Historical on-time performance
Charleston to Philadelphia
550 miData through Dec 2025Source: US DOT · BTS
Flights on CHS–PHL arrive on time 76% of the time over the last 12 months.
On-time rate76%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled2.6%of scheduled flights
based on 1,212 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.
- Republic AirwaysOn-time65%Medianon timep9060 minCancel3.8%Flights159
- PSA AirlinesOn-time75%Medianon timep9075 minCancel3.3%Flights181
- American AirlinesOn-time78%Medianon timep9045 minCancel2.2%Flights872
Why flights run late
Delay causes
- Airline37%
- Weather1%
- Air traffic (NAS)15%
- Late aircraft47%
- 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 CHS → 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 86% on time.
- Mornings86% on time · p90 15 min · 926 flights
- Middays84% on time · p90 25 min · 1,522 flights
- Evenings65% on time · p90 85 min · 1,128 flights
- Afternoons65% on time · p90 70 min · 458 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 81% on time.
- Tuesdays81% on time · p90 35 min · 525 flights
- Wednesdays80% on time · p90 40 min · 549 flights
- Saturdays77% on time · p90 40 min · 555 flights
- Thursdays77% on time · p90 55 min · 575 flights
- Sundays76% on time · p90 55 min · 595 flights
- Mondays75% on time · p90 60 min · 638 flights
- Fridays74% on time · p90 60 min · 644 flights
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