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Flight Reliability

UA 787 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 787 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

71%
Arrive within 15 minutes
17 min
Average arrival delay
1.1%
Cancelled
1 min early
Median arrival delay

Based on 530 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(76 flights)
  • Tue74%(73 flights)
  • Wed78%(76 flights)
  • Thu67%(72 flights)
  • Fri65%(75 flights)
  • Sat76%(74 flights)
  • Sun67%(75 flights)
On-time by departure window
  • 9 AM–12 PM56%(18 flights)
  • 12–3 PM74%(90 flights)
  • 3–6 PM64%(92 flights)
  • 6–9 PM71%(164 flights)
  • 9 PM–12 AM75%(157 flights)
On-time trend by month
80%
May

Jun 63% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202563%57
July 202556%61
August 202566%62
September 202585%54
October 202574%31
November 202566%29
December 202589%45
January 202657%35
February 202679%28
March 202655%33
April 202684%56
May 202680%30
Departures on time
75%
Diverted
0.6%
Flights flown
521
Months covered
12

Keep nerding

Based on 530 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.