According to the study Twittairport, undertaken by the website solterbeck.net - LAX went from 30,404 to 57,648 followers.
Followers to LAX surged after a suspect went on a shooting spree killing a federal security agent and wounding other people inside a terminal on November 2.
Twittairport analysed the 618 accounts for November of airports across the globe, which tweet and have accounts.
London Heathrow was top with 185,654 followers, a rise of 8.23% on the 179,530 followers in October.
The study says Gatwick Airport has the second highest number of followers with 93,826, an increase of 4.16% on October.
Other airports making the top ten were Dublin Airport in seventh with 48,054, while Dubai Airports was eighth with 41,455.
Twittairport says airports across the 618 accounts in November had a combined 2,254,737 followers up on the 2,045,018 in October, a rise of 5.39%.