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Cheap flights from Hong Kong to Siem Reap, Cambodia from HK$1,251

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 6-3. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — SAI
15 Mar — 22 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 13 February 2026.

Sat 14-318:40
HKG
-
SAI
1 stop15h 55m
Vietnam Airlines
Sun 29-319:40
SAI
-
HKG
1 stop20h 45m
Vietnam Airlines
Deal found 11-2HK$2,220
Fri 19-621:35
HKG
-
SAI
1 stop14h 15m
Cambodia Angkor Air
Sun 21-617:10
SAI
-
HKG
1 stop26h 25m
Cambodia Angkor Air
Deal found 12-2HK$2,235
Sat 9-518:45
HKG
-
SAI
1 stop24h 55m
Vietnam Airlines
Mon 11-519:40
SAI
-
HKG
1 stop20h 45m
Vietnam Airlines
Deal found 10-2HK$2,298
Fri 8-518:45
HKG
-
SAI
1 stop24h 55m
Vietnam Airlines
Mon 11-518:05
SAI
-
HKG
1 stop18h 25m
Vietnam Airlines
Deal found 10-2HK$2,368
Fri 8-518:45
HKG
-
SAI
1 stop22h 25m
Multiple Airlines
Mon 11-517:20
SAI
-
HKG
2 stops19h 10m
Multiple Airlines
Deal found 10-2HK$2,634
Sat 14-320:20
HKG
-
SAI
2 stops18h 35m
Multiple Airlines
Sun 29-317:10
SAI
-
HKG
1 stop26h 25m
Multiple Airlines
Deal found 11-2HK$2,845
Fri 19-618:45
HKG
-
SAI
2 stops23h 25m
Vietnam Airlines
Sun 21-619:40
SAI
-
HKG
1 stop20h 45m
Vietnam Airlines
Deal found 12-2HK$2,876

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 13 February 2026.

Round-trip from

HK$2,220

One-way from

HK$1,251

Popular in

May

Cheapest in

August

Average price

HK$2,830
Vietnam Airlines
  • Vietnam Airlines
  • 14-3-29-3
  • 2 total stops
  • 36h 40m total
  • Hong Kong to Siem Reap
Search Deals
Cambodia Angkor Air
  • Cambodia Angkor Air
  • 6-3
  • 1 total stop
  • 12h 15m total
  • Hong Kong to Siem Reap
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (HK$9,073 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (HK$2,315 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 70,647 searches. Data last updated 13 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

Departure

Return

Price

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Sat 14-3

18:40-09:35

1 stop15h 55m

Siem Reap–Angkor Intl

Sun 29-3

19:40-17:25

1 stop20h 45m

HK$2,220

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Fri 19-6

21:35-10:50

1 stop14h 15m

Siem Reap–Angkor Intl

Sun 21-6

17:10-20:35

1 stop26h 25m

HK$2,235

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Sat 9-5

18:45-18:40

1 stop24h 55m

Siem Reap–Angkor Intl

Mon 11-5

19:40-17:25

1 stop20h 45m

HK$2,298

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Fri 8-5

18:45-18:40

1 stop24h 55m

Siem Reap–Angkor Intl

Mon 11-5

18:05-13:30

1 stop18h 25m

HK$2,368

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Fri 8-5

18:45-16:10

1 stop22h 25m

Siem Reap–Angkor Intl

Mon 11-5

17:20-13:30

2 stops19h 10m

HK$2,634

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Sat 14-3

20:20-13:55

2 stops18h 35m

Siem Reap–Angkor Intl

Sun 29-3

17:10-20:35

1 stop26h 25m

HK$2,845

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Fri 19-6

18:45-17:10

2 stops23h 25m

Siem Reap–Angkor Intl

Sun 21-6

19:40-17:25

1 stop20h 45m

HK$2,876

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Fri 6-3

21:25-08:40

1 stop12h 15m

HK$1,251

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Wed 11-3

21:25-08:40

1 stop12h 15m

HK$1,258

Hong KongSiem Reap

HKG - SAI

HKGSAI

Hong Kong Intl

Sun 5-4

21:35-14:25

1 stop17h 50m

HK$1,258

Flights are sorted by cheapest return flights first.

Deals found on 10-2

Showing 1-10 of 18 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
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 13 February 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
8.0
Very Good
123 reviews
Check prices

Entertainment

6.3

Comfort

7.9

Crew

8.6

Food

7.3

Boarding

8.0

Overall

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
123 reviews
Bangkok Airways
8.0
Very Good
123 reviews
Check prices

Entertainment

6.3

Comfort

7.9

Crew

8.6

Food

7.3

Boarding

8.0

Overall

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
227 reviews
Bangkok Airways
8.0
Very Good
123 reviews
Check prices

Entertainment

6.3

Comfort

7.9

Crew

8.6

Food

7.3

Boarding

8.0

Overall

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.

  • 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 14h 15m. Vietnam Airlines provides one of the quickest options available for as low as HK$2,235. 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$1,865, 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$4,283. 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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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 13 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Vietnam AirlinesCheapestHK$1,865AverageHK$4,616FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Bangkok AirwaysCheapestHK$4,283AverageHK$4,657FlexibilityNo 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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