Cheap flights from San Diego International to Luis Muñoz Marín
Updated 2026-07-17
3306 miles great-circle distance, typically flown in 7h 03m with 3 airlines operating direct service from San Diego International (SAN) to Luis Muñoz Marín (SJU). Fares on this corridor stay relatively stable across the year — booking 4–8 weeks ahead and choosing a midweek departure typically secures the best price.
Flying from San Diego International
San Diego International is the busiest single-runway commercial airport in the United States, sitting 3 miles from downtown San Diego. MTS Route 992 runs from the terminals directly to downtown in around 15 minutes for $2.50; the future Trolley extension (planned 2027) will provide direct light rail. Southwest and Alaska have the largest schedules; American, Delta and United add full-service capacity. Limited international long-haul — British Airways and Lufthansa serve London and Frankfurt direct.
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 SAN to SJU?
| Airline | IATA | Flight time | Cabin |
| British Airways | BA | 7h 03m | Economy |
| Lufthansa | LH | 7h 03m | Economy |
| Japan Airlines | JL | 7h 03m | Economy |
3 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
San Diego to San Juan FAQs
Direct flights from San Diego International (SAN) to Luis Muñoz Marín (SJU) take approximately 7h 03m for the 3306-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.
3 carriers operate direct service from San Diego International (SAN) to Luis Muñoz Marín (SJU): British Airways, Lufthansa and Japan Airlines. Frequencies vary by season and carrier — British Airways 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.