The fight took place on a flight from Manchester, England to Barcelona Spain last week.
A passenger on-board took cell phone video of the bride, Kelly Lloyd pounding on one of her bridesmaids, Katrina Hanafin.
"All of a sudden I heard it all kicking off," passenger Tony Tickle began.
"I could see shouting, and it looked like two girls were fighting. Then I saw the bride run along and jump in," he went on.
All the while, Lloyd was wearing her bridal veil.
Hanafin told The Daily Mail "she was shouting that she was going to kill me, and nobody could get her off me. I thought I was going to die.”
Passengers told The Manchester Evening News, the women all appeared to have been drinking before, and possibly during the flight.
Ryanair flight attendants broke up the battle and the women were separated.
Apparently, that wasn’t good enough as reports say the two continued the brawl after the plane landed.
WARNING: The video is below but you may hear profanity.