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WanderNerd

Flight Reliability

UA 3528 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 3528 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

80%
Arrive within 15 minutes
2 min
Average arrival delay
6.5%
Cancelled
9 min early
Median arrival delay

Based on 325 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon88%(42 flights)
  • Tue87%(45 flights)
  • Wed75%(44 flights)
  • Thu76%(42 flights)
  • Fri83%(46 flights)
  • Sat80%(44 flights)
  • Sun73%(41 flights)
On-time by departure window
  • 6–9 AM86%(14 flights)
  • 9 AM–12 PM84%(19 flights)
  • 12–3 PM73%(11 flights)
  • 3–6 PM80%(188 flights)
  • 6–9 PM81%(48 flights)
  • 9 PM–12 AM79%(24 flights)
On-time trend by month
83%
May

Jun 70% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%27
July 202568%28
August 202573%30
September 202584%25
October 202587%30
November 202583%24
December 202583%30
January 202682%28
February 202689%26
March 202676%21
May 202683%30
Departures on time
82%
Diverted
0%
Flights flown
304
Months covered
12

Based on 325 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.