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KOS to UGN: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Chicago (Waukegan National Airport)
8,703 mi
14,006 km · 7,563 nm
17h 32m
estimated nonstop flight time
-12h
time difference · heading north
See live KOS→UGN fares Phone-only fares on this route — call free
Flight time details
8,703 miles nonstop takes roughly 17h 32m 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
- UGN — Waukegan National 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 UGN
- ORD · Chicago O'Hare International Airport31 mi away
- ENW · Kenosha Regional Airport12 mi away
- PWK · Chicago Executive Airport21 mi away
- RAC · John H Batten Airport24 mi away
Frequently asked questions
How far is KOS from UGN?
The flight distance from Sihanoukville (KOS) to Chicago (UGN) is 8,703 miles (14,006 km, 7,563 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to UGN?
A nonstop flight takes about 17h 32m 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 UGN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–UGN that never appear on search engines, with no booking fees.