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Flight Reliability

UA 1284 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1284 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

87%
Arrive within 15 minutes
3 min early
Average arrival delay
0.4%
Cancelled
10 min early
Median arrival delay

Based on 267 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon84%(38 flights)
  • Tue92%(39 flights)
  • Wed92%(39 flights)
  • Thu87%(38 flights)
  • Fri92%(36 flights)
  • Sat84%(37 flights)
  • Sun79%(38 flights)
On-time by departure window
  • 6–9 AM91%(56 flights)
  • 9 AM–12 PM98%(58 flights)
  • 12–3 PM—(4 flights)
  • 3–6 PM82%(135 flights)
  • 6–9 PM75%(12 flights)
On-time trend by month
80%
May

Aug 85% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202585%13
September 202597%30
October 2025100%31
November 202597%29
December 202578%45
January 202680%35
February 202689%28
April 202682%27
May 202680%20
Departures on time
87%
Diverted
0.4%
Flights flown
265
Months covered
10

Keep nerding

Based on 267 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.