Find flights
When to book
FAQs

Cheap flights from Hong Kong to Siem Reap, Cambodia from £99

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/5. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SAI
7 Mar — 14 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Hong Kong to Siem Reap

Enter your travel dates to find the best prices.

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 5 February 2026.

Tue 26/507:40
HKG
-
SAI
1 stop11h 25m
Multiple Airlines
Mon 1/619:05
SAI
-
HKG
1 stop16h 35m
Multiple Airlines
Deal found 2/2£199
Mon 16/318:40
HKG
-
SAI
1 stop15h 55m
Vietnam Airlines
Fri 20/316:00
SAI
-
HKG
1 stop24h 25m
Vietnam Airlines
Deal found 4/2£238
Tue 26/520:05
HKG
-
SAI
3 stops25h 05m
China Eastern
Mon 1/621:10
SAI
-
HKG
2 stops38h 35m
China Eastern
Deal found 2/2£279
Wed 18/218:40
HKG
-
SAI
1 stop23h 50m
Vietnam Airlines
Sun 22/221:30
SAI
-
HKG
1 stop18h 55m
Vietnam Airlines
Deal found 5/2£305
Sun 15/214:30
HKG
-
SAI
2 stops26h 40m
Vietnam Airlines
Sun 22/221:30
SAI
-
HKG
1 stop18h 55m
Vietnam Airlines
Deal found 2/2£374
Sat 14/218:40
HKG
-
SAI
1 stop23h 50m
Vietnam Airlines
Mon 23/217:55
SAI
-
HKG
1 stop18h 35m
Vietnam Airlines
Deal found 2/2£383

Find flight deals from Hong Kong to Siem Reap

Discover tips and strategies to find the most affordable flight options for your journey from Hong Kong (HKG) to Siem Reap (SAI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 5 February 2026.

Round-trip from

£199

One-way from

£99

Popular in

May

Cheapest in

August

Average price

£264
26/5-1/6
  • 26/5-1/6
  • 2 total stops
  • 28h 00m total
  • Hong Kong to Siem Reap
Search Deals
26/5
  • 26/5
  • 1 total stop
  • 11h 25m total
  • Hong Kong to Siem Reap
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£78 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Hong Kong to Siem Reap that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 5 February 2026.
Use the filters below to find and compare flights from Hong Kong to Siem Reap that are best for you.

Fly from

Hong Kong

Fly to

Siem Reap

Route

Depart

Return

Price

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Tue 26/5

07:40-18:05

1 stop11h 25m

Siem Reap–Angkor Intl

Mon 1/6

19:05-12:40

1 stop16h 35m

£199

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Mon 16/3

18:40-09:35

1 stop15h 55m

Siem Reap–Angkor Intl

Fri 20/3

16:00-17:25

1 stop24h 25m

£238

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Tue 26/5

20:05-20:10

3 stops25h 05m

Siem Reap–Angkor Intl

Mon 1/6

21:10-12:45

2 stops38h 35m

£279

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Wed 18/2

18:40-17:30

1 stop23h 50m

Siem Reap–Angkor Intl

Sun 22/2

21:30-17:25

1 stop18h 55m

£305

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Sun 15/2

14:30-16:10

2 stops26h 40m

Siem Reap–Angkor Intl

Sun 22/2

21:30-17:25

1 stop18h 55m

£374

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Tue 26/5

07:40-18:05

1 stop11h 25m

£99

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Thu 14/5

07:40-18:05

1 stop11h 25m

£99

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Tue 24/3

14:30-19:40

1 stop6h 10m

£135

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Tue 24/3

17:40-21:00

2 stops52h 20m

£140

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Thu 14/5

12:05-20:10

3 stops33h 05m

£172

Flights are sorted by cheapest return flights first.

Deals found on 2/2

Showing 1-10 of 14 results
1
2

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.
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

Find useful and relevant information for your journey from Hong Kong to Siem Reap. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 15h 55m. 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

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

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

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.