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

Dallas/Fort Worth, TX (DFW) to Louisville, KY (SDF) flight delay odds

Historically, 68.6% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 2,014 flights.

HISTORICAL ROUTE SIGNALVariable
68.6%arrived on time
20.3%30+ min late
3.5%cancelled
2,014scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late11.5%all scheduled flights
120+ minutes late5.7%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+17.5 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 morning34278.7%16.1%0.3%
Late morning36583.0%7.1%4.7%
Afternoon79366.6%21.7%3.9%
Evening50154.7%30.1%4.4%

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
Monday29367.9%23.9%3.1%
Tuesday27173.4%18.1%1.8%
Wednesday27772.6%17.0%1.8%
Thursday29568.8%21.0%2.0%
Friday29965.9%19.4%5.7%
Saturday27367.8%18.7%5.9%
Sunday30664.7%23.2%4.2%

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
American Airlines1,17460.8%26.4%3.1%
PSA Airlines46377.1%13.4%5.4%
Envoy Air30982.5%10.0%2.6%
SkyWest Airlines5682.1%5.4%3.6%
Spirit Airlines1283.3%16.7%0.0%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202519167.0%26.7%2.1%
August 202518667.7%19.9%5.4%
September 202518071.7%20.6%2.8%
October 202519673.0%16.8%2.6%
November 202515869.0%19.6%5.1%
December 202515365.4%28.8%0.0%
January 202611169.4%15.3%9.9%
February 202613167.9%19.1%2.3%
March 202617563.4%20.6%4.0%
April 202617570.9%18.3%1.7%
May 202618375.4%14.8%2.2%
June 202617561.7%21.7%6.3%

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.

Airline34.8%
Late aircraft50.8%
National airspace8.8%
Weather5.5%
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.