Historical on-time performance
Philadelphia to Greenville
515 miData through Dec 2025Source: US DOT · BTS
Flights on PHL–GSP arrive on time 67% of the time over the last 12 months.
On-time rate67%arrived within 15 min
p90 delay100 min1 in 10 flights is worse (tail risk)
Cancelled2.7%of scheduled flights
based on 476 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- PSA AirlinesOn-time67%Medianon timep90100 minCancel2.7%Flights476
Why flights run late
Delay causes
- Airline29%
- Weather10%
- Air traffic (NAS)15%
- Late aircraft45%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly PHL → GSP
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 95% on time.
- Mornings95% on time · p90 5 min · 96 flights · limited
- Afternoons82% on time · p90 45 min · 304 flights
- Evenings71% on time · p90 75 min · 1,044 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 83% on time.
- Wednesdays83% on time · p90 35 min · 212 flights
- Tuesdays81% on time · p90 35 min · 212 flights
- Mondays76% on time · p90 60 min · 216 flights
- Thursdays74% on time · p90 80 min · 211 flights
- Fridays71% on time · p90 85 min · 218 flights
- Saturdays70% on time · p90 50 min · 203 flights
- Sundays69% on time · p90 85 min · 210 flights
Advertisement
Keep exploring