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WanderNerd

Flight Reliability

UA 5319 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5319 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

67%
Arrive within 15 minutes
18 min
Average arrival delay
0.5%
Cancelled
1 min early
Median arrival delay

Based on 209 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon76%(33 flights)
  • Tue70%(33 flights)
  • Wed63%(32 flights)
  • Thu61%(28 flights)
  • Fri79%(33 flights)
  • Sat64%(25 flights)
  • Sun50%(24 flights)
On-time by departure window
  • 3–6 AM84%(25 flights)
  • 6–9 AM48%(21 flights)
  • 9 AM–12 PM(8 flights)
  • 12–3 PM58%(31 flights)
  • 3–6 PM82%(50 flights)
  • 6–9 PM56%(48 flights)
  • 9 PM–12 AM68%(25 flights)
On-time trend by month
54%
May

Jun 70% → May 54% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%27
July 202582%22
August 202555%31
February 202658%19
March 202680%30
April 202663%30
May 202654%28
Departures on time
73%
Diverted
0%
Flights flown
208
Months covered
10

Based on 209 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.