Airlines at Luis Munoz Marin International Airport (SJU)
San Juan, Puerto Rico TJSJ #38 US airport by passengers
Airlines operating at SJU, ranked by number of departures.
On-time performance at SJU
Based on 9,296 departures from May 2026 to July 2026. A flight counts as late when it leaves 15 or more minutes after schedule.
21.9%Departures late
26.8%Arrivals late
1.41%Cancelled
17.8 minAverage departure delay
| Airline | Departures | Late |
|---|---|---|
| JetBlue Airways | 3,465 | 25.9% |
| Frontier Airlines | 1,475 | 21.2% |
| American Airlines | 1,244 | 19.4% |
| Southwest Airlines | 1,201 | 28.8% |
| United Airlines | 991 | 14.1% |
| Delta Air Lines | 911 | 10.4% |
Source: Bureau of Transportation Statistics, On-Time Performance of reporting carriers. Smaller regional carriers and some airlines are not included.
Airline presence
JetBlue is the main carrier in Terminal A. American, Delta, Frontier, Southwest, Spirit and United check in at Terminal B. Regional carriers such as Cape Air and interCaribbean Airways also use the airport.