Columbus (CMH) to Philadelphia (PHL): On-Time Performance
Data through July 2026
The calendar drives reliability on CMH–PHL. April 2026 flights landed on schedule 91% of the time, but July 2025 dropped to 53% — a gap of 38 points. Across the full period the route averages 77% on-time against a national 78%. Morning departures also hold up better than evening ones (87% vs 61%), which matters most in the rough months.
- On-time
- 77%
- arrived <15 min late
- Avg delay
- 20 min
- completed flights
- Cancelled
- 2.9%
- Flights/day
- 3.9
- last 12 months
- Duration
- 1h 35m
- scheduled
- Distance
- 407 mi
Best airline from CMH to PHL
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airwaysmost reliable | 85% | 10 min | 1.3% | 1,117 |
| PSA Airlines | 77% | 20 min | 4.4% | 901 |
| American Airlines | 68% | 32 min | 3.4% | 985 |
Monthly on-time trend
Best time to fly from CMH to PHL
Aim for departures around 5 a.m. (91% on-time); avoid 4 p.m. departures (57%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 74% | 18 min |
| Tuesdaybest | 85% | 13 min |
| Wednesday | 78% | 20 min |
| Thursday | 76% | 17 min |
| Friday | 74% | 18 min |
| Saturday | 77% | 30 min |
| Sunday | 74% | 24 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft48%
- Airline operations28%
- National airspace system22%
- Weather2%
Frequently asked questions
- How often are flights from CMH to PHL delayed?
- 23% of CMH–PHL 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 20 minutes.
- Which airline is most reliable from CMH to PHL?
- Republic Airways has the best on-time record on this route at 85%, based on 1,117 flights. 3 airlines flew CMH–PHL frequently enough to compare in this period.
- What is the best time of day to fly from CMH to PHL?
- Departures around 5 a.m. have the best record (91% on-time), while departures around 4 p.m. have the worst (57%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from CMH to PHL?
- The scheduled CMH–PHL flight time averages 1h 35m over 407 miles. Actual arrival times vary — flights on this route land 15+ minutes late 23% of the time.
- How often are CMH to PHL flights cancelled?
- 2.9% 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 CMH to PHL?
- July 2025 was the roughest month in this dataset, with only 53% of arrivals on time. The best was April 2026 at 91%. If your dates are flexible, that 38-point gap is worth planning around.
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Based on 3,022 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.