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Flight Reliability

UA 5979 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5979 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

87%
Arrive within 15 minutes
0 min
Average arrival delay
0.9%
Cancelled
13 min early
Median arrival delay

Based on 232 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(38 flights)
  • Tue97%(29 flights)
  • Wed84%(31 flights)
  • Thu86%(35 flights)
  • Fri92%(36 flights)
  • Sat96%(25 flights)
  • Sun83%(35 flights)
On-time by departure window
  • 3–6 AM90%(145 flights)
  • 12–3 PM81%(84 flights)
On-time trend by month
79%
May

Jun 90% → May 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 202580%30
August 202587%30
September 202593%30
October 2025100%31
November 202585%27
March 202668%19
April 202682%17
May 202679%14
Departures on time
85%
Diverted
0.4%
Flights flown
229
Months covered
10

Keep nerding

Based on 232 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.