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Cheap flights from Hong Kong to Phnom Penh

HKG — KTI
22 Sep — 29 Sep1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Hong Kong to Phnom Penh

Popular in

July

Cheapest in

May

Average price

£254
Highest demand for flights based on searches. 18% potential increase in price (£33 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
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Average for round-trip flights in August 2026
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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 £166). Flying from Hong Kong to Phnom Penh in July is currently the most expensive (average of £262). 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.

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
1,457 reviews
Check prices

Comfort

7.5

Crew

8.1

Food

7.3

Boarding

7.9

Overall

7.6

Entertainment

7.7

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
1,457 reviews
Cathay Pacific
7.6
Good
1,457 reviews
Check prices

Comfort

7.5

Crew

8.1

Food

7.3

Boarding

7.9

Overall

7.6

Entertainment

7.7

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

    According to our current data, Cathay Pacific (£188), offers the cheapest pricing from Hong Kong to Phnom Penh. Cathay Pacific is currently priced 9% below the average price you’ll pay for this route.

  • 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 Finnair (72%), Cambodia Airways (68%) or Cathay Pacific (66%) 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 £166). Flying from Hong Kong to Phnom Penh in July is currently the most expensive (average of £262). 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£188Average£253FlexibilityNo cancel feeOn-time72%
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Cheapflights helps you search for flights from Hong Kong to Phnom Penh via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

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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