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Flight Reliability

UA 2355 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2355 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

85%
Arrive within 15 minutes
2 min
Average arrival delay
1.8%
Cancelled
10 min early
Median arrival delay

Based on 328 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon94%(49 flights)
  • Tue96%(45 flights)
  • Wed84%(50 flights)
  • Thu85%(53 flights)
  • Fri80%(51 flights)
  • Sat78%(23 flights)
  • Sun77%(51 flights)
On-time by departure window
  • 6–9 AM92%(174 flights)
  • 9 AM–12 PM88%(65 flights)
  • 12–3 PM60%(15 flights)
  • 3–6 PM75%(51 flights)
  • 9 PM–12 AM59%(17 flights)
On-time trend by month
93%
May

Jun 60% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%30
July 202583%30
August 202574%23
September 202591%23
October 202594%31
November 202593%30
December 202575%28
January 202680%25
February 202691%21
March 202693%27
April 202696%26
May 202693%28
Departures on time
87%
Diverted
0%
Flights flown
322
Months covered
12

Keep nerding

Based on 328 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.