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Route Reliability

Philadelphia → Greenville

PHL–GSP · 515 miles · Philadelphia International Airport to Greenville–Spartanburg International Airport

74
Usually Fine
WanderNerd Reliability Score
78%
Arrive within 15 minutes
7 min
Average arrival delay
2.8%
Cancelled
1,041
Flights in the data

Data through May 2026.

American Airlines is the only airline in this data on this route, arriving on time 78% of the time across 1,041 flights. No comparison to make.

What the data says

The 12–3 PM departure wins.

PHL–GSP flights departing between 12–3 PM arrived on time 92% of the time, versus 68% between 6–9 PM.

Skip Thursday if you can.

PHL–GSP flights arrived on time 84% of the time on Wednesdays. On Thursdays: 73%.

Ticking up lately.

PHL–GSP flights arrived on time 83% of the time over the last three months in the data, compared with 77% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon80%(152 flights)
  • Tue82%(135 flights)
  • Wed84%(144 flights)
  • Thu73%(150 flights)
  • Fri79%(149 flights)
  • Sat73%(131 flights)
  • Sun74%(150 flights)
On-time by departure window
  • 6–9 AM88%(293 flights)
  • 9 AM–12 PM88%(89 flights)
  • 12–3 PM92%(12 flights)
  • 3–6 PM75%(343 flights)
  • 6–9 PM68%(274 flights)
On-time trend by month
80%
May

Jun 57% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202557%83
July 202562%87
August 202575%91
September 202589%94
October 202586%110
November 202584%81
December 202572%83
January 202676%79
February 202682%60
March 202678%60
April 202691%84
May 202680%99

Keep nerding

Based on 1,041 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.