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Flight Reliability

UA 6266 · United Airlines

Louisville → Houston (SDF–IAH)

86
Pretty Reliable
WanderNerd Reliability Score
87%
Arrive within 15 minutes
7 min early
Average arrival delay
1.9%
Cancelled
15 min early
Median arrival delay

Based on 362 historical flights. Data through May 2026.

What the data says

Skip Monday if you can.

UA 6266 arrived on time 90% of the time on Sundays. On Mondays: 82%.

A bit ahead of the SDF–IAH route.

UA 6266 arrived on time 87% of the time, versus 83% across the SDF–IAH route.

Better than the United Airlines network average.

UA 6266 arrived on time 87% of the time, versus 79% across the United Airlines network.

Trending in the right direction.

UA 6266 arrived on time 90% of the time over the last three months in the data, compared with 82% in the three months before that.

The breakdown

On-time by weekday
  • Mon82%(49 flights)
  • Tue89%(52 flights)
  • Wed86%(50 flights)
  • Thu86%(49 flights)
  • Fri88%(51 flights)
  • Sat87%(52 flights)
  • Sun90%(51 flights)
On-time trend by month
81%
May

Jun 76% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%29
July 202576%29
August 202597%31
September 202597%30
October 202590%31
November 202586%29
December 202569%29
January 202686%28
February 202693%27
March 202693%30
April 202697%30
May 202681%31
Departures on time
90%
Diverted
0.3%
Flights flown
354
Months covered
12

Same route, other flights

Keep nerding

Based on 362 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.