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Route Reliability

Las Vegas → Louisville

LAS–SDF · 1,624 miles · Harry Reid International Airport to Louisville Muhammad Ali International Airport

75
Usually Fine
WanderNerd Reliability Score
72%
Arrive within 15 minutes
12 min
Average arrival delay
1.0%
Cancelled
399
Flights in the data

Data through May 2026.

Airlines on this route

  • Southwest Airlines70% on time · 365 flights
  • Spirit Airlines94% on time · 33 flights
  • American Airlines100% on time · 1 flights

Too little history on this route to call a winner. We rank airlines only after 100 flights each.

What the data says

Morning flights do better here.

LAS–SDF flights departing between 6–9 AM arrived on time 93% of the time, versus 40% between 6–9 PM.

Tuesdays have been rough.

LAS–SDF flights arrived on time 79% of the time on Wednesdays and just 61% on Tuesdays. That gap is worth planning around.

Ticking up lately.

LAS–SDF flights arrived on time 76% of the time over the last three months in the data, compared with 70% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon73%(59 flights)
  • Tue61%(51 flights)
  • Wed79%(52 flights)
  • Thu75%(61 flights)
  • Fri70%(60 flights)
  • Sat73%(51 flights)
  • Sun71%(61 flights)
On-time by departure window
  • 6–9 AM93%(53 flights)
  • 9 AM–12 PM78%(88 flights)
  • 12–3 PM69%(16 flights)
  • 3–6 PM73%(180 flights)
  • 6–9 PM40%(58 flights)
On-time trend by month
66%
May

Jun 52% → May 66% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202552%29
July 202558%31
August 202571%31
September 202578%46
October 202577%48
November 202582%28
December 202555%31
January 202669%29
February 202686%28
March 202671%31
April 202690%31
May 202666%32

Keep nerding

Based on 399 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.