American AirlinesAA90% on time
Flights AA5124 13:37 Th Fr · AA5427 13:49 daily · AA5954 16:44 daily · AA5845 16:57 We Th Fr
live
Direct flights from Greenville/Greer/Spartanburg (GSP) to Philadelphia (PHL): 7 nonstop departures observed each week across 1 airline. 90% of the last 20 operated flights arrived within 15 minutes of schedule. The median arrival is 15 minutes early. No cancellations were recorded across the 20 tracked flights. The nonstop covers 828 km, an estimated 1 hour 34 minutes in the air. Measured by Pro Flight Search from live flight boards at Greenville/Greer/Spartanburg and Philadelphia. Updated 11 September 2026 at 13:38 UTC.
GSP
Greenville/Greer/Spartanburg
tracking
PHL
Philadelphia
smooth · +0
828 km · ~1h 34m est.
Runs reliable · 1 airline · 7x weekly · nonstop
90% on time
of the last 20 operated GSP → PHL flights arrived within 15 minutes
Median arrival delay is −15 min. 0 of 20 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−15 minacross the last 20 operated legs
Flight time~1h 34mestimated from route distance
Weekly departures7x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 20
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
American 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 boardsnext sweep in 120s
How the Greenville/Greer/Spartanburg to Philadelphia route actually runs
Pro Flight Search records official board updates for nonstop GSP 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 — Greenville/Greer/Spartanburg (GSP) to Philadelphia (PHL) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/GSP-PHL
GSP to PHL questions
Is GSP–PHL running on time right now?
Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from GSP to PHL?
Great-circle distance is 828 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 88–101 min gate-to-gate on this route.
How often does GSP–PHL fly?
American Airlines runs the route with about 30 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at GSP and arrival-side delay at PHL, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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