Southwest Airlines

The Dallas-based carrier hopes to return to profitability with its new assigned seating model and a handful of new red-eye flights.

The Dallas-based airline filed a lawsuit on Thursday against the City of San Antonio over disputes in a long-term lease agreement with the San Antonio International Airport.

Southwest President and CEO Bob Jordan says research shows passengers 'overwhelmingly prefer' an assigned-seat system. He also pledged to improve the airline's financial performance.

TWU Local 556 says the union's executive board will send the tentative agreement to its members March 25.

The Southwest Airlines Pilots Association's board approved a tentative agreement in December, which more than 92% of participating union members voted to ratify, SWAPA announced Monday.

The U.S. Transportation Department has levied a $140 million fine on Southwest. It comes after the airline's meltdown last year that led to thousands of canceled flights and many stranded passengers.

A major blizzard last December forced Southwest Airlines to cancel more than 16,000 flights, stranding passengers across the country. But the airline says this year is different.

A major blizzard set off a series of issues last year that forced the airline to cancel more than 16,000 flights, stranding passengers across the U.S. Southwest says this year will be different.

Southwest investors are seeking damages for what they say is the carrier's negligence.

Despite cancelling thousands of flights over the holidays, the Dallas-based airline Southwest gave promotions to five executives to higher responsibilities.