San Juan Airport (SJU) Public & Private Bus Transfers

San Juan Airport bus service is available, if you have lots of patience.

Public bus B-40 runs to Rio Piedras. From here you can connect onward to your final destination in San Juan city with a local bus - or elsewhere on the island with a público (tip: this is best attempted in the morning only). Note that buses stop running at 20:00.

The bus stops are marked "PARADA". When you see your bus coming, be sure to wave it down otherwise it may just drive right by.

Contrary to what bus schedules say (even ones posted at the bus stops themselves) that state buses may arrive every 15 minutes or so, this is not true in reality. Service can be infrequent and very unpredictable. Expect to between 10 to 90 minutes for a bus to arrive, and rush hour buses can be very full. Also, traffic gets very heavy heading into Old San Juan, so you still are not guaranteed a quick trip.

Tip: if you are planning to return to the airport by bus, be aware that some bus drivers may not let you board the bus with carry-on baggage (this seems to be less of a problem taking the bus from the San Juan Airport).

Tip: There is a free trolley bus that runs in the Old San Juan - look out for the numbered signs.