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Flight Reliability

UA 1066 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1066 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
1 min
Average arrival delay
0.7%
Cancelled
9 min early
Median arrival delay

Based on 423 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon90%(61 flights)
  • Tue93%(60 flights)
  • Wed93%(59 flights)
  • Thu85%(61 flights)
  • Fri87%(63 flights)
  • Sat76%(54 flights)
  • Sun77%(62 flights)
On-time by departure window
  • 6–9 AM92%(26 flights)
  • 9 AM–12 PM84%(38 flights)
  • 12–3 PM86%(131 flights)
  • 3–6 PM91%(55 flights)
  • 6–9 PM57%(21 flights)
  • 9 PM–12 AM88%(149 flights)
On-time trend by month
90%
May

Jun 89% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202589%52
July 202568%31
August 202587%46
September 202597%29
October 202586%21
November 202580%25
December 202565%31
January 202691%57
February 202697%37
March 202683%30
April 202693%30
May 202690%31
Departures on time
83%
Diverted
0%
Flights flown
420
Months covered
12

Keep nerding

Based on 423 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.