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Flight Reliability

UA 1729 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1729 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

76%
Arrive within 15 minutes
11 min
Average arrival delay
0.9%
Cancelled
4 min early
Median arrival delay

Based on 559 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon80%(80 flights)
  • Tue77%(73 flights)
  • Wed74%(78 flights)
  • Thu79%(80 flights)
  • Fri70%(80 flights)
  • Sat69%(77 flights)
  • Sun82%(81 flights)
On-time by departure window
  • 6–9 AM92%(39 flights)
  • 9 AM–12 PM—(3 flights)
  • 12–3 PM84%(73 flights)
  • 3–6 PM64%(239 flights)
  • 6–9 PM84%(195 flights)
On-time trend by month
75%
May

Jun 71% → May 75% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202571%34
July 202552%27
August 202558%31
September 202567%36
October 202574%62
November 202581%58
December 202576%45
January 202691%33
February 202680%45
March 202677%61
April 202690%52
May 202675%65
Departures on time
80%
Diverted
0.9%
Flights flown
549
Months covered
12

Keep nerding

Based on 559 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.