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Flight Reliability

UA 2315 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2315 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

71%
Arrive within 15 minutes
9 min
Average arrival delay
0.9%
Cancelled
7 min early
Median arrival delay

Based on 339 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon69%(45 flights)
  • Tue72%(46 flights)
  • Wed64%(45 flights)
  • Thu77%(52 flights)
  • Fri69%(55 flights)
  • Sat77%(39 flights)
  • Sun69%(52 flights)
On-time by departure window
  • 6–9 AM—(1 flights)
  • 12–3 PM71%(21 flights)
  • 3–6 PM67%(73 flights)
  • 6–9 PM74%(200 flights)
  • 9 PM–12 AM64%(39 flights)
On-time trend by month
68%
May

Jun 68% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202568%28
July 202525%12
August 202576%21
September 202583%30
October 202561%31
November 202548%29
December 202586%28
January 202690%30
February 202676%25
March 202680%45
April 202658%24
May 202668%31
Departures on time
75%
Diverted
0.6%
Flights flown
334
Months covered
12

Keep nerding

Based on 339 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.