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Flight Reliability

UA 279 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 279 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

78%
Arrive within 15 minutes
11 min
Average arrival delay
1.9%
Cancelled
3 min early
Median arrival delay

Based on 569 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon81%(80 flights)
  • Tue82%(78 flights)
  • Wed83%(77 flights)
  • Thu79%(81 flights)
  • Fri74%(82 flights)
  • Sat78%(76 flights)
  • Sun70%(84 flights)
On-time by departure window
  • 12–3 AM73%(11 flights)
  • 6–9 AM73%(139 flights)
  • 9 AM–12 PM82%(237 flights)
  • 12–3 PM—(1 flights)
  • 3–6 PM82%(118 flights)
  • 6–9 PM70%(50 flights)
  • 9 PM–12 AM—(2 flights)
On-time trend by month
83%
May

Jun 83% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%30
July 202529%31
August 202583%30
September 202597%30
October 202587%31
November 202582%33
December 202571%44
January 202684%57
February 202673%37
March 202668%74
April 202688%89
May 202683%72
Departures on time
80%
Diverted
0%
Flights flown
558
Months covered
12

Keep nerding

Based on 569 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.