Cheap flights from Hong Kong to Siem Reap
One-way fares from $182, found recently by travellers. Plus what 5 days in Siem Reap costs once you land.
Cheapest dates we found
- 8 Dec2026HKG → SAIHK Express · 1 stop · 4h$182one way
- 14 Nov2026HKG → SAI9G · 1 stop · 3h 50m$183one way
- 7 Nov2026HKG → SAI9G · 1 stop · 3h 50m$186one way
- 4 Dec2026HKG → SAIHK Express · 1 stop · 4h$188one way
- 15 Nov2026HKG → SAIHK Express · 1 stop · 4h$188one way
- 13 Nov2026HKG → SAIHK Express · 1 stop · 4h$189one way
- 27 Nov2026HKG → SAIHK Express · 1 stop · 4h$190one way
- 26 Nov2026HKG → SAI9G · 1 stop · 3h 50m$193one way
One-way economy prices travellers found on Aviasales in the last few days. They change often, so open a fare to see today's price.
Lowest fare by month
Lowest one-way fare seen for each month. Months with no price had no recent searches.
Airlines on this route
Recent cheap fares were with HK Express, 9G, Vietnam Airlines, Thai Lion Air, Cambodia Angkor Air. Low-cost airlines often charge extra for checked bags and seats, so compare the full price.
When to go to Siem Reap
November to March (dry and cooler). April and May are extremely hot; June to October is the green season.
Money-saving tips for Siem Reap
- US dollars are used everywhere; small change comes back in Cambodian riel.
- Hire a tuk-tuk for the day for the Angkor temples and agree the route and price first.
- Buy the Angkor pass only at the official ticket office or online.
Questions
How much is a flight from Hong Kong to Siem Reap?
The cheapest one-way fare we found recently was $182 with HK Express on 8 Dec 2026. Most of the fares we saw were between $182 and $193 one way. Prices change daily, so open the fare to see today's price.
How long is the flight from Hong Kong to Siem Reap?
The quickest flight in our recent results took 3h 40m with 1 stop.
Are there direct flights from Hong Kong to Siem Reap?
The cheapest fares we found all had at least one stop. Non-stop flights may exist at higher prices, so check the flight search.
What is the cheapest month to fly from Hong Kong to Siem Reap?
In our recent results, December had the lowest fare ($182 one way). This is based on prices other travellers found, not a forecast.
How much money do I need for 5 days in Siem Reap?
About $200 for one backpacker, or $845 for two people travelling mid-range (hotel, food, transport and sights, flights not included). Add about $364 per person for a return flight from Hong Kong.
More flights from Hong Kong
- Return: Siem Reap → Hong Kong
- Hong Kong → Bangkok
- Hong Kong → Chiang Mai
- Hong Kong → Phuket
- Hong Kong → Bali
- Hong Kong → Kuala Lumpur
- Hong Kong → Penang
- Hong Kong → Singapore
- Hong Kong → Hanoi
- All flights from Hong Kong
Fly to Siem Reap from
- Bangkok
- Chiang Mai
- Phuket
- Bali
- Kuala Lumpur
- Penang
- Singapore
- Hanoi
- Ho Chi Minh City
- Da Nang
- Taipei
- Seoul
- Tokyo
- Osaka
- Jakarta
- Manila
Fares are recent prices found by travellers, cached for a few hours. Trip costs are planning estimates checked 2026-10-11. Always confirm the final price when you book. Some links are affiliate links; they never change your price.