Thai Lion Air flight SL-539 had to divert and make an emergency landing at Chiang Mai International Airport, Chiang Mai, Thailand, on April 10th.
The Boeing 737-900, flying from Chiang Rai to Bangkok, Thailand, was mid-air when the crew reported loss of cabin pressure, prompting the plane to divert.
The plane landed uneventfully.
Two passengers onboard experienced dizziness, whereas the rest remained unharmed.

Germanwings flight 4U-7218 had to return and make an emergency landing in Hamburg, Germany, on January 29th.
Azores Airlines flight S4-321 had to return and make an emergency landing in Lisbon, Portugal, on October 19th.

Horizon Air flight QX-417 made a safe landing after a bird strike in Boise, Idaho, on September 29th.