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

Atlanta, GA (ATL) to Detroit, MI (DTW) flight delay odds

Historically, 77.3% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 4,871 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
77.3%arrived on time
14.1%30+ min late
0.8%cancelled
4,871scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.3%all scheduled flights
120+ minutes late2.5%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+8.3 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 morning85589.1%6.4%1.2%
Late morning92278.4%13.0%1.2%
Afternoon1,40678.2%13.2%0.9%
Evening1,05373.1%17.6%0.3%
Night63564.6%22.5%0.6%

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
Monday72373.6%17.6%1.5%
Tuesday67478.6%13.8%0.0%
Wednesday66885.3%8.7%0.1%
Thursday71780.1%11.9%0.1%
Friday72676.0%15.2%0.6%
Saturday63878.4%13.2%0.6%
Sunday72569.8%18.2%2.6%

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 Lines3,69879.0%13.0%0.5%
Spirit Airlines67274.7%16.1%2.1%
Frontier Airlines50168.3%20.4%1.4%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202544365.5%23.5%0.2%
August 202544778.5%13.9%0.4%
September 202542187.6%6.4%0.2%
October 202542785.0%9.8%0.0%
November 202537582.1%12.5%1.3%
December 202537973.1%15.8%1.1%
January 202639575.4%14.4%2.5%
February 202635680.3%11.2%0.3%
March 202642269.4%19.9%1.9%
April 202642683.8%8.2%0.9%
May 202640368.2%20.3%0.2%
June 202637778.8%13.0%0.8%

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.

Airline45.6%
Late aircraft33.9%
National airspace15.5%
Weather4.7%
Security0.3%
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.