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

San Diego International ⇄ Detroit Metro Wayne County SAN–DTW

Airlines flew 2,549 flights between San Diego International SAN in San Diego, CA and Detroit Metro Wayne County DTW in Detroit, MI in the twelve months to July 2026, both directions together: 384,460 passengers in 485,273 seats, 79% of them filled, and 77,818 pounds of freight. 1,956 miles, about 227 minutes in the air, on 3 airlines: Delta Air Lines Inc. (2,476), Spirit Air Lines (71), Alaska Airlines Inc. (2). Planning to fly it yourself? The weather and winds along this route right now.

2,549
flights, twelve months
SAN-DTW: 1,278 · DTW-SAN: 1,271
384,460
passengers
79% of seats filled
1,956
miles
about 227 minutes airborne
3
airlines
10 aircraft types

Flights by month both directions

0661321982641/254/257/2510/251/264/262177/26
By month, as a table
flights
1/25154
2/25138
3/25177
4/25204
5/25217
6/25249
7/25264
8/25259
9/25231
10/25236
11/25213
12/25218
1/26183
2/26166
3/26181
4/26212
5/26222
6/26211
7/26217

Passengers by month

010,53021,06031,59142,1211/254/257/2510/251/264/2637,5837/26
By month, as a table
passengers
1/2523,236
2/2519,972
3/2526,251
4/2529,271
5/2530,980
6/2538,578
7/2542,121
8/2540,815
9/2533,406
10/2535,593
11/2530,601
12/2530,540
1/2624,585
2/2623,963
3/2628,058
4/2630,226
5/2632,706
6/2636,384
7/2637,583

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Delta Air Lines Inc. DL2,476376,10480%scheduled passenger service
Spirit Air Lines NK718,07864%scheduled passenger service
Alaska Airlines Inc. AS227882%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Airbus Industrie A321Neoxlr1,893189279,739
Airbus Industrie A321-200n28119445,005
Boeing 757-20015819927,577
Boeing 737-900ER9718014,923
Airbus Industrie A320-100/200571756,106
Boeing 757-300462348,766
Airbus Industrie A320-200n141761,980
Airbus Industrie A3191132119
Boeing B737 Max 8001161102
Boeing 737-8001160143

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

1,278 flights of 1,289 scheduled, 189,348 passengers in 243,062 seats, 58,979 pounds of freight, 117,646 pounds of mail. Delta Air Lines Inc. 1,240; Spirit Air Lines 36; Alaska Airlines Inc. 2.

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

1,271 flights of 1,289 scheduled, 195,112 passengers in 242,211 seats, 18,839 pounds of freight, 121,238 pounds of mail. Delta Air Lines Inc. 1,236; Spirit Air Lines 35.

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 Diego International SAN and Detroit Metro Wayne County DTW; all routes.