Need help booking?
Unpublished phone-only deals available
SQH to KOS: distance & flight time
Son-La (Na-San Airport) → Sihanoukville (Sihanoukville International Airport)
735 mi
1,184 km · 639 nm
2h 4m
estimated nonstop flight time
Same time
time difference · heading south
See live SQH→KOS fares Phone-only fares on this route — call free
Flight time details
735 miles nonstop takes roughly 2h 4m gate to gate, flying south. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- SQH — Na-San Airport · Son-La, Vietnam
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near SQH
- NEU · Sam Neua Airport55 mi away
- DIN · Dien Bien Phu Airport67 mi away
- HAN · Noi Bai International Airport114 mi away
- XKH · Xieng Khouang Airport135 mi away
Near KOS
- PQC · Phu Quoc International Airport37 mi away
- PNH · Phnom Penh International Airport106 mi away
- VKG · Rach Gia Airport110 mi away
- KZC · Kampong Chhnang Airport132 mi away
Frequently asked questions
How far is SQH from KOS?
The flight distance from Son-La (SQH) to Sihanoukville (KOS) is 735 miles (1,184 km, 639 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SQH to KOS?
A nonstop flight takes about 2h 4m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the cheapest way to fly from SQH to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SQH–KOS that never appear on search engines, with no booking fees.