Dublin to San Juan (DUB–SJU) — Airlines, Schedules & Connections

Puerto Rico is a US territory, so Irish passport holders need either an ESTA or a US visa to enter. The ESTA costs $21, is valid for 2 years, and allows stays of up to 90 days per visit under the Visa Waiver Program. Apply at esta.cbp.dhs.gov at least 72 hours before travel. If denied, a B-1/B-2 tourist visa from the US Embassy in Dublin is required ($185 application fee, 2 to 4 week processing).

Passport must be valid for the duration of the stay (6 months recommended). ESTA requires a machine-readable passport. At immigration in Puerto Rico (or at the US mainland connecting airport), expect fingerprints and a photo. Bring a return or onward ticket, proof of accommodation, and evidence of sufficient funds. If connecting through a US mainland airport, you clear US immigration there, not in San Juan.

No direct flights connect Dublin to San Juan. Connections through New York JFK, Miami, or Newark take 11 to 15 hours total. US customs and immigration are cleared at the first US airport. Puerto Rico uses the US dollar. No mandatory vaccinations for Irish arrivals. The island is on Atlantic Standard Time (AST, UTC minus 4) year-round and does not observe daylight saving time. Tap water is safe in San Juan and metro areas.

Dublin Bus route 747 (Airlink) runs from the city centre (O'Connell Street) to the airport in 30–50 minutes, costing €7 one-way or €12 return. DART rail does not serve the airport directly; the nearest station requires a bus connection. Ride-shares from the city centre typically cost €20–35 depending on traffic.

The M50 and M1 motorways feed into the airport; short-term parking in Terminal 1 or 2 costs from €4/30 min, while long-stay lots (P3/P4) are significantly cheaper for multi-day trips. Allow extra time during morning and evening rush hours on the M50.