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Cheap flights from Hong Kong to Siem Reap, Cambodia from HK$1,496

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 5-8. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SAI
21 May — 28 May1
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 21 April 2026.

Sat 4-718:45
HKG
-
SAI
1 stop19h 30m
Vietnam Airlines
Mon 6-718:55
SAI
-
HKG
1 stop21h 30m
Vietnam Airlines
Deal found 20-4HK$2,725
Tue 1-918:45
HKG
-
SAI
1 stop24h 35m
Vietnam Airlines
Fri 4-921:45
SAI
-
HKG
1 stop18h 40m
Vietnam Airlines
Deal found 19-4HK$2,811
Fri 31-718:45
HKG
-
SAI
1 stop15h 00m
Vietnam Airlines
Sat 8-822:35
SAI
-
HKG
1 stop17h 50m
Vietnam Airlines
Deal found 15-4HK$2,827
Fri 8-514:30
HKG
-
SAI
1 stop27h 40m
Vietnam Airlines
Sat 16-522:35
SAI
-
HKG
1 stop17h 50m
Vietnam Airlines
Deal found 16-4HK$2,882
Sat 4-716:55
HKG
-
SAI
2 stops24h 40m
Multiple Airlines
Mon 6-718:55
SAI
-
HKG
1 stop21h 30m
Multiple Airlines
Deal found 20-4HK$3,360
Wed 29-414:30
HKG
-
SAI
1 stop27h 40m
Vietnam Airlines
Tue 5-519:10
SAI
-
HKG
1 stop21h 15m
Vietnam Airlines
Deal found 19-4HK$3,681
Fri 31-720:30
HKG
-
SAI
2 stops19h 20m
Multiple Airlines
Sat 8-822:35
SAI
-
HKG
1 stop17h 50m
Multiple Airlines
Deal found 15-4HK$3,696
Wed 29-414:30
HKG
-
SAI
1 stop27h 40m
Vietnam Airlines
Mon 4-517:20
SAI
-
HKG
2 stops19h 10m
Vietnam Airlines
Deal found 19-4HK$4,041

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 21 April 2026.

Round-trip from

HK$2,725

One-way from

HK$1,496
Vietnam Airlines
  • Vietnam Airlines
  • 4-7-6-7
  • 2 total stops
  • 41h 00m total
  • Hong Kong to Siem Reap
Search Deals
Cambodia Angkor Air
  • Cambodia Angkor Air
  • 11-5
  • 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 21 April 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
Fastest return journey

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Tue 1-9

18:45-18:20

1 stop24h 35m

Siem Reap–Angkor Intl

Fri 4-9

21:45-17:25

1 stop18h 40m

HK$2,811

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Fri 8-5

14:30-17:10

1 stop27h 40m

Siem Reap–Angkor Intl

Sat 16-5

18:05-17:25

2 stops22h 20m

HK$3,978

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Thu 30-4

18:45-18:20

1 stop24h 35m

Siem Reap–Angkor Intl

Mon 4-5

17:20-13:30

2 stops19h 10m

HK$4,777

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Tue 1-9

15:05-20:10

2 stops30h 05m

Siem Reap–Angkor Intl

Fri 4-9

21:10-21:05

3 stops22h 55m

HK$4,996
Cheapest one-way

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Wed 5-8

21:35-14:20

1 stop17h 45m

HK$1,496

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Sun 31-5

21:35-14:20

1 stop17h 45m

HK$1,527

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Thu 25-6

14:30-17:10

1 stop27h 40m

HK$1,543

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Wed 24-6

21:35-14:20

1 stop17h 45m

HK$1,551

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Wed 27-5

21:35-11:15

1 stop14h 40m

HK$1,598
Fastest single journey

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Wed 24-6

08:25-16:10

2 stops8h 45m

HK$2,013

Flights are sorted by cheapest return flights first.

Deals found on 20-4

Showing 1-10 of 15 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 21 April 2026.
See what other customers who have flown with Bangkok Airways and 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.
Bangkok Airways
8.1
Very Good
128 reviews
Check prices

Boarding

8.1

Crew

8.6

Food

7.3

Comfort

8.0

Entertainment

6.3

Overall

8.1

Reviews

1 / 8
10.0
Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect
Bangkok Airways
8.1
Very Good
128 reviews
Bangkok Airways
8.1
Very Good
128 reviews
Check prices

Boarding

8.1

Crew

8.6

Food

7.3

Comfort

8.0

Entertainment

6.3

Overall

8.1

Reviews

1 / 8
10.0
Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect
Vietnam Airlines
7.7
Good
260 reviews
Bangkok Airways
8.1
Very Good
128 reviews
Check prices

Boarding

8.1

Crew

8.6

Food

7.3

Comfort

8.0

Entertainment

6.3

Overall

8.1

Reviews

1 / 8
10.0
Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect

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$2,811. The distance from Hong Kong to Siem Reap is about 1426 km.

  • What are the cheapest airlines flying from Hong Kong to Siem Reap round-trip?

    Currently priced at HK$1,869, 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. Check Cheapflights for deals on Bangkok Airways for as low as HK$4,292.

  • 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 2 airlines flying from Hong Kong to Siem Reap

Discover the top 2 airlines 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 21 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Vietnam AirlinesCheapestHK$1,869AverageHK$4,656FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Bangkok AirwaysCheapestHK$4,292AverageHK$4,666FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways 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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