Best Time to Fly CMH to PHL: On-Time Stats by Hour & Airline
John Glenn Columbus International → Philadelphia International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 81.3% of Columbus (CMH) to Philadelphia (PHL) flights arrived on time (1,432 scheduled flights). That is 3.7 points above the national average of 77.6%.
Among 3 airlines, Republic Airways led with 88.3% on time and PSA Airlines was last with 76.6%.
Over 24 months, Tuesday was the most reliable day (84% on time) and July the worst month (66%).
The cancellation rate was 3.1% (US average 1.8%).
CMH 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 | 88.3% | 62 min | 1.5% | 538 |
| American Airlines | 77.3% | 111 min | 2.3% | 486 |
| PSA Airlines | 76.6% | 69 min | 6.4% | 408 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly CMH to PHL
On-time arrival % by scheduled departure hour (local time), 2,827 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 92.7% | 3.5% | 58 |
| 6am–7am | 90.8% | 2.2% | 499 |
| 7am–8am | 88.8% | 0.0% | 197 |
| 8am–9am | 84.8% | 2.4% | 331 |
| 9am–10am | Limited data | 2 | |
| 10am–11am | 88.4% | 5.1% | 118 |
| 11am–12pm | 82.6% | 1.7% | 351 |
| 12pm–1pm | 76.2% | 2.3% | 44 |
| 1pm–2pm | 83.1% | 0.4% | 244 |
| 3pm–4pm | 65.2% | 8.0% | 50 |
| 4pm–5pm | 57.3% | 4.0% | 526 |
| 5pm–6pm | 71.6% | 2.4% | 83 |
| 6pm–7pm | 57.7% | 5.1% | 316 |
| 7pm–8pm | Limited data | 3 | |
| 8pm–9pm | Limited data | 5 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on CMH 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) | 69.8% | -9.0 pts | 2.3% | 44 |
| Christmas & New Year (Dec 20 - Jan 3) | 78.5% | -0.3 pts | 2.4% | 82 |
| Summer peak (Jun 15 - Aug 15) | 71.8% | -7.0 pts | 5.9% | 646 |
| All other days | 78.8% | — | 1.9% | 2,055 |
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).