Delta Airlines flight DL-1748 had to return and make an emergency landing in Minneapolis, Minnesota, on April 12th.
The Boeing 757-200 plane took off for Denver, Colorado, but had to turn back due to an engine issue.
The plane landed back safely. All passengers and crew members remained unharmed.

United Airlines flight UA-4204 encountered turbulence on the way to Ronald Reagan Washington National Airport, Virginia, on January 23rd.
S7 Airlines flight S7-1023 had to return and make an emergency landing at Moscow Domodedovo Airport, Russia, on December 23rd.
Swiss Global Air Lines flight LX-528 had to divert and make an emergency landing in Zurich, Switzerland, on June 20th.