Frontier's new offer features Denver, Las Vegas, Cancun, and San Jose. The sale prices are competitive, but you should still shop around to ensure you get the best deal for your route.
United's new deal highlights Charlotte, Savannah, Chicago, and San Francisco. Other airlines are competing with United for many of the routes in this sale, so be sure to shop around.
Frontier's deal features spring flights between Denver and cities in Colorado and Wyoming. This sale is worth a look, but you should compare fares before you book.
