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

Detroit, MI (DTW) to Nashville, TN (BNA) flight delay odds

Historically, 77.4% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 2,417 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
77.4%arrived on time
12.8%30+ min late
1.4%cancelled
2,417scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.8%all scheduled flights
120+ minutes late1.7%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+5.0 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 morning77688.4%4.8%2.3%
Late morning11887.3%5.9%0.0%
Afternoon94073.6%15.4%1.1%
Evening48067.3%20.2%0.8%
Night10365.0%22.3%1.0%

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
Monday36174.8%13.3%2.5%
Tuesday34181.8%12.3%0.3%
Wednesday32781.0%9.8%0.6%
Thursday36180.3%11.1%0.3%
Friday35874.9%15.1%0.8%
Saturday29575.9%12.2%3.1%
Sunday37473.5%15.2%2.1%

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 Lines1,40377.8%13.2%1.9%
Southwest Airlines84677.0%11.8%0.7%
Spirit Airlines14677.4%13.7%0.7%
SkyWest Airlines2272.7%18.2%0.0%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202520972.2%17.2%1.4%
August 202521189.1%5.7%0.9%
September 202520190.0%4.5%0.0%
October 202523282.3%9.9%0.0%
November 202520176.6%13.9%1.5%
December 202520657.8%25.2%2.9%
January 202616770.7%15.6%5.4%
February 202615479.2%13.6%0.0%
March 202619974.9%15.6%2.0%
April 202620185.1%8.5%0.5%
May 202622674.8%13.3%1.8%
June 202621075.2%11.4%0.5%

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.

Airline39.3%
Late aircraft34.5%
National airspace23.6%
Weather2.3%
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.