Ontario International ⇄ Chicago Midway International ONT–MDW
Airlines flew 718 flights between Ontario International ONT in Ontario, CA and Chicago Midway International MDW in Chicago, IL in the twelve months to July 2026, both directions together: 90,313 passengers in 120,386 seats, 75% of them filled, and 141,300 pounds of freight. 1,706 miles, about 203 minutes in the air, on 1 airline: Southwest Airlines Co. (718). Planning to fly it yourself? The weather and winds along this route right now.
Flights by month both directions
By month, as a table
| flights | |
|---|---|
| 1/25 | 55 |
| 2/25 | 52 |
| 3/25 | 62 |
| 4/25 | 60 |
| 5/25 | 62 |
| 6/25 | 60 |
| 7/25 | 62 |
| 8/25 | 60 |
| 9/25 | 61 |
| 10/25 | 62 |
| 11/25 | 57 |
| 12/25 | 62 |
| 1/26 | 55 |
| 2/26 | 55 |
| 3/26 | 61 |
| 4/26 | 59 |
| 5/26 | 63 |
| 6/26 | 60 |
| 7/26 | 63 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 6,417 |
| 2/25 | 5,749 |
| 3/25 | 7,936 |
| 4/25 | 7,201 |
| 5/25 | 8,271 |
| 6/25 | 8,275 |
| 7/25 | 8,240 |
| 8/25 | 7,386 |
| 9/25 | 7,184 |
| 10/25 | 8,382 |
| 11/25 | 6,959 |
| 12/25 | 8,110 |
| 1/26 | 5,926 |
| 2/26 | 5,998 |
| 3/26 | 7,052 |
| 4/26 | 6,753 |
| 5/26 | 7,304 |
| 6/26 | 9,676 |
| 7/26 | 9,583 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Southwest Airlines Co. WN | 718 | 90,313 | 75% | scheduled passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing B737 Max 800 | 334 | 175 | 44,301 |
| Boeing 737-800 | 227 | 175 | 28,772 |
| Boeing 737-700/700LR/Max 7 | 157 | 141 | 17,240 |
ONT → MDW this direction alone · flown January 2025 to July 2026
358 flights of 360 scheduled, 44,930 passengers in 60,410 seats, 120,672 pounds of freight. Southwest Airlines Co. 358.
MDW → ONT this direction alone · flown January 2025 to July 2026
360 flights of 360 scheduled, 45,383 passengers in 59,976 seats, 20,628 pounds of freight. Southwest Airlines Co. 360.
Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Ontario International ONT and Chicago Midway International MDW; all routes.