Aer Lingus Tightens ID Rules on Ireland-UK Routes, Compounding Passport and ETA Demands

Also taking effect on 25 February 2026, Aer Lingus has overhauled its identification policy for flights between the Republic of Ireland and the United Kingdom. Passengers of all nationalities—including Irish and British citizens—must now present a valid passport (or Irish passport card) at check-in; driving licences and other photo IDs are no longer accepted. The carrier said the move aligns it with competitors such as Ryanair and creates a single standard across its network. Although the Common Travel Area (CTA) historically allows UK-Ireland travel without routine border-passport checks, airlines may impose stricter requirements. Aer Lingus staff reported hundreds of last-minute document issues during last year’s peak season, causing delays and denied boarding; the new policy is expected to streamline gate operations and reduce fines for carrying improperly documented passengers. For Brazilian business travellers the change is more than academic. Many use Dublin or Shannon as an entry point to the UK to take advantage of lower airfares or intra-EU connections. They must now travel with a passport, secure the UK ETA in advance, and be prepared to show both at the Irish departure gate—even though neither country stamps passports on CTA sectors. Mobility managers are updating traveller briefings to emphasise that an Irish residency card or EU ID alone will no longer suffice for the final hop to London or Manchester. Companies should also note carve-outs: flights wholly within Northern Ireland or the Republic, and coach/ferry crossings, retain more flexible ID rules. However, Aer Lingus executives hinted that biometric-ready gates could extend the passport-only model to all domestic operations within two years, bringing Ireland into line with Europe’s wider digital-border trend. Failure to carry a passport now triggers denied boarding, re-ticketing costs and potential meeting disruption. HR teams are therefore urged to audit upcoming Ireland-UK itineraries and remind travellers—especially dual Brazilian-EU citizens accustomed to lighter ID—to pack the correct document set.