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WanderNerd

Flight Reliability

UA 5838 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5838 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

73%
Arrive within 15 minutes
24 min
Average arrival delay
4.3%
Cancelled
6 min early
Median arrival delay

Based on 233 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon78%(32 flights)
  • Tue79%(33 flights)
  • Wed66%(32 flights)
  • Thu72%(32 flights)
  • Fri66%(32 flights)
  • Sat79%(29 flights)
  • Sun70%(33 flights)
On-time by departure window
  • 12–3 PM67%(36 flights)
  • 3–6 PM75%(52 flights)
  • 6–9 PM73%(129 flights)
  • 9 PM–12 AM(6 flights)
On-time trend by month
82%
Feb

Jun 80% → Feb 82% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%30
July 202583%30
August 202571%31
September 202579%24
November 202583%23
December 202546%28
January 202654%28
February 202682%11
Departures on time
75%
Diverted
0%
Flights flown
223
Months covered
11

Based on 233 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.