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

William P Hobby ⇄ San Diego International HOU–SAN

Airlines flew 1,918 flights between William P Hobby HOU in Houston, TX and San Diego International SAN in San Diego, CA in the twelve months to July 2026, both directions together: 239,644 passengers in 322,183 seats, 74% of them filled, and 360,184 pounds of freight. 1,313 miles, about 177 minutes in the air, on 3 airlines: Southwest Airlines Co. (1,913), Sun Country Airlines d/b/a MN Airlines (4), Delta Air Lines Inc. (1). Planning to fly it yourself? The weather and winds along this route right now.

1,918
flights, twelve months
HOU-SAN: 955 · SAN-HOU: 963
239,644
passengers
74% of seats filled
1,313
miles
about 177 minutes airborne
3
airlines
4 aircraft types

Flights by month both directions

045901361811/254/257/2510/251/264/261777/26
By month, as a table
flights
1/25122
2/25112
3/25152
4/25133
5/25125
6/25166
7/25180
8/25133
9/25119
10/25176
11/25166
12/25181
1/26143
2/26141
3/26167
4/26171
5/26173
6/26171
7/26177

Passengers by month

05,94511,89017,83423,7791/254/257/2510/251/264/2623,7797/26
By month, as a table
passengers
1/2514,904
2/2512,853
3/2517,637
4/2516,139
5/2515,882
6/2521,539
7/2522,958
8/2517,316
9/2515,656
10/2521,145
11/2519,514
12/2521,971
1/2615,622
2/2615,932
3/2621,252
4/2621,464
5/2622,410
6/2623,583
7/2623,779

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Southwest Airlines Co. WN1,913239,39574%scheduled passenger service
Sun Country Airlines d/b/a MN Airlines SY418325%charter passenger service
Delta Air Lines Inc. DL16692%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing B737 Max 800932175118,753
Boeing 737-80060517577,283
Boeing 737-700/700LR/Max 738014043,542
Boeing 757-20017266

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

955 flights of 962 scheduled, 121,380 passengers in 160,960 seats, 221,608 pounds of freight. Southwest Airlines Co. 952; Sun Country Airlines d/b/a MN Airlines 3.

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

963 flights of 962 scheduled, 118,264 passengers in 161,223 seats, 138,576 pounds of freight. Southwest Airlines Co. 961; Delta Air Lines Inc. 1; Sun Country Airlines d/b/a MN Airlines 1.

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: William P Hobby HOU and San Diego International SAN; all routes.