Philly travelers will soon be able to take a one-hour flight to the Baltimore area.
Southwest Airlines’ new route between Philadelphia International Airport (PHL) and the Baltimore/Washington International Thurgood Marshall Airport (BWI) is part of the airline’s recent service expansion, which will also add a flight between Philadelphia and Las Vegas. Both new offerings begin March 11 next year.
The new flight to BWI will allow Philadelphians to unlock “most of the Southwest network with one-stop service,” said airline spokesperson, Chris Perry, via email, who added that Southwest flights are operated on Boeing 737 aircrafts. Southwest operates more than 70% of flights out of the Baltimore-area airport, which makes it the airport’s top airline by market share. At PHL, it is fourth.
American Airlines and Frontier Airlines already have scheduled flights to Harry Reid International Airport in Las Vegas out of PHL, but no airline currently flies between PHL and BWI, airport spokesperson Heather Redfern said via email on Tuesday.
“PHL is thrilled to be part of Southwest’s latest route network expansion,” said Redfern.
The flight to BWI will be offered twice daily, while the route to Las Vegas will operate on Sunday, Monday, Thursday, and Friday.
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The route between PHL and Baltimore was previously served by American / U.S. Airways throughout the 2000s and 2010s, but was discontinued in July 2020, said Redfern.
A roundtrip direct flight between BWI and Philadelphia will cost travelers roughly $343, including taxes and fees, for a basic ticket departing Friday, March 12 and returning Sunday, March 14.
A roundtrip flight on those same days between Philadelphia and Las Vegas will cost a traveler roughly $578 for a basic ticket, including taxes and fees.
Southwest carried over 1.3 million passengers through Philadelphia’s airport in 2025. The largest airline operating out of PHL, American Airlines, transported over 20 million passengers through the airport that year.