Atlanta to Ontario (ATL–ONT) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
ATL–ONT is served by 2 airlines with nonstop service. Delta Air Lines and Alaska Airlines lead the route. The flight covers 1,896 miles in approximately 4h 25m. Beyond nonstop, 1-stop connecting options are also available.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| DL Delta Air Lines Also: AF, AM, KL, LA | 20 | 321 | 4h17-4h25 | SkyTeam | AF, AM, KL, LA | |
| AS Alaska Airlines | 0 | – | – | Oneworld | – |
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 Delta Air Lines and Alaska Airlines. With 36 weekly departures, this is a heavily served route.
ATL to ONT Flight Duration and Schedule
Nonstop flight time from ATL to ONT is about 4 hours 25 minutes gate to gate. The route covers a distance of 1,896 miles (3,050 km). There are approximately 36 weekly flights outbound and 84 return, totaling 120 flights per week in both directions.
Connecting Options and Alternatives
1-stop connecting options are also available, commonly via Phoenix Sky Harbor, Harry Reid and Nashville. Two-stop connections are also available via intermediate hubs.