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Flight Reliability

UA 1220 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1220 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
13 min
Average arrival delay
0.4%
Cancelled
4 min early
Median arrival delay

Based on 479 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(68 flights)
  • Tue71%(66 flights)
  • Wed81%(67 flights)
  • Thu71%(69 flights)
  • Fri65%(69 flights)
  • Sat81%(68 flights)
  • Sun71%(68 flights)
On-time by departure window
  • 6–9 AM95%(37 flights)
  • 9 AM–12 PM89%(36 flights)
  • 12–3 PM70%(74 flights)
  • 3–6 PM70%(328 flights)
On-time trend by month
68%
May

Jun 58% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202558%40
July 202566%89
August 202563%49
September 202590%30
October 202587%31
November 202597%30
December 202565%31
January 202681%31
February 202664%28
March 202678%55
April 202680%30
May 202668%31
Departures on time
75%
Diverted
0.4%
Flights flown
475
Months covered
12

Keep nerding

Based on 479 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.