Allegiant Adds 9th St Pete's City

10 News has confirmed that Allegiant Air will announce Wednesday that the airline is adding service from Knoxville to Saint Petersburg, Florida.Allegiant currently offers service through Las Vegas and Orlando.Last week, Allegiant announced that it would begin offering service from Saint Petersburg Airport to 12 cities on November 16th. Officials have not released when the Knoxville flights will begin. 10 News will have more on this story as the information becomes available.