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Cheap flights from Hong Kong to Siem Reap, Cambodia from HK$1,357

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 17-9. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SAI
29 Aug — 5 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 30 July 2026.

Tue 1-918:45
HKG
-
SAI
1 stop19h 30m
Vietnam Airlines
Sat 5-918:30
SAI
-
HKG
1 stop21h 55m
Vietnam Airlines
Deal found 28-7HK$2,306
Wed 9-918:45
HKG
-
SAI
1 stop19h 30m
Vietnam Airlines
Wed 16-909:35
SAI
-
HKG
1 stop6h 50m
Vietnam Airlines
Deal found 26-7HK$2,321
Wed 12-818:45
HKG
-
SAI
1 stop19h 30m
Vietnam Airlines
Sun 16-809:35
SAI
-
HKG
1 stop6h 50m
Vietnam Airlines
Deal found 28-7HK$2,329
Tue 11-818:45
HKG
-
SAI
1 stop28h 10m
Vietnam Airlines
Sun 16-809:35
SAI
-
HKG
1 stop6h 50m
Vietnam Airlines
Deal found 28-7HK$2,337
Fri 31-718:45
HKG
-
SAI
1 stop15h 00m
Vietnam Airlines
Sun 9-818:30
SAI
-
HKG
1 stop21h 55m
Vietnam Airlines
Deal found 30-7HK$2,361
Wed 26-818:45
HKG
-
SAI
1 stop15h 00m
Vietnam Airlines
Sun 30-822:35
SAI
-
HKG
1 stop17h 50m
Vietnam Airlines
Deal found 26-7HK$2,368
Tue 4-818:45
HKG
-
SAI
1 stop15h 00m
Vietnam Airlines
Tue 11-819:15
SAI
-
HKG
1 stop21h 10m
Vietnam Airlines
Deal found 26-7HK$2,376
Fri 7-818:45
HKG
-
SAI
1 stop28h 10m
Vietnam Airlines
Wed 12-822:35
SAI
-
HKG
1 stop17h 50m
Vietnam Airlines
Deal found 30-7HK$2,392
Sun 2-812:25
HKG
-
SAI
1 stop26h 30m
柬埔寨航空
Mon 10-811:30
SAI
-
HKG
1 stop22h 55m
柬埔寨航空
Deal found 28-7HK$2,431
Sat 22-818:45
HKG
-
SAI
1 stop15h 00m
Vietnam Airlines
Wed 2-918:30
SAI
-
HKG
1 stop21h 55m
Vietnam Airlines
Deal found 26-7HK$2,486
Mon 26-1018:40
HKG
-
SAI
1 stop24h 00m
Vietnam Airlines
Thu 29-1017:55
SAI
-
HKG
1 stop18h 35m
Vietnam Airlines
Deal found 27-7HK$2,557
Fri 23-1018:45
HKG
-
SAI
1 stop15h 00m
Vietnam Airlines
Mon 2-1117:55
SAI
-
HKG
1 stop18h 35m
Vietnam Airlines
Deal found 29-7HK$2,588

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 30 July 2026.

Round-trip from

HK$2,306

One-way from

HK$1,357
Vietnam Airlines
  • Vietnam Airlines
  • 1-9-5-9
  • 2 total stops
  • 41h 25m total
  • Hong Kong to Siem Reap
Search Deals
17-9
  • 17-9
  • 1 total stop
  • 11h 25m 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 30 July 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 - SAI

HKGSAI

Hong Kong Intl

Tue 1-9

18:45-13:15

1 stop19h 30m

Siem Reap–Angkor Intl

Sat 5-9

18:30-17:25

1 stop21h 55m

HK$2,306
Fastest return journey

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Wed 12-8

18:45-13:15

1 stop19h 30m

Siem Reap–Angkor Intl

Sun 16-8

09:35-17:25

1 stop6h 50m

HK$2,329

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Mon 24-8

18:45-13:15

1 stop19h 30m

Siem Reap–Angkor Intl

Thu 3-9

19:40-17:25

1 stop20h 45m

HK$2,486

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Mon 24-8

18:45-13:15

1 stop19h 30m

Siem Reap–Angkor Intl

Wed 2-9

18:30-17:25

1 stop21h 55m

HK$2,486

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Fri 28-8

18:45-21:55

1 stop28h 10m

Siem Reap–Angkor Intl

Wed 2-9

18:30-17:25

1 stop21h 55m

HK$2,486

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Tue 24-11

18:40-20:30

1 stop26h 50m

Siem Reap–Angkor Intl

Fri 27-11

21:30-17:25

1 stop18h 55m

HK$2,557

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Tue 26-1

18:40-20:30

1 stop26h 50m

Siem Reap–Angkor Intl

Fri 29-1

21:30-17:25

1 stop18h 55m

HK$2,557

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Fri 6-11

14:30-16:55

1 stop27h 25m

Siem Reap–Angkor Intl

Wed 11-11

17:55-13:30

1 stop18h 35m

HK$2,588

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Mon 26-10

18:40-20:30

1 stop26h 50m

Siem Reap–Angkor Intl

Thu 29-10

17:05-13:30

2 stops19h 25m

HK$2,768
Cheapest one-way

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Sun 16-8

07:40-18:05

1 stop11h 25m

HK$1,388

Flights are sorted by cheapest return flights first.

Deals found on 29-7

Showing 1-10 of 19 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 30 July 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
280 reviews
Check prices

Entertainment

6.3

Comfort

7.7

Crew

8.3

Food

6.9

Boarding

7.8

Overall

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
280 reviews
Vietnam Airlines
7.7
Good
280 reviews
Check prices

Entertainment

6.3

Comfort

7.7

Crew

8.3

Food

6.9

Boarding

7.8

Overall

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 19h 30m. Vietnam Airlines provides one of the quickest options available for as low as HK$2,306. 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$2,281, 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

Browse thousands of different options on Cheapflights for your next trip

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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 30 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Vietnam AirlinesCheapestHK$2,281AverageHK$4,701FlexibilityNo 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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