Flight Reliability
UA 5961 · United Airlines
Sacramento → San Francisco (SMF–SFO)
32
Bring Snacks
WanderNerd Reliability Score
- 47%
- Arrive within 15 minutes
- 29 min
- Average arrival delay
- 3.3%
- Cancelled
- 18 min
- Median arrival delay
Based on 336 historical flights. Data through May 2026.
What the data says
Mondays have been rough.
UA 5961 arrived on time 68% of the time on Saturdays and just 30% on Mondays. That gap is worth planning around.
Well behind the SMF–SFO route.
UA 5961 arrived on time 47% of the time, versus 68% across the SMF–SFO route.
Well behind the United Airlines network.
UA 5961 arrived on time 47% of the time, versus 79% across the United Airlines network.
Keep a backup plan handy.
UA 5961 was cancelled 3.3% of the time. Typical for U.S. flights is around 1–2%.
The breakdown
- Mon30%(50 flights)
- Tue66%(41 flights)
- Wed49%(49 flights)
- Thu46%(50 flights)
- Fri35%(48 flights)
- Sat68%(38 flights)
- Sun43%(49 flights)
35%
May
Jun 53% → May 35% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 53% | 30 |
| July 2025 | 48% | 29 |
| August 2025 | 35% | 26 |
| September 2025 | 44% | 23 |
| October 2025 | 39% | 31 |
| November 2025 | 33% | 24 |
| December 2025 | 56% | 27 |
| January 2026 | 82% | 28 |
| February 2026 | 48% | 27 |
| March 2026 | 62% | 21 |
| April 2026 | 33% | 30 |
| May 2026 | 35% | 29 |
- Departures on time
- 64%
- Diverted
- 0%
- Flights flown
- 325
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 336 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.