Need help booking?
Unpublished phone-only deals available
KOS to SUX: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Sioux City (Sioux Gateway Col. Bud Day Field)
8,563 mi
13,781 km · 7,441 nm
17h 15m
estimated nonstop flight time
-12h
time difference · heading north
See live KOS→SUX fares Phone-only fares on this route — call free
Flight time details
8,563 miles nonstop takes roughly 17h 15m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time set-back when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- SUX — Sioux Gateway Col. Bud Day Field · Sioux City, United States
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 SUX
- OFK · Karl Stefan Memorial Airport61 mi away
- YKN · Chan Gurney Municipal Airport62 mi away
- FET · Fremont Municipal Airport66 mi away
- OMA · Eppley Airfield80 mi away
Frequently asked questions
How far is KOS from SUX?
The flight distance from Sihanoukville (KOS) to Sioux City (SUX) is 8,563 miles (13,781 km, 7,441 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to SUX?
A nonstop flight takes about 17h 15m 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 time difference between Sihanoukville and Sioux City?
Sioux City is 12 hours behind Sihanoukville.
What is the cheapest way to fly from KOS to SUX?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–SUX that never appear on search engines, with no booking fees.