Route Reliability
Sacramento → San Francisco
SMF–SFO · 86 miles · Sacramento International Airport to San Francisco International Airport
- 68%
- Arrive within 15 minutes
- 17 min
- Average arrival delay
- 1.7%
- Cancelled
- 1,399
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 68% of the time across 1,399 flights. No comparison to make.
What the data says
Morning-you made the right choice.
SMF–SFO flights departing between 6–9 AM arrived on time 91% of the time, versus 47% between 6–9 PM.
Mondays have been rough.
SMF–SFO flights arrived on time 78% of the time on Saturdays and just 61% on Mondays. That gap is worth planning around.
Slipping a little lately.
SMF–SFO flights arrived on time 65% of the time over the last three months in the data, compared with 70% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon61%(202 flights)
- Tue76%(196 flights)
- Wed66%(204 flights)
- Thu67%(201 flights)
- Fri62%(199 flights)
- Sat78%(180 flights)
- Sun67%(193 flights)
- 3–6 AM—(4 flights)
- 6–9 AM91%(384 flights)
- 9 AM–12 PM63%(354 flights)
- 12–3 PM68%(233 flights)
- 3–6 PM67%(75 flights)
- 6–9 PM47%(325 flights)
Jun 80% → May 55% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 80% | 111 |
| July 2025 | 78% | 113 |
| August 2025 | 69% | 113 |
| September 2025 | 65% | 118 |
| October 2025 | 66% | 145 |
| November 2025 | 55% | 106 |
| December 2025 | 67% | 104 |
| January 2026 | 76% | 112 |
| February 2026 | 66% | 111 |
| March 2026 | 79% | 114 |
| April 2026 | 61% | 118 |
| May 2026 | 55% | 110 |
Keep nerding
Based on 1,399 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.