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WanderNerd

Flight Reliability

UA 2850 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2850 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

77%
Arrive within 15 minutes
11 min
Average arrival delay
0.7%
Cancelled
1 min early
Median arrival delay

Based on 268 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon76%(42 flights)
  • Tue87%(37 flights)
  • Wed65%(40 flights)
  • Thu84%(43 flights)
  • Fri75%(44 flights)
  • Sat75%(24 flights)
  • Sun78%(36 flights)
On-time by departure window
  • 6–9 AM91%(32 flights)
  • 12–3 PM84%(103 flights)
  • 3–6 PM73%(96 flights)
  • 6–9 PM47%(15 flights)
  • 9 PM–12 AM65%(20 flights)
On-time trend by month
53%
May

Aug 91% → May 53% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202591%11
September 202584%51
October 202589%52
November 202575%24
December 202570%23
January 202677%26
February 202682%28
May 202653%45
Departures on time
81%
Diverted
0%
Flights flown
266
Months covered
10

Based on 268 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.