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Flight Reliability

UA 5219 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5219 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

70%
Arrive within 15 minutes
36 min
Average arrival delay
4.0%
Cancelled
1 min
Median arrival delay

Based on 350 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon84%(43 flights)
  • Tue66%(47 flights)
  • Wed73%(52 flights)
  • Thu59%(49 flights)
  • Fri75%(47 flights)
  • Sat79%(47 flights)
  • Sun58%(50 flights)
On-time by departure window
  • 6–9 AM—(8 flights)
  • 9 AM–12 PM93%(71 flights)
  • 12–3 PM—(3 flights)
  • 6–9 PM63%(253 flights)
On-time trend by month
74%
May

Jun 48% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202548%25
July 202542%24
August 202566%29
September 202590%30
October 202574%31
November 2025100%29
December 202587%31
January 202662%29
February 202679%28
March 202650%24
April 202657%28
May 202674%27
Departures on time
73%
Diverted
0.3%
Flights flown
335
Months covered
12

Keep nerding

Based on 350 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.