Delta
SkyTeam
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United States
Hartsfield–Jackson Atlanta Inte
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United States
Ontario International Airport
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Scan through all non-stop flights from Atlanta to Ontario. The full flight schedule below gives an overview of all non-stop flights from ATL to ONT, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
In Ontario, the summers are known for being warm, long, and dry, with temperatures typically reaching about 30°C (86°F). The area’s breathtaking scenery complements the sun-filled lifestyle, making it a popular destination for visitors all year round who are looking for relaxation, fun by the water, and the beauty of the outdoors.
Ontario is best explored from mid-spring to summer, specifically between April and September, as most rainfall occurs from October to February.
Currently, there is only one airline operating non-stop flights from Atlanta ATL to Ontario ONT, which is Delta. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.
Click an airline below to view their ATL ONT flight schedule.
Flights from ATL to ONT are operated 18 times a week, with an average of 3 flights per day. Departure times vary between 09:15 - 20:30. The earliest flight departs at 09:15, the last flight departs at 20:30. However, this depends on the date you are flying so please check with the full flight schedule above to see which departure times are available on your preferred date(s) of travel.
You can fly in Economy and Business Class. Premium Economy and First Class are not available on this route (at least not as a non-stop flight).
The fastest direct flight from Atlanta to Ontario takes 4 hours and 50 minutes. The flight distance between Atlanta and Ontario is 1,894 miles (or 3,048 km).
There is 1 airport in Ontario: Ontario International Airport (ONT).
There are 18 flights per week flying from Atlanta to Ontario (as of April 2026).
4 hours and 50 minutes is the average flight time from Atlanta to Ontario.
The distance from Atlanta to Ontario is 1,894 miles (3,048 kilometers).
Delta is the only airline flying nonstop from Atlanta to Ontario.
SkyTeam is currently the only alliance flying nonstop from Atlanta to Ontario.
You can fly non-stop in Economy and Business Class.
Aircraft types that fly from Atlanta to Ontario:
The earliest flight departs at 09:15 from Atlanta and arrives at 10:40 at Ontario.
The latest flight departs at 20:30 from Atlanta and arrives at 21:56 at Ontario.
1,894 miles (3,048 km) · 4h 50m
09:53
11:36
Delta
SkyTeam
DL 665
Delta
Airbus A321-100/200
Y
W
J
F
09:57
11:47
Delta
SkyTeam
DL 665
Delta
Airbus A321-100/200
Y
W
J
F
16:53
18:33
Delta
SkyTeam
DL 2891
Delta
Airbus A321-100/200
Y
W
J
F
19:14
21:00
Delta
SkyTeam
DL 761
Delta
Airbus A321-100/200
Y
W
J
F
19:14
21:00
Delta
SkyTeam
DL 761
Delta
Airbus A321-100/200
Y
W
J
F
19:14
21:00
Delta
SkyTeam
DL 761
Delta
Airbus A321-100/200
Y
W
J
F
19:14
21:00
Delta
SkyTeam
DL 761
Delta
Airbus A321-100/200
Y
W
J
F
19:20
21:00
Delta
SkyTeam
DL 779
Delta
Airbus A321-100/200
Y
W
J
F
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