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Flight Reliability

UA 502 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 502 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

89%
Arrive within 15 minutes
6 min early
Average arrival delay
0.9%
Cancelled
13 min early
Median arrival delay

Based on 335 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon95%(56 flights)
  • Tue86%(35 flights)
  • Wed94%(35 flights)
  • Thu93%(56 flights)
  • Fri88%(57 flights)
  • Sat82%(38 flights)
  • Sun84%(55 flights)
On-time by departure window
  • 6–9 AM85%(34 flights)
  • 9 AM–12 PM92%(192 flights)
  • 12–3 PM87%(45 flights)
  • 3–6 PM76%(45 flights)
  • 6–9 PM100%(16 flights)
On-time trend by month
90%
May

Jun 90% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%29
July 202588%17
August 202594%17
September 202594%17
October 202593%29
November 2025100%19
December 202584%31
January 202687%54
February 202679%38
March 202697%30
April 202681%21
May 202690%30
Departures on time
90%
Diverted
0%
Flights flown
332
Months covered
12

Keep nerding

Based on 335 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.