -
Nonstop2h 40m
Tue 27-1007:45 -
Nonstop2h 45m
Deal found 2-10HK$1,828
Wed 21-1012:25 -
Nonstop2h 40m
Mon 26-1011:20 -
Nonstop2h 45m
Deal found 3-10HK$1,915
Sat 24-1012:25 -
Nonstop2h 40m
Tue 27-1007:45 -
Nonstop2h 45m
Deal found 1-10HK$1,954
Tue 10-1112:30 -
Nonstop2h 35m
Fri 13-1107:45 -
Nonstop2h 45m
Deal found 30-9HK$1,970
Wed 28-1012:30 -
Nonstop2h 35m
Mon 9-1107:45 -
Nonstop2h 45m
Deal found 1-10HK$1,977
Fri 30-1012:30 -
Nonstop2h 35m
Thu 5-1107:45 -
Nonstop2h 45m
Deal found 30-9HK$2,032
Thu 17-1212:30 -
Nonstop2h 35m
Wed 23-1207:45 -
Nonstop2h 45m
Deal found 1-10HK$2,072
Tue 1-1212:30 -
Nonstop2h 35m
Sat 5-1207:45 -
Nonstop2h 45m
Deal found 29-9HK$2,087
Fri 11-1212:30 -
Nonstop2h 35m
Sun 13-1207:45 -
Nonstop2h 45m
Deal found 2-10HK$2,095
Fri 30-1012:30 -
Nonstop2h 35m
Fri 6-1107:45 -
Nonstop2h 45m
Deal found 2-10HK$2,111
Thu 24-1212:30 -
Nonstop2h 35m
Tue 29-1207:45 -
Nonstop2h 45m
Deal found 1-10HK$2,119

Find flight deals from Hong Kong to Phnom Penh

Round-trip from

HK$1,828

One-way from

HK$1,122

Popular in

September

Cheapest in

May

Average price

HK$2,330
柬埔寨航空
  • 柬埔寨航空
  • 23-10-27-10
  • Nonstop
  • 5h 25m total
  • Hong Kong to Phnom Penh
Search Deals
柬埔寨航空
  • 柬埔寨航空
  • 23-10-31-12
  • Nonstop
  • 2h 40m total
  • Hong Kong to Phnom Penh
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (HK$2,319 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (HK$412 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Hong Kong to Phnom Penh that are best for you.

Fly from

Fly to

Route

Departure

Return

Price

Cheapest return flight
Fastest return journey

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Tue 3-11

12:30-14:05

Nonstop2h 35m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,263

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Tue 1-12

12:30-14:05

Nonstop2h 35m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,318

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Fri 25-12

21:25-23:10

Nonstop2h 45m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,381

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Mon 11-1

20:25-08:25

1 stop13h 00m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,389

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Sun 11-10

14:20-09:55

1 stop20h 35m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,459

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Thu 7-1

20:25-09:45

1 stop14h 20m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,491

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Mon 1-2

21:25-23:10

Nonstop2h 45m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,554

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Sat 26-12

18:40-16:40

1 stop23h 00m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,561

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Mon 12-10

18:45-16:55

1 stop23h 10m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,569

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Mon 30-11

14:30-13:00

2 stops23h 30m

Phnom Penh Techo Intl

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,656

Flights are sorted by cheapest return flights first.

Deals found on 4-10

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Hong Kong to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Hong Kong with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Hong Kong to Phnom Penh

What is the cheapest month to book a flight from Hong Kong to Phnom Penh?

Currently, May is the cheapest month in which you can book a flight from Hong Kong to Phnom Penh (average of HK$1,781). Flying from Hong Kong to Phnom Penh in September is currently the most expensive (average of HK$2,927). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from HKG to KTI?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Hong Kong to Phnom Penh as you normally would.

How much does it cost for a return flight from Hong Kong to Phnom Penh?

Airfare is typical for this route at the moment.

