Route · MKE → BOS · 2020–2025 BTS data
Milwaukee to Boston
The MKE–BOS corridor (Milwaukee, WI → Boston, MA) runs behind the national average, served by 18 carriers across roughly 860 miles.
Data updated 2026-06-13
- 78.7%
- On-time
- -0.3 pts
- vs US avg
- 82 min
- Delay when late
- 3,795
- Flights
Cancelled
1.6%
Best Month
Feb 2024 95%
Worst Month
Sep 2025 47%
Distance
860 mi
Carriers
18
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 32 | 9 | 1 | 0 | DL,YX |
| Nov 2025 | 54 | 9 | 7 | 0 | YX |
| Oct 2025 | 82 | 41 | 2 | 0 | B6,YX |
| Sep 2025 | 78 | 41 | 1 | 0 | YX,B6 |
| Aug 2025 | 87 | 20 | 1 | 0 | YX,B6 |
| Jul 2025 | 85 | 39 | 3 | 1 | B6,YX |
| Jun 2025 | 84 | 27 | 0 | 0 | B6,YX |
| May 2025 | 88 | 38 | 1 | 0 | B6,YX |
| Apr 2025 | 55 | 8 | 0 | 0 | YX,B6 |
| Mar 2025 | 52 | 6 | 0 | 0 | YX |
| Jan 2025 | 31 | 2 | 0 | 0 | YX |
| Dec 2024 | 47 | 7 | 0 | 0 | YX |
| Nov 2024 | 46 | 7 | 0 | 0 | YX |
| Oct 2024 | 79 | 13 | 0 | 0 | YX,B6 |
| Sep 2024 | 74 | 16 | 0 | 0 | YX,B6 |
| Aug 2024 | 88 | 21 | 2 | 0 | B6,YX |
| Jul 2024 | 84 | 16 | 2 | 0 | B6,DL,YX |
| Jun 2024 | 84 | 17 | 1 | 0 | B6,DL,YX |
| May 2024 | 87 | 19 | 0 | 1 | B6,YX |
| Apr 2024 | 86 | 16 | 0 | 0 | B6,YX |
| Mar 2024 | 88 | 11 | 0 | 0 | B6,YX |
| Feb 2024 | 57 | 3 | 1 | 0 | B6,YX |
| Jan 2024 | 34 | 9 | 3 | 0 | B6,YX |
| Dec 2023 | 75 | 6 | 1 | 1 | OO,B6,YX |
Cancellation Rate
1.6%
26 of 1,657 flights
Diversion Rate
0.2%
3 of 1,657 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
MKE - Milwaukee
Full on-time, delay-cause, and seasonal performance for Milwaukee, WI.
Origin airport →BOS - Boston
Full on-time, delay-cause, and seasonal performance for Boston, MA.
Destination airport →Compare the two airports
See MKE and BOS side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to MKE–BOS.
Routes with a similar on-time rate
What the Data Says About MKE to BOS
3,795 tracked flights put the MKE to BOS pairing (Milwaukee to Boston) at a 78.7% on-time rate, squarely in line with the wider network. Delays that do occur run 81.8 minutes on average. Across the 860-mile route and its 18 carriers, the trailing 24 months show 1.6% cancelled and 0.2% diverted (1,657 flights sampled).
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 95% on-time, while Sep 2025 came in at just 47% - a 47-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from MKE to BOS? ▼
What is the cancellation rate for MKE to BOS? ▼
How far is the flight from MKE to BOS? ▼
When is the best time to fly from MKE to BOS? ▼
Flight Guides
Tips and data-driven advice for choosing reliable routes.
Explore PlainFlights
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.