Flight attendants and frequent flyers share the best and worst times to use the airplane bathroom—as well as how to avoid long lines and midflight bathroom stress.

Airplane bathrooms are small to maximize passenger space, which means more revenue for airlines. The best time to use the restroom is when the seatbelt sign is off and it's not during a meal or ...

However, there have been no robust scientific studies investigating which seats on an airplane are the safest, Wu said. But based on past plane crashes and knowledge of airplane design, it's possible ...