Route · BOS → MKE · 2020–2025 BTS data
Boston to Milwaukee
The BOS–MKE corridor (Boston, MA → Milwaukee, WI) runs ahead of the national average, served by 18 carriers across roughly 860 miles.
Data updated 2026-06-13
- 82.7%
- On-time
- +3.7 pts
- vs US avg
- 75 min
- Delay when late
- 3,794
- Flights
Cancelled
1.4%
Best Month
Feb 2024 96%
Worst Month
Jul 2025 68%
Distance
860 mi
Carriers
18
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 33 | 11 | 1 | 0 | DL,YX |
| Nov 2025 | 54 | 10 | 7 | 0 | YX |
| Oct 2025 | 82 | 16 | 2 | 0 | B6,YX |
| Sep 2025 | 78 | 24 | 1 | 0 | YX,B6 |
| Aug 2025 | 87 | 14 | 1 | 0 | YX,B6 |
| Jul 2025 | 85 | 27 | 3 | 0 | B6,YX |
| Jun 2025 | 84 | 14 | 0 | 0 | B6,YX |
| May 2025 | 87 | 23 | 1 | 0 | B6,YX |
| Apr 2025 | 55 | 6 | 0 | 0 | YX,B6 |
| Mar 2025 | 51 | 4 | 0 | 0 | YX |
| Jan 2025 | 31 | 1 | 1 | 1 | YX |
| Dec 2024 | 47 | 4 | 0 | 0 | YX |
| Nov 2024 | 46 | 7 | 0 | 0 | YX |
| Oct 2024 | 79 | 9 | 0 | 0 | YX,B6 |
| Sep 2024 | 74 | 6 | 0 | 0 | YX,B6 |
| Aug 2024 | 88 | 11 | 2 | 1 | B6,YX |
| Jul 2024 | 84 | 14 | 2 | 0 | B6,DL,YX |
| Jun 2024 | 84 | 14 | 1 | 0 | B6,DL,YX |
| May 2024 | 87 | 16 | 0 | 1 | B6,YX |
| Apr 2024 | 86 | 15 | 0 | 0 | B6,YX |
| Mar 2024 | 88 | 9 | 0 | 0 | B6,YX |
| Feb 2024 | 57 | 2 | 0 | 0 | B6,YX |
| Jan 2024 | 34 | 5 | 2 | 1 | B6,YX |
| Dec 2023 | 75 | 5 | 0 | 0 | OO,B6,YX |
Cancellation Rate
1.4%
24 of 1,656 flights
Diversion Rate
0.2%
4 of 1,656 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
BOS - Boston
Full on-time, delay-cause, and seasonal performance for Boston, MA.
Origin airport →MKE - Milwaukee
Full on-time, delay-cause, and seasonal performance for Milwaukee, WI.
Destination airport →Compare the two airports
See BOS and MKE side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to BOS–MKE.
Routes with a similar on-time rate
What the Data Says About BOS to MKE
Bureau of Transportation Statistics records show Boston to Milwaukee (BOS to MKE) running a 82.7% on-time rate over 3,794 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 75.0 minutes. The 860-mile corridor is served by 18 carriers, and over the last 24 months 1.4% of 1,656 flights were cancelled, 0.2% diverted.
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 96% on-time, while Jul 2025 came in at just 68% - a 28-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.
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.