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Flight Reliability

UA 4783 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 4783 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

79%
Arrive within 15 minutes
7 min
Average arrival delay
1.2%
Cancelled
4 min early
Median arrival delay

Based on 347 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon69%(52 flights)
  • Tue76%(46 flights)
  • Wed89%(46 flights)
  • Thu80%(51 flights)
  • Fri77%(51 flights)
  • Sat85%(46 flights)
  • Sun80%(51 flights)
On-time by departure window
  • 3–6 AM94%(18 flights)
  • 6–9 AM81%(96 flights)
  • 12–3 PM85%(46 flights)
  • 3–6 PM75%(183 flights)
On-time trend by month
97%
May

Jun 90% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 202580%30
August 202581%31
September 202593%30
October 202587%31
November 202574%27
December 202561%31
January 202650%18
February 202687%23
March 202665%31
April 202677%30
May 202697%31
Departures on time
85%
Diverted
0%
Flights flown
343
Months covered
12

Keep nerding

Based on 347 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.