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Flight Reliability

UA 2621 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2621 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

71%
Arrive within 15 minutes
17 min
Average arrival delay
0.5%
Cancelled
1 min early
Median arrival delay

Based on 555 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(80 flights)
  • Tue81%(78 flights)
  • Wed73%(78 flights)
  • Thu70%(79 flights)
  • Fri73%(78 flights)
  • Sat61%(77 flights)
  • Sun67%(81 flights)
On-time by departure window
  • 6–9 AM93%(43 flights)
  • 12–3 PM77%(68 flights)
  • 3–6 PM46%(80 flights)
  • 6–9 PM71%(323 flights)
  • 9 PM–12 AM89%(37 flights)
On-time trend by month
57%
May

Jun 42% → May 57% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202542%57
July 202555%60
August 202576%55
September 202584%67
October 202582%87
November 202562%29
December 202571%42
January 202683%36
February 202686%28
March 202680%30
April 202677%30
May 202657%30
Departures on time
72%
Diverted
0.2%
Flights flown
551
Months covered
12

Keep nerding

Based on 555 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.