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Flight Reliability

UA 1100 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1100 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

89%
Arrive within 15 minutes
4 min early
Average arrival delay
0%
Cancelled
10 min early
Median arrival delay

Based on 381 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon88%(57 flights)
  • Tue83%(47 flights)
  • Wed94%(48 flights)
  • Thu97%(59 flights)
  • Fri88%(59 flights)
  • Sat92%(51 flights)
  • Sun83%(58 flights)
On-time by departure window
  • 6–9 AM93%(144 flights)
  • 9 AM–12 PM95%(37 flights)
  • 12–3 PM90%(100 flights)
  • 3–6 PM80%(45 flights)
  • 6–9 PM81%(52 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
93%
May

Jun 100% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%22
July 2025100%20
August 202593%27
September 202582%50
October 202587%31
November 202583%30
December 202590%31
January 202692%26
February 202682%27
March 202689%55
April 202690%30
May 202693%30
Departures on time
89%
Diverted
0.5%
Flights flown
379
Months covered
12

Keep nerding

Based on 381 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.