The 53-year-old actor was politely asked to leave the aircraft when he refused to end an important game of Words With Friends while the plane was at the gate.
At least, that's what he claims.
After the incident, Baldwin tweeted, "Flight attendant on American reamed me out 4 playing WORDS W FRIENDS while we sat at the gate, not moving #nowonderamericaairisbankrupt."
However, other passengers have reportedly come forward claiming a severe case of door-slamming was the straw that broke the captain's back.
TMZ report that Alec was enraged by the flight attendant's request to turn off his iPhone and slammed the toilet door so loudly that the captain called to find out what was occurring.
And it's rumoured the 30 Rock star's removal was prompted by the captain himself.
Baldwin boarded a later flight but couldn't resist tweeting, "#theresalwaysunited Last flight w American. Where retired Catholic school gym teachers from the 1950's find jobs as flight attendants."