• Free Fare
• Zone 1
• Zone 2

Port Authority operates a zone-based fare structure.  The amount of fare is based on trip length originating from Downtown Pittsburgh.  Higher fares are paid for trips crossing more than one zone.

Port Authority's system consists of:

• Two fare zones outside of the Central Business District
• A Free Fare Zone within the Downtown area

The Free Fare Zone was established to promote the use of transit within Downtown Pittsburgh, encourage intramodal transfer and reduce boarding delays.  The Free Fare Zone is defined by the following boundaries:

• The Allegheny River
• The Monongahela River
• Ross Street, Penn Station and Liberty Avenue at the railroad overpass and 11th Street

For bus riders, fares are free within this zone from the first scheduled city arrival after 4:00 a.m. through the last scheduled city departure time before 7:00 p.m., seven days a week.  For T riders fares are free within this zone at all times.

Zone 1 Boundaries:

Allegheny River to Ohio River

• Freeport Rd at Old Freeport Rd
  (Dorseyville Rd at Glen Brook Dr)
• Saxonburg Blvd at Middle Rd
  (PA 8 at Saxonburg)
• Mt Royal Blvd at Genessee
  (Andrew Dr at Forliview Dr)
• Thompson Run Rd at Seibert Rd
• McKnight Rd at Seibert Rd
  (Homer Dr at Cedar Dr)
• Perry Hwy at Thompson Dr
  (Rochester Rd at Harding Rd)
• I-279 at Camp Horne Road
  (Harmony Rd at Inglewood Lane)
• Ohio River Blvd at Hazelwood Ave (Emsworth)

• VA Hospital
• Freeport Rd at Delafield Ave

• Grand Ave at Neville Rd
• Coraopolis Rd at Herbst Rd
• Forest Grove Rd at Herbst Rd
• Clever Rd at I-79
• Steubenville Pike at I-79
• Campbells Run Rd at I-79
• Noblestown Rd at I-79
  (Hilltop Rd at I-79)
• Washington Pike at Raceway Plaza
  (Scrubgrass Rd at Washington Pike)
• Bower Hill Rd at Kane Blvd
• Gilkeson Rd at Cedar Blvd
• Washington Rd at Gilkeson
• Terrace Dr at Connor Rd
• Washington Junction
  (Library Rd at Milford Dr)

• Bower Hill Rd at Vanadium Rd

• Washington Junction
  (Library Rd at Milford Dr)
• Baptist Rd at Ames Plaza
• Gardenville Rd at Koeffler St
• Curry Rd at McAnulty Dr
• Brownsville Rd at Streets Run Rd
• Rt 51 at Streets Run Rd
• Doyle Rd at Streets Run Rd
• Lebanon Rd at Airport Runway
• Buttermilk Hollow Rd at Thompson Run Rd
• Greensprings Ave at Commonwealth Ave
• Commonwealth Ave at Homeville Rd
• Rt 837 at Kennywood Park

• Streets Run Rd from Doyle Rd to Brownsville Rd
• Mifflin Rd at Lebanon Rd
• W 7th Ave at W 8th Ave

• Braddock Ave at 11th St
• Bell Ave at Jones Ave
• Hawkins Ave at Middle St
• 6th Ave at Hawkins Ave overpass
• Brinton Rd at Braddock Rd
• Ardmore Blvd at Braddock Rd
• Parkway East at Greensburg Pike overpass
• Penn Ave at Greensburg Pike
  (McNary Blvd at Sylvan Terrace)
• Laketon Rd at Douglass Dr
• Frankstown Rd at Verona Rd
• Lincoln Rd at Nadine Rd
• Allegheny River Blvd at 1st lookout

• Browns Hill Rd at Homestead Hi Level Bridge
• Monongahela Ave at Whipple St
• S Braddock Ave at Parkway overpass
• Swissvale Ave at Jane St
• Rebecca Ave at Swissvale Ave
• Franklin Ave at Swissvale Ave
• South Ave at Swissvale Ave
• Penn Ave at Swissvale Ave
• Laketon Rd at Montier St
• Verona Rd at Giant Eagle 

Zone Two encompasses the area between the Zone One boundary and the remainder of the service area.