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Flight Reliability

UA 3489 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 3489 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

84%
Arrive within 15 minutes
2 min
Average arrival delay
3.2%
Cancelled
10 min early
Median arrival delay

Based on 312 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon86%(43 flights)
  • Tue90%(41 flights)
  • Wed89%(46 flights)
  • Thu87%(45 flights)
  • Fri81%(41 flights)
  • Sat77%(43 flights)
  • Sun79%(43 flights)
On-time by departure window
  • 6–9 AM86%(90 flights)
  • 9 AM–12 PM87%(37 flights)
  • 12–3 PM91%(69 flights)
  • 3–6 PM75%(47 flights)
  • 6–9 PM83%(42 flights)
  • 9 PM–12 AM71%(17 flights)
On-time trend by month
97%
May

Jun 71% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202571%24
July 202597%30
August 202584%31
September 202586%29
October 202592%25
December 202571%24
January 202676%29
February 202683%35
March 202673%15
April 202686%29
May 202697%31
Departures on time
86%
Diverted
0%
Flights flown
302
Months covered
11

Keep nerding

Based on 312 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.