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Flight Reliability

UA 5017 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5017 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

73%
Arrive within 15 minutes
18 min
Average arrival delay
3.1%
Cancelled
4 min early
Median arrival delay

Based on 391 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(55 flights)
  • Tue77%(51 flights)
  • Wed67%(57 flights)
  • Thu82%(55 flights)
  • Fri69%(54 flights)
  • Sat77%(51 flights)
  • Sun63%(56 flights)
On-time by departure window
  • 9 AM–12 PM81%(58 flights)
  • 12–3 PM76%(103 flights)
  • 3–6 PM73%(160 flights)
  • 6–9 PM67%(27 flights)
  • 9 PM–12 AM61%(31 flights)
On-time trend by month
58%
May

Jun 70% → May 58% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%30
July 202561%31
August 202577%39
September 202570%47
October 202584%31
November 202590%30
December 202568%31
January 202684%31
February 202680%25
March 202674%27
April 202665%26
May 202658%31
Departures on time
78%
Diverted
0%
Flights flown
379
Months covered
12

Keep nerding

Based on 391 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.