Flight LH 91 is a scheduled passenger flight operated by Lufthansa, a major German airline. This flight typically connects Frankfurt Airport (FRA) to Los Angeles International Airport (LAX), covering a distance of approximately 5,700 miles. The flight duration is usually around 11 to 12 hours, depending on weather conditions and air traffic. LH 91 is part of Lufthansa's long-haul service, offering various amenities such as in-flight entertainment, meals, and comfortable seating for passengers traveling between Europe and the United States.