PHL to MKE flight delays
Philadelphia, PA (PHL) Milwaukee, WI (MKE) · 690 miles
442 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
79.43%
Arrived on time
Within 15 minutes of schedule
3.85%
Cancelled
Share of scheduled flights
93 min
When late, late by
Average across delayed arrivals
20 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The cancellation rate for the period is 3.85%, but almost all of it belongs to one month: June 2026, when 13.33% of flights on this route did not operate. Outside that month the route cancelled at around 1.43%. Whatever happened in June was an event, not the normal state of this route.
The shape of the lateness matters here. Flights on this route are not late often, but when they are late they are late by about 93 minutes — long enough to lose a connection or an evening. The on-time percentage looks reassuring and understates the consequence of being on the wrong flight.
The season swings this route hard. In September it ran 18.9 points more punctual than in October — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
Only PSA Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
Which airline should you fly on this route?
Over January 2025 – August 2026, PSA Airlines arrived on time most often on PHL to MKE. Flights ran closest to schedule in November and worst in October.
Every airline on PHL to MKE
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| PSA Airlines | 416 | 79.09% | 4.09% | 95 min | D |
| Republic Airways | 25 | 84% | 0% | 51 min | — |
| American Airlines | 1 | 100% | 0% | — | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
MKE to PHL Milwaukee back to Philadelphia 82.06% on time DOther routes from Philadelphia
Common questions
Are flights from Philadelphia to Milwaukee usually delayed?
79.43% of flights on the PHL to MKE route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is about the same as the average route in this record.
Which airlines fly from Philadelphia to Milwaukee?
Only PSA Airlines appears in the published record on this route, with 416 flights and 79.09% arriving on time.
How often are PHL to MKE flights cancelled?
3.85% of scheduled flights did not operate — about 39 in every thousand. That is high enough that cancellation, not delay, is the risk worth planning around.
What is the best month to fly Philadelphia to Milwaukee?
September, when 90.2% of flights arrived on time. The worst was October at 71.3%.
When PHL to MKE flights are late, how late are they?
About 93 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on PHL to MKE during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →