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Flight Reliability

UA 4532 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 4532 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

59%
Arrive within 15 minutes
39 min
Average arrival delay
3.3%
Cancelled
5 min
Median arrival delay

Based on 239 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon55%(29 flights)
  • Tue71%(34 flights)
  • Wed63%(32 flights)
  • Thu68%(31 flights)
  • Fri41%(32 flights)
  • Sat65%(37 flights)
  • Sun50%(34 flights)
On-time by departure window
  • 12–3 AM(1 flights)
  • 6–9 AM(5 flights)
  • 9 AM–12 PM69%(104 flights)
  • 12–3 PM55%(33 flights)
  • 3–6 PM43%(61 flights)
  • 9 PM–12 AM60%(25 flights)
On-time trend by month
79%
May

Jun 72% → May 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202572%18
August 202546%13
September 202589%27
October 202548%25
December 202544%27
January 202645%31
February 202664%28
April 202656%25
May 202679%19
Departures on time
66%
Diverted
0.8%
Flights flown
229
Months covered
12

Based on 239 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.