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

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

Historically, 79.7% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 2,261 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
79.7%arrived on time
11.2%30+ min late
1.3%cancelled
2,261scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.1%all scheduled flights
120+ minutes late2.4%all scheduled flights
Diverted0.1%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 morning66988.5%5.8%0.9%
Late morning27986.4%9.3%0.7%
Afternoon73574.7%13.2%1.1%
Evening16459.8%21.3%2.4%
Night41478.0%13.5%2.4%

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
Monday34275.4%14.0%1.5%
Tuesday30685.0%8.5%1.6%
Wednesday30383.2%10.2%0.3%
Thursday31579.4%12.7%0.3%
Friday34377.8%11.4%1.2%
Saturday30784.7%8.8%0.3%
Sunday34574.2%12.2%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 Lines1,20480.6%11.9%1.5%
Southwest Airlines78478.6%9.1%1.0%
Frontier Airlines15075.3%15.3%2.0%
Spirit Airlines10982.6%14.7%0.0%
Republic Airways1492.9%0.0%7.1%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202521974.4%15.5%1.8%
August 202522782.8%9.7%0.0%
September 202521887.2%9.2%0.0%
October 202523290.5%6.0%0.0%
November 202516082.5%12.5%0.0%
December 202516569.1%17.6%2.4%
January 202615973.6%10.7%3.1%
February 202613880.4%9.4%2.2%
March 202615973.6%14.5%3.1%
April 202617583.4%8.0%1.1%
May 202620678.6%9.7%1.9%
June 202620375.4%13.3%1.5%

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.

Airline42.8%
Late aircraft29.0%
National airspace25.7%
Weather2.4%
Security0.1%
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.