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ONT to CEU: distance & flight time
Ontario (Ontario International Airport) → Clemson (Oconee County Regional Airport)
1,970 mi
3,171 km · 1,712 nm
4h 20m
estimated nonstop flight time
+3h
time difference · heading east
See live ONT→CEU fares Phone-only fares on this route — call free
Flight time details
1,970 miles nonstop takes roughly 4h 20m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time gain when reading arrival times on your ticket.
The two airports
- ONT — Ontario International Airport · Ontario, United States
- CEU — Oconee County Regional Airport · Clemson, 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 ONT
- CCB · Cable Airport6 mi away
- CNO · Chino Airport6 mi away
- LAX · Los Angeles International Airport47 mi away
- RAL · Riverside Municipal Airport11 mi away
Near CEU
- AND · Anderson Regional Airport16 mi away
- TOC · Toccoa Airport - R.G. Letourneau Field24 mi away
- GDC · Donaldson Field Airport30 mi away
- GMU · Greenville Downtown Airport33 mi away
Frequently asked questions
How far is ONT from CEU?
The flight distance from Ontario (ONT) to Clemson (CEU) is 1,970 miles (3,171 km, 1,712 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to CEU?
A nonstop flight takes about 4h 20m 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 Ontario and Clemson?
Clemson is 3 hours ahead of Ontario.
What is the cheapest way to fly from ONT to CEU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–CEU that never appear on search engines, with no booking fees.