Historical on-time performance
Washington to Philadelphia
119 miData through Dec 2025Source: US DOT · BTS
Flights on DCA–PHL arrive on time 65% of the time over the last 12 months.
On-time rate65%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled4.6%of scheduled flights
based on 1,032 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysbestOn-time73%Medianon timep9060 minCancel3.1%Flights516
- PSA AirlinesOn-time56%Median5 minp9095 minCancel6.0%Flights516
Why flights run late
Delay causes
- Airline22%
- Weather8%
- Air traffic (NAS)16%
- Late aircraft53%
- Security1%
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 DCA → PHL
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 65% to 88% on time.
- Mornings88% on time · p90 15 min · 959 flights
- Middays88% on time · p90 15 min · 938 flights
- Overnights75% on time · p90 40 min · 840 flights
- Afternoons65% on time · p90 75 min · 1,077 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 82% on time.
- Tuesdays82% on time · p90 35 min · 578 flights
- Saturdays81% on time · p90 30 min · 493 flights
- Wednesdays79% on time · p90 40 min · 578 flights
- Fridays78% on time · p90 40 min · 566 flights
- Thursdays78% on time · p90 45 min · 564 flights
- Sundays76% on time · p90 45 min · 504 flights
- Mondays76% on time · p90 45 min · 567 flights
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