American Airlines flight AA-9240 had to return and make an emergency landing in Phoenix, Arizona, on January 3rd.
The Airbus A321-200 plane took off for John F. Kennedy International Airport, New York, but had to turn back due to smoke in the cabin.
The plane landed back safely. All passengers and crew members remained unharmed.

Aer Lingus flight EI-845 had to divert and make an emergency landing in Cardiff, Wales, United Kingdom, on October 12th.
EasyJet flight U2-1110 had to return and make an emergency landing in Thessaloniki, Greece, on May 30th.