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Flight Reliability

UA 1909 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1909 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

77%
Arrive within 15 minutes
9 min
Average arrival delay
1.2%
Cancelled
6 min early
Median arrival delay

Based on 507 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(73 flights)
  • Tue80%(71 flights)
  • Wed89%(73 flights)
  • Thu73%(73 flights)
  • Fri78%(74 flights)
  • Sat68%(59 flights)
  • Sun76%(76 flights)
On-time by departure window
  • 6–9 AM80%(124 flights)
  • 9 AM–12 PM78%(203 flights)
  • 12–3 PM79%(110 flights)
  • 3–6 PM55%(29 flights)
  • 6–9 PM79%(33 flights)
On-time trend by month
89%
May

Jun 74% → May 89% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202574%34
July 202569%62
August 202577%57
September 202593%53
October 202577%31
November 202577%26
December 202582%51
January 202675%32
February 202689%27
March 202661%49
April 202674%50
May 202689%27
Departures on time
84%
Diverted
0.4%
Flights flown
499
Months covered
12

Keep nerding

Based on 507 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.