$3.00 commuter express for PIE’s Gateway crowd
PSTA Route 300X is a weekday-only commuter express that links the Gateway/Carillon area near PIE with downtown Tampa in about 35–45 minutes on the timetable. It runs on I‑275 as a limited-stop route, so it’s aimed at office workers more than suitcase traffic, but mileage geeks and budget hawks use it as a cheap trunk line instead of driving or rideshare.
The key catch: 300X operates rush hours only, with morning inbound trips toward downtown Tampa and evening outbound trips back toward Gateway; there’s no mid‑day, late‑night, or weekend service at all. Reddit commuters call it “strictly rush hour,” and missing one can leave you waiting up to an hour for the next bus or dropping back to slower locals like the 52 or 59.
The fare is the PSTA commuter express rate at $3.00 per ride, higher than the standard local bus fare but still far below an Uber from PIE to downtown Tampa, which often runs $30–$40 before tip. You pay on board with cash or a PSTA Flamingo account, and there’s no airport-specific surcharge, since the route doesn’t actually enter PIE.
Route 300X never drives into the Main terminal at St. Petersburg Clearwater International Airport; instead it serves stops in the Gateway, Carillon, and Roosevelt area along the office parks. From PIE’s front door, you’re looking at a 10–20 minute walk, a short hop on routes like 52 or 59, or a quick $10–$15 rideshare to meet the bus at a Gateway stop.
Regulars on Tampa transit threads often ride 52 or 59 from near PIE into Gateway in the morning, then transfer to 300X for the faster I‑275 run into downtown Tampa, treating it as a budget express alternative to driving. Others do the reverse in the evening, timing their office departure to specific 300X trips printed on the PSTA PDF schedule.
Watch out for I‑275 traffic: scheduled run time between Gateway/Carillon and downtown Tampa is about 35–40 minutes in the morning peak, but riders report delays when there’s a crash or heavy rain, stretching trips closer to 50–55 minutes. Build the buffer if you’re pairing 300X with a flight, and always check the latest timetable on psta.net before you leave the terminal.
One tip: if your flight lands outside weekday rush hours, skip 300X entirely and plan on local buses or a rideshare from PIE; the express is great only when your arrival lines up with its narrow peak schedule.