Skip to content
WanderNerd
Check a flight

Flight Reliability

UA 1333 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1333 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

70%
Arrive within 15 minutes
16 min
Average arrival delay
1.4%
Cancelled
1 min
Median arrival delay

Based on 633 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon66%(92 flights)
  • Tue72%(90 flights)
  • Wed77%(95 flights)
  • Thu62%(86 flights)
  • Fri70%(76 flights)
  • Sat76%(87 flights)
  • Sun67%(93 flights)
On-time by departure window
  • 6–9 AM63%(48 flights)
  • 9 AM–12 PM—(6 flights)
  • 12–3 PM72%(244 flights)
  • 3–6 PM69%(276 flights)
  • 6–9 PM71%(45 flights)
On-time trend by month
64%
May

Jun 58% → May 64% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202558%52
July 202552%54
August 202559%58
September 202575%63
October 202582%82
November 202572%57
December 202569%78
January 202673%41
February 202687%31
March 202679%33
April 202671%59
May 202664%11
Departures on time
76%
Diverted
0.8%
Flights flown
619
Months covered
12

Keep nerding

Based on 633 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.