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Flight Reliability

UA 1718 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 1718 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

77%
Arrive within 15 minutes
10 min
Average arrival delay
1.6%
Cancelled
4 min early
Median arrival delay

Based on 383 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon82%(54 flights)
  • Tue83%(54 flights)
  • Wed76%(53 flights)
  • Thu74%(54 flights)
  • Fri72%(53 flights)
  • Sat85%(52 flights)
  • Sun66%(56 flights)
On-time by departure window
  • 6–9 AM93%(71 flights)
  • 9 AM–12 PM44%(18 flights)
  • 12–3 PM89%(35 flights)
  • 3–6 PM79%(159 flights)
  • 6–9 PM62%(93 flights)
On-time trend by month
82%
May

Jun 83% → May 82% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%30
July 202573%30
August 202582%27
September 202567%30
October 202574%31
November 202591%32
December 202567%30
January 202693%30
February 202676%25
March 202680%30
April 202647%30
May 202682%51
Departures on time
78%
Diverted
0.3%
Flights flown
376
Months covered
12

Keep nerding

Based on 383 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.