Skip to content
WanderNerd
Check a flight

Flight Reliability

UA 4300 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 4300 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
16 min
Average arrival delay
2.3%
Cancelled
10 min early
Median arrival delay

Based on 310 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon88%(43 flights)
  • Tue84%(43 flights)
  • Wed80%(40 flights)
  • Thu95%(41 flights)
  • Fri86%(43 flights)
  • Sat81%(48 flights)
  • Sun81%(43 flights)
On-time by departure window
  • 6–9 AM90%(20 flights)
  • 9 AM–12 PM84%(218 flights)
  • 12–3 PM90%(51 flights)
  • 3–6 PM83%(12 flights)
On-time trend by month
97%
May

Jun 66% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202566%29
July 202583%30
August 202587%31
September 202589%26
October 202592%13
November 202593%28
December 202587%30
January 202675%28
February 202679%14
March 202683%24
April 202694%17
May 202697%31
Departures on time
87%
Diverted
0.6%
Flights flown
301
Months covered
12

Keep nerding

Based on 310 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.