Skip to content
WanderNerd
Check a flight

Flight Reliability

UA 533 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 533 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

63%
Arrive within 15 minutes
26 min
Average arrival delay
1.2%
Cancelled
4 min
Median arrival delay

Based on 662 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon60%(93 flights)
  • Tue66%(93 flights)
  • Wed71%(92 flights)
  • Thu65%(97 flights)
  • Fri59%(98 flights)
  • Sat65%(86 flights)
  • Sun52%(92 flights)
On-time by departure window
  • 6–9 AM94%(68 flights)
  • 12–3 PM75%(20 flights)
  • 3–6 PM60%(243 flights)
  • 6–9 PM57%(320 flights)
On-time trend by month
71%
May

Jun 43% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202543%35
July 202535%60
August 202555%60
September 202564%59
October 202555%55
November 202553%30
December 202542%43
January 202678%86
February 202688%59
March 202664%75
April 202690%31
May 202671%58
Departures on time
68%
Diverted
0.5%
Flights flown
651
Months covered
12

Keep nerding

Based on 662 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.