BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
MKEBOS

Milwaukee, WI (MKE) to Boston, MA (BOS) flight delay odds

Historically, 67.5% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 741 flights.

HISTORICAL ROUTE SIGNALVariable
67.5%arrived on time
22.0%30+ min late
3.2%cancelled
741scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late13.0%all scheduled flights
120+ minutes late3.5%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+10.6 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning9675.0%11.5%6.2%
Late morning20763.8%25.6%1.9%
Afternoon20662.1%28.2%1.5%
Evening23272.4%17.7%4.7%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday11564.3%20.9%7.8%
Tuesday11369.0%23.0%2.7%
Wednesday11164.0%22.5%2.7%
Thursday11364.6%22.1%3.5%
Friday11169.4%24.3%0.9%
Saturday7970.9%16.5%2.5%
Sunday9971.7%23.2%2.0%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
Republic Airways54970.1%19.5%4.0%
JetBlue Airways17259.9%30.8%0.6%
Delta Air Lines2060.0%15.0%5.0%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 20258549.4%37.6%3.5%
August 20258775.9%17.2%1.1%
September 20257846.2%38.5%1.3%
October 20258247.6%40.2%2.4%
November 20255470.4%13.0%13.0%
December 20253268.8%15.6%3.1%
January 20263161.3%22.6%9.7%
February 20262878.6%7.1%7.1%
March 20264893.8%2.1%4.2%
April 20265176.5%13.7%0.0%
May 20268377.1%19.3%0.0%
June 20268282.9%9.8%2.4%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline24.2%
Late aircraft27.3%
National airspace42.7%
Weather5.8%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.