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

Boston, MA (BOS) to Detroit, MI (DTW) flight delay odds

75.8% of 2,591 official scheduled BOS-to-DTW flights arrived on time; 15.4% arrived at least 30 minutes late and 2.1% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
75.8%arrived on time
15.4%30+ min late
2.1%cancelled
2,591scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.0%all scheduled flights
120+ minutes late3.4%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+7.6 mincompleted flights

Which departure time was most reliable for BOS to DTW?

Among qualifying BOS-to-DTW departure window results, Early morning had the highest on-time rate: 90.1% of 647 flights. Night was lowest at 55.7% across 79 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning64790.1%5.3%2.5%
Late morning44487.8%7.7%1.8%
Afternoon82171.3%17.7%2.1%
Evening60060.3%27.3%2.0%
Night7955.7%27.8%2.5%

Which weekday was most reliable for BOS to DTW?

Among qualifying BOS-to-DTW weekday results, Wednesday had the highest on-time rate: 81.6% of 354 flights. Sunday was lowest at 68.1% across 389 flights.

DayFlightsOn time30+ minCancelled
Monday39273.5%15.3%4.8%
Tuesday35579.7%11.5%2.3%
Wednesday35481.6%12.1%0.3%
Thursday38575.6%15.8%1.3%
Friday39074.1%15.4%2.1%
Saturday32679.4%12.9%0.9%
Sunday38968.1%23.7%2.8%

Which airline was most reliable for BOS to DTW?

Among qualifying BOS-to-DTW airline results, Spirit Airlines had the highest on-time rate: 82.6% of 155 flights. JetBlue Airways was lowest at 69.6% across 723 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines1,71277.8%13.8%2.0%
JetBlue Airways72369.6%19.6%2.8%
Spirit Airlines15582.6%12.9%0.0%
Republic Airways1100.0%0.0%0.0%

Which month was most reliable for BOS to DTW?

Among qualifying BOS-to-DTW month results, September 2025 had the highest on-time rate: 84.9% of 245 flights. July 2025 was lowest at 64.4% across 250 flights.

MonthFlightsOn time30+ minCancelled
July 202525064.4%25.2%3.2%
August 202525082.0%12.8%0.4%
September 202524584.9%10.2%0.4%
October 202527877.3%13.3%1.4%
November 202522877.6%16.7%1.3%
December 202519867.2%21.2%1.0%
January 202616769.5%18.0%7.8%
February 202615576.8%9.7%8.4%
March 202618182.3%11.6%1.7%
April 202620380.3%12.8%0.5%
May 202621576.7%12.1%0.5%
June 202622169.2%19.9%2.3%

What drove BOS to DTW delay minutes?

Late aircraft was the largest recorded BOS-to-DTW delay category, accounting for 46.3% of 42,452 BTS-attributed delay minutes during July 2025–June 2026.

Airline34.1%
Late aircraft46.3%
National airspace17.2%
Weather2.3%
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.