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Route Reliability

Louisville → Houston

SDF–IAH · 788 miles · Louisville Muhammad Ali International Airport to George Bush Intercontinental Airport

84
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
4 min
Average arrival delay
1.3%
Cancelled
1,069
Flights in the data

Data through May 2026.

Airlines on this route

  • United Airlines83% on time · 1,068 flights
  • American Airlines0% 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.

SDF–IAH flights departing between 6–9 AM arrived on time 87% of the time, versus 76% between 3–6 PM.

Tuesday comes out ahead.

A small edge: 86% on time on Tuesdays against 81% on Mondays.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon81%(151 flights)
  • Tue86%(153 flights)
  • Wed82%(153 flights)
  • Thu84%(151 flights)
  • Fri81%(154 flights)
  • Sat82%(135 flights)
  • Sun82%(155 flights)
On-time by departure window
  • 6–9 AM87%(356 flights)
  • 9 AM–12 PM86%(338 flights)
  • 12–3 PM—(2 flights)
  • 3–6 PM76%(356 flights)
On-time trend by month
72%
May

Jun 71% → May 72% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202571%86
July 202569%87
August 202583%90
September 202591%90
October 202590%93
November 202586%87
December 202576%91
January 202682%82
February 202695%79
March 202690%81
April 202687%91
May 202672%95

Same trip, other airports

Keep nerding

Based on 1,069 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.