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Flight Reliability

UA 4386 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 4386 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

60%
Arrive within 15 minutes
39 min
Average arrival delay
7.6%
Cancelled
0 min
Median arrival delay

Based on 341 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon61%(44 flights)
  • Tue70%(46 flights)
  • Wed53%(45 flights)
  • Thu50%(46 flights)
  • Fri60%(48 flights)
  • Sat61%(44 flights)
  • Sun67%(42 flights)
On-time by departure window
  • 6–9 AM—(3 flights)
  • 9 AM–12 PM—(9 flights)
  • 12–3 PM—(5 flights)
  • 3–6 PM—(2 flights)
  • 6–9 PM61%(296 flights)
On-time trend by month
67%
May

Jun 30% → May 67% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202530%10
July 202542%24
August 202569%29
September 202576%29
October 202563%30
November 202529%24
December 202545%29
January 202671%28
February 202656%25
March 202670%30
April 202678%27
May 202667%30
Departures on time
61%
Diverted
0%
Flights flown
315
Months covered
12

Keep nerding

Based on 341 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.