Chicago Midway International ⇄ Luis Munoz Marin International MDW–SJU
Airlines flew 103 flights between Chicago Midway International MDW in Chicago, IL and Luis Munoz Marin International SJU in San Juan, PR in the twelve months to July 2026, both directions together: 15,475 passengers in 16,885 seats, 92% of them filled, and 13,254 pounds of freight. 2,057 miles, about 252 minutes in the air, on 1 airline: Southwest Airlines Co. (103). 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 | 8 |
| 2/25 | 8 |
| 3/25 | 17 |
| 4/25 | 10 |
| 5/25 | 10 |
| 6/25 | 16 |
| 7/25 | 16 |
| 8/25 | 4 |
| 11/25 | 8 |
| 12/25 | 8 |
| 1/26 | 8 |
| 2/26 | 8 |
| 3/26 | 16 |
| 4/26 | 10 |
| 5/26 | 10 |
| 6/26 | 16 |
| 7/26 | 15 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 1,330 |
| 2/25 | 1,166 |
| 3/25 | 2,629 |
| 4/25 | 1,566 |
| 5/25 | 1,538 |
| 6/25 | 2,551 |
| 7/25 | 2,600 |
| 8/25 | 639 |
| 11/25 | 1,133 |
| 12/25 | 1,195 |
| 1/26 | 1,141 |
| 2/26 | 1,157 |
| 3/26 | 2,373 |
| 4/26 | 1,543 |
| 5/26 | 1,696 |
| 6/26 | 2,330 |
| 7/26 | 2,268 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Southwest Airlines Co. WN | 103 | 15,475 | 92% | scheduled passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing B737 Max 800 | 51 | 175 | 8,184 |
| Boeing 737-700/700LR/Max 7 | 30 | 137 | 3,918 |
| Boeing 737-800 | 22 | 175 | 3,373 |
MDW → SJU this direction alone · flown January 2025 to July 2026
52 flights of 53 scheduled, 7,761 passengers in 8,340 seats, 10,563 pounds of freight. Southwest Airlines Co. 52.
SJU → MDW this direction alone · flown January 2025 to July 2026
51 flights of 51 scheduled, 7,714 passengers in 8,545 seats, 2,691 pounds of freight. Southwest Airlines Co. 51.
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: Chicago Midway International MDW and Luis Munoz Marin International SJU; all routes.