MKE to BOS flight delays & on-time performance
Nonstop flights from General Mitchell International Airport to Boston Logan International Airport · 860 miles · Aug 2025 – Jul 2026
- BOS: Ground delay program, avg 1 hour and 10 minutes. Flights to BOS are delayed at their origin airports due to runway construction: average 1 hour and 10 minutes, up to 3 hours.
On-time arrivals
72%
arrived < 15 min late
Cancelled
3.1%
23 flights
Avg arrival delay
18 min
63 min when late
Airlines
3
740 flights tracked
Key facts
- Flights from Milwaukee (MKE) to Boston (BOS) arrived on time 72% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 3.1% were cancelled, and 11% arrived an hour or more late.
- Republic Airways was the most punctual airline here (74% on time); JetBlue was the least (69%).
- Departures scheduled around 12pm did best (91% on time); around 4pm did worst (52%).
- Friday was the most reliable day to fly (76% on time) and Wednesday the least (70%).
- The largest source of delay minutes was air traffic control & airport congestion (45%).
Which airline is most on time from MKE to BOS?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 74% | 4.0% | 17 min | 10.3% | 545 |
| JetBlue | 69% | 0.0% | 19 min | 12.8% | 172 |
| Delta Air Lines | 59% | 4.3% | 24 min | 9.1% | 23 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am75%75 flights
- 8am95%21 flights
- 9am86%56 flights
- 11am63%180 flights
- 12pm91%35 flights
- 1pm78%24 flights
- 2pm71%24 flights
- 4pm52%92 flights
- 6pm79%77 flights
- 7pm77%148 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday70%7.0% cancelled
- Tuesday72%4.5% cancelled
- Wednesday70%1.8% cancelled
- Thursday70%2.6% cancelled
- Friday76%0.9% cancelled
- Saturday71%2.5% cancelled
- Sunday75%2.1% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Air traffic control & airport congestion45%
- Late-arriving aircraft26%
- Airline (crew, maintenance, cleaning, fueling)22%
- Extreme weather8%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Air traffic control & airport congestion43%
- Airline (crew, maintenance, cleaning, fueling)39%
- Extreme weather17%
- Security0%
MKE to BOS: common questions
- How often are MKE to BOS flights on time?
- 72% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Milwaukee to Boston cancelled?
- 3.1% of scheduled flights were cancelled (23 of 740).
- How long are typical delays?
- Across all flights the average arrival delay was 18 min (early arrivals count as zero). Flights that were late arrived 63 min behind schedule on average, and 10.9% of flights were an hour or more late.
- How long is taxi time at MKE?
- Flights on this route spent 18 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BOS to MKE — 83% on time
More flights from Milwaukee
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: MKE → BOS, nonstop flights by US airlines that report to the DOT. How we calculate this.