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Flight Reliability

UA 2179 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2179 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

67%
Arrive within 15 minutes
20 min
Average arrival delay
0.9%
Cancelled
1 min
Median arrival delay

Based on 891 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon68%(123 flights)
  • Tue73%(130 flights)
  • Wed62%(122 flights)
  • Thu66%(125 flights)
  • Fri66%(128 flights)
  • Sat68%(124 flights)
  • Sun63%(130 flights)
On-time by departure window
  • 12–3 PM77%(292 flights)
  • 3–6 PM—(6 flights)
  • 6–9 PM51%(335 flights)
  • 9 PM–12 AM75%(249 flights)
On-time trend by month
42%
May

Jun 67% → May 42% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%60
July 202555%60
August 202579%75
September 202577%90
October 202584%43
November 202559%87
December 202556%68
January 202673%85
February 202669%84
March 202669%83
April 202667%88
May 202642%59
Departures on time
71%
Diverted
0.1%
Flights flown
882
Months covered
12

Keep nerding

Based on 891 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.