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

Dallas, TX (DAL) to Louisville, KY (SDF) flight delay odds

71.8% of 351 official scheduled DAL-to-SDF flights arrived on time; 15.7% arrived at least 30 minutes late and 1.1% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
71.8%arrived on time
15.7%30+ min late
1.1%cancelled
351scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.8%all scheduled flights
120+ minutes late2.3%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+10.4 mincompleted flights

Which departure time was most reliable for DAL to SDF?

Among qualifying DAL-to-SDF departure window results, Late morning had the highest on-time rate: 84.4% of 141 flights. Afternoon was lowest at 62.3% across 191 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning14184.4%10.6%0.0%
Afternoon19162.3%19.9%1.6%

Which weekday was most reliable for DAL to SDF?

Among qualifying DAL-to-SDF weekday results, Wednesday had the highest on-time rate: 84.6% of 52 flights. Saturday was lowest at 61.1% across 36 flights.

DayFlightsOn time30+ minCancelled
Monday5275.0%11.5%1.9%
Tuesday5379.2%7.5%0.0%
Wednesday5284.6%7.7%0.0%
Thursday5362.3%28.3%0.0%
Friday5273.1%17.3%1.9%
Saturday3661.1%16.7%2.8%
Sunday5364.2%20.8%1.9%

Which airline was most reliable for DAL to SDF?

Only Southwest Airlines met the DAL-to-SDF airline threshold: 71.8% of 351 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines35171.8%15.7%1.1%

Which month was most reliable for DAL to SDF?

Among qualifying DAL-to-SDF month results, September 2025 had the highest on-time rate: 96.2% of 26 flights. June 2026 was lowest at 46.7% across 30 flights.

MonthFlightsOn time30+ minCancelled
July 20253158.1%19.4%0.0%
August 20252781.5%11.1%0.0%
September 20252696.2%0.0%0.0%
October 20253180.6%12.9%0.0%
November 20253070.0%23.3%3.3%
December 20253177.4%12.9%0.0%
January 20263177.4%0.0%9.7%
February 20262882.1%7.1%0.0%
March 20263171.0%16.1%0.0%
April 20262853.6%35.7%0.0%
May 20262770.4%18.5%0.0%
June 20263046.7%30.0%0.0%

What drove DAL to SDF delay minutes?

Late aircraft was the largest recorded DAL-to-SDF delay category, accounting for 45.3% of 4,894 BTS-attributed delay minutes during July 2025–June 2026.

Airline38.6%
Late aircraft45.3%
National airspace12.6%
Weather3.6%
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.