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Flight Reliability

UA 2255 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2255 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
2 min early
Average arrival delay
0.5%
Cancelled
7 min early
Median arrival delay

Based on 429 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon92%(60 flights)
  • Tue90%(61 flights)
  • Wed83%(60 flights)
  • Thu85%(61 flights)
  • Fri82%(60 flights)
  • Sat84%(61 flights)
  • Sun86%(63 flights)
On-time by departure window
  • 6–9 AM83%(163 flights)
  • 9 AM–12 PM88%(263 flights)
On-time trend by month
92%
May

Jun 80% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%30
July 202587%31
August 202590%31
September 202593%29
October 202594%31
November 202583%30
December 202581%31
January 202687%30
February 202675%28
March 202682%34
April 202683%59
May 202692%62
Departures on time
88%
Diverted
0.2%
Flights flown
426
Months covered
12

Keep nerding

Based on 429 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.