Southwest Airlines
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United States
Midway International Airport
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United States
Ontario International Airport
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Scan through all non-stop flights from Chicago to Ontario. The full flight schedule below gives an overview of all non-stop flights from MDW 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 Chicago MDW to Ontario ONT, which is Southwest Airlines. 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 MDW ONT flight schedule.
Flights from MDW to ONT are operated 7 times a week, with an average of 1 flight per day. Departure times vary between 10:20 - 22:15. The earliest flight departs at 10:20, the last flight departs at 22:15. 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.
On this non-stop route, you can fly in Economy only.
The fastest direct flight from Chicago to Ontario takes 4 hours and 5 minutes. The flight distance between Chicago and Ontario is 1,701 miles (or 2,737 km).
There is 1 airport in Ontario: Ontario International Airport (ONT).
There are 7 flights per week flying from Chicago to Ontario (as of April 2026).
4 hours and 5 minutes is the average flight time from Chicago to Ontario.
The distance from Chicago to Ontario is 1,701 miles (2,737 kilometers).
Southwest Airlines is the only airline flying nonstop from Chicago to Ontario.
There are no alliances flying direct from Chicago to Ontario at the moment.
You can fly non-stop in Economy only.
Aircraft types that fly from Chicago to Ontario:
The earliest flight departs at 10:20 from Chicago and arrives at 12:40 at Ontario.
The latest flight departs at 22:15 from Chicago and arrives at 00:25 at Ontario.
1,701 miles (2,737 km) · 4h 5m
10:20
12:40
Southwest Airlines
WN 3123
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
11:00
13:15
Southwest Airlines
WN 3332
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
11:00
13:15
Southwest Airlines
WN 3332
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
11:50
14:10
Southwest Airlines
WN 3123
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
11:50
14:10
Southwest Airlines
WN 3123
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
15:20
17:35
Southwest Airlines
WN 3332
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
21:35
23:55
Southwest Airlines
WN 3123
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
21:50
00:10
Southwest Airlines
WN 3332
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
21:55
00:15
Southwest Airlines
WN 3123
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
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