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Flight Reliability

UA 2438 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2438 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

89%
Arrive within 15 minutes
1 min early
Average arrival delay
0.6%
Cancelled
10 min early
Median arrival delay

Based on 358 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon92%(50 flights)
  • Tue85%(48 flights)
  • Wed88%(49 flights)
  • Thu94%(52 flights)
  • Fri90%(51 flights)
  • Sat90%(52 flights)
  • Sun85%(52 flights)
On-time by departure window
  • 3–6 AM91%(35 flights)
  • 6–9 AM94%(234 flights)
  • 9 AM–12 PM84%(25 flights)
  • 12–3 PM86%(21 flights)
  • 3–6 PM77%(13 flights)
  • 6–9 PM56%(25 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
79%
May

Jun 83% → May 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%30
July 202593%30
August 2025100%30
September 2025100%30
October 202587%31
November 202593%30
December 202594%31
January 202690%30
February 202689%27
March 202665%31
April 202697%30
May 202679%24
Departures on time
90%
Diverted
0.6%
Flights flown
354
Months covered
12

Keep nerding

Based on 358 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.