Allegiant Air’s Tuesday announcement – that the Las Vegas budget carrier will be debuting nonstop service to both San Juan and Cincinnati out of Raleigh-Durham International Airport– shows budget carriers are paying more attention to Triangle flyers.

At a press conference announcing the deal Tuesday, Kristie Van Auken, RDU’s vice president of communications and community affairs, said the news illustrates Allegiant’s “commitment to taking us on vacation.”

But it also highlights the…