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Flight Reliability

UA 1309 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1309 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

93%
Arrive within 15 minutes
5 min early
Average arrival delay
1.2%
Cancelled
12 min early
Median arrival delay

Based on 431 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon90%(60 flights)
  • Tue95%(61 flights)
  • Wed97%(58 flights)
  • Thu90%(60 flights)
  • Fri94%(63 flights)
  • Sat89%(62 flights)
  • Sun94%(62 flights)
On-time by departure window
  • 6–9 AM94%(331 flights)
  • 9 AM–12 PM87%(45 flights)
  • 12–3 PM86%(50 flights)
On-time trend by month
97%
May

Jun 97% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%30
July 202587%62
August 202594%48
September 202597%30
October 202597%31
November 202593%30
December 202590%31
January 202693%29
February 202692%25
March 202686%49
April 202697%30
May 202697%31
Departures on time
93%
Diverted
0%
Flights flown
426
Months covered
12

Keep nerding

Based on 431 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.