Historical on-time performance
Atlanta to Philadelphia
665 miData through May 2026Source: US DOT · BTS
Flights on ATL–PHL arrive on time 70% of the time over the last 12 months.
On-time rate70%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled2.9%of scheduled flights
based on 5,335 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysOn-time84%Medianon timep9010 minCancel7.9%Flights38
- PSA AirlinesbestOn-time78%Medianon timep9040 minCancel4.1%Flights844
- Delta Air LinesOn-time72%Medianon timep9045 minCancel2.5%Flights3,040
- American AirlinesOn-time69%Medianon timep90100 minCancel1.8%Flights437
- Frontier AirlinesOn-time58%Median5 minp9095 minCancel3.5%Flights976
Why flights run late
Delay causes
- Airline35%
- Weather4%
- Air traffic (NAS)16%
- Late aircraft44%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline44%
- Weather51%
- Air traffic (NAS)5%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 155 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly ATL → PHL
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 84% on time.
- Mornings84% on time · p90 20 min · 4,148 flights
- Middays81% on time · p90 30 min · 4,167 flights
- Evenings66% on time · p90 75 min · 2,600 flights
- Afternoons65% on time · p90 70 min · 3,527 flights
- Overnights64% on time · p90 75 min · 2,822 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 79% on time.
- Wednesdays79% on time · p90 35 min · 2,343 flights
- Tuesdays79% on time · p90 40 min · 2,330 flights
- Saturdays75% on time · p90 45 min · 2,131 flights
- Thursdays73% on time · p90 50 min · 2,604 flights
- Fridays71% on time · p90 60 min · 2,624 flights
- Mondays71% on time · p90 65 min · 2,618 flights
- Sundays68% on time · p90 65 min · 2,614 flights
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