Charlotte attorney Harry Marsh and his fiancée, Kaitlin Rush, saw the cockroaches following takeoff on a Sept. 15 flight from Charlotte to Houston with a stopover in Atlanta. According to the couple, flight attendants were too busy to address the problem. Marsh said the cockroaches made them nauseous and reluctant to fly again.
They're claiming mental and emotional distress and seeking more than $100,000, in addition to the price of their tickets.
Air Tran said it cannot comment on pending litigation, but it denies several allegations. According to the airline, cleanliness is important and planes are regularly and professionally treated for bugs.
The Associated Press contributed to this story.