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Flight Reliability

UA 1983 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1983 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

75%
Arrive within 15 minutes
14 min
Average arrival delay
0.4%
Cancelled
5 min early
Median arrival delay

Based on 489 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(78 flights)
  • Tue73%(55 flights)
  • Wed75%(56 flights)
  • Thu75%(77 flights)
  • Fri75%(75 flights)
  • Sat82%(65 flights)
  • Sun64%(78 flights)
On-time by departure window
  • 9 AM–12 PM—(2 flights)
  • 12–3 PM79%(327 flights)
  • 3–6 PM51%(88 flights)
  • 6–9 PM54%(13 flights)
  • 9 PM–12 AM93%(54 flights)
On-time trend by month
74%
May

Jun 81% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202581%58
July 202574%91
August 202578%59
September 202577%22
October 202568%38
November 202562%29
December 202571%41
January 202679%33
February 202683%24
March 202675%28
April 202673%30
May 202674%31
Departures on time
76%
Diverted
0.6%
Flights flown
484
Months covered
12

Keep nerding

Based on 489 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.