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Flight Reliability

UA 1435 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1435 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

83%
Arrive within 15 minutes
0 min
Average arrival delay
1.4%
Cancelled
9 min early
Median arrival delay

Based on 353 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon88%(50 flights)
  • Tue93%(45 flights)
  • Wed94%(46 flights)
  • Thu86%(51 flights)
  • Fri77%(51 flights)
  • Sat71%(52 flights)
  • Sun77%(52 flights)
On-time by departure window
  • 3–6 AM90%(79 flights)
  • 6–9 AM91%(11 flights)
  • 9 AM–12 PM84%(139 flights)
  • 12–3 PM84%(93 flights)
  • 6–9 PM56%(25 flights)
On-time trend by month
94%
May

Jun 87% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%30
July 202590%31
August 202587%31
September 202590%30
October 202565%31
November 202589%27
December 202577%31
January 202665%23
February 202678%23
March 202686%29
April 202687%30
May 202694%31
Departures on time
85%
Diverted
0.3%
Flights flown
347
Months covered
12

Keep nerding

Based on 353 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.