BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
PHL→GSP

Philadelphia, PA (PHL) to Greer, SC (GSP) flight delay odds

69.2% of 441 official scheduled PHL-to-GSP flights arrived on time; 19.0% arrived at least 30 minutes late and 2.9% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALVariable
69.2%arrived on time
19.0%30+ min late
2.9%cancelled
441scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late14.5%all scheduled flights
120+ minutes late6.3%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+14.2 mincompleted flights

Which departure time was most reliable for PHL to GSP?

Among qualifying PHL-to-GSP departure window results, Early morning had the highest on-time rate: 76.7% of 43 flights. Evening was lowest at 65.3% across 343 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning4376.7%16.3%2.3%
Evening34365.3%20.7%3.5%

Which weekday was most reliable for PHL to GSP?

Among qualifying PHL-to-GSP weekday results, Friday had the highest on-time rate: 76.9% of 65 flights. Sunday was lowest at 58.5% across 65 flights.

DayFlightsOn time30+ minCancelled
Monday6475.0%15.6%4.7%
Tuesday6071.7%16.7%1.7%
Wednesday6575.4%18.5%0.0%
Thursday6564.6%24.6%3.1%
Friday6576.9%13.8%1.5%
Saturday5761.4%21.1%1.8%
Sunday6558.5%23.1%7.7%

Which airline was most reliable for PHL to GSP?

Only PSA Airlines met the PHL-to-GSP airline threshold: 69.2% of 441 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
PSA Airlines44169.2%19.0%2.9%

Which month was most reliable for PHL to GSP?

Among qualifying PHL-to-GSP month results, April 2026 had the highest on-time rate: 90.0% of 30 flights. July 2025 was lowest at 41.9% across 31 flights.

MonthFlightsOn time30+ minCancelled
July 20253141.9%38.7%6.5%
August 20253174.2%19.4%0.0%
September 20257689.5%7.9%0.0%
October 20253683.3%11.1%0.0%
November 20253066.7%13.3%3.3%
December 20253164.5%19.4%6.5%
January 20264965.3%22.4%8.2%
February 20263568.6%14.3%5.7%
March 20263161.3%29.0%3.2%
April 20263090.0%3.3%0.0%
May 20263151.6%32.3%0.0%
June 20263043.3%33.3%3.3%

What drove PHL to GSP delay minutes?

Late aircraft was the largest recorded PHL-to-GSP delay category, accounting for 50.7% of 10,649 BTS-attributed delay minutes during July 2025–June 2026.

Airline27.8%
Late aircraft50.7%
National airspace20.3%
Weather1.3%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.