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Flight Reliability

UA 1335 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1335 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

72%
Arrive within 15 minutes
18 min
Average arrival delay
1.2%
Cancelled
0 min
Median arrival delay

Based on 507 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(75 flights)
  • Tue80%(74 flights)
  • Wed71%(68 flights)
  • Thu79%(75 flights)
  • Fri61%(74 flights)
  • Sat78%(63 flights)
  • Sun59%(70 flights)
On-time by departure window
  • 9 AM–12 PM85%(109 flights)
  • 12–3 PM73%(119 flights)
  • 6–9 PM66%(269 flights)
  • 9 PM–12 AM—(2 flights)
On-time trend by month
88%
May

Jun 63% → May 88% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202563%59
July 202561%57
August 202558%45
September 202580%30
October 202581%53
November 202563%16
December 202562%29
January 202677%31
February 202682%27
March 202670%53
April 202677%57
May 202688%42
Departures on time
76%
Diverted
0.4%
Flights flown
499
Months covered
12

Keep nerding

Based on 507 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.