Sihanoukville International Airport in Sihanukville, Cambodia has 7 nonstop destinations in the current FlightQ schedule set. This page ranks the farthest routes by airport-to-airport distance and adds airlines, frequency, and estimated flight time.
Schedule snapshot checked Jun 15, 2026.
The longest listed nonstop flight from KOS is to Wuxi (WUX), about 1,800 miles with an estimated block time of ~4h 18m.
| # | Route | Distance | Est. time | Airlines | Frequency |
|---|---|---|---|---|---|
| 1 | KOS to WUX Wuxi, China | 1,800 mi | ~4h 18m | Ruili | weekly |
| 2 | KOS to CAN Guangzhou, China | 1,090 mi | ~2h 50m | Sky Angkor | 3×/wk |
| 3 | KOS to SZX Shenzhen, China | 1,070 mi | ~2h 48m | Cambodia Angkor Air | weekly |
| 4 | KOS to KMG Kunming, China | 998 mi | ~2h 38m | Ruili | 2×/wk |
| 5 | KOS to KUL Kuala Lumpur, Malaysia | 557 mi | ~1h 44m | AirAsia and Mahogany Air | 1/day |
| 6 | KOS to SGN Ho Chi Minh City, Vietnam | 205 mi | ~1h | Cambodia Angkor Air | 1/day |
| 7 | KOS to SAI Siem Reap, Cambodia | 197 mi | ~59m | Cambodia Angkor Air | 1/day |
Distance is great-circle mileage. Estimated time uses a standard block-time model until a route has enough tracked duration data on its route guide.
The longest nonstop route in FlightQ's current KOS schedule set is KOS to WUX, about 1,800 miles with an estimated block time of ~4h 18m.
Routes are ranked by great-circle distance between the origin and destination airports. Flight times are estimates unless a route page has tracked duration data.
The list is built from FlightQ's current schedule capture. Airlines change timetables often, so always confirm dates and availability before booking.