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WanderNerd

Flight Reliability

UA 5813 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5813 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

84%
Arrive within 15 minutes
1 min early
Average arrival delay
2.1%
Cancelled
15 min early
Median arrival delay

Based on 191 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon72%(29 flights)
  • Tue96%(22 flights)
  • Wed93%(27 flights)
  • Thu84%(31 flights)
  • Fri80%(30 flights)
  • Sat83%(18 flights)
  • Sun86%(29 flights)
On-time by departure window
  • 3–6 AM(1 flights)
  • 9 AM–12 PM90%(163 flights)
  • 12–3 PM(8 flights)
  • 6–9 PM43%(14 flights)
On-time trend by month
42%
Mar

Jun 90% → Mar 42% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 202597%29
August 202596%28
September 2025100%26
October 2025100%20
January 202659%22
March 202642%12
Departures on time
85%
Diverted
0.5%
Flights flown
186
Months covered
11

Based on 191 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.