Route · MKE → BOS · 2020–2025 BTS data
Milwaukee to Boston
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), MKE to BOS (Milwaukee to Boston) ranks #2979 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 78.7%
- On-time
- -0.3 pts
- vs US avg
- 82 min
- Delay when late
- 3,795
- Flights
- #2979 of 4927
- Corpus placement
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 |
MKE–BOS seasonal on-time pattern
Best: February (86.0%) · weakest: September (70.9%)
Strongest calendar month
February
86.0% on-time · ~55 flights/mo
Busiest calendar month
May
~94 flights/mo avg
Weakest calendar month
September
70.9% on-time · ~83 flights/mo
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.
MKE on-time profileBOS - Boston
Full on-time, delay-cause, and seasonal performance for Boston, MA.
BOS on-time profileCompare the two airports
See MKE and BOS side by side on delays, cancellations, and reliability.
Compare MKE vs BOSOrigin-hub reliability standing
Mid-pack among MKE departures
From MKE, this corridor sits with 18 other 75–85% on-time routes out of 27 tracked departures, not the hub's reliability leaders (9 at ≥85%) and not the softest ( 0 below 75%). Destination: Boston · fleet on-time rank #3610 of 4927.
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.
On the multi-year calendar, MKE–BOS peaks in February at 86.0% on-time while May carries the heaviest traffic (~94 flights per month) ; the softest month is September at 70.9%, a 15.1-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does MKE to BOS rank among US routes by traffic? ▼
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? ▼
Airports on this route
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 MKE–BOS data
MKE–BOS is mid-pack at 78.7% on-time; month and carrier mix move more than the corridor headline.
- Compare MKE and BOS airport profiles: delay causes and top routes differ even on the same corridor. MKE airport
- If your dates flex, February (86.0% on-time) beats September (70.9%) on this corridor. Seasonal chart
- 4 other routes post a similar 78.7% 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.
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.