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WanderNerd

Flight Reliability

UA 4326 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 4326 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

80%
Arrive within 15 minutes
10 min
Average arrival delay
2.2%
Cancelled
6 min early
Median arrival delay

Based on 223 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(26 flights)
  • Tue97%(29 flights)
  • Wed83%(23 flights)
  • Thu77%(31 flights)
  • Fri79%(33 flights)
  • Sat75%(44 flights)
  • Sun77%(31 flights)
On-time by departure window
  • 9 AM–12 PM80%(105 flights)
  • 12–3 PM90%(41 flights)
  • 3–6 PM71%(21 flights)
  • 6–9 PM76%(50 flights)
On-time trend by month
73%
May

Jun 72% → May 73% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202572%25
July 202577%31
August 202583%29
September 202595%21
November 202595%19
December 202582%17
March 202677%22
May 202673%26
Departures on time
82%
Diverted
0.4%
Flights flown
217
Months covered
12

Based on 223 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.