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Flight Reliability

UA 2388 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2388 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

70%
Arrive within 15 minutes
18 min
Average arrival delay
0.4%
Cancelled
1 min early
Median arrival delay

Based on 494 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon64%(73 flights)
  • Tue81%(70 flights)
  • Wed72%(74 flights)
  • Thu67%(69 flights)
  • Fri74%(72 flights)
  • Sat70%(59 flights)
  • Sun61%(75 flights)
On-time by departure window
  • 3–6 PM74%(221 flights)
  • 6–9 PM62%(218 flights)
  • 9 PM–12 AM85%(53 flights)
On-time trend by month
84%
May

Jun 40% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202540%52
July 202558%31
August 202576%45
September 202580%30
October 202555%31
November 202566%58
December 202563%48
January 202683%57
February 202689%36
March 202673%30
April 202677%31
May 202684%43
Departures on time
72%
Diverted
0%
Flights flown
492
Months covered
12

Keep nerding

Based on 494 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.