CHS to PHL flight delays & on-time performance
Nonstop flights from Charleston International Airport to Philadelphia International Airport · 550 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at CHS or PHL right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Charleston (CHS) to Philadelphia (PHL) arrived on time 80% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.9% were cancelled, and 8% arrived an hour or more late.
- American Airlines was the most punctual airline here (81% on time); Frontier Airlines was the least (69%).
- Departures scheduled around 6am did best (90% on time); around 3pm did worst (66%).
- Tuesday was the most reliable day to fly (84% on time) and Thursday the least (75%).
- The largest source of delay minutes was late-arriving aircraft (54%).
Which airline is most on time from CHS to PHL?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 91% | 0.0% | 4 min | 0.0% | 34 |
| American Airlines | 81% | 1.6% | 18 min | 6.8% | 687 |
| PSA AirlinesRegional airline operating American Eagle flights. | 77% | 3.0% | 25 min | 10.9% | 302 |
| Frontier Airlines | 69% | 1.5% | 21 min | 10.8% | 66 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am90%157 flights
- 7am88%50 flights
- 9am75%13 flights
- 10am90%88 flights
- 11am81%180 flights
- 12pm87%52 flights
- 1pm75%61 flights
- 2pm73%11 flights
- 3pm66%156 flights
- 4pm76%100 flights
- 6pm73%164 flights
- 7pm89%46 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday83%3.0% cancelled
- Tuesday84%1.5% cancelled
- Wednesday81%1.5% cancelled
- Thursday75%0.0% cancelled
- Friday80%1.8% cancelled
- Saturday79%2.8% cancelled
- Sunday77%2.9% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft54%
- Airline (crew, maintenance, cleaning, fueling)32%
- Air traffic control & airport congestion12%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather76%
- Airline (crew, maintenance, cleaning, fueling)19%
- Air traffic control & airport congestion5%
- Security0%
CHS to PHL: common questions
- How often are CHS to PHL flights on time?
- 80% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Charleston to Philadelphia cancelled?
- 1.9% of scheduled flights were cancelled (21 of 1,089).
- How long are typical delays?
- Across all flights the average arrival delay was 19 min (early arrivals count as zero). Flights that were late arrived 91 min behind schedule on average, and 8.0% of flights were an hour or more late.
- How long is taxi time at CHS?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: PHL to CHS — 77% on time
More flights from Charleston
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: CHS → PHL, nonstop flights by US airlines that report to the DOT. How we calculate this.