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Cheap flights from Hong Kong to Phnom Penh

HKG — KTI
7 Oct — 14 Oct1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Hong Kong to Phnom Penh

Popular in

July

Cheapest in

May

Average price

HK$1,882
Highest demand for flights based on searches. 18% potential increase in price (HK$3,923 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (HK$420 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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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$1,780). Flying from Hong Kong to Phnom Penh in July is currently the most expensive (average of HK$2,807). 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 HK to KTI?

When flying from Hong Kong to Phnom Penh, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Phnom Penh

Get a feel of what it's like to fly with Cathay Pacific from Hong Kong to Phnom Penh by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Cathay Pacific
7.6
Good
1,473 reviews
Check prices

Boarding

7.9

Entertainment

7.7

Food

7.3

Overall

7.6

Comfort

7.5

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
1,473 reviews
Cathay Pacific
7.6
Good
1,473 reviews
Check prices

Boarding

7.9

Entertainment

7.7

Food

7.3

Overall

7.6

Comfort

7.5

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

  • What airport do you fly into for flights to Phnom Penh from Hong Kong?

    For a flight from Hong Kong to Phnom Penh, you will be flying into Techo Intl. Phnom Penh Techo Intl (KTI) is just 22.6 km from the centre of the city.

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

    Within the past month, 51 users have taken a look at flights from Hong Kong to Phnom Penh Techo Intl.

  • 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$1,486. 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$1,577 and HK$1,999, respectively. These flights start at 33% 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$771. Users have also found prices from HK$874 and HK$1,363 on 柬埔寨航空 and Cathay Pacific, respectively.

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

    Before booking your flight to Phnom Penh from Hong Kong, have a look at the most reliable airlines to get you to your destination on time: Finnair (74%), 柬埔寨航空 (73%), Cathay Pacific( 68%).

  • 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$1,780). Flying from Hong Kong to Phnom Penh in July is currently the most expensive (average of HK$2,807). 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 3 airlines flying from Hong Kong to Phnom Penh

AirlineCheapestAverageFlexibilityOn-time
Cambodia Angkor AirCheapestHK$1,486AverageHK$1,754FlexibilityNo cancel feeOn-timeN/A
Search Cambodia Angkor Air flights
柬埔寨航空CheapestHK$1,577AverageHK$1,887FlexibilityNo cancel feeOn-timeN/A
Search 柬埔寨航空 flights
Cathay PacificCheapestHK$1,999AverageHK$2,776FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights

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