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Flight Reliability

UA 2133 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2133 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

68%
Arrive within 15 minutes
20 min
Average arrival delay
2.8%
Cancelled
0 min
Median arrival delay

Based on 710 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(104 flights)
  • Tue69%(99 flights)
  • Wed67%(104 flights)
  • Thu65%(96 flights)
  • Fri68%(102 flights)
  • Sat68%(88 flights)
  • Sun67%(94 flights)
On-time by departure window
  • 6–9 AM82%(85 flights)
  • 9 AM–12 PM84%(152 flights)
  • 3–6 PM58%(259 flights)
  • 9 PM–12 AM63%(191 flights)
On-time trend by month
71%
May

Jun 71% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202571%86
July 202555%80
August 202563%62
September 202569%58
October 202553%68
November 202570%79
December 202576%41
January 202675%59
February 202685%39
March 202683%29
April 202671%58
May 202671%28
Departures on time
68%
Diverted
0.4%
Flights flown
687
Months covered
12

Keep nerding

Based on 710 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.