Originally Posted by
CPRich
Perhaps when airline systems were written eons ago, memory was so valuable that they decided there was next to zero chance that the same flight/gate/date/time would exist in future years, so they saved space. Y2K-style.
Could be.
I do find it interesting that some recent boarding passes lack the year of the flight, but the printed bag tags for the same flight do include the year.
Different programming, maybe?