Philadelphia (PHL) to Milwaukee (MKE): On-Time Performance
Data through May 2026
The calendar drives reliability on PHL–MKE. September 2024 flights landed on schedule 96% of the time, but August 2024 dropped to 61% — a gap of 35 points. Across the full period the route averages 78% on-time against a national 78%. Morning departures also hold up better than evening ones (86% vs 70%), which matters most in the rough months.
- On-time
- 78%
- arrived <15 min late
- Avg delay
- 19 min
- completed flights
- Cancelled
- 2.3%
- Flights/day
- 1.1
- last 12 months
- Duration
- 2h 21m
- scheduled
- Distance
- 690 mi
Best airline from PHL to MKE
3 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airwaysmost reliable | 82% | 11 min | 4.4% | 181 |
| PSA Airlines | 77% | 23 min | 1.8% | 496 |
| American Airlines | 75% | 20 min | 1.1% | 90 |
Monthly on-time trend
Best time to fly from PHL to MKE
Aim for departures around 8 a.m. (94% on-time); avoid 7 p.m. departures (67%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 76% | 29 min |
| Tuesdaybest | 81% | 26 min |
| Wednesday | 81% | 9 min |
| Thursday | 76% | 20 min |
| Friday | 76% | 17 min |
| Saturday | 81% | 17 min |
| Sunday | 79% | 16 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft50%
- Airline operations29%
- National airspace system18%
- Weather3%
Frequently asked questions
- How often are flights from PHL to MKE delayed?
- 22% of PHL–MKE flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 19 minutes.
- Which airline is most reliable from PHL to MKE?
- Republic Airways has the best on-time record on this route at 82%, based on 181 flights. 3 airlines flew PHL–MKE frequently enough to compare in this period.
- What is the best time of day to fly from PHL to MKE?
- Departures around 8 a.m. have the best record (94% on-time), while departures around 7 p.m. have the worst (67%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from PHL to MKE?
- The scheduled PHL–MKE flight time averages 2h 21m over 690 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
- How often are PHL to MKE flights cancelled?
- 2.3% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, slightly above the national rate of 1.6%.
- What is the worst month to fly from PHL to MKE?
- August 2024 was the roughest month in this dataset, with only 61% of arrivals on time. The best was September 2024 at 96%. If your dates are flexible, that 35-point gap is worth planning around.
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Based on 798 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.