Atlanta to Ontario (ATL–ONT) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
ATL–ONT is served by 2 airlines with nonstop service. Delta Air Lines and Aeromexico lead the route. The flight covers 1,896 miles in approximately 4h 30m. Beyond nonstop, 40 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| DL Delta Air Lines | 21 | 321 | 4h30-4h40 | SkyTeam | – | |
| AM Aeromexico | 17 | 321 | 4h40-4h47 | SkyTeam | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Travel Essentials
ATL: EDT · ONT: PDT
When it's 6:00 PM in Atlanta, it's 3:00 PM in Ontario.
MARTA Gold Line runs every 12–15 minutes from downtown Five Points station to the airport (16 min, $2.50). The station connects directly to the Domestic terminal via SkyTrain. Ride-shares cost $20–35 from downtown.
Economy parking in the North/South garages fills quickly; off-site lots on Camp Creek Parkway offer cheaper rates with shuttles.
ATL–ONT Quick Facts
Frequently Asked Questions
Flights from ATL to ONT
Hartsfield Jackson Atlanta International Airport (ATL) and Ontario International Airport (ONT) are connected by nonstop service from Aeromexico and Delta Air Lines. With 38 weekly departures, this is a heavily served route.
ATL to ONT Flight Duration and Schedule
Nonstop flight time from ATL to ONT ranges from 4 hours 30 minutes to 4 hours 47 minutes. The route covers a distance of 1,896 miles (3,050 km). There are approximately 38 weekly flights outbound and 28 return, totaling 66 flights per week in both directions.
Connecting Options and Alternatives
40 one-stop connections are available, with the fastest taking approximately 6 hours via SDF. Two-stop connections are also available via intermediate hubs.