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Flight Reliability

UA 2661 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2661 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

81%
Arrive within 15 minutes
7 min
Average arrival delay
0.3%
Cancelled
6 min early
Median arrival delay

Based on 369 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(56 flights)
  • Tue87%(52 flights)
  • Wed85%(52 flights)
  • Thu81%(57 flights)
  • Fri80%(56 flights)
  • Sat77%(39 flights)
  • Sun75%(56 flights)
On-time by departure window
  • 6–9 AM97%(57 flights)
  • 9 AM–12 PM80%(276 flights)
  • 12–3 PM65%(34 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
81%
May

Jun 89% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202589%26
July 202574%27
August 202589%27
September 202587%30
October 202577%31
November 202573%30
December 202575%28
February 202661%18
March 202688%34
April 202685%60
May 202681%52
Departures on time
86%
Diverted
0%
Flights flown
368
Months covered
12

Keep nerding

Based on 369 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.