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ONT to ATL: distance & flight time
Ontario (Ontario International Airport) → Atlanta (Hartsfield Jackson Atlanta International Airport)
1,895 mi
3,050 km · 1,647 nm
4h 11m
estimated nonstop flight time
+3h
time difference · heading east
See live ONT→ATL fares Phone-only fares on this route — call free
Flight time details
1,895 miles nonstop takes roughly 4h 11m 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
- ATL — Hartsfield Jackson Atlanta International Airport · Atlanta, 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 ATL
- FTY · Fulton County Airport Brown Field11 mi away
- PDK · DeKalb Peachtree Airport18 mi away
- MGE · Dobbins Air Reserve Base20 mi away
- LZU · Gwinnett County Briscoe Field36 mi away
Frequently asked questions
How far is ONT from ATL?
The flight distance from Ontario (ONT) to Atlanta (ATL) is 1,895 miles (3,050 km, 1,647 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to ATL?
A nonstop flight takes about 4h 11m 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 Atlanta?
Atlanta is 3 hours ahead of Ontario.
What is the cheapest way to fly from ONT to ATL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–ATL that never appear on search engines, with no booking fees.