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Route Reliability

Louisville → Dallas

SDF–DAL · 725 miles · Louisville Muhammad Ali International Airport to Dallas Love Field

84
Pretty Reliable
WanderNerd Reliability Score
86%
Arrive within 15 minutes
3 min early
Average arrival delay
0.6%
Cancelled
351
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 86% of the time across 351 flights. No comparison to make.

What the data says

The 3–6 AM departure wins.

SDF–DAL flights departing between 3–6 AM arrived on time 100% of the time, versus 70% between 9 AM–12 PM.

Sunday scaries are real for this one.

SDF–DAL flights arrived on time 96% of the time on Fridays and just 78% on Sundays. That gap is worth planning around.

Recent months have been rougher.

SDF–DAL flights arrived on time 79% of the time over the last three months in the data, compared with 92% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon85%(52 flights)
  • Tue84%(50 flights)
  • Wed85%(52 flights)
  • Thu87%(53 flights)
  • Fri96%(51 flights)
  • Sat91%(33 flights)
  • Sun78%(51 flights)
On-time by departure window
  • 3–6 AM100%(13 flights)
  • 6–9 AM93%(43 flights)
  • 9 AM–12 PM70%(33 flights)
  • 12–3 PM89%(169 flights)
  • 3–6 PM83%(75 flights)
  • 6–9 PM—(9 flights)
On-time trend by month
79%
May

Jun 80% → May 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%30
July 202590%30
August 202581%26
September 202596%25
October 202580%30
November 202593%30
December 202594%31
January 202690%29
February 202693%28
March 202684%31
April 202675%28
May 202679%24

Same trip, other airports

Keep nerding

Based on 351 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.