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ONT to APT: distance & flight time
Ontario (Ontario International Airport) → Jasper (Marion County Brown Field)
1,815 mi
2,921 km · 1,577 nm
4h 2m
estimated nonstop flight time
—
time difference · heading east
See live ONT→APT fares Phone-only fares on this route — call free
Flight time details
1,815 miles nonstop takes roughly 4h 2m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- ONT — Ontario International Airport · Ontario, United States
- APT — Marion County Brown Field · Jasper, 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 APT
- UOS · Franklin County Airport20 mi away
- CHA · Lovell Field22 mi away
- HDI · Hardwick Field44 mi away
- DNN · Dalton Municipal Airport47 mi away
Frequently asked questions
How far is ONT from APT?
The flight distance from Ontario (ONT) to Jasper (APT) is 1,815 miles (2,921 km, 1,577 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to APT?
A nonstop flight takes about 4h 2m 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 cheapest way to fly from ONT to APT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–APT that never appear on search engines, with no booking fees.