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Flight Reliability

UA 5313 · United Airlines

ACV → San Francisco (ACV–SFO)100% of its flights flew this route. The rest (FWA–ORD) are included in these numbers.

72
Usually Fine
WanderNerd Reliability Score
75%
Arrive within 15 minutes
24 min
Average arrival delay
0.8%
Cancelled
4 min early
Median arrival delay

Based on 357 historical flights. Data through May 2026.

What the data says

The 3–6 AM departure wins.

UA 5313 departing between 3–6 AM arrived on time 90% of the time, versus 72% between 6–9 AM.

Wednesdays have been rough.

UA 5313 arrived on time 88% of the time on Saturdays and just 67% on Wednesdays. That gap is worth planning around.

Better than the ACV–SFO route average.

UA 5313 arrived on time 75% of the time, versus 68% across the ACV–SFO route.

A bit behind the United Airlines network.

UA 5313 arrived on time 75% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon72%(50 flights)
  • Tue67%(48 flights)
  • Wed67%(48 flights)
  • Thu78%(51 flights)
  • Fri83%(52 flights)
  • Sat88%(51 flights)
  • Sun72%(53 flights)
On-time by departure window
  • 3–6 AM90%(71 flights)
  • 6–9 AM72%(281 flights)
  • 9 AM–12 PM—(1 flights)
On-time trend by month
93%
May

Jun 91% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202591%22
July 202597%31
August 202560%30
September 202563%30
October 202587%31
November 202537%30
December 202553%30
January 202687%31
February 202674%27
March 202684%31
April 202680%30
May 202693%30
Departures on time
86%
Diverted
0.3%
Flights flown
353
Months covered
12

Same route, other flights

Keep nerding

Based on 357 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.