Best Time to Fly CHS to PHL: On-Time Stats by Hour & Airline
Charleston AFB/International → Philadelphia International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 79.7% of Charleston (CHS) to Philadelphia (PHL) flights arrived on time (1,089 scheduled flights). That is 2.1 points above the national average of 77.6%.
Republic Airways was the most punctual of the 4 airlines on the route at 91.2%, while Frontier Airlines trailed at 69.2%.
February has been the best month (84% on time) and Thursday the weakest day of the week (76%).
1.9% of flights were cancelled, versus 1.8% nationally.
CHS to PHL on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airways | 91.2% | 38 min | 0.0% | 34 |
| American Airlines | 81.1% | 89 min | 1.6% | 687 |
| PSA Airlines | 77.5% | 107 min | 3.0% | 302 |
| Frontier Airlines | 69.2% | 66 min | 1.5% | 66 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly CHS to PHL
On-time arrival % by scheduled departure hour (local time), 2,573 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 97.2% | 2.7% | 37 |
| 6am–7am | 90.1% | 1.7% | 174 |
| 7am–8am | 85.1% | 2.4% | 254 |
| 8am–9am | 91.3% | 2.8% | 71 |
| 9am–10am | 71.4% | 7.9% | 38 |
| 10am–11am | 89.0% | 2.2% | 185 |
| 11am–12pm | 84.9% | 1.8% | 451 |
| 12pm–1pm | 87.9% | 1.5% | 67 |
| 1pm–2pm | 82.5% | 2.0% | 251 |
| 2pm–3pm | Limited data | 13 | |
| 3pm–4pm | 63.4% | 1.6% | 303 |
| 4pm–5pm | 72.0% | 2.7% | 220 |
| 5pm–6pm | 71.6% | 3.5% | 113 |
| 6pm–7pm | 68.0% | 3.2% | 340 |
| 7pm–8pm | 88.6% | 4.3% | 46 |
| 8pm–9pm | Limited data | 8 | |
| 9pm–10pm | Limited data | 2 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on CHS to PHL
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 83.7% | +3.8 pts | 0.0% | 49 |
| Christmas & New Year (Dec 20 - Jan 3) | 76.4% | -3.5 pts | 1.4% | 73 |
| Summer peak (Jun 15 - Aug 15) | 74.9% | -5.0 pts | 5.0% | 424 |
| All other days | 79.9% | — | 1.9% | 2,027 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).