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WanderNerd

Flight Reliability

UA 5837 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5837 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

72%
Arrive within 15 minutes
16 min
Average arrival delay
1.1%
Cancelled
0 min
Median arrival delay

Based on 353 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(52 flights)
  • Tue79%(48 flights)
  • Wed78%(49 flights)
  • Thu63%(49 flights)
  • Fri65%(51 flights)
  • Sat78%(49 flights)
  • Sun71%(51 flights)
On-time trend by month
68%
May

Jun 55% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202555%20
July 202560%30
August 202565%31
September 202579%29
October 202560%30
November 202566%29
December 202576%29
January 202674%31
February 202686%28
March 202687%31
April 202683%30
May 202668%31
Departures on time
75%
Diverted
0%
Flights flown
349
Months covered
12

Based on 353 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.