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Flight Reliability

UA 3505 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 3505 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
5.3%
Cancelled
14 min early
Median arrival delay

Based on 320 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(41 flights)
  • Tue80%(46 flights)
  • Wed76%(42 flights)
  • Thu89%(44 flights)
  • Fri89%(46 flights)
  • Sat84%(37 flights)
  • Sun78%(46 flights)
On-time by departure window
  • 6–9 AM95%(128 flights)
  • 9 AM–12 PM67%(12 flights)
  • 12–3 PM80%(76 flights)
  • 3–6 PM67%(79 flights)
  • 6–9 PM—(7 flights)
On-time trend by month
96%
May

Jun 85% → May 96% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202585%20
July 202548%27
August 2025100%13
September 2025100%27
October 202590%30
November 202583%23
December 202570%27
January 202692%25
February 202692%24
March 202673%30
April 202675%28
May 202696%28
Departures on time
85%
Diverted
0.3%
Flights flown
302
Months covered
12

Keep nerding

Based on 320 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.