Business Express embarked a significant route and fleet expansion beginning in 1993, although its facilities at hub airports Boston Logan International Airport, and New York City's LaGuardia and John F. Kennedy International airports were unable to effectively accommodate the influx in passenger boardings and aircraft movements. In May 1995, the carrier inaugurated a major expansion and renovation of its primary passenger hub at Boston Logan. Negotiated as a direct lease with Massport, these long-awaited facilities upgrades substantially increased gate and ramp space in the "C" concourse. Enhancements included improved Americans with Disabilities Act compliance, new airside elevators, upgraded signage, and refurbishment of all passenger lounge areas. Gatehouse expansion allowed the airline to reduce remote bus boardings, whereby 80 percent of the airline's daily departures were serviced directly from the terminal. Service was increased to both Bangor and Portland in Maine utilizing Avro RJ-70 jets and Saab 340 aircraft. Additional round-trip service was added between Boston Logan and Washington National Airport, bringing the total number of roundtrips to five daily, in addition to Delta's three mainline flights. At this time, Business Express was Boston's largest airline, operating 158 daily departures.