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Flight Reliability

UA 1287 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1287 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

71%
Arrive within 15 minutes
12 min
Average arrival delay
1.6%
Cancelled
4 min early
Median arrival delay

Based on 502 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon69%(68 flights)
  • Tue81%(72 flights)
  • Wed76%(70 flights)
  • Thu74%(68 flights)
  • Fri69%(71 flights)
  • Sat73%(69 flights)
  • Sun58%(71 flights)
On-time by departure window
  • 9 AM–12 PM65%(85 flights)
  • 12–3 PM77%(91 flights)
  • 3–6 PM71%(55 flights)
  • 6–9 PM65%(161 flights)
  • 9 PM–12 AM83%(97 flights)
On-time trend by month
81%
May

Jun 77% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%30
July 202562%29
August 202560%30
September 202571%35
October 202548%31
November 202561%57
December 202560%30
January 202681%53
February 202681%37
March 202665%57
April 202690%59
May 202681%41
Departures on time
72%
Diverted
1.0%
Flights flown
489
Months covered
12

Keep nerding

Based on 502 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.