How long is the flight from Hong Kong to Siem Reap?

There are many flights that can get you from Hong Kong to Siem Reap in 24h. Fly via Vietnam Airlines to get the fastest option. The distance from Hong Kong to Siem Reap is about 886 mi.

In terms of precipitation, rainfall in Siem Reap ranges from 0.0 - 260.0 inches per month. September is typically the wettest month, when rainfall can reach 260.0 mm. January is typically the driest time to visit Siem Reap when rainfall is around 0.0 mm.

If weather is an important factor for your trip to Siem Reap, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 24.0 C).

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

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

Can I find deals for flights from Hong Kong to Siem Reap that include hotel bookings?

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

How can I find direct flights from Hong Kong to Siem Reap?

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

Can I find deals for business class flights from Hong Kong to Siem Reap?

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

£155+ Cheap Flights from Hong Kong to Siem Reap, Cambodia

Cheap flight deals from Hong Kong to Siem Reap

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Hong Kong to Siem Reap
Explore the most affordable flight options available from Hong Kong to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Mon 16/1118:40 -

1 stop26h 50m

Sat 28/1118:40 -

1 stop21h 45m

Deal found 16/9£274

Sun 15/1121:25 -

1 stop15h 40m

Wed 25/1112:45 -

1 stop6h 40m

Deal found 16/9£280

Sun 6/1214:30 -

2 stops26h 40m

Sun 13/1221:30 -

1 stop18h 55m

Deal found 15/9£281

Sun 15/1114:30 -

1 stop27h 25m

Mon 23/1118:40 -

1 stop21h 45m

Deal found 16/9£282

Thu 31/1218:40 -

1 stop26h 50m

Sat 2/121:30 -

1 stop18h 55m

Deal found 15/9£283

Wed 30/1214:30 -

2 stops26h 40m

Sun 3/121:30 -

1 stop18h 55m

Deal found 15/9£291

Wed 18/1114:30 -

1 stop27h 25m

Thu 19/1121:30 -

1 stop18h 55m

Deal found 14/9£294

Sun 15/1114:30 -

2 stops26h 40m

Sat 28/1117:05 -

2 stops19h 25m

Deal found 16/9£296

Mon 16/1118:40 -

1 stop26h 50m

Thu 19/1117:05 -

2 stops19h 25m

Deal found 14/9£306

Sun 15/1114:30 -

2 stops26h 40m

Thu 19/1117:05 -

2 stops19h 25m

Deal found 14/9£313

Mon 16/1114:30 -

1 stop27h 25m

Wed 18/1117:05 -

2 stops19h 25m

Deal found 14/9£319

Find flight deals from Hong Kong to Siem Reap

Round-trip from	£274
One-way from	£155

Vietnam Airlines
16/11-24/11
2 total stops
45h 45m total
Hong Kong to Siem Reap

Search Deals

Vietnam Airlines
20/11-31/12
1 total stop
24h 00m total
Hong Kong to Siem Reap

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Wed 9/12

18:40-17:40

1 stop24h 00m

Siem Reap–Angkor Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£155

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Fri 20/11

18:40-17:40

1 stop24h 00m

Siem Reap–Angkor Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£155

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Fri 20/11

18:40-17:40

1 stop24h 00m

Siem Reap–Angkor Intl

Sat 21/11

21:30-17:25

1 stop18h 55m

£274

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Thu 19/11

18:40-17:40

1 stop24h 00m

Siem Reap–Angkor Intl

Sat 28/11

18:40-17:25

1 stop21h 45m

£274

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Mon 16/11

14:30-16:55

1 stop27h 25m

Siem Reap–Angkor Intl

Sat 21/11

21:30-17:25

1 stop18h 55m

£274

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Tue 17/11

18:40-20:30

1 stop26h 50m

Siem Reap–Angkor Intl

Fri 27/11

21:30-17:25

1 stop18h 55m

£274

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Sat 21/11

18:40-20:30

1 stop26h 50m

Siem Reap–Angkor Intl

Fri 27/11

17:05-13:30

2 stops19h 25m

£281

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Sun 15/11

14:30-16:10

2 stops26h 40m

Siem Reap–Angkor Intl

Sat 21/11

21:30-17:25

1 stop18h 55m

£281

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Thu 19/11

18:40-20:30

1 stop26h 50m

Siem Reap–Angkor Intl

Fri 27/11

17:05-13:30

2 stops19h 25m

£281

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Sun 15/11

14:30-16:10

2 stops26h 40m

Siem Reap–Angkor Intl

Tue 17/11

17:55-13:30

1 stop18h 35m

£281

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 17 resultsSorted by cheapest first

Best time to book a flight from Hong Kong to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap from Hong Kong with our price prediction graph.

