Routes and flights · the DOT's airline reports, August 2025 to July 2026

Luis Munoz Marin International ⇄ Chicago Midway International SJU–MDW

Airlines flew 103 flights between Luis Munoz Marin International SJU in San Juan, PR and Chicago Midway International MDW in Chicago, IL 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 275 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.

103

flights, twelve months

SJU-MDW: 51 · MDW-SJU: 52

15,475

passengers

92% of seats filled

2,057

miles

about 275 minutes airborne

airline

3 aircraft types

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

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.

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.

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: Luis Munoz Marin International SJU and Chicago Midway International MDW; all routes.