Hong Kong to Phnom Penh flights typically cost between HK$1,703 and HK$2,574 in October.
The cheapest return price found within the last 5 days was HK$1,828 on 柬埔寨航空 (23 Oct–27 Oct).

Reviews of airlines servicing Phnom Penh

Check out reviews from past customers who have flown with Cathay Pacific from Hong Kong to Phnom Penh to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Cathay Pacific
7.6
Good
1,507 reviews
Check prices

Entertainment

7.8

Food

7.3

Comfort

7.6

Crew

8.1

Boarding

7.9

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Cathay Pacific
7.6
Good
1,507 reviews
Cathay Pacific
7.6
Good
1,507 reviews
Check prices

Entertainment

7.8

Food

7.3

Comfort

7.6

Crew

8.1

Boarding

7.9

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

Related info for your journey

  • How popular is this Hong Kong to Phnom Penh flight route?

    Within the past month, 53 users have taken a look at flights from Hong Kong Intl to Phnom Penh Techo Intl.

  • How long is the flight from Hong Kong to Phnom Penh?

    There are many flights that can get you from Hong Kong to Phnom Penh in 2h 35m. Fly via 柬埔寨航空 to get the fastest option. Airlines will cover a distance of 1547 km. Most flights are nonstop.

  • What are the cheapest airlines flying from Hong Kong to Phnom Penh round-trip?

    Flying on Cambodia Angkor Air is currently your cheapest option to Phnom Penh, with prices starting at HK$1,488. Additional round-trip tickets that might be worth considering are offered by 柬埔寨航空 and Cathay Pacific, with the lowest prices starting at HK$1,578 and HK$1,995, respectively. These flights start at 37% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Hong Kong to Phnom Penh one-way?

    For one-way options, check prices for Cambodia Angkor Air. According to our data, you can fly for as low as HK$772. Users have also found prices from HK$874 and HK$1,364 on 柬埔寨航空 and Cathay Pacific, respectively.

  • What are the most reliable airlines from Hong Kong to Phnom Penh?

    The top 3 most reliable airlines when flying from Hong Kong to Phnom Penh are 柬埔寨航空 (96%), Finnair (90%) and Cathay Pacific (83%).

  • Can I find deals for flights from Hong Kong to Phnom Penh that include hotel bookings?

    Yes. In addition to deals on Hong Kong to Phnom Penh flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Hong Kong to Phnom Penh?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hong Kong to Phnom Penh.

  • Can I find deals for business class flights from Hong Kong to Phnom Penh?

    Yes. Cheapflights offers flight deals from Hong Kong to Phnom Penh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Hong Kong to Phnom Penh?

    Currently, May is the cheapest month in which you can book a flight from Hong Kong to Phnom Penh (average of HK$1,781). Flying from Hong Kong to Phnom Penh in September is currently the most expensive (average of HK$2,927). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Fly from Hong Kong to Phnom Penh on these airlines

Cathay Pacific flights from Hong Kong Intl to Phnom Penh Techo Intl

Top 3 airlines flying from Hong Kong to Phnom Penh

AirlineCheapestAverageFlexibilityOn-time
Cambodia Angkor AirCheapestHK$1,488AverageHK$1,701FlexibilityNo cancel feeOn-timeN/A
Search Cambodia Angkor Air flights
柬埔寨航空CheapestHK$1,578AverageHK$1,889FlexibilityNo cancel feeOn-timeN/A
Search 柬埔寨航空 flights
Cathay PacificCheapestHK$1,995AverageHK$2,778FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights

Fly with Cheapflights

How does Cheapflights help users find flights from Hong Kong to Phnom Penh?

When you search for this flight from Hong Kong to Phnom Penh, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Hong Kong to Phnom Penh?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Hong Kong to Phnom Penh.

Can Cheapflights find flights from Hong Kong to Phnom Penh with no change fees?

Need flexible booking options for your flight to Phnom Penh from Hong Kong? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Hong Kong to Phnom Penh become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Phnom Penh from Hong Kong today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.