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Cheap flights from Hong Kong to Siem Reap, Cambodia from HK$1,373

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 25-9. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SAI
11 Sep — 18 Sep1
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 12 August 2026.

Wed 16-918:45 -
1 stop24h 10m
Sun 20-918:30 -
1 stop21h 55m
Deal found 11-8HK$2,550
Sat 19-1218:40 -
1 stop26h 50m
Tue 22-1218:40 -
1 stop21h 45m
Deal found 9-8HK$2,660
Tue 3-1114:30 -
1 stop6h 10m
Sat 7-1121:30 -
1 stop18h 55m
Deal found 9-8HK$2,762
Sat 10-1018:45 -
1 stop24h 35m
Sat 17-1017:20 -
2 stops19h 10m
Deal found 9-8HK$2,786
Sat 19-1218:40 -
1 stop26h 50m
Wed 30-1221:30 -
1 stop18h 55m
Deal found 8-8HK$2,825
Fri 4-1218:40 -
1 stop24h 00m
Mon 7-1217:05 -
2 stops19h 25m
Deal found 11-8HK$2,833
Thu 31-1218:40 -
1 stop24h 00m
Mon 4-117:55 -
1 stop18h 35m
Deal found 11-8HK$2,848
Thu 17-1218:40 -
1 stop26h 50m
Thu 31-1221:30 -
1 stop18h 55m
Deal found 8-8HK$2,864
Wed 16-1218:40 -
1 stop24h 00m
Mon 28-1218:40 -
1 stop21h 45m
Deal found 8-8HK$2,943

Find flight deals from Hong Kong to Siem Reap

Keep the following information in mind while searching for Hong Kong to Siem Reap flight deals. Data was last updated 12 August 2026.

Round-trip from

HK$2,550

One-way from

HK$1,373
Vietnam Airlines
  • Vietnam Airlines
  • 16-9-20-9
  • 2 total stops
  • 46h 05m total
  • Hong Kong to Siem Reap
Search Deals
Cambodia Angkor Air
  • Cambodia Angkor Air
  • 25-9
  • 1 total stop
  • 21h 15m total
  • Hong Kong to Siem Reap
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 70,647 searches. Data last updated 12 August 2026.
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

Departure

Return

Price

Cheapest return flight

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Sat 10-10

18:45-18:20

1 stop24h 35m

Siem Reap–Angkor Intl

Sat 17-10

17:20-13:30

2 stops19h 10m

HK$2,786
Fastest return journey

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Tue 3-11

14:30-19:40

1 stop6h 10m

Siem Reap–Angkor Intl

Sat 7-11

17:05-13:30

2 stops19h 25m

HK$2,841

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Sun 20-12

18:40-17:40

1 stop24h 00m

Siem Reap–Angkor Intl

Wed 30-12

21:30-17:25

1 stop18h 55m

HK$2,943

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Sat 19-12

14:30-16:55

1 stop27h 25m

Siem Reap–Angkor Intl

Tue 29-12

21:30-17:25

1 stop18h 55m

HK$2,943

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Mon 14-12

14:30-16:55

1 stop27h 25m

Siem Reap–Angkor Intl

Sat 2-1

21:30-17:25

1 stop18h 55m

HK$2,943

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Tue 22-12

14:30-16:10

2 stops26h 40m

Siem Reap–Angkor Intl

Mon 28-12

17:55-13:30

1 stop18h 35m

HK$3,013

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Thu 17-12

14:30-16:10

2 stops26h 40m

Siem Reap–Angkor Intl

Tue 29-12

21:30-17:25

1 stop18h 55m

HK$3,013

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Fri 1-1

18:40-20:30

1 stop26h 50m

Siem Reap–Angkor Intl

Fri 8-1

17:05-13:30

2 stops19h 25m

HK$3,013

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Sat 2-1

18:40-20:30

1 stop26h 50m

Siem Reap–Angkor Intl

Fri 8-1

21:30-17:25

1 stop18h 55m

HK$3,288

Hong KongSiem Reap

HKG Hong Kong Intl - SAI Siem Reap–Angkor Intl

HKGSAI

Hong Kong Intl

Sat 19-12

18:40-16:55

2 stops47h 15m

Siem Reap–Angkor Intl

Tue 22-12

21:30-17:25

1 stop18h 55m

HK$3,492

Flights are sorted by cheapest return flights first.

Deals found on 10-8

Showing 1-10 of 20 resultsSorted by cheapest first
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.

Cheapflights Insights

Everything you need to know about your flight from Hong Kong to Siem Reap

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Siem Reap

Get insights into the airlines that provide service to Siem Reap. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Siem Reap. Reviews last updated 12 August 2026.
See what other customers who have flown with Vietnam Airlines from Hong Kong to Siem Reap have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Vietnam Airlines
7.7
Good
284 reviews
Check prices

Crew

8.3

Boarding

7.7

Entertainment

6.3

Overall

7.7

Food

6.9

Comfort

7.7

Reviews

1 / 16
2.0
Mediocre

Stephen,Apr 2026

SGN - DAD

45 minutes late. Bottle of water and that’s about it.
Vietnam Airlines
7.7
Good
284 reviews
Vietnam Airlines
7.7
Good
284 reviews
Check prices

Crew

8.3

Boarding

7.7

Entertainment

6.3

Overall

7.7

Food

6.9

Comfort

7.7

Reviews

1 / 16
2.0
Mediocre

Stephen,Apr 2026

SGN - DAD

45 minutes late. Bottle of water and that’s about it.

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.

  • What airport do you fly into for flights to Siem Reap from Hong Kong?

    For a flight from Hong Kong to Siem Reap, you will be flying into Siem Reap–Angkor Intl. Siem Reap–Angkor Intl (SAI) is just 39.7 km from the centre of the city.

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

    A quick flight from Hong Kong to Siem Reap can take about 24h 35m. Vietnam Airlines provides one of the quickest options available for as low as HK$2,786. The distance from Hong Kong to Siem Reap is about 1426 km.

  • What is the cheapest airline to fly from Hong Kong to Siem Reap round-trip?

    Currently priced at HK$2,282, Vietnam Airlines will fly you from Hong Kong to Siem Reap and back. In addition to Vietnam Airlines, many other airlines offer competitively priced options for your trip.

  • 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

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Alternative routes for Hong Kong to Siem Reap

See prices for flight routes from nearby airports that may be better suited for you.
Hong Kong to Siem Reap flights

Top airline flying from Hong Kong to Siem Reap

Discover the top airline that operate flights from Hong Kong to Siem Reap. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 70,647 searches. Data last updated 12 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Vietnam AirlinesCheapestHK$2,282AverageHK$4,704FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights

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?

When you search for this flight from Hong Kong to Siem Reap, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Hong Kong to Siem Reap.

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 offers price alerts on Hong Kong to Siem Reap 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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