American Football American Est. 1997 Football Urbana Illinios Tee shirt

American Football American Est. 1997 Football Urbana Illinios Tee shirtThe aviation industry loves American Football American Est. 1997 Football Urbana Illinios Tee shirt , but I was surprised to find that the “city codes” you mentioned in your question details even exist. They are almost never used because the 3-letter airport codes provide unique airport identification, making them far more useful for flight schedules and baggage handling.I didn’t choose the codes and can’t say for sure, but I would suggest that the city codes are used pretty much exclusively by customers searching for flights, so repeating the same abbreviation has very little practical impact. Customers can always check the option to consider other regional airports during flight search, which has the same effect as searching for a city code.