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Cheap flights from Hong Kong to Phnom Penh from £112

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

Wed 28/1012:30 -
Nonstop2h 35m
Mon 9/1107:45 -
Nonstop2h 45m
Deal found 1/10£190
Thu 24/1212:30 -
Nonstop2h 35m
Tue 29/1207:45 -
Nonstop2h 45m
Deal found 3/10£202
Sun 20/1212:30 -
Nonstop2h 35m
Thu 14/107:45 -
Nonstop2h 45m
Deal found 30/9£203
Sat 19/1212:30 -
Nonstop2h 35m
Fri 15/107:45 -
Nonstop2h 45m
Deal found 30/9£209
Thu 3/1212:30 -
Nonstop2h 35m
Sun 6/1207:45 -
Nonstop2h 45m
Deal found 30/9£211
Wed 9/1212:30 -
Nonstop2h 35m
Sun 3/107:45 -
Nonstop2h 45m
Deal found 3/10£223
Mon 30/1112:30 -
Nonstop2h 35m
Sun 6/1207:45 -
Nonstop2h 45m
Deal found 30/9£225
Sat 19/1212:30 -
Nonstop2h 35m
Sun 3/107:45 -
Nonstop2h 45m
Deal found 4/10£236
Sun 20/1218:40 -
1 stop23h 00m
Thu 14/111:45 -
Nonstop2h 45m
Deal found 30/9£250
Sun 29/1112:30 -
Nonstop2h 35m
Sun 6/1207:45 -
Nonstop2h 45m
Deal found 30/9£257
Sun 20/1218:40 -
1 stop23h 00m
Thu 14/113:50 -
1 stop26h 35m
Deal found 30/9£265

Find flight deals from Hong Kong to Phnom Penh

Round-trip from

£190

One-way from

£112

Popular in

September

Cheapest in

May

Average price

£224
Cambodia Airways
  • Cambodia Airways
  • 28/10-9/11
  • Nonstop
  • 5h 20m total
  • Hong Kong to Phnom Penh
Search Deals
Cambodia Airways
  • Cambodia Airways
  • 20/10-31/12
  • Nonstop
  • 2h 40m total
  • Hong Kong to Phnom Penh
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£21 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£5 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

Depart

Return

Price

Cheapest return flight

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Tue 20/10

12:25-14:05

Nonstop2h 40m

Phnom Penh Techo Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£112
Fastest return journey

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

£127

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Sat 14/11

12:30-14:05

Nonstop2h 35m

Phnom Penh Techo Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£127

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

£133

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Mon 26/10

14:30-13:00

2 stops23h 30m

Phnom Penh Techo Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£171

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Tue 1/12

14:30-13:00

2 stops23h 30m

Phnom Penh Techo Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£173

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Sat 17/10

19:40-11:15

1 stop16h 35m

Phnom Penh Techo Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£184

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Tue 15/12

12:30-14:05

Nonstop2h 35m

Phnom Penh Techo Intl

Mon 4/1

07:45-11:30

Nonstop2h 45m

£211

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Wed 9/12

12:30-14:05

Nonstop2h 35m

Phnom Penh Techo Intl

Wed 30/12

07:45-11:30

Nonstop2h 45m

£211

Hong KongPhnom Penh

HKG Hong Kong Intl - KTI Phnom Penh Techo Intl

HKGKTI

Hong Kong Intl

Mon 14/12

12:30-14:05

Nonstop2h 35m

Phnom Penh Techo Intl

Wed 30/12

07:45-11:30

Nonstop2h 45m

£211

Flights are sorted by cheapest return flights first.

Deals found on 29/9

Showing 1-10 of 23 resultsSorted by cheapest first
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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 £171). Flying from Hong Kong to Phnom Penh in September is currently the most expensive (average of £282). 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 £164 and £248 in October.
The cheapest return price found within the last 5 days was £190 on Cambodia Airways (28 Oct–9 Nov).

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

Comfort

7.6

Overall

7.6

Boarding

7.9

Entertainment

7.8

Food

7.3

Crew

8.1

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

Comfort

7.6

Overall

7.6

Boarding

7.9

Entertainment

7.8

Food

7.3

Crew

8.1

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 long is the flight from Hong Kong to Phnom Penh?

    For as low as £211, Cambodia Airways can have you in Phnom Penh from Hong Kong in 2h 35m. Airlines will cover a distance of 961 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Hong Kong to Phnom Penh round-trip?

    According to our current data, Cathay Pacific (£234), offers the cheapest pricing from Hong Kong to Phnom Penh.

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

    No one likes to see their flight delayed. When booking a flight from Hong Kong to Phnom Penh consider choosing Cambodia Airways (96%), Finnair (90%) or Cathay Pacific (83%) as they are the most reliable in getting you off to your destination on time.

  • 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 £171). Flying from Hong Kong to Phnom Penh in September is currently the most expensive (average of £282). 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

Alternative routes for Hong Kong to Phnom Penh

Hong Kong to Siem Reap flights

Top airline flying from Hong Kong to Phnom Penh

AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest£234Average£261FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights

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Millions of users choose and trust Cheapflights to book the best flight deals from Hong Kong to Phnom Penh for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Hong Kong to Phnom Penh, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Hong Kong to Phnom Penh flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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