San Antonio International ⇄ Luis Munoz Marin International SAT–SJU
Airlines flew 104 flights between San Antonio International SAT in San Antonio, TX and Luis Munoz Marin International SJU in San Juan, PR 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 251 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.
Flights by month both directions
By month, as a table
| flights | |
|---|---|
| 1/25 | 1 |
| 3/25 | 28 |
| 4/25 | 27 |
| 5/25 | 18 |
| 6/25 | 23 |
| 7/25 | 18 |
| 8/25 | 18 |
| 9/25 | 18 |
| 10/25 | 16 |
| 11/25 | 18 |
| 12/25 | 28 |
| 1/26 | 6 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 225 |
| 3/25 | 3,519 |
| 4/25 | 2,825 |
| 5/25 | 2,757 |
| 6/25 | 3,689 |
| 7/25 | 3,329 |
| 8/25 | 2,914 |
| 9/25 | 2,252 |
| 10/25 | 2,113 |
| 11/25 | 2,320 |
| 12/25 | 4,111 |
| 1/26 | 1,333 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Spirit Air Lines NK | 102 | 14,931 | 73% | scheduled passenger service |
| Eastern Air Express, LLC (EAX) 37Q | 2 | 112 | 35% | charter passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Airbus Industrie A321-200n | 47 | 229 | 7,864 |
| Airbus Industrie A320-200n | 28 | 176 | 3,391 |
| Airbus Industrie A320-100/200 | 25 | 176 | 3,337 |
| Boeing 737-400 | 2 | 160 | 112 |
| Airbus Industrie A321Neoxlr | 2 | 222 | 339 |
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.
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.
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 Antonio International SAT and Luis Munoz Marin International SJU; all routes.