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KOS to ORD: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Chicago (Chicago O'Hare International Airport)
8,732 mi
14,053 km · 7,588 nm
17h 35m
estimated nonstop flight time
-12h
time difference · heading north
See live KOS→ORD fares Phone-only fares on this route — call free
Flight time details
8,732 miles nonstop takes roughly 17h 35m 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
- ORD — Chicago O'Hare International Airport · Chicago, 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 ORD
- PWK · Chicago Executive Airport9 mi away
- MDW · Chicago Midway International Airport15 mi away
- CGX · Chicago Meigs Airport17 mi away
- DPA · Dupage Airport18 mi away
Frequently asked questions
How far is KOS from ORD?
The flight distance from Sihanoukville (KOS) to Chicago (ORD) is 8,732 miles (14,053 km, 7,588 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to ORD?
A nonstop flight takes about 17h 35m 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 Chicago?
Chicago is 12 hours behind Sihanoukville.
What is the cheapest way to fly from KOS to ORD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–ORD that never appear on search engines, with no booking fees.