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WanderNerd

Flight Reliability

UA 4371 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 4371 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

88%
Arrive within 15 minutes
4 min early
Average arrival delay
2.5%
Cancelled
14 min early
Median arrival delay

Based on 284 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon88%(40 flights)
  • Tue88%(40 flights)
  • Wed91%(44 flights)
  • Thu85%(41 flights)
  • Fri95%(42 flights)
  • Sat88%(32 flights)
  • Sun84%(38 flights)
On-time by departure window
  • 6–9 AM(3 flights)
  • 9 AM–12 PM87%(209 flights)
  • 3–6 PM94%(31 flights)
  • 6–9 PM91%(34 flights)
On-time trend by month
80%
May

Jul 94% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
July 202594%31
August 202591%22
October 202596%26
November 202589%28
December 202583%24
January 202693%28
February 202675%24
March 202683%29
April 202690%29
May 202680%20
Departures on time
88%
Diverted
0%
Flights flown
277
Months covered
12

Based on 284 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.