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Flight Reliability

UA 433 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 433 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
1 min
Average arrival delay
1.0%
Cancelled
8 min early
Median arrival delay

Based on 525 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(79 flights)
  • Tue82%(74 flights)
  • Wed87%(75 flights)
  • Thu80%(80 flights)
  • Fri79%(80 flights)
  • Sat92%(62 flights)
  • Sun80%(69 flights)
On-time by departure window
  • 6–9 AM94%(166 flights)
  • 9 AM–12 PM69%(188 flights)
  • 12–3 PM83%(119 flights)
  • 3–6 PM85%(26 flights)
  • 6–9 PM90%(19 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
40%
May

Jun 88% → May 40% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202588%51
July 202591%54
August 202588%56
September 202587%60
October 202593%56
November 202589%28
December 202581%31
January 2026100%31
February 2026100%26
March 202681%32
April 202653%47
May 202640%47
Departures on time
84%
Diverted
0.2%
Flights flown
519
Months covered
12

Keep nerding

Based on 525 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.