Airbus SEDelta Air Lines

Delta Air Lines A330 from Barcelona to Boston makes emergency landing in Porto, Portugal, after smoke detected in cabin; four passengers taken to hospital

A Delta Air Lines A330 from Barcelona to Boston made an emergency landing in Porto, Portugal, after smoke was detected in the cabin. Four passengers were hospitalized for smoke inhalation, while 14 others received assistance upon landing safely at Porto airport, according to civil protection services.

The Aviation Hub+1 source27 September 2026 · 23:47 UTC
CuriousCats Full Story

Delta flight DL251, an Airbus A330-300, departed Barcelona at 1541 local time, nearly 30 minutes late, and was en route to Boston when it detected smoke in the cabin. The crew declared an emergency and diverted to Porto, landing safely at just before 1800 Zulu time.13

The civil protection service reported that 14 passengers required assistance after the landing, with four taken to the hospital for smoke inhalation, though they were described as only “slightly” affected.

The cause of the smoke remains unclear, and the incident has raised concerns about passenger safety on commercial flights. The aircraft, registered as N824NW, is 11.3 years old and has been with Delta since June 2015. The flight was carrying 296 passengers when the emergency was declared, and the crew's quick response ensured a safe landing without further incident.8910

As investigations continue, Delta Air Lines has not yet released a statement regarding the incident, leaving many questions unanswered about the safety protocols in place for such emergencies.

Key Insight
“The aircraft, an 11.3-year-old Airbus A330-300 (N824NW), had 296 passengers aboard when it diverted. Four were hospitalized for smoke inhalation but only 'lightly' affected, while 14 total needed help after landing.”
CuriousCats studied:
1
The Aviation Hub
“In the last few moments, a Delta Air Lines Airbus A330 from Barcelona to Boston has declared an emergency.”
The Aviation Hub →
2
CTV News
“A Delta Air Lines jet made an emergency landing at Porto airport in Portugal Sunday after smoke was detected in the cabin and four passengers were treated in hospital, the civil protection service said.”
CTV News →
Ask CuriousCats
What caused the smoke in the cabin?
Who were the passengers taken to hospital?
How did the crew handle the emergency?
Are similar incidents frequent with Airbus A330?
How does Delta's safety record compare to others?
Get your CIA-level briefing,
in real time.
CuriousCats monitors the internet every minute for you and brings you the most personalized brief of videos, social media posts, news and more.
Download the App
One story brought you here.
CuriousCats brings you everything else worth knowing.
Get CuriousCats