LH 91 is a flight operated by Lufthansa, a major German airline. This flight typically connects Frankfurt Airport (FRA) to Los Angeles International Airport (LAX), providing passengers with a long-haul travel option between Europe and the United States. The aircraft used for LH 91 is often a Boeing 747 or an Airbus A350, both known for their comfort and efficiency. The flight duration is approximately 11 to 12 hours, depending on weather conditions and air traffic, making it a popular choice for travelers seeking to cross the Atlantic.