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WanderNerd

Flight Reliability

UA 1127 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1127 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

78%
Arrive within 15 minutes
8 min
Average arrival delay
1.6%
Cancelled
4 min early
Median arrival delay

Based on 184 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon84%(25 flights)
  • Tue71%(24 flights)
  • Wed83%(23 flights)
  • Thu75%(28 flights)
  • Fri80%(30 flights)
  • Sat83%(23 flights)
  • Sun71%(28 flights)
On-time by departure window
  • 6–9 AM71%(35 flights)
  • 9 AM–12 PM(3 flights)
  • 12–3 PM(4 flights)
  • 3–6 PM(2 flights)
  • 6–9 PM80%(120 flights)
  • 9 PM–12 AM71%(17 flights)
On-time trend by month
52%
May

Jun 90% → May 52% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 202580%30
August 202590%30
September 202575%12
October 202581%21
April 202678%23
May 202652%31
Departures on time
80%
Diverted
0%
Flights flown
181
Months covered
9

Based on 184 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.