Air rage man Mark Turner went berzerk during a flight and headbutted a passenger.
The pilot of the Jet2.com flight radioed in an emergency and was told to fly to Blackpool Airport where it was met by police.
The plane was on its way from Alicante when Turner, 32, lost his temper.
Other passengers started to panic as Turner flung blows on August 9.
He used foul language and then headbutted another passenger – his own brother-in-law.
The captain was alerted to what was going on behind him by cabin staff.
Turner of Chedworth Road,Manchester, had to be calmed down by a female cabin crew member who detained him in the forward galley area.
He was arrested when the plane touched down and admitted assaulting a man in UK air space when he appeared before Blackpool magistrates.
During the flight Turner swore loudly at his father-in-law before turning on his brother-in-law.
Turner and his family were returning from a villa holiday when trouble flared.
Martin Hillson, defending, said: “Turner was in a pressure cooker. There had been friction between himself and members of his family and he exploded. He is now having anger management counselling.”
The court heard Turner had a row with his family at the Spanish airport over the amount of time he spent in the toilet leaving his wife to cope with their children.
Turner was fined £200 and told to pay £85 costs and £65 victims surcharge.He was also placed on 18 months court supervision and told by the judge to apologise to his brother in law.
The defence lawyer said cabin crew member Christine Bradley had to be commended for calming other passengers down.
He added:”The violence only lasted a short time after a verbal exchange.”
Sentencing Turner District Judge Rod Ross:” You clearly lost it and did not realise what danger you put the plane in...what the consequences could have been.”
“Many judges would send you straight to prison but you have shown remorse for endangering the lives of others.”
Turner was fined ?200 and told to pay ?85 costs and ?65 victims surcharge.He was also placed on 18 months supervision and told by the judge to apologise to his brother in law.