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CWI to ONT: distance & flight time
Clinton (Clinton Municipal Airport) → Ontario (Ontario International Airport)
1,572 mi
2,530 km · 1,366 nm
3h 33m
estimated nonstop flight time
-2h
time difference · heading west
See live CWI→ONT fares Phone-only fares on this route — call free
Flight time details
1,572 miles nonstop takes roughly 3h 33m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- CWI — Clinton Municipal Airport · Clinton, 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 CWI
- MLI · Quad City International Airport28 mi away
- DBQ · Dubuque Regional Airport44 mi away
- GBG · Galesburg Municipal Airport62 mi away
- IOW · Iowa City Municipal Airport64 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 CWI from ONT?
The flight distance from Clinton (CWI) to Ontario (ONT) is 1,572 miles (2,530 km, 1,366 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CWI to ONT?
A nonstop flight takes about 3h 33m 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 Clinton and Ontario?
Ontario is 2 hours behind Clinton.
What is the cheapest way to fly from CWI to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CWI–ONT that never appear on search engines, with no booking fees.