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WanderNerd

Flight Reliability

UA 5456 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5456 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
20 min
Average arrival delay
1.7%
Cancelled
6 min early
Median arrival delay

Based on 299 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(48 flights)
  • Tue76%(37 flights)
  • Wed77%(43 flights)
  • Thu64%(45 flights)
  • Fri56%(45 flights)
  • Sat83%(30 flights)
  • Sun72%(46 flights)
On-time by departure window
  • 9 AM–12 PM80%(138 flights)
  • 12–3 PM75%(71 flights)
  • 3–6 PM53%(53 flights)
  • 6–9 PM50%(32 flights)
On-time trend by month
83%
May

Jun 54% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202554%24
July 202545%20
August 202548%29
September 202558%24
November 202590%29
December 202570%30
January 202674%31
February 202671%28
March 202684%19
April 202690%29
May 202683%24
Departures on time
73%
Diverted
0%
Flights flown
294
Months covered
12

Based on 299 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.