Need help booking?
Unpublished phone-only deals available
OTM to KOS: distance & flight time
Ottumwa (Ottumwa Regional Airport) → Sihanoukville (Sihanoukville International Airport)
8,721 mi
14,036 km · 7,579 nm
17h 34m
estimated nonstop flight time
—
time difference · heading north
See live OTM→KOS fares Phone-only fares on this route — call free
Flight time details
8,721 miles nonstop takes roughly 17h 34m gate to gate, flying north. 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
- OTM — Ottumwa Regional Airport · Ottumwa, United States
- 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 OTM
- IOW · Iowa City Municipal Airport59 mi away
- CID · The Eastern Iowa Airport66 mi away
- DSM · Des Moines International Airport70 mi away
- IRK · Kirksville Regional Airport70 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 OTM from KOS?
The flight distance from Ottumwa (OTM) to Sihanoukville (KOS) is 8,721 miles (14,036 km, 7,579 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OTM to KOS?
A nonstop flight takes about 17h 34m 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 OTM to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OTM–KOS that never appear on search engines, with no booking fees.