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Flight Reliability

UA 2389 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2389 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

85%
Arrive within 15 minutes
2 min
Average arrival delay
1.8%
Cancelled
8 min early
Median arrival delay

Based on 705 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(101 flights)
  • Tue88%(97 flights)
  • Wed90%(99 flights)
  • Thu87%(103 flights)
  • Fri82%(101 flights)
  • Sat84%(85 flights)
  • Sun83%(104 flights)
On-time by departure window
  • 6–9 AM88%(328 flights)
  • 9 AM–12 PM83%(340 flights)
  • 3–6 PM73%(22 flights)
On-time trend by month
86%
May

Jun 87% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%82
July 202590%62
August 202589%62
September 202597%59
October 202574%61
November 202590%58
December 202581%47
January 202684%38
February 202686%44
March 202675%59
April 202684%56
May 202686%62
Departures on time
89%
Diverted
0.3%
Flights flown
690
Months covered
12

Keep nerding

Based on 705 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.