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Flight Reliability

UA 2604 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 2604 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

85%
Arrive within 15 minutes
8 min early
Average arrival delay
1.1%
Cancelled
16 min early
Median arrival delay

Based on 89 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon94%(16 flights)
  • Tue(6 flights)
  • Wed(7 flights)
  • Thu87%(15 flights)
  • Fri87%(15 flights)
  • Sat86%(14 flights)
  • Sun80%(15 flights)
On-time by departure window
  • 9 AM–12 PM92%(24 flights)
  • 12–3 PM(5 flights)
  • 3–6 PM81%(58 flights)
  • 6–9 PM(1 flights)
On-time trend by month
80%
May

Jan 100% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
January 2026100%17
February 202675%24
April 202686%21
May 202680%20
Departures on time
86%
Diverted
0%
Flights flown
88
Months covered
6

Based on 89 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.