járatszám

Járatszám is the designation used to identify a specific transport service in a timetable or information system. It is assigned by the operator and serves to distinguish one trip from others on the same route or line. The concept applies across transport modes, including aviation, rail, bus, and maritime services.

In aviation, the term is commonly described as a flight number. It typically consists of the IATA airline designator (two letters) followed by up to four digits, and sometimes a suffix letter. The flight number is used in reservations, check-in, boarding, and live status information to identify a particular flight, even if it shares the same route with other services. Examples include LH 400 or BA 178.

In rail and road, the format varies by operator. Trains or buses may carry a service or route number that includes an operator code and a numeric identifier or simply a two- or three-digit route number. The járatszám helps passengers and staff distinguish between services on the same corridor, such as express versus local trains, or weekday versus weekend bus services. Timetables, platform displays, and onboard screens typically present the járatszám.

Importance and usage: The járatszám is essential for ticketing, reservation records, and real-time updates. Passengers rely on it to confirm the correct service, report delays or changes, and navigate connections. Operators may adjust numbers when schedules change or consolidations occur.