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

Luis Munoz Marin International ⇄ San Antonio International SJU–SAT

Airlines flew 104 flights between Luis Munoz Marin International SJU in San Juan, PR and San Antonio International SAT in San Antonio, TX in the twelve months to July 2026, both directions together: 15,043 passengers in 20,855 seats, 72% of them filled. 2,181 miles, about 283 minutes in the air, on 2 airlines: Spirit Air Lines (102), Eastern Air Express, LLC (EAX) (2). Planning to fly it yourself? The weather and winds along this route right now.

104
flights, twelve months
SJU-SAT: 51 · SAT-SJU: 53
15,043
passengers
72% of seats filled
2,181
miles
about 283 minutes airborne
2
airlines
5 aircraft types

Flights by month both directions

071421281/255/258/2511/2561/26
By month, as a table
flights
1/251
3/2528
4/2527
5/2518
6/2523
7/2518
8/2518
9/2518
10/2516
11/2518
12/2528
1/266

Passengers by month

01,0282,0563,0834,1111/255/258/2511/251,3331/26
By month, as a table
passengers
1/25225
3/253,519
4/252,825
5/252,757
6/253,689
7/253,329
8/252,914
9/252,252
10/252,113
11/252,320
12/254,111
1/261,333

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Spirit Air Lines NK10214,93173%scheduled passenger service
Eastern Air Express, LLC (EAX) 37Q211235%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Airbus Industrie A321-200n472297,864
Airbus Industrie A320-200n281763,391
Airbus Industrie A320-100/200251763,337
Boeing 737-4002160112
Airbus Industrie A321Neoxlr2222339

SJU → SAT this direction alone · flown January 2025 to January 2026

51 flights of 51 scheduled, 7,375 passengers in 10,225 seats. Spirit Air Lines 50; Eastern Air Express, LLC (EAX) 1.

SAT → SJU this direction alone · flown March 2025 to January 2026

53 flights of 53 scheduled, 7,668 passengers in 10,630 seats. Spirit Air Lines 52; Eastern Air Express, LLC (EAX) 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: Luis Munoz Marin International SJU and San Antonio International SAT; all routes.