Austin (AUS) to San Juan (SJU) flights
Southwest Airlines flies nonstop from Austin Bergstrom International Airport to Luis Munoz Marin International Airport, with about <1 flights a week in July 2026. The 2,146-mile flight takes about 4h 29m gate to gate.
- Distance
- 2,146 mi · 3,454 km
- Flight time
- 4h 29m
- Airlines
- 1
- Seats filled
- 93%
Airlines flying AUS to SJU
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | <1 | Boeing 737-800, Boeing 737 MAX 8, Boeing 737-700 / MAX 7 | 5,244 | 4h 29m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
Is AUS to SJU on time?
From September 2025 to August 2026, 61% of 34 flights arrived within 15 minutes of schedule and 2.9% were cancelled. Most delay time was caused by air traffic control and airport congestion (56%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 34 | 61% | 15 min | 2.9% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 1 | 162 | |
| November 2025 | 4 | 661 | |
| December 2025 | 4 | 638 | |
| February 2026 | 3 | 386 | |
| March 2026 | 4 | 669 | |
| April 2026 | 4 | 615 | |
| May 2026 | 5 | 793 | |
| June 2026 | 4 | 651 | |
| July 2026 | 4 | 669 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.