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Flight Reliability

UA 4301 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 4301 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
2 min
Average arrival delay
1.9%
Cancelled
13 min early
Median arrival delay

Based on 308 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon80%(44 flights)
  • Tue69%(45 flights)
  • Wed80%(45 flights)
  • Thu90%(38 flights)
  • Fri83%(40 flights)
  • Sat78%(50 flights)
  • Sun80%(40 flights)
On-time by departure window
  • 3–6 AM92%(13 flights)
  • 6–9 AM77%(227 flights)
  • 9 AM–12 PM86%(55 flights)
  • 12–3 PM—(4 flights)
  • 3–6 PM—(3 flights)
On-time trend by month
96%
Apr

Jun 64% → Apr 96% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202564%28
July 202574%31
August 202577%31
September 202560%30
October 202590%31
November 202593%27
December 202585%27
January 202671%28
February 202678%27
March 202691%11
April 202696%28
Departures on time
88%
Diverted
0%
Flights flown
302
Months covered
12

Keep nerding

Based on 308 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.