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Flight Reliability

UA 1571 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1571 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

86%
Arrive within 15 minutes
0 min
Average arrival delay
0.6%
Cancelled
10 min early
Median arrival delay

Based on 717 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon91%(110 flights)
  • Tue89%(103 flights)
  • Wed84%(90 flights)
  • Thu89%(98 flights)
  • Fri83%(105 flights)
  • Sat88%(107 flights)
  • Sun80%(94 flights)
On-time by departure window
  • 6–9 AM96%(135 flights)
  • 9 AM–12 PM89%(194 flights)
  • 12–3 PM92%(52 flights)
  • 3–6 PM80%(326 flights)
On-time trend by month
80%
May

Jun 85% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202585%53
July 202574%80
August 202576%87
September 202597%38
October 202595%65
November 202592%83
December 202591%33
January 202695%83
February 202684%49
March 202688%32
April 202689%54
May 202680%50
Departures on time
88%
Diverted
0.8%
Flights flown
707
Months covered
12

Keep nerding

Based on 717 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.