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Flight Reliability

UA 5279 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5279 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

72%
Arrive within 15 minutes
16 min
Average arrival delay
2.2%
Cancelled
2 min early
Median arrival delay

Based on 325 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon74%(42 flights)
  • Tue73%(44 flights)
  • Wed73%(51 flights)
  • Thu62%(45 flights)
  • Fri80%(45 flights)
  • Sat71%(42 flights)
  • Sun70%(47 flights)
On-time by departure window
  • 6–9 AM66%(85 flights)
  • 9 AM–12 PM79%(62 flights)
  • 12–3 PM64%(126 flights)
  • 3–6 PM93%(28 flights)
  • 6–9 PM100%(15 flights)
On-time trend by month
68%
May

Jun 73% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%30
July 202565%31
August 202576%29
September 202587%30
October 202574%31
November 202568%25
December 202558%24
January 202685%13
February 2026100%17
March 202674%27
April 202650%28
May 202668%31
Departures on time
78%
Diverted
0.6%
Flights flown
316
Months covered
12

Keep nerding

Based on 325 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.