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Flight Reliability

UA 587 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 587 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

82%
Arrive within 15 minutes
4 min
Average arrival delay
1.7%
Cancelled
5 min early
Median arrival delay

Based on 591 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon80%(78 flights)
  • Tue83%(84 flights)
  • Wed78%(86 flights)
  • Thu90%(88 flights)
  • Fri81%(83 flights)
  • Sat86%(87 flights)
  • Sun76%(72 flights)
On-time by departure window
  • 6–9 AM89%(292 flights)
  • 9 AM–12 PM88%(17 flights)
  • 12–3 PM74%(250 flights)
  • 6–9 PM79%(19 flights)
On-time trend by month
76%
May

Jun 93% → May 76% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%30
July 202579%28
August 202586%42
September 202587%54
October 202590%31
November 202560%30
December 202579%61
January 202685%61
February 202689%53
March 202674%73
April 202689%56
May 202676%59
Departures on time
86%
Diverted
0.5%
Flights flown
578
Months covered
12

Keep nerding

Based on 591 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.