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

Baltimore, MD (BWI) to Detroit, MI (DTW) flight delay odds

Historically, 80.2% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 2,257 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
80.2%arrived on time
11.7%30+ min late
1.8%cancelled
2,257scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.2%all scheduled flights
120+ minutes late2.9%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+4.8 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 morning38690.7%3.9%2.3%
Late morning64286.1%7.0%0.8%
Afternoon43382.0%9.7%1.2%
Evening51673.6%18.2%2.3%
Night28061.8%24.6%3.2%

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
Monday34276.6%15.8%2.0%
Tuesday30685.3%8.5%2.0%
Wednesday30085.3%7.0%0.3%
Thursday31584.4%10.8%0.3%
Friday34378.4%12.2%2.3%
Saturday30681.4%10.1%1.3%
Sunday34571.9%16.5%3.8%

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
Delta Air Lines1,20485.4%9.1%1.7%
Southwest Airlines78574.4%14.6%1.9%
Frontier Airlines14871.6%16.9%2.0%
Spirit Airlines10676.4%15.1%0.9%
Republic Airways1485.7%0.0%7.1%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202521670.4%20.8%2.8%
August 202522784.6%9.7%0.0%
September 202521886.7%7.8%0.9%
October 202523190.9%4.3%0.0%
November 202516083.8%8.8%1.2%
December 202516568.5%18.8%3.0%
January 202615980.5%10.1%3.8%
February 202613882.6%10.9%2.2%
March 202615971.7%15.7%3.8%
April 202617582.3%9.7%1.1%
May 202620679.1%10.7%1.9%
June 202620377.8%15.3%2.0%

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.

Airline33.9%
Late aircraft49.6%
National airspace14.2%
Weather2.2%
Security0.2%
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.