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Flight Reliability

UA 4394 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 4394 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

67%
Arrive within 15 minutes
29 min
Average arrival delay
2.5%
Cancelled
1 min
Median arrival delay

Based on 364 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon70%(50 flights)
  • Tue69%(52 flights)
  • Wed72%(50 flights)
  • Thu54%(50 flights)
  • Fri58%(48 flights)
  • Sat71%(51 flights)
  • Sun71%(51 flights)
On-time by departure window
  • 6–9 AM80%(79 flights)
  • 9 AM–12 PM42%(52 flights)
  • 12–3 PM71%(21 flights)
  • 3–6 PM66%(159 flights)
  • 6–9 PM64%(25 flights)
  • 9 PM–12 AM81%(16 flights)
On-time trend by month
71%
May

Jun 60% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%30
July 202541%29
August 202555%31
September 202555%29
October 202567%30
November 202597%29
December 202569%29
January 202666%29
February 202679%28
March 202666%29
April 202675%28
May 202671%31
Departures on time
73%
Diverted
0.8%
Flights flown
352
Months covered
12

Keep nerding

Based on 364 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.