Need help booking?
Unpublished phone-only deals available
KOS to QSI: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Moshi (Moshi Airport)
4,660 mi
7,500 km · 4,050 nm
9h 36m
estimated nonstop flight time
—
time difference · heading west
See live KOS→QSI fares Phone-only fares on this route — call free
Flight time details
4,660 miles nonstop takes roughly 9h 36m gate to gate, flying west. 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
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- QSI — Moshi Airport · Moshi, Tanzania
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 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
Near QSI
- JRO · Kilimanjaro International Airport18 mi away
- ARK · Arusha Airport48 mi away
- ASV · Amboseli Airport50 mi away
- ILU · Kilaguni Airport60 mi away
Frequently asked questions
How far is KOS from QSI?
The flight distance from Sihanoukville (KOS) to Moshi (QSI) is 4,660 miles (7,500 km, 4,050 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to QSI?
A nonstop flight takes about 9h 36m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from KOS to QSI?
Nonstop service on KOS–QSI depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 9h 36m nonstop estimate.
What is the cheapest way to fly from KOS to QSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–QSI that never appear on search engines, with no booking fees.
Why are some KOS to QSI fares phone-only?
Consolidator contracts let us sell certain KOS–QSI tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.