Delta has had a rough 48 hours over Portugal. For the second day running, one of the US carrier's transatlantic flights has been forced into an emergency landing at a Portuguese airport after a technical problem struck mid-flight.
The latest incident involved a service bound for New York. The aircraft departed Lisbon at 11.26am, and within half an hour things had gone wrong enough that the city's airport emergency plan was activated at 11.50am. The plane landed back on the tarmac shortly afterwards. What exactly went wrong has not been confirmed, and there is no word yet on how many passengers were on board or whether anyone was affected. The day before, Delta flight DL251, flying from Barcelona to Boston, doubled back to Porto's Sá Carneiro Airport after smoke filled the cabin. That one was more serious: several passengers were treated for smoke inhalation, some needing hospital care.
The causes of the Lisbon turnaround remain unclear, with further details expected. Delta, headquartered in Atlanta, Georgia and operating nine US hubs, runs multiple daily crossings between Europe and the States, so these two back-to-back events will attract scrutiny even though emergency landings of this kind remain rare relative to the number of flights operated.
For travellers, the practical takeaway is less about alarm and more about preparedness. A long-haul flight turning back means missed connections, overnight delays and a scramble at the airline's service desk. Under EU rules — which cover flights departing from Portugal and Spain, regardless of the airline — passengers in this situation are typically entitled to assistance like meals and accommodation, and to rerouting or a refund, so keep your booking reference handy and know what you can claim. It is also a reminder that Lisbon and Porto both serve as contingency landing points for transatlantic traffic, which is good news if you are ever on a plane that needs to come down fast: both are full-service international airports with the emergency infrastructure to handle it.
If you are booked on a transatlantic Delta flight from the Iberian peninsula in the coming days, check your flight status before heading to the airport, and keep essentials — medication, chargers, a change of clothes — in your hand luggage rather than the hold, in case a diversion or overnight delay leaves you separated from your checked bag.
