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WanderNerd

Flight Reliability

UA 6158 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 6158 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

87%
Arrive within 15 minutes
1 min early
Average arrival delay
1.6%
Cancelled
8 min early
Median arrival delay

Based on 186 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon85%(27 flights)
  • Tue82%(33 flights)
  • Wed89%(27 flights)
  • Thu92%(24 flights)
  • Fri92%(25 flights)
  • Sat92%(24 flights)
  • Sun82%(22 flights)
On-time by departure window
  • 9 AM–12 PM(4 flights)
  • 12–3 PM87%(141 flights)
  • 3–6 PM91%(23 flights)
  • 6–9 PM(5 flights)
  • 9 PM–12 AM(9 flights)
On-time trend by month
97%
Apr

Aug 94% → Apr 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202594%16
September 2025100%10
October 202584%25
January 202679%24
February 202688%24
March 202683%30
April 202697%29
Departures on time
86%
Diverted
0.5%
Flights flown
182
Months covered
12

Based on 186 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.