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WanderNerd

Flight Reliability

UA 4608 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 4608 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

69%
Arrive within 15 minutes
29 min
Average arrival delay
3.7%
Cancelled
1 min
Median arrival delay

Based on 324 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon69%(49 flights)
  • Tue73%(37 flights)
  • Wed80%(39 flights)
  • Thu64%(50 flights)
  • Fri61%(51 flights)
  • Sat74%(35 flights)
  • Sun69%(51 flights)
On-time by departure window
  • 6–9 AM80%(73 flights)
  • 9 AM–12 PM68%(91 flights)
  • 6–9 PM65%(148 flights)
On-time trend by month
69%
May

Jul 60% → May 69% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
July 202560%15
August 202545%20
September 202585%26
October 202570%27
November 202576%25
December 202550%26
January 202657%23
February 202682%22
March 202677%52
April 202672%58
May 202669%13
Departures on time
74%
Diverted
0%
Flights flown
312
Months covered
12

Based on 324 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.