For most of the past decade, Delta Air Lines has been the unquestioned leader in the commercial aviation industry. The carrier has been the first to innovate in key areas, has drastically reshaped the definition of a successful airline loyalty program through its valuable partnership with American Express,

Throughout the bulk of Delta Air Lines’ past, its presence and growth ambitions were not situated in the Pacific Northwest. As a carrier with East Coast roots, many of Delta’s flights in the west only involved Los Angeles and Salt Lake City in the interior mountain West.

Now's the time to snag a deal with Delta Air Lines' three-day flash sale on award travel to Europe. You'll want to book quickly as this sale only lasts through Thursday, Jan. 30. Airline: Delta Routes: From the continental U.

In addition to new and updated Delta One and Sky Club lounges planned for the year ahead, the airline's stricter access rules for Delta Sky Clubs go into effect February 1. Here’s what to know.

Airlines hope to meet the traveler demand for premium flying, whether by offering more roomier seats in economy or upgrading higher-tier classes.