Best Time to Fly PHL to MKE: On-Time Stats by Hour & Airline
Philadelphia International → General Mitchell International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 75.2% of Philadelphia (PHL) to Milwaukee (MKE) flights arrived on time (503 scheduled flights). That is 2.5 points below the national average of 77.6%.
PSA Airlines was the only reporting airline with regular flights on this route.
September has been the best month (92% on time) and Thursday the weakest day of the week (71%).
6.0% of flights were cancelled, versus 1.8% nationally.
PHL to MKE 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 |
|---|---|---|---|---|
| PSA Airlines | 75.8% | 100 min | 6.0% | 451 |
| Republic Airways | Limited data | 25 | ||
| American Airlines | Limited data | 27 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PHL to MKE
On-time arrival % by scheduled departure hour (local time), 794 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | Limited data | 2 | |
| 8am–9am | 91.9% | 2.6% | 38 |
| 9am–10am | Limited data | 7 | |
| 10am–11am | 85.6% | 1.2% | 162 |
| 11am–12pm | 71.7% | 2.9% | 102 |
| 2pm–3pm | 66.7% | 0.0% | 48 |
| 3pm–4pm | 73.1% | 2.2% | 137 |
| 4pm–5pm | 77.1% | 10.3% | 39 |
| 6pm–7pm | Limited data | 25 | |
| 7pm–8pm | 68.9% | 3.2% | 94 |
| 8pm–9pm | 70.8% | 4.3% | 70 |
| 9pm–10pm | Limited data | 11 | |
| 10pm–11pm | 72.7% | 25.4% | 59 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on PHL to MKE
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 13 | ||
| Summer peak (Jun 15 - Aug 15) | 66.2% | -13.1 pts | 9.1% | 263 |
| All other days | 79.4% | — | 2.5% | 518 |
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).