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Flight Reliability

UA 1508 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1508 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

83%
Arrive within 15 minutes
8 min
Average arrival delay
1.3%
Cancelled
7 min early
Median arrival delay

Based on 542 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon88%(81 flights)
  • Tue93%(69 flights)
  • Wed82%(78 flights)
  • Thu80%(83 flights)
  • Fri79%(85 flights)
  • Sat85%(65 flights)
  • Sun78%(74 flights)
On-time by departure window
  • 3–6 AM—(1 flights)
  • 6–9 AM93%(252 flights)
  • 12–3 PM85%(47 flights)
  • 3–6 PM65%(97 flights)
  • 6–9 PM73%(51 flights)
  • 9 PM–12 AM82%(87 flights)
On-time trend by month
57%
May

Jun 87% → May 57% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%30
July 202535%26
August 202587%52
September 202594%81
October 202589%56
November 202596%27
December 202597%31
January 202691%33
February 202689%27
March 202685%53
April 202685%58
May 202657%61
Departures on time
82%
Diverted
0%
Flights flown
535
Months covered
12

Keep nerding

Based on 542 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.