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Flight Reliability

UA 1015 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1015 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

56%
Arrive within 15 minutes
34 min
Average arrival delay
3.3%
Cancelled
10 min
Median arrival delay

Based on 389 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon53%(59 flights)
  • Tue60%(42 flights)
  • Wed61%(46 flights)
  • Thu52%(63 flights)
  • Fri53%(62 flights)
  • Sat67%(43 flights)
  • Sun48%(60 flights)
On-time by departure window
  • 6–9 AM93%(29 flights)
  • 9 AM–12 PM—(3 flights)
  • 12–3 PM—(9 flights)
  • 3–6 PM67%(12 flights)
  • 6–9 PM47%(290 flights)
  • 9 PM–12 AM81%(32 flights)
On-time trend by month
79%
May

Jun 30% → May 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202530%30
July 202524%29
August 202556%32
September 202554%39
October 202517%30
November 202558%26
December 202571%31
January 202658%26
February 202667%18
March 202659%17
April 202673%45
May 202679%52
Departures on time
65%
Diverted
0.3%
Flights flown
375
Months covered
12

Keep nerding

Based on 389 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.