Route
GRR → PHL
Gerald R. Ford International Airport Philadelphia International Airport
573 miles
Return route PHL → GRR →
How punctual is this route?
- On-time arrivals
- 81.2%
- Less than 15 minutes late
- Cancelled
- 3.2%
- Of scheduled flights
- Average delay when late
- 107 min
- Flights arriving 15+ minutes late
- Flights tracked
- 403
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 44%
- Airline (crew, maintenance, cleaning) 20%
- Air traffic control & airport 19%
- Extreme weather 17%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 87.7% | 57 |
| October 2025 | 94.1% | 51 |
| November 2025 | 100.0% | 3 |
| December 2025 | 100.0% | 1 |
| April 2026 | 87.5% | 24 |
| May 2026 | 73.8% | 43 |
| June 2026 | 87.7% | 68 |
| July 2026 | 66.2% | 84 |
| August 2026 | 78.3% | 72 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| OH | 361 | 82.4% | 3.6% | 111 min |
| Allegiant Air | 30 | 66.7% | 0.0% | 90 min |
| Republic Airways | 12 | 83.3% | 0.0% | 55 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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