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Flight Reliability

UA 3425 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 3425 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
3 min early
Average arrival delay
2.0%
Cancelled
12 min early
Median arrival delay

Based on 297 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon86%(43 flights)
  • Tue83%(42 flights)
  • Wed83%(41 flights)
  • Thu87%(45 flights)
  • Fri86%(42 flights)
  • Sat87%(38 flights)
  • Sun82%(39 flights)
On-time by departure window
  • 6–9 AM91%(63 flights)
  • 9 AM–12 PM87%(54 flights)
  • 12–3 PM85%(59 flights)
  • 3–6 PM83%(72 flights)
  • 6–9 PM76%(42 flights)
On-time trend by month
94%
May

Aug 74% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202574%31
September 202593%30
October 202596%24
November 202557%21
December 202577%30
January 202690%19
February 202696%22
March 202690%31
April 202677%31
May 202694%50
Departures on time
88%
Diverted
0.3%
Flights flown
290
Months covered
11

Keep nerding

Based on 297 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.