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Flight Reliability

UA 5051 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5051 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

79%
Arrive within 15 minutes
20 min
Average arrival delay
1.7%
Cancelled
8 min early
Median arrival delay

Based on 343 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon79%(48 flights)
  • Tue90%(48 flights)
  • Wed79%(47 flights)
  • Thu74%(49 flights)
  • Fri79%(47 flights)
  • Sat78%(49 flights)
  • Sun78%(49 flights)
On-time by departure window
  • 6–9 AM81%(52 flights)
  • 9 AM–12 PM86%(83 flights)
  • 12–3 PM79%(57 flights)
  • 3–6 PM76%(21 flights)
  • 6–9 PM79%(101 flights)
  • 9 PM–12 AM57%(23 flights)
On-time trend by month
74%
May

Jun 63% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202563%30
July 202594%31
August 202556%25
September 202586%14
October 202587%31
November 202586%29
December 202577%30
January 202681%31
February 202685%27
March 202679%28
April 202683%30
May 202674%31
Departures on time
80%
Diverted
0%
Flights flown
337
Months covered
12

Keep nerding

Based on 343 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.