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CTH to ONT: distance & flight time
Coatesville (Chester County G O Carlson Airport) → Ontario (Ontario International Airport)
2,317 mi
3,729 km · 2,013 nm
5h 1m
estimated nonstop flight time
-3h
time difference · heading west
See live CTH→ONT fares Phone-only fares on this route — call free
Flight time details
2,317 miles nonstop takes roughly 5h 1m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- CTH — Chester County G O Carlson Airport · Coatesville, United States
- ONT — Ontario International Airport · Ontario, 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 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 ONT
- CCB · Cable Airport6 mi away
- CNO · Chino Airport6 mi away
- LAX · Los Angeles International Airport47 mi away
- RAL · Riverside Municipal Airport11 mi away
Frequently asked questions
How far is CTH from ONT?
The flight distance from Coatesville (CTH) to Ontario (ONT) is 2,317 miles (3,729 km, 2,013 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CTH to ONT?
A nonstop flight takes about 5h 1m 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 Coatesville and Ontario?
Ontario is 3 hours behind Coatesville.
What is the cheapest way to fly from CTH to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CTH–ONT that never appear on search engines, with no booking fees.