Shannon
Airport

Yes. Shannon is the only airport in Europe or the Middle East where a private or business aircraft can clear United States customs and immigration before departure. Crew and passengers are processed by US Customs and Border Protection officers at Shannon and the flight arrives in the United States as a domestic arrival, with no inspection on landing.

The general aviation service runs from 09:00 to 17:00 local time daily, and Shannon can extend the hours and provide an out-of-hours service on request. The desk books the extension with the handler at the same time as the preclearance slot, because both need confirming before the aircraft is positioned.

A minimum of 24 hours before the flight, and 48 hours is strongly recommended. eAPIS must be filed at least 24 hours before departure. A short-notice request can sometimes be accommodated inside the published hours, but a late change to the passenger list is the usual reason a booking fails.

A filed eAPIS manifest, the CBP decal number for the aircraft, the general declaration, the full flight schedule with the approved arrival airport, and valid passports with visas or ESTA for every passenger and crew member. The handler collects the file and the desk checks it against the manifest before it is sent.

About 45 to 50 minutes for crew and passengers together. Everyone goes to the CBP office in person, and officers may ask for baggage to be offloaded for inspection, so the plan allows for it even though it is not always required.

No. The flight is precleared to the specific, designated airport approved for it, which must be able to handle international garbage under US Department of Agriculture rules. That is what lets the aircraft use an airport that is not a port of entry. If the flight diverts, it is cleared again on arrival like any international flight.

No. Shannon is not slot coordinated and business aircraft do not need prior permission. Handling is arranged with one of the three handlers, and the airport asks for prior notice for fuel where the operator has no standing arrangement, which the desk gives with the trip.

Runway 06/24 is 3,199 metres by 45, about 10,495 feet by 148, asphalt, at 46 feet elevation. Nothing in business aviation is limited by the runway, and it takes the widebody and heavy charter traffic that uses Shannon as a transatlantic tech stop.

Handling is not mandatory in the sense of a single appointed agent, but every business aircraft uses one. Signature, Universal Aviation and Westair Aviation operate on the field, all around the clock or on request, and the desk appoints one with the fuel and the preclearance booking.

The AFDF is the form the airport requires electronically before an aircraft first arrives, giving the manufacturer serial number, registration, type and ICAO and IATA designators, maximum takeoff weight in kilograms, passenger capacity, engine type, certified noise levels and noise chapter. The airport uses it to calculate and invoice runway and parking charges. The desk files it once per airframe.

It is the classic westbound stop: open 24 hours, customs and immigration on the field at all hours, Category 9 fire cover by day, Jet A-1 and no slot. An eastbound crossing that needs fuel before Europe, or a westbound aircraft that wants to arrive in the United States precleared, both work here without a permit.

Ireland is on Greenwich Mean Time in winter and Irish Standard Time in summer, UTC+0 and UTC+1. Shannon publishes its fire cover and out-of-hours arrangements in UTC, and the desk files eAPIS and the preclearance booking in UTC and confirms the local times back to you, so the offset never lands on the pickup.