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Flight Reliability

UA 5611 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5611 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

75%
Arrive within 15 minutes
7 min
Average arrival delay
0.9%
Cancelled
9 min early
Median arrival delay

Based on 334 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(51 flights)
  • Tue80%(49 flights)
  • Wed78%(45 flights)
  • Thu71%(48 flights)
  • Fri79%(47 flights)
  • Sat71%(42 flights)
  • Sun73%(48 flights)
On-time by departure window
  • 3–6 AM92%(135 flights)
  • 6–9 AM—(1 flights)
  • 12–3 PM—(2 flights)
  • 3–6 PM55%(141 flights)
  • 6–9 PM84%(51 flights)
On-time trend by month
94%
May

Jun 39% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202539%28
July 202546%28
August 202557%30
September 202567%30
October 202571%31
November 202590%29
December 202580%30
January 202696%25
February 202691%23
March 202694%31
April 202690%29
May 202694%16
Departures on time
78%
Diverted
0.3%
Flights flown
330
Months covered
12

Keep nerding

Based on 334 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.