Southwest to add 2 more nonstop flights between Boston and Baltimore next year

Southwest to increase Boston-Baltimore flights

DALLAS — Southwest Airlines Co., which began service at Boston’s Logan Airport in August, said Tuesday it would add two more nonstops from there to Baltimore next spring.

The changes are part of a new schedule for March 14 through May 7 of next year, which went on sale Tuesday.

Southwest began service at Logan with 10 daily nonstop flights, five to Chicago and five to Baltimore-Washington International Airport. It plans to add flights from Boston to Denver and St. Louis beginning in January.

Lead scheduler Bill Owen said Southwest will also increase Saturday flights to and from vacation destinations in the spring, aiming for leisure travelers. For example, the airline plans to increase departures from Orlando, Fla., to 129 from 104.

Leisure travel has remained fairly strong in recent months, helping airlines like Southwest offset a slump in business travel.