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Flight Reliability

UA 1428 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1428 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

85%
Arrive within 15 minutes
4 min early
Average arrival delay
2.8%
Cancelled
11 min early
Median arrival delay

Based on 360 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(52 flights)
  • Tue90%(52 flights)
  • Wed91%(53 flights)
  • Thu78%(54 flights)
  • Fri87%(54 flights)
  • Sat79%(34 flights)
  • Sun88%(51 flights)
On-time by departure window
  • 12–3 AM—(3 flights)
  • 6–9 AM88%(239 flights)
  • 12–3 PM83%(29 flights)
  • 3–6 PM85%(13 flights)
  • 6–9 PM76%(66 flights)
On-time trend by month
96%
May

Jun 86% → May 96% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202586%14
July 202576%29
August 202582%28
September 2025100%32
October 202579%56
November 202581%26
December 202583%30
January 202686%29
February 202670%23
March 202687%31
April 2026100%26
May 202696%26
Departures on time
87%
Diverted
0%
Flights flown
350
Months covered
12

Keep nerding

Based on 360 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.