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Flight Reliability

UA 1789 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1789 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

93%
Arrive within 15 minutes
10 min early
Average arrival delay
0.6%
Cancelled
15 min early
Median arrival delay

Based on 498 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon94%(86 flights)
  • Tue97%(59 flights)
  • Wed90%(50 flights)
  • Thu94%(86 flights)
  • Fri90%(87 flights)
  • Sat94%(46 flights)
  • Sun91%(81 flights)
On-time by departure window
  • 6–9 AM95%(380 flights)
  • 12–3 PM86%(111 flights)
  • 6–9 PM—(4 flights)
On-time trend by month
95%
May

Jun 95% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202595%21
July 202594%31
August 202596%24
September 202595%21
October 2025100%24
November 202593%30
December 202588%41
January 202689%47
February 202696%46
March 202690%79
April 202692%71
May 202695%60
Departures on time
93%
Diverted
0%
Flights flown
495
Months covered
12

Keep nerding

Based on 498 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.