HK ExpressDepart08:10
Thu, 17 DecHKG → KOS
5h 40m · 1 stop
US$207one way, per person
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- Cheapest fare
- US$207
- Cheapest month
- December
- Direct flights
- Not recently
- Quickest trip
- 5h 40m
HK Express · Thu, 17 Dec
from US$207
Usually 1+ stop
1,730 km
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Cheapest month to fly from Hong Kong to Sihanoukville
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in December 2026
The lowest fares we've seen for each day, cheapest first.
See every date in December 2026 →Plan the rest of your trip to Sihanoukville
Where to stay, what to do and getting around, from our travel partners.
Getting around
About flights from Hong Kong to Sihanoukville
Hong Kong (HKG) and Sihanoukville (KOS) are about 1,730 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 5h 40m. Over the next few months, one-way fares start from US$207, and December 2026 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from Hong Kong to Sihanoukville?
The cheapest one-way fare we've seen recently is US$207 with HK Express, departing Thursday, 17 December 2026. Over the coming months, the lowest fare in each month ranges from US$207 to US$244.
What is the cheapest month to fly from Hong Kong to Sihanoukville?
December 2026 currently has the lowest fares, from US$207 one way.
Are there direct flights from Hong Kong to Sihanoukville?
We haven't seen direct fares recently, so most journeys include at least one stop.
How long is the flight from Hong Kong to Sihanoukville?
The quickest journey we've seen takes about 5h 40m. Hong Kong and Sihanoukville are around 1,730 km apart.
Which airlines fly from Hong Kong to Sihanoukville?
Recent fares on this route were with HK Express and AirAsia.
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