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Flight Reliability

UA 4723 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 4723 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

81%
Arrive within 15 minutes
11 min
Average arrival delay
0.6%
Cancelled
13 min early
Median arrival delay

Based on 328 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(46 flights)
  • Tue90%(52 flights)
  • Wed83%(47 flights)
  • Thu77%(51 flights)
  • Fri79%(52 flights)
  • Sat87%(37 flights)
  • Sun81%(41 flights)
On-time by departure window
  • 6–9 AM90%(265 flights)
  • 9 AM–12 PM33%(39 flights)
  • 12–3 PM75%(12 flights)
  • 3–6 PM—(5 flights)
  • 6–9 PM—(5 flights)
On-time trend by month
41%
May

Jun 97% → May 41% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%30
July 202597%31
August 202590%29
September 202593%30
October 202587%31
November 202588%25
December 202577%31
January 202692%24
February 2026100%18
March 202671%28
April 202635%20
May 202641%29
Departures on time
85%
Diverted
0%
Flights flown
326
Months covered
12

Keep nerding

Based on 328 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.