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Flight Reliability

UA 5227 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5227 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

73%
Arrive within 15 minutes
12 min
Average arrival delay
3.5%
Cancelled
1 min early
Median arrival delay

Based on 339 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(48 flights)
  • Tue83%(47 flights)
  • Wed77%(47 flights)
  • Thu81%(47 flights)
  • Fri68%(47 flights)
  • Sat70%(46 flights)
  • Sun64%(45 flights)
On-time by departure window
  • 12–3 PM61%(79 flights)
  • 3–6 PM66%(58 flights)
  • 6–9 PM81%(190 flights)
On-time trend by month
61%
May

Jun 83% → May 61% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%30
July 202542%31
August 202565%23
September 202568%28
October 202561%31
November 202595%21
December 202567%15
January 202684%31
February 202685%27
March 202686%29
April 202687%30
May 202661%31
Departures on time
78%
Diverted
0%
Flights flown
327
Months covered
12

Keep nerding

Based on 339 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.