The cheapest times to fly from HKG to REP are

  • February 5th to March 25th
  • August 6th to January 14th (except the weeks of September 24th, October 1st, December 17th, and December 24th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from HKG to REP is late October to early November. Prices can be as high as $544 for Friday flights during early to mid July, or as low as $141 for Tuesday flights around late October to early November.


When to Fly to Krong Siem Reap

Flying from Hong Kong (HKG) to Siem Reap (REP) will usually cost between $172 to $395 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late October to early November with an average ticket price of $180. Due to high demand the most expensive time to fly is early to mid July, with an average price of $395. Planning your trip to low-cost times can easily save you $216 on economy flights and even more on first-class flights. Generally, any price below $242 can be considered a good price for a round-trip HKG to REP flight.

See below for a graph of average weekly prices for the HKG to REP route. All prices are for round-trip tickets in USD.

HKG to REP Flight Prices

Compared to other flights, the HKG to REP flight is much cheaper than the average and costs much less than the average flight leaving from Hong Kong. The average price per mile (for a direct flight) is $0.17, which is below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Fridays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $85 (26%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $224. Return trip prices are from the REP to HKG flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from HKG to REP can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 2 hour 37 minutes may be realistic.


Flight Questions Answered

Still have questions about flying from HKG to REP? We’ve got answers.

Which airlines fly this route?

You can find 33 major airlines flying this route most often: Air Busan, Air New Zealand, Air Seoul, AirAsia, Asiana, Bangkok Airways, Cambodia Airways, Cambodia Angkor Air, Cathay Dragon, Cathay Pacific, Cebu Pacific, China Airlines, China Eastern, China Southern, El Al, Emirates, EVA Air, Finnair, FlexFlight, Hong Kong Airlines, Hong Kong Express, Jetstar, Lanmei Airlines (Cambodia), Qantas, Shandong, Singapore Airlines, THAI, Thai AirAsia, Thai Smile, VietJet Air, Vietnam Airlines, Virgin Australia, Xiamen, and potentially more during busy seasons.

How far away is it from Siem Reap International Airport to Hong Kong International Airport?

The distance between the two airports is roughly 904 miles or 1455 kilometers.

How long does it take to fly from HKG to REP?

The real-world flight time for a nonstop HKG to REP flight is about 2 hour 37 minutes.

How many flights go between Hong Kong and Siem Reap?

It depends on the day of the week and the date, but a typical day might have around 53 available flights from HKG to REP.


Airport Location Info


Departing Airport

Origination code HKG
Origination airport name Hong Kong International Airport
City Hong Kong
Country Hong Kong
Latitude 22.3
Longitude 113.9

Return Airport

Destination code REP
Destination airport name Siem Reap International Airport
City Siem Reap
Country Cambodia
Latitude 13.4
Longitude 103.8


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.