Route 21 is a bus route.
Route 21 starts in Upper Darby/West Philly at 69th Street Transportation Center - steps from Tower Theater. It runs east on Chestnut Street through University City, Center City, and Old City until it reaches it's terminus - aka final destination - Penn's Landing on the Delaware River Waterfront.
Route 21 runs west on Walnut Street to 69th Street Transportation Center.
One of the best parts of this Route is that it's a 15-15-5 route. That means - it runs every 15 minutes or less for at least 15 hours a day (6a-9p), 5 days a week. If you're going within that time period - the buses are running so frequently they aren't even listed on the schedule. You can see where it is in real time with TransitView - also available on the SEPTA App.
It costs $2.50 cash (exact change required) to ride the bus - $2 if you have a SEPTA Key card with Travel Wallet and you can TRANSFER for FREE.
Route 21 connections at 69th Street Transportation Center: Market-Frankford and Norristown High Speed Lines, 21, 30, 65, 68, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 120, 123, 126
Connections at 30th Street Station: 9, 10, 11, 13, 30, 31, 34, 36, 44, 49, 62, 78, 124, 125, LUCY and all Regional Rail Lines and Amtrak
Click here for our handy GUIDE TO RIDE.