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Flight Reliability

UA 6233 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 6233 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

82%
Arrive within 15 minutes
13 min
Average arrival delay
1.0%
Cancelled
10 min early
Median arrival delay

Based on 208 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon73%(26 flights)
  • Tue85%(39 flights)
  • Wed85%(33 flights)
  • Thu81%(32 flights)
  • Fri82%(28 flights)
  • Sat74%(19 flights)
  • Sun86%(29 flights)
On-time by departure window
  • 9 AM–12 PM—(6 flights)
  • 12–3 PM—(6 flights)
  • 3–6 PM87%(140 flights)
  • 6–9 PM70%(54 flights)
On-time trend by month
93%
May

Jun 58% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202558%24
August 202567%12
September 202581%26
October 202582%22
December 202586%14
January 202686%21
February 2026100%20
March 202679%28
May 202693%29
Departures on time
80%
Diverted
0%
Flights flown
206
Months covered
12

Keep nerding

Based on 208 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.