American AirlinesAA82% on time
Flights AA1308 06:00 Mo Tu We Th Fr Su · AA1739 varies Sa · AA5054 11:22 Mo Tu We Th Fr Su · AA3049 17:42 Mo We Th Fr Sa Su
live
Direct flights from St Louis (STL) to Philadelphia (PHL): 14 nonstop departures observed each week across 2 airlines. 68% of the last 19 operated flights arrived within 15 minutes of schedule. The median arrival is 8 minutes late. No cancellations were recorded across the 19 tracked flights. The nonstop covers 1,306 km, an estimated 2 hours 10 minutes in the air. Measured by Pro Flight Search from live flight boards at St Louis and Philadelphia. Updated 8 September 2026 at 07:40 UTC.
STL
St Louis
heavy · +48
PHL
Philadelphia
smooth · +0
1,306 km · ~2h 10m est.
Runs mixed · 2 airlines · 14x weekly · nonstop
68% on time
of the last 19 operated STL → PHL flights arrived within 15 minutes
Median arrival delay is +8 min. 0 of 19 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+8 minacross the last 19 operated legs
Flight time~2h 10mestimated from route distance
Weekly departures14x2 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 19
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
American AirlinesSouthwest Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at STL and PHL: 45% odds of a 15+ minute delay and around +13 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the St Louis to Philadelphia route actually runs
Pro Flight Search records official board updates for nonstop STL to PHL flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — St Louis (STL) to Philadelphia (PHL) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/STL-PHL
STL to PHL questions
Is STL–PHL running on time right now?
Mostly on schedule. The departure side at STL is the weaker end, route health score 68/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on STL–PHL?
Operators schedule morning departures around 06:00 and evening departures around 17:42 from STL. Earlier flights typically land before destination-airport delays accumulate later in the day; check the PHL delay card to confirm conditions when you'd arrive.
How long is the flight from STL to PHL?
Great-circle distance is 1,306 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 122–142 min gate-to-gate on this route.
How often does STL–PHL fly?
2 carriers operate this route, around 32 flights a week between them. Compare carrier days and times in the airline list above.
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