Philadelphia (PHL) to Charleston (CHS): On-Time Performance
Data through July 2026
The calendar drives reliability on PHL–CHS. October 2024 flights landed on schedule 89% of the time, but December 2025 dropped to 66% — a gap of 23 points. Across the full period the route averages 78% on-time against a national 78%. Morning departures also hold up better than evening ones (86% vs 71%), which matters most in the rough months.
- On-time
- 78%
- arrived <15 min late
- Avg delay
- 18 min
- completed flights
- Cancelled
- 2.4%
- Flights/day
- 3.0
- last 12 months
- Duration
- 1h 59m
- scheduled
- Distance
- 550 mi
Best airline from PHL to CHS
4 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airwaysmost reliable | 82% | 10 min | 1.6% | 246 |
| American Airlines | 78% | 17 min | 2.2% | 1,755 |
| Frontier Airlines | 77% | 21 min | 1.6% | 184 |
| PSA Airlines | 76% | 23 min | 3.6% | 534 |
Monthly on-time trend
Best time to fly from PHL to CHS
Aim for departures around 9 a.m. (90% on-time); avoid 9 p.m. departures (68%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 79% | 17 min |
| Tuesdaybest | 81% | 12 min |
| Wednesday | 80% | 16 min |
| Thursday | 74% | 20 min |
| Friday | 76% | 24 min |
| Saturday | 80% | 14 min |
| Sunday | 76% | 19 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft54%
- Airline operations25%
- National airspace system16%
- Weather4%
Frequently asked questions
- How often are flights from PHL to CHS delayed?
- 22% of PHL–CHS flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 18 minutes.
- Which airline is most reliable from PHL to CHS?
- Republic Airways has the best on-time record on this route at 82%, based on 246 flights. 4 airlines flew PHL–CHS frequently enough to compare in this period.
- What is the best time of day to fly from PHL to CHS?
- Departures around 9 a.m. have the best record (90% on-time), while departures around 9 p.m. have the worst (68%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from PHL to CHS?
- The scheduled PHL–CHS flight time averages 1h 59m over 550 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
- How often are PHL to CHS flights cancelled?
- 2.4% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from PHL to CHS?
- December 2025 was the roughest month in this dataset, with only 66% of arrivals on time. The best was October 2024 at 89%. If your dates are flexible, that 23-point gap is worth planning around.
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Based on 2,719 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.