HKG-SAI

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

How long is the flight from Hong Kong to Siem Reap?
There are many flights that can get you from Hong Kong to Siem Reap in 24h. Fly via Vietnam Airlines to get the fastest option. The distance from Hong Kong to Siem Reap is about 886 mi.
Can I find deals for flights from Hong Kong to Siem Reap that include hotel bookings?
Yes. In addition to deals on Hong Kong to Siem Reap flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Hong Kong to Siem Reap?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hong Kong to Siem Reap.
Can I find deals for business class flights from Hong Kong to Siem Reap?
Yes. Cheapflights offers flight deals from Hong Kong to Siem Reap by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Complete your trip

Flights by cabin class

Other flight options

Other flights from Hong Kong

Popular flights

Complete your trip

Siem Reap car hire

Siem Reap–Angkor Intl Airport car hire

Old French Quarter car hire

Taphul Village Area car hire

Wat Bo Area car hire

Wat Polanka Area car hire

Wat Damnak Area car hire

Night Market Area car hire

Phsar Leu Area car hire

Royal Gardens Area car hire

Old Market Area car hire

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How does Cheapflights help users find flights from Hong Kong to Siem Reap?

Cheapflights helps you search for flights from Hong Kong to Siem Reap 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 Siem Reap?

Cheapflights simply makes it quick and affordable to book flights from Hong Kong to Siem Reap by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Hong Kong to Siem Reap 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 Siem Reap, 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 Siem Reap become cheaper?

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

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Cheap flights from Hong Kong to Siem Reap, Cambodia from £155

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Hong Kong to Siem Reap

Cheapest flights from Hong Kong to Siem ReapExplore the most affordable flight options available from Hong Kong to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Explore the most affordable flight options available from Hong Kong to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Best flights from Hong Kong to Siem ReapDiscover carefully curated flight deals from Hong Kong to Siem Reap that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Discover carefully curated flight deals from Hong Kong to Siem Reap that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Last-minute flights from Hong Kong to Siem ReapDiscover last-minute flight deals from Hong Kong to Siem Reap. Data last updated 17 September 2026 and is based on user searches.

Discover last-minute flight deals from Hong Kong to Siem Reap. Data last updated 17 September 2026 and is based on user searches.

One-way flights from Hong Kong to Siem ReapSearch for one-way flight options from Hong Kong to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

Search for one-way flight options from Hong Kong to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

Find flight deals from Hong Kong to Siem Reap

Round-trip from

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Cheapflights Fare Finder

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

Best time to book a flight from Hong Kong to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap from Hong Kong with our price prediction graph.

Related info for your journey

How long is the flight from Hong Kong to Siem Reap?

Can I find deals for flights from Hong Kong to Siem Reap that include hotel bookings?

How can I find direct flights from Hong Kong to Siem Reap?

Can I find deals for business class flights from Hong Kong to Siem Reap?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Complete your trip

Complete your trip to Siem Reap by adding a car hire and/or hotel booking to your travel itinerary.

Search flights from Hong Kong to Siem Reap by cabin class

Find flights from Hong Kong to Siem Reap, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hong Kong and Siem Reap flights

Browse other Hong Kong and Siem Reap flight options. Last updated on 17 September 2026.

Other flights from Hong Kong

Browse through other flights departing from Hong Kong. Flights are based on user searches made on Cheapflights and were last updated on 17 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

How does Cheapflights help users find flights from Hong Kong to Siem Reap?

Why should you use Cheapflights to find cheap flight tickets from Hong Kong to Siem Reap?

Can Cheapflights find flights from Hong Kong to Siem Reap with no change fees?

Can Cheapflights notify me if prices for flights from Hong Kong to Siem Reap become cheaper?

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Book with Flexibility

Travel Smart

Cheapest flights from Hong Kong to Siem Reap
Explore the most affordable flight options available from Hong Kong to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Best flights from Hong Kong to Siem Reap
Discover carefully curated flight deals from Hong Kong to Siem Reap that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Last-minute flights from Hong Kong to Siem Reap
Discover last-minute flight deals from Hong Kong to Siem Reap. Data last updated 17 September 2026 and is based on user searches.

One-way flights from Hong Kong to Siem Reap
Search for one-way flight options from Hong Kong to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.