Southwest Airlines
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United States
Ontario International Airport
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United States
Midway International Airport
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Scan through all non-stop flights from Ontario to Chicago. The full flight schedule below gives an overview of all non-stop flights from ONT to MDW, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
Known for its continental climate, Chicago features hot, humid summers with temperatures above 30°C (86°F) and cold, snowy winters that often drop below 0°C (32°F). This striking seasonal contrast offers travelers a variety of activities, from summer hiking to winter sports, ensuring year-round appeal.
The best time to visit Chicago is from March to November, covering spring, summer, and fall. While summer can be hot, it also sees slightly more rainfall than other seasons.
Currently, there is only one airline operating non-stop flights from Ontario ONT to Chicago MDW, 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 ONT MDW flight schedule.
Flights from ONT to MDW are operated 7 times a week, with an average of 1 flight per day. All flights depart at 23:55.
On this non-stop route, you can fly in Economy only.
The fastest direct flight from Ontario to Chicago takes 3 hours and 50 minutes. The flight distance between Ontario and Chicago is 1,701 miles (or 2,737 km).
There are 2 airports in Chicago: Midway International Airport (MDW) and O'Hare International Airport (ORD).
There are 7 flights per week flying from Ontario to Chicago (as of April 2026).
3 hours and 50 minutes is the average flight time from Ontario to Chicago.
The distance from Ontario to Chicago is 1,701 miles (2,737 kilometers).
Southwest Airlines is the only airline flying nonstop from Ontario to Chicago.
There are no alliances flying direct from Ontario to Chicago at the moment.
You can fly non-stop in Economy only.
Aircraft types that fly from Ontario to Chicago:
The earliest flight departs at 23:55 from Ontario and arrives at 05:40 at Chicago.
The latest flight departs at 23:55 from Ontario and arrives at 05:40 at Chicago.
1,701 miles (2,737 km) · 3h 50m
23:55
05:40
Southwest Airlines
WN 4134
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
23:55
05:40
Southwest Airlines
WN 3658
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
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