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Flight Reliability

UA 5371 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5371 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
14 min
Average arrival delay
2.1%
Cancelled
5 min early
Median arrival delay

Based on 326 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon76%(45 flights)
  • Tue82%(44 flights)
  • Wed81%(47 flights)
  • Thu89%(47 flights)
  • Fri75%(47 flights)
  • Sat70%(43 flights)
  • Sun78%(46 flights)
On-time by departure window
  • 6–9 AM91%(11 flights)
  • 9 AM–12 PM76%(247 flights)
  • 12–3 PM87%(55 flights)
  • 3–6 PM—(6 flights)
On-time trend by month
77%
May

Jun 83% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%30
July 202571%31
August 202571%28
September 202586%29
October 202590%31
November 202579%28
December 202566%29
January 202686%29
February 202689%26
March 202665%26
May 202677%31
Departures on time
81%
Diverted
0%
Flights flown
319
Months covered
12

Keep nerding

Based on 326 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.