Austin-Bergstrom to Luis Muñoz Marín
2143 miles great-circle distance, typically flown in 4h 43m with 8 airlines operating direct service from Austin-Bergstrom (AUS) to Luis Muñoz Marín (SJU). Cheapest fares are usually in January (around $249 return), with peak prices in August (around $747). Departures on a Tuesday tend to undercut weekend prices on this corridor.
Flying from Austin-Bergstrom
Arriving in San Juan
San Juan's Luis Muñoz Marín is the busiest airport in the Caribbean and Puerto Rico's primary international gateway. The airport is 8 km east of Old San Juan; AMA bus T5 runs from the airport, but most travellers use rideshare or taxi (~$25 to Old San Juan). US domestic-status flights (no passport required for US citizens) make San Juan one of the easiest Caribbean destinations from any US hub.
Who flies AUS to SJU?
| Airline | IATA | Flight time | Cabin |
| Southwest Airlines | WN | 4h 43m | Economy |
| American Airlines | AA | 4h 43m | Economy |
| Delta Air Lines | DL | 4h 43m | Economy |
| United Airlines | UA | 4h 43m | Economy |
| JetBlue Airways | B6 | 4h 43m | Economy |
| Alaska Airlines | AS | 4h 43m | Economy |
| Spirit Airlines | NK | 4h 43m | Economy |
| Frontier Airlines | F9 | 4h 43m | Economy |
8 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
Best time to fly AUS→SJU
Synthesised from 12-month price aggregates. Cheapest months in green, peak in red.
Estimated baseline. Prices update on a 30-day cadence as Travelpayouts data refreshes. Cheapest day-of-week typically Tuesday.
Austin to San Juan FAQs
Direct flights from Austin-Bergstrom (AUS) to Luis Muñoz Marín (SJU) take approximately 4h 43m for the 2143-mile journey, plus 30–60 minutes of taxi, climb and descent. Total airport-to-airport time depends on cruise winds and air-traffic queueing on approach.
January is typically the cheapest month on this route, with one-way fares from $249. August is the peak — expect prices 2–3× higher. Book 4–8 weeks ahead for best fares; last-minute prices on this corridor rise sharply inside two weeks of departure.
8 carriers operate direct service from Austin-Bergstrom (AUS) to Luis Muñoz Marín (SJU): Southwest Airlines, American Airlines, Delta Air Lines, United Airlines, JetBlue Airways and 3 more. Frequencies vary by season and carrier — Southwest Airlines typically operates the highest weekly count on this corridor.
No — Puerto Rico is domestic travel for US citizens. A US passport is not required for the 50 states, DC or US territories (Puerto Rico, US Virgin Islands, Guam, American Samoa, Northern Mariana Islands), though Real ID-compliant ID is required at TSA from May 2025.
Luis Muñoz Marín (SJU) is the primary international airport for San Juan. Allow 30–60 minutes for the ground transfer by train, express bus, taxi or rideshare depending on traffic and time of day. See the airport's official website for current train and shuttle timetables.