Check out these tips and tricks from the Port Authority of Allegheny County about using public transportation in Pittsburgh, PA.
Tips for Taking Public Transit
Port Authority of Allegheny County is the public transit agency for the greater Pittsburgh area, providing bus, light rail, incline and paratransit service to about 230,000 riders daily.
For bus service and the "T" - Pittsburgh's light rail system - pay as you enter at the front door. This policy is in effect at all times.
You can transfer between the 28X (from the Pittsburgh International Airport) and most other Port Authority bus or "T" routes in downtown Pittsburgh. A transfer costs $1 for those with a ConnectCard and is good for three hours in any direction aboard a connecting vehicle. Request a transfer from the operator before paying your fare. Riders paying with cash will pay $2.75. Exact change is required when paying with cash as bus drivers do not carry change. Travel within Downtown and the North Shore is free 24/7 on the "T".
ConnectCard users also receive unlimited 15-minute free rides using Healthy Ride, a bike share system that allows transit users to shorten the time between their origin or destination and the bus stop.