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Flight Reliability

UA 617 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 617 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

68%
Arrive within 15 minutes
24 min
Average arrival delay
1.2%
Cancelled
3 min
Median arrival delay

Based on 573 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon71%(79 flights)
  • Tue73%(82 flights)
  • Wed65%(81 flights)
  • Thu69%(81 flights)
  • Fri68%(80 flights)
  • Sat67%(75 flights)
  • Sun66%(84 flights)
On-time by departure window
  • 6–9 AM83%(24 flights)
  • 9 AM–12 PM91%(21 flights)
  • 12–3 PM69%(356 flights)
  • 6–9 PM61%(161 flights)
On-time trend by month
74%
May

Jun 71% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202571%84
July 202547%60
August 202556%59
September 202581%59
October 202572%50
November 202576%29
December 202570%30
January 202671%31
February 202675%28
March 202665%31
April 202669%32
May 202674%69
Departures on time
78%
Diverted
0.7%
Flights flown
562
Months covered
12

Keep nerding

Based on 573 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.