San Francisco International ⇄ Chicago Midway International SFO–MDW
Airlines flew 964 flights between San Francisco International SFO in San Francisco, CA and Chicago Midway International MDW in Chicago, IL in the twelve months to July 2026, both directions together: 139,949 passengers in 161,840 seats, 86% of them filled, and 283,392 pounds of freight. 1,855 miles, about 217 minutes in the air, on 5 airlines: Southwest Airlines Co. (955), Delta Air Lines Inc. (5), Jet Aviation Flight Services, Inc. (2), Jet Story (1) and 1 more. 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 | 28 |
| 2/25 | 38 |
| 3/25 | 57 |
| 4/25 | 61 |
| 5/25 | 64 |
| 6/25 | 62 |
| 7/25 | 59 |
| 8/25 | 62 |
| 9/25 | 61 |
| 10/25 | 61 |
| 11/25 | 58 |
| 12/25 | 63 |
| 1/26 | 28 |
| 2/26 | 41 |
| 3/26 | 106 |
| 4/26 | 117 |
| 5/26 | 125 |
| 6/26 | 121 |
| 7/26 | 121 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 3,864 |
| 2/25 | 4,667 |
| 3/25 | 8,269 |
| 4/25 | 9,354 |
| 5/25 | 9,888 |
| 6/25 | 9,022 |
| 7/25 | 8,614 |
| 8/25 | 9,358 |
| 9/25 | 8,783 |
| 10/25 | 8,660 |
| 11/25 | 8,398 |
| 12/25 | 9,190 |
| 1/26 | 3,900 |
| 2/26 | 4,625 |
| 3/26 | 14,918 |
| 4/26 | 16,451 |
| 5/26 | 18,226 |
| 6/26 | 18,844 |
| 7/26 | 18,596 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Southwest Airlines Co. WN | 955 | 139,652 | 87% | scheduled passenger service |
| Delta Air Lines Inc. DL | 5 | 218 | 61% | charter passenger service |
| Jet Aviation Flight Services, Inc. 27Q | 2 | 4 | 15% | charter passenger service |
| Jet Story 24Q | 1 | 3 | 21% | charter passenger service |
| United Air Lines Inc. UA | 1 | 72 | 40% | charter passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing B737 Max 800 | 506 | 175 | 75,983 |
| Boeing 737-800 | 283 | 175 | 42,522 |
| Boeing 737-700/700LR/Max 7 | 166 | 140 | 21,147 |
| Boeing 757-200 | 5 | 72 | 218 |
| Gulfstream G450 | 1 | 12 | 2 |
| Gulfstream G650 | 1 | 14 | 2 |
| Dassault Falcon Aviation 6x | 1 | 14 | 3 |
| Boeing B737 Max 900 | 1 | 179 | 72 |
SFO → MDW this direction alone · flown January 2025 to July 2026
482 flights of 485 scheduled, 70,240 passengers in 82,493 seats, 149,911 pounds of freight. Southwest Airlines Co. 476; Jet Aviation Flight Services, Inc. 2; Delta Air Lines Inc. 2; Jet Story 1; United Air Lines Inc. 1.
MDW → SFO this direction alone · flown January 2025 to July 2026
482 flights of 485 scheduled, 69,709 passengers in 79,347 seats, 133,481 pounds of freight. Southwest Airlines Co. 479; Delta Air Lines Inc. 3.
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: San Francisco International SFO and Chicago Midway International MDW; all routes.