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Flight Reliability

UA 6127 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 6127 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

77%
Arrive within 15 minutes
10 min
Average arrival delay
1.5%
Cancelled
9 min early
Median arrival delay

Based on 326 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon77%(48 flights)
  • Tue83%(47 flights)
  • Wed75%(51 flights)
  • Thu80%(45 flights)
  • Fri81%(37 flights)
  • Sat76%(45 flights)
  • Sun70%(46 flights)
On-time by departure window
  • 6–9 AM95%(19 flights)
  • 9 AM–12 PM—(1 flights)
  • 12–3 PM76%(37 flights)
  • 3–6 PM51%(84 flights)
  • 6–9 PM88%(177 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
87%
May

Jun 35% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202535%29
July 202552%31
August 202568%22
September 202593%14
October 202577%26
November 202582%22
December 202587%31
January 202697%29
February 202681%26
March 202686%29
April 202690%30
May 202687%30
Departures on time
77%
Diverted
0.6%
Flights flown
319
Months covered
12

Keep nerding

Based on 326 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.