Shannon to New York (SNN–JFK) — Airlines, Schedules & Connections

Irish passport holders enter the United States visa-free under the Visa Waiver Program (VWP) for stays up to 90 days. An approved ESTA (Electronic System for Travel Authorization) is required before boarding. The ESTA costs $21, is valid for 2 years or until the passport expires (whichever comes first), and covers multiple entries. Apply at esta.cbp.dhs.gov at least 72 hours before departure, though most approvals come within minutes.

Passport must be an ePassport (biometric chip, all current Irish passports qualify). No supporting documents are formally required for ESTA approval, but CBP officers at the port of entry may ask for proof of onward travel, accommodation details, and sufficient funds. The 90-day VWP stay cannot be extended and does not allow a change of immigration status. If you need more than 90 days, apply for a B-1/B-2 visa at the US Embassy in Dublin (MRV fee $185, interview wait times vary from 1 to 6 weeks).

Direct flights from Dublin to the US serve New York (JFK/EWR), Boston, Chicago, Washington Dulles, Los Angeles, San Francisco, and several others, running 7 to 10 hours. Shannon also has direct US routes. US Customs and Border Protection preclearance operates at Dublin and Shannon, meaning you clear US immigration before boarding and arrive as a domestic passenger. The US dollar is the only currency. No vaccination requirements for Irish arrivals.

AirTrain to Jamaica Station (8–10 min, $8.50) connects to the NYC subway A/E trains and LIRR. Total fare to midtown Manhattan is $9.25 via subway or $10–15 via LIRR; both take 50–70 minutes total. NYC taxis from JFK to Manhattan are metered (flat rate only applies to the Manhattan-to-JFK direction); expect $50–70 plus tolls.Ride-shares from JFK pick up at the designated lot; follow signs rather than waiting at terminal curbs. Car services and shared vans to Manhattan are available from the Ground Transportation desks.

Humid continental climate with hot summers and cold winters. July–August averages 25–32°C with high humidity and frequent afternoon thunderstorms that cause ground delays. Nor'easters hit December through March, occasionally dumping 30–60 cm of snow and causing widespread cancellations. JFK is slower to recover than inland airports due to wind exposure.

Fog is a disruption risk in spring. Fall (September–October) offers the most stable flying weather. Hurricane remnants reach New York in September–October. Sandy-level events are rare but possible.