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CTH to REP: distance & flight time
Coatesville (Chester County G O Carlson Airport) → Siem-reap (Siem Reap International Airport)
8,748 mi
14,078 km · 7,602 nm
17h 37m
estimated nonstop flight time
+12h
time difference · heading north
See live CTH→REP fares Phone-only fares on this route — call free
Flight time details
8,748 miles nonstop takes roughly 17h 37m 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
- CTH — Chester County G O Carlson Airport · Coatesville, 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 CTH
- PHL · Philadelphia International Airport34 mi away
- ILG · New Castle Airport25 mi away
- LNS · Lancaster Airport25 mi away
- RDG · Reading Regional Carl A Spaatz Field28 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 CTH from REP?
The flight distance from Coatesville (CTH) to Siem-reap (REP) is 8,748 miles (14,078 km, 7,602 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CTH to REP?
A nonstop flight takes about 17h 37m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from CTH to REP?
Nonstop service on CTH–REP depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 17h 37m nonstop estimate.
What is the time difference between Coatesville and Siem-reap?
Siem-reap is 12 hours ahead of Coatesville.
What is the cheapest way to fly from CTH to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CTH–REP that never appear on search engines, with no booking fees.
Why are some CTH to REP fares phone-only?
Consolidator contracts let us sell certain CTH–REP tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.