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Flight Reliability

UA 1209 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1209 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

63%
Arrive within 15 minutes
27 min
Average arrival delay
2.4%
Cancelled
5 min
Median arrival delay

Based on 531 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon61%(76 flights)
  • Tue67%(69 flights)
  • Wed68%(72 flights)
  • Thu64%(75 flights)
  • Fri63%(84 flights)
  • Sat63%(60 flights)
  • Sun58%(80 flights)
On-time by departure window
  • 6–9 AM90%(10 flights)
  • 12–3 PM66%(91 flights)
  • 3–6 PM53%(32 flights)
  • 6–9 PM54%(160 flights)
  • 9 PM–12 AM69%(223 flights)
On-time trend by month
72%
May

Jun 68% → May 72% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202568%40
July 202563%30
August 202561%43
September 202568%40
October 202562%58
November 202565%46
December 202558%59
January 202656%18
February 202664%25
March 202647%32
April 202665%54
May 202672%71
Departures on time
69%
Diverted
0.4%
Flights flown
516
Months covered
12

Keep nerding

Based on 531 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.