Historical on-time performance
Philadelphia to Raleigh-durham
336 miData through Dec 2025Source: US DOT · BTS
Flights on PHL–RDU arrive on time 71% of the time over the last 12 months.
On-time rate71%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled1.6%of scheduled flights
based on 2,348 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- American AirlinesOn-time71%Medianon timep9070 minCancel1.7%Flights1,563
- PSA AirlinesOn-time65%Medianon timep9085 minCancel0.9%Flights230
- Frontier AirlinesOn-time74%Medianon timep9055 minCancel1.6%Flights555
Why flights run late
Delay causes
- Airline24%
- Weather3%
- Air traffic (NAS)12%
- Late aircraft61%
- 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 → RDU
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 64% to 81% on time.
- Mornings81% on time · p90 40 min · 1,722 flights
- Middays78% on time · p90 50 min · 1,520 flights
- Afternoons70% on time · p90 85 min · 1,764 flights
- Overnights65% on time · p90 75 min · 580 flights
- Evenings64% on time · p90 80 min · 1,242 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 77% on time.
- Wednesdays77% on time · p90 50 min · 936 flights
- Tuesdays77% on time · p90 50 min · 920 flights
- Mondays73% on time · p90 70 min · 1,055 flights
- Thursdays72% on time · p90 60 min · 1,000 flights
- Saturdays72% on time · p90 70 min · 841 flights
- Sundays71% on time · p90 65 min · 1,024 flights
- Fridays69% on time · p90 70 min · 1,052 flights
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