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Flight Reliability

UA 5664 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5664 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

84%
Arrive within 15 minutes
7 min
Average arrival delay
0.6%
Cancelled
9 min early
Median arrival delay

Based on 357 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(50 flights)
  • Tue84%(51 flights)
  • Wed94%(51 flights)
  • Thu84%(50 flights)
  • Fri69%(51 flights)
  • Sat94%(51 flights)
  • Sun88%(49 flights)
On-time by departure window
  • 9 AM–12 PM84%(31 flights)
  • 12–3 PM81%(95 flights)
  • 3–6 PM83%(190 flights)
  • 9 PM–12 AM95%(37 flights)
On-time trend by month
85%
May

Jun 83% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%30
July 202593%30
August 202594%31
September 202590%30
October 202577%31
November 202579%29
December 202564%28
January 202687%31
February 202696%28
March 202672%29
April 202679%29
May 202685%27
Departures on time
87%
Diverted
0.6%
Flights flown
353
Months covered
12

Keep nerding

Based on 357 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.