Skip to content
WanderNerd
Check a flight

Flight Reliability

UA 4384 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 4384 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

78%
Arrive within 15 minutes
12 min
Average arrival delay
4.9%
Cancelled
7 min early
Median arrival delay

Based on 345 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(46 flights)
  • Tue78%(46 flights)
  • Wed82%(50 flights)
  • Thu82%(45 flights)
  • Fri68%(47 flights)
  • Sat89%(46 flights)
  • Sun74%(46 flights)
On-time by departure window
  • 3–6 AM—(2 flights)
  • 6–9 AM88%(186 flights)
  • 9 AM–12 PM77%(77 flights)
  • 12–3 PM46%(48 flights)
  • 3–6 PM69%(13 flights)
On-time trend by month
76%
May

Jun 100% → May 76% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%13
July 202569%29
August 202587%31
September 2025100%30
October 202580%30
November 202552%25
December 202563%30
January 202675%28
February 202685%26
March 202686%28
April 202674%27
May 202676%29
Departures on time
82%
Diverted
0.6%
Flights flown
326
Months covered
12

Keep nerding

Based on 345 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.