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Flight Reliability

UA 2499 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2499 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

69%
Arrive within 15 minutes
21 min
Average arrival delay
0.3%
Cancelled
4 min early
Median arrival delay

Based on 398 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon63%(57 flights)
  • Tue77%(57 flights)
  • Wed70%(56 flights)
  • Thu71%(58 flights)
  • Fri71%(58 flights)
  • Sat61%(49 flights)
  • Sun70%(60 flights)
On-time by departure window
  • 6–9 AM85%(48 flights)
  • 9 AM–12 PM68%(65 flights)
  • 12–3 PM72%(90 flights)
  • 3–6 PM—(4 flights)
  • 6–9 PM63%(188 flights)
On-time trend by month
65%
May

Jun 67% → May 65% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%30
July 202558%31
August 202586%29
September 202573%26
October 202589%27
November 202573%30
December 202568%31
January 202661%31
February 202689%28
March 202660%58
April 202656%34
May 202665%40
Departures on time
70%
Diverted
0.5%
Flights flown
395
Months covered
12

Keep nerding

Based on 398 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.