PlainFlights

Route · PHL → MKE · 2020–2025 BTS data

Philadelphia to Milwaukee

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), PHL to MKE (Philadelphia to Milwaukee) ranks #3701 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

83.4%
On-time
+4.4 pts
vs US avg
84 min
Delay when late
2,210
Flights
#3701 of 4927
Corpus placement

Cancelled

1.6%

Best Month

Oct 2022 93%

Worst Month

Aug 2024 64%

Distance

690 mi

Carriers

9

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Oct 2025 80 23 0 0 AA,OH
Sep 2025 41 4 0 0 OH,YX
Aug 2025 80 16 2 1 YX,OH
Jul 2025 31 7 0 0 OH
Jun 2025 36 8 3 0 OH,YX
Oct 2024 71 13 0 0 YX,AA,OH
Aug 2024 70 25 4 1 AA,F9,YX,OH
Jul 2024 98 22 3 0 F9,OH,YX
Jun 2024 88 11 3 0 F9,OH,YX
May 2024 63 14 0 1 F9,YX
Apr 2024 30 7 0 0 OH,YX
Mar 2024 31 2 0 0 OH
Oct 2023 57 7 0 0 AA,OH,YX
Sep 2023 54 10 0 0 AA,OH
Aug 2023 41 7 0 0 OH,YX
Jul 2023 56 15 2 0 YX,OH
Jun 2023 55 14 3 0 OH,YX
Mar 2023 31 6 0 0 OH
Jan 2023 31 3 1 0 OH
Nov 2022 57 5 0 0 OH
Oct 2022 60 4 0 0 OH
Sep 2022 56 5 0 0 OH
Aug 2022 57 10 0 0 OH
Jul 2022 82 16 1 1 OH

PHL–MKE seasonal on-time pattern

Best: December (95.6%) · weakest: August (76.5%)

75%80%85%90%95%100% JanFebMarAprMayJunJulAugSepOctNovDec 95.6%

Strongest calendar month

December

95.6% on-time · ~45 flights/mo

Busiest calendar month

May

~64 flights/mo avg

Weakest calendar month

August

76.5% on-time · ~59 flights/mo

Cancellation Rate

1.6%

22 of 1,356 flights

Diversion Rate

0.3%

4 of 1,356 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

PHL - Philadelphia

Full on-time, delay-cause, and seasonal performance for Philadelphia, PA.

PHL on-time profile

MKE - Milwaukee

Full on-time, delay-cause, and seasonal performance for Milwaukee, WI.

MKE on-time profile

Compare the two airports

See PHL and MKE side by side on delays, cancellations, and reliability.

Compare PHL vs MKE

Origin-hub reliability standing

Mid-pack among PHL departures

From PHL, this corridor sits with 60 other 75–85% on-time routes out of 65 tracked departures, not the hub's reliability leaders (4 at ≥85%) and not the softest ( 1 below 75%). Destination: Milwaukee · fleet on-time rank #1808 of 4927.

What the Data Says About PHL to MKE

Bureau of Transportation Statistics records show Philadelphia to Milwaukee (PHL to MKE) running a 83.4% on-time rate over 2,210 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 84.4 minutes. The 690-mile corridor is served by 9 carriers, and over the last 24 months 1.6% of 1,356 flights were cancelled, 0.3% diverted.

The monthly split is wide on this route: Oct 2022 posted the strongest performance at 93% on-time, while Aug 2024 came in at just 64% - a 29-point swing worth factoring into travel timing.

On the multi-year calendar, PHL–MKE peaks in December at 95.6% on-time while May carries the heaviest traffic (~64 flights per month) ; the softest month is August at 76.5%, a 19.1-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does PHL to MKE rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, PHL to MKE ranks #3701 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from PHL to MKE? ▼
Flights from Philadelphia to Milwaukee have a 83.4% on-time rate based on 2,210 flights. The average delay is 84.4 minutes. The best recent month was Oct 2022 with 93% on-time.
What is the cancellation rate for PHL to MKE? ▼
Over the last 24 months, 1.6% of flights on this route were cancelled (22 of 1,356 flights) and 0.3% were diverted.
How far is the flight from PHL to MKE? ▼
The flight distance from Philadelphia (PHL) to Milwaukee (MKE) is approximately 690 miles. This route is served by 9 carriers.
When is the best time to fly from PHL to MKE? ▼
The best recent month for on-time performance was Oct 2022 (93% on-time). The worst was Aug 2024 (64% on-time). Consider booking during months with historically better performance.

Airports on this route

PHL Airport

Philadelphia
MKE Airport

Milwaukee
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using PHL–MKE data

PHL–MKE runs 4.4 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare PHL and MKE airport profiles: delay causes and top routes differ even on the same corridor. PHL airport
  • If your dates flex, December (95.6% on-time) beats August (76.5%) on this corridor. Seasonal chart
  • 4 other routes post a similar 83.4% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.