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Flight Reliability

UA 1563 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1563 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
13 min
Average arrival delay
0.2%
Cancelled
2 min early
Median arrival delay

Based on 504 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(75 flights)
  • Tue73%(67 flights)
  • Wed73%(71 flights)
  • Thu69%(73 flights)
  • Fri73%(73 flights)
  • Sat73%(69 flights)
  • Sun64%(73 flights)
On-time by departure window
  • 9 AM–12 PM34%(35 flights)
  • 3–6 PM73%(144 flights)
  • 6–9 PM75%(322 flights)
On-time trend by month
82%
May

Jun 41% → May 82% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202541%58
July 202546%61
August 202567%24
September 202589%26
October 202575%56
November 202566%29
December 202576%46
January 202694%31
February 202689%28
March 202681%31
April 202682%60
May 202682%51
Departures on time
74%
Diverted
0.4%
Flights flown
501
Months covered
12

Keep nerding

Based on 504 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.