Virgin America pilots approached the Air Line Pilots Association regarding membership in the union, according to ALPA President Lee Moak.
Delta, Spirit and Virgin America all declared Friday that they plan on rapid growth in select markets.
Virgin America CEO David Cush says the carrier resembles Spirit in its low costs, all-A320 fleet and point-to-point service. But the models and growth plans differ.
Union leaders at American Airlines are using Delta compensation as examples of where they would like to be. No doubt Delta likes the comparison.
American Airlines' merger with US Airways led to an influx of bigger aircraft at Washington National Airport, at a time when traffic at United's Dulles hub has been falling.
American Airlines' management team has pursued mergers since 2004, always with an eye toward being labor friendly. The results have been mixed.
American Airlines management hit a stumbling block in a merger that until Sunday seemed to be going according to plan. Labor issues also disrupted the same management team's previous merger.
Denver's airport has taken advantage of its United hub to get a 787 flight to Tokyo and a new flight to Panama City. A light rail stop opens in 2016.
Despite falling fuel price, airlines are not reducing ticket prices nor are they rushing to open new routes -- something analysts fear.
Delta reports that revenue per available seat mile rose 3% in October, pushing its share price up. For the month, Delta completed 99.9% of its mainline flights.