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Flight Reliability

UA 1528 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1528 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

77%
Arrive within 15 minutes
10 min
Average arrival delay
2.4%
Cancelled
4 min early
Median arrival delay

Based on 253 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(33 flights)
  • Tue82%(33 flights)
  • Wed76%(38 flights)
  • Thu79%(38 flights)
  • Fri73%(33 flights)
  • Sat73%(33 flights)
  • Sun73%(37 flights)
On-time by departure window
  • 6–9 AM86%(36 flights)
  • 9 AM–12 PM78%(36 flights)
  • 12–3 PM84%(37 flights)
  • 3–6 PM90%(20 flights)
  • 6–9 PM71%(113 flights)
  • 9 PM–12 AM—(3 flights)
On-time trend by month
80%
Mar

Jul 65% → Mar 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
July 202565%23
August 202546%11
September 202574%27
October 202584%31
November 202573%33
December 202582%17
January 202672%25
February 202691%43
March 202680%30
Departures on time
78%
Diverted
0.8%
Flights flown
245
Months covered
10

Keep nerding

Based on 253 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.