Skip to content
WanderNerd

Flight Reliability

UA 5247 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5247 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
6 min
Average arrival delay
1.3%
Cancelled
5 min early
Median arrival delay

Based on 314 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon87%(45 flights)
  • Tue92%(48 flights)
  • Wed78%(46 flights)
  • Thu80%(45 flights)
  • Fri74%(43 flights)
  • Sat87%(37 flights)
  • Sun74%(46 flights)
On-time by departure window
  • 6–9 AM82%(17 flights)
  • 9 AM–12 PM78%(102 flights)
  • 12–3 PM83%(143 flights)
  • 3–6 PM86%(21 flights)
  • 6–9 PM82%(27 flights)
On-time trend by month
83%
May

Jun 83% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%29
July 202596%26
August 202596%22
September 202578%23
November 202590%30
December 202571%31
January 202689%26
February 202678%27
March 202679%29
April 202663%30
May 202683%30
Departures on time
85%
Diverted
0%
Flights flown
310
Months covered
12

Based on 314 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.