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CGX to REP: distance & flight time
Chicago (Chicago Meigs Airport) → Siem-reap (Siem Reap International Airport)
8,549 mi
13,759 km · 7,429 nm
17h 14m
estimated nonstop flight time
+12h
time difference · heading north
See live CGX→REP fares Phone-only fares on this route — call free
Flight time details
8,549 miles nonstop takes roughly 17h 14m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time gain when reading arrival times on your ticket.
The two airports
- CGX — Chicago Meigs Airport · Chicago, United States
- REP — Siem Reap International Airport · Siem-reap, 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 CGX
- ORD · Chicago O'Hare International Airport17 mi away
- MDW · Chicago Midway International Airport9 mi away
- GYY · Gary Chicago International Airport20 mi away
- PWK · Chicago Executive Airport23 mi away
Near REP
- BBM · Battambang Airport45 mi away
- KZC · Kampong Chhnang Airport95 mi away
- PXR · Surin Airport103 mi away
- TDX · Trat Airport128 mi away
Frequently asked questions
How far is CGX from REP?
The flight distance from Chicago (CGX) to Siem-reap (REP) is 8,549 miles (13,759 km, 7,429 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CGX to REP?
A nonstop flight takes about 17h 14m 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 Chicago and Siem-reap?
Siem-reap is 12 hours ahead of Chicago.
What is the cheapest way to fly from CGX to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CGX–REP that never appear on search engines, with no booking fees.