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Flight Reliability

UA 5796 · United Airlines

San Francisco → Sacramento (SFO–SMF)

79
Usually Fine
WanderNerd Reliability Score
83%
Arrive within 15 minutes
10 min
Average arrival delay
3.1%
Cancelled
4 min early
Median arrival delay

Based on 358 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

UA 5796 departing between 6–9 PM arrived on time 86% of the time, versus 60% between 3–6 PM.

Sunday scaries are real for this one.

UA 5796 arrived on time 89% of the time on Saturdays. On Sundays: 78%.

A bit ahead of the United Airlines network.

UA 5796 arrived on time 83% of the time, versus 79% across the United Airlines network.

Keep a backup plan handy.

UA 5796 was cancelled 3.1% of the time. Typical for U.S. flights is around 1–2%.

The breakdown

On-time by weekday
  • Mon84%(49 flights)
  • Tue82%(50 flights)
  • Wed87%(52 flights)
  • Thu82%(50 flights)
  • Fri82%(49 flights)
  • Sat89%(47 flights)
  • Sun78%(50 flights)
On-time by departure window
  • 3–6 PM60%(30 flights)
  • 6–9 PM86%(317 flights)
On-time trend by month
83%
May

Jun 87% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%30
July 202587%30
August 202584%31
September 202597%30
October 202590%31
November 202575%24
December 202567%27
January 202689%28
February 202667%27
March 202677%31
April 202693%29
May 202683%29
Departures on time
84%
Diverted
0%
Flights flown
347
Months covered
12

Same route, other flights

Keep nerding

Based on 358 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.