The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

Detroit Metro Wayne County ⇄ Luis Munoz Marin International DTW–SJU

Airlines flew 706 flights between Detroit Metro Wayne County DTW in Detroit, MI and Luis Munoz Marin International SJU in San Juan, PR in the twelve months to July 2026, both directions together: 112,682 passengers in 127,494 seats, 88% of them filled, and 47,399 pounds of freight. 1,930 miles, about 235 minutes in the air, on 2 airlines: Delta Air Lines Inc. (638), Spirit Air Lines (68). Planning to fly it yourself? The weather and winds along this route right now.

706
flights, twelve months
DTW-SJU: 353 · SJU-DTW: 353
112,682
passengers
88% of seats filled
1,930
miles
about 235 minutes airborne
2
airlines
6 aircraft types

Flights by month both directions

02958861151/254/257/2510/251/264/26617/26
By month, as a table
flights
1/2577
2/2564
3/2572
4/2564
5/2562
6/2583
7/25115
8/2576
9/2541
10/2526
11/2551
12/2586
1/2668
2/2656
3/2660
4/2659
5/2662
6/2660
7/2661

Passengers by month

04,2618,52212,78217,0431/254/257/2510/251/264/2610,1387/26
By month, as a table
passengers
1/2511,344
2/259,769
3/2512,152
4/2510,450
5/2510,137
6/2513,282
7/2517,043
8/2512,185
9/256,270
10/254,149
11/257,911
12/2512,677
1/2611,112
2/269,124
3/2610,131
4/269,501
5/269,901
6/269,583
7/2610,138

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Delta Air Lines Inc. DL638102,29190%scheduled passenger service
Spirit Air Lines NK6810,39179%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing 737-900ER61018098,497
Boeing 737-800281603,794
Airbus Industrie A320-200n241763,630
Airbus Industrie A321-200n222293,553
Airbus Industrie A320-100/200201762,859
Airbus Industrie A321Neoxlr2222349

DTW → SJU this direction alone · flown January 2025 to July 2026

353 flights of 358 scheduled, 55,726 passengers in 63,753 seats, 46,671 pounds of freight, 47,181 pounds of mail. Delta Air Lines Inc. 319; Spirit Air Lines 34.

SJU → DTW this direction alone · flown January 2025 to July 2026

353 flights of 359 scheduled, 56,956 passengers in 63,741 seats, 728 pounds of freight, 304 pounds of mail. Delta Air Lines Inc. 319; Spirit Air Lines 34.

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: Detroit Metro Wayne County DTW and Luis Munoz Marin International SJU; all routes.