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Cheap flights from Hong Kong to Siem Reap, Cambodia from HK$1,233

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 21-6. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SAI
1 Mar — 8 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 30 January 2026.

Mon 16-321:25
HKG
-
SAI
1 stop14h 25m
Cambodia Angkor Air
Fri 20-309:20
SAI
-
HKG
1 stop10h 05m
Cambodia Angkor Air
Deal found 29-1HK$2,193
Thu 29-118:40
HKG
-
SAI
1 stop19h 35m
Vietnam Airlines
Sat 31-117:55
SAI
-
HKG
1 stop18h 35m
Vietnam Airlines
Deal found 28-1HK$2,271
Fri 20-318:40
HKG
-
SAI
1 stop15h 55m
Vietnam Airlines
Thu 9-418:05
SAI
-
HKG
1 stop18h 25m
Vietnam Airlines
Deal found 29-1HK$2,333
Sun 15-221:25
HKG
-
SAI
1 stop12h 15m
Cambodia Angkor Air
Wed 25-219:45
SAI
-
HKG
1 stop23h 40m
Cambodia Angkor Air
Deal found 28-1HK$2,388
Mon 16-318:40
HKG
-
SAI
1 stop15h 55m
Vietnam Airlines
Fri 20-317:05
SAI
-
HKG
2 stops19h 25m
Vietnam Airlines
Deal found 29-1HK$2,404
Mon 23-220:30
HKG
-
SAI
1 stop24h 45m
Multiple Airlines
Sun 15-321:40
SAI
-
HKG
1 stop21h 45m
Multiple Airlines
Deal found 28-1HK$2,630
Thu 29-114:30
HKG
-
SAI
2 stops26h 40m
Vietnam Airlines
Mon 2-217:05
SAI
-
HKG
2 stops19h 25m
Vietnam Airlines
Deal found 28-1HK$2,903
Wed 18-214:30
HKG
-
SAI
1 stop27h 25m
Vietnam Airlines
Sun 22-221:30
SAI
-
HKG
1 stop18h 55m
Vietnam Airlines
Deal found 28-1HK$3,200

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 30 January 2026.

Round-trip from

HK$2,193

One-way from

HK$1,233

Popular in

May

Cheapest in

August

Average price

HK$3,200
Cambodia Angkor Air
  • Cambodia Angkor Air
  • 16-3-20-3
  • 2 total stops
  • 24h 30m total
  • Hong Kong to Siem Reap
Search Deals
Cambodia Angkor Air
  • Cambodia Angkor Air
  • 21-6
  • 1 total stop
  • 17h 50m total
  • Hong Kong to Siem Reap
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (HK$8,924 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (HK$2,298 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 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 70,647 searches. Data last updated 30 January 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

Departure

Return

Price

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Mon 16-3

21:25-10:50

1 stop14h 25m

Siem Reap–Angkor Intl

Fri 20-3

09:20-20:25

1 stop10h 05m

HK$2,193

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Fri 20-3

18:40-09:35

1 stop15h 55m

Siem Reap–Angkor Intl

Thu 9-4

18:05-13:30

1 stop18h 25m

HK$2,333

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Sun 15-2

21:25-08:40

1 stop12h 15m

Siem Reap–Angkor Intl

Wed 25-2

19:45-20:25

1 stop23h 40m

HK$2,388

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

17:05-13:30

2 stops19h 25m

HK$2,404

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Mon 23-2

20:30-20:15

1 stop24h 45m

Siem Reap–Angkor Intl

Sun 15-3

21:40-20:25

1 stop21h 45m

HK$2,630

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Wed 18-2

14:30-16:55

1 stop27h 25m

Siem Reap–Angkor Intl

Sun 22-2

21:30-17:25

1 stop18h 55m

HK$3,200

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Wed 18-2

20:10-11:00

1 stop15h 50m

Siem Reap–Angkor Intl

Thu 19-2

21:40-20:25

1 stop21h 45m

HK$3,262

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Sun 21-6

21:35-14:25

1 stop17h 50m

HK$1,233

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Wed 1-7

07:40-18:05

1 stop11h 25m

HK$1,241

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Tue 30-6

07:40-18:05

1 stop11h 25m

HK$1,249

Flights are sorted by cheapest return flights first.

Deals found on 29-1

Showing 1-10 of 16 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.

Cheapflights Insights

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

How much does it cost for a return flight from Hong Kong to Siem Reap?

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 January 2026.
Get a feel of what it's like to fly with Bangkok Airways and Vietnam Airlines from Hong Kong to Siem Reap by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Bangkok Airways
8.0
Very Good
121 reviews
Check prices

Crew

8.6

Boarding

8.0

Overall

8.0

Entertainment

6.3

Food

7.3

Comfort

8.0

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.
Bangkok Airways
8.0
Very Good
121 reviews
Bangkok Airways
8.0
Very Good
121 reviews
Check prices

Crew

8.6

Boarding

8.0

Overall

8.0

Entertainment

6.3

Food

7.3

Comfort

8.0

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.
Vietnam Airlines
7.6
Good
224 reviews
Bangkok Airways
8.0
Very Good
121 reviews
Check prices

Crew

8.6

Boarding

8.0

Overall

8.0

Entertainment

6.3

Food

7.3

Comfort

8.0

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.

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?

    A quick flight from Hong Kong to Siem Reap can take about 14h 25m. Cambodia Angkor Air provides one of the quickest options available for as low as HK$2,193. The distance from Hong Kong to Siem Reap is about 1426 km. This flight may include one or multiple stops.

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

    Currently priced at HK$1,862, 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$4,277. Vietnam Airlines is priced at 47% lower than the current average price of a flight leaving 3 months from now.

  • 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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Fly from Hong Kong to Siem Reap on these airlines

Choose from the following airlines for your flight from Hong Kong to Siem Reap. Flights are based on user searches made on Cheapflights and were last updated on 30 January 2026.
Vietnam Airlines flights from Hong Kong Intl to Siem Reap–Angkor Intl

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 30 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Vietnam AirlinesCheapestHK$1,862AverageHK$4,608FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Bangkok AirwaysCheapestHK$4,277AverageHK$4,650FlexibilityNo 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?

Cheapflights makes it easy to find Hong Kong to Siem Reap flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Hong Kong to Siem Reap for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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! Start tracking prices for Hong Kong to Siem Reap flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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