It is important to note that other carriers in the United States do operate single-type fleets, most of which are low-cost airlines that have significantly smaller operations in scope. Frontier Airlines and Spirit Airlines do both operate single-type fleets, but none come anywhere close to the size and importance of Southwest Airlines.

This move comes amid other efforts to help improve profitability and increase the airline's network connectivity, especially on the West Coast, East Coast, and Hawaii. The first red-eye flights took place on February 13th, 2025, originating from destinations including the following:

Southwest Airlines is closing two more crew basis amid its cost-cutting push that has also led to its first mass layoffs in its more than 50 years of flying. The airline is closing crew bases at Florida's Fort Lauderdale-Hollywood International Airport and at Texas' Austin-Bergstrom International Airport, according to a flight attendant union memo.

In the latest air travel developments, Southwest Airlines is making Rapid Rewards loyalty points a lot harder to earn for travelers who buy its lowest fares, and a bit easier at its most expensive prices;

A blizzard is forecast to disrupt flights on Wednesday, with several major U.S. airports reporting double-digit cancellations.

Southwest Airlines recently announced a new partnership with Expedia Group, where the travel company will begin selling tickets on behalf of the low-cost airline.

Southwest Airlines says it will close two of its flight attendant bases in Florida and Texas amid sweeping cost-cutting endeavors.

While flights will be fewer, Southwest is adopting a new strategy to ensure passenger numbers at DIA continue to increase overall: deploying larger aircraft, company spokesman Dan Landson said. Travelers booking flights this year are more likely to ride on a 175-seater aircraft instead of a 143-seater.

After a few months of consideration, both Spirit Airlines and Frontier Airlines filed individual lawsuits against the Department of Transportation over the awarding of five new flights at Washington Reagan National Airport this past October—mainly because the airlines themselves were passed over for the routes.

A group representing U.S. airlines plans to urge federal aviation officials to permanently reduce helicopter traffic around Reagan National Airport outside Washington, D.C., following a January collision by an Army Black Hawk into an American Airlines regional jet that killed 67 people.

The ratification now sets the stage for more negotiations with Alaska and Hawaiian Airlines flight attendants.