The British Airways flight from Naples landed at the airport at about 12.30am on Friday after an emergency was declared.
Gatwick airport said unspecified technical problems were being investigated, and that the plane had been inspected while on the runway.
An easyJet service from Paphos and a TUI flight from Lanarca were diverted to other airports before Gatwick’s stand-by runway was opened.
No-one was injured in the incident and all passengers disembarked the plane a short time later.
A spokeswoman for Gatwick Airport said: “A British Airways flight that was inbound from Naples to London Gatwick landed with a technical fault, which resulted in the aircraft stopping on the runway whilst an inspection of the aircraft took place.
“During this time, our runway remained temporarily unavailable while we switched over to our stand-by runway.
“As a result of the runway being unavailable, a number of aircraft diverted away from Gatwick.”
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