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WanderNerd

Flight Reliability

UA 5777 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5777 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

69%
Arrive within 15 minutes
29 min
Average arrival delay
2.1%
Cancelled
1 min
Median arrival delay

Based on 94 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon83%(12 flights)
  • Tue(5 flights)
  • Wed(3 flights)
  • Thu50%(14 flights)
  • Fri62%(13 flights)
  • Sat71%(31 flights)
  • Sun79%(14 flights)
On-time by departure window
  • 3–6 AM(3 flights)
  • 9 AM–12 PM71%(17 flights)
  • 6–9 PM69%(54 flights)
  • 9 PM–12 AM67%(18 flights)
On-time trend by month
82%
May

Dec 55% → May 82% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
December 202555%11
March 202670%20
April 202665%17
May 202682%22
Departures on time
76%
Diverted
0%
Flights flown
92
Months covered
11

Based on 94 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.