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Flight Reliability

UA 5318 · United Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and UA 5318 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

75%
Arrive within 15 minutes
18 min
Average arrival delay
3.1%
Cancelled
3 min early
Median arrival delay

Based on 227 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon75%(28 flights)
  • Tue79%(29 flights)
  • Wed63%(30 flights)
  • Thu72%(32 flights)
  • Fri81%(31 flights)
  • Sat82%(38 flights)
  • Sun69%(32 flights)
On-time by departure window
  • 6–9 AM79%(65 flights)
  • 9 AM–12 PM82%(88 flights)
  • 12–3 PM79%(14 flights)
  • 3–6 PM(5 flights)
  • 6–9 PM52%(48 flights)
On-time trend by month
85%
May

Jul 41% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
July 202541%27
August 202576%29
September 202579%29
October 202576%25
March 202685%26
April 202670%30
May 202685%40
Departures on time
78%
Diverted
0%
Flights flown
220
Months covered
10

Based on 227 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.