Groupon, the global marketplace for local services, experiences, and goods, and Points, a leader in powering loyalty commerce, have announced an expansion of Groupon’s existing loyalty program to include Frontier Airlines’ Frontier Miles. This incentivizes customers with airline miles and hotel points for making purchases on Groupon. Groupon’s loyalty program, powered by Points’ Loyalty Commerce Platform, enables U.S. users to earn up to five Frontier Miles per dollar spent for buying eligible....