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Flight Reliability

UA 4773 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 4773 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
11 min
Average arrival delay
2.8%
Cancelled
2 min early
Median arrival delay

Based on 359 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(50 flights)
  • Tue77%(51 flights)
  • Wed80%(50 flights)
  • Thu84%(50 flights)
  • Fri80%(50 flights)
  • Sat78%(49 flights)
  • Sun78%(49 flights)
On-time by departure window
  • 3–6 AM—(1 flights)
  • 6–9 AM81%(85 flights)
  • 9 AM–12 PM86%(21 flights)
  • 12–3 PM82%(68 flights)
  • 3–6 PM86%(21 flights)
  • 6–9 PM73%(153 flights)
On-time trend by month
85%
May

Jun 77% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%26
July 202574%31
August 202594%31
September 202587%30
October 202574%31
November 202596%28
December 202558%31
January 202664%28
February 202671%28
March 202679%29
April 202683%29
May 202685%27
Departures on time
81%
Diverted
0%
Flights flown
349
Months covered
12

Keep nerding

Based on 359 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.