How reliable is Sacramento International Airport?
Flights from SMF departed within 15 minutes of schedule in 83% of 330,753 flights in official BTS history — and weather is calmest in Jun. Here’s the full picture before you book.
Reliability score
on-time, cancellations & delays
Weather favorability
year-round climate
Origin-airport operations
What the departure punctuality at SMF looks like
On-time departures
across 330,753 flights
Source: BTS Airport Operations · data through 2026-09-08. Role-specific BTS departure history; advisory context, not a guarantee for any flight.
Weather by month
When the weather works for you at Sacramento
A calm-weather score (0–100) for each month from decades of airport observations — how often conditions disrupt flying, not temperature. Higher is calmer.
Calmest month
Calmest flying weather of the year · 100/100 favorability
Roughest month
Most disruptive — low visibility & fog, high winds · 73/100 favorability
The read on SMF
What the numbers say about flying through Sacramento International Airport
Across official performance history, flights from Sacramento left within 15 minutes of schedule about 83% of the time over 330,753 flights. That's a solid, better-than-average operational record. Pair it with a low cancellation rate of 0.9%, so flights here rarely vanish outright. When a departure does run late, the typical delay is around 8 minutes.
On weather, Sacramento is an unusually calm-weather airport year-round. June is the calmest stretch for flying, scoring 100 out of 100 for favorable conditions, while December is the most disruptive at 73, driven mainly by low visibility & fog and high winds. The seasonal swing is real but manageable; favor the calmer months when your dates are flexible.
None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to Sacramento, read how we weigh it all in how the Peace of Mind Score works, and brush up with how to pick a reliable flight and avoiding weather delays.
Common questions about SMF
- How reliable is Sacramento International Airport (SMF)?
- Flights from Sacramento left within 15 minutes of schedule roughly 83% of the time across 330,753 flights of official history — a solid, better-than-average operational record. The cancellation rate runs about 0.9%. It's advisory context, not a guarantee for any single flight.
- What is the best month to fly from SMF for good weather?
- June has the calmest flying weather at Sacramento International Airport. December is the most disruptive, mainly from low visibility & fog and high winds.
Peace of Mind
Where to stay in Sacramento
Hotels scored on cleanliness, location, price fairness, and trust — not just stars.
Reliability guides
Planning a trip through Sacramento?
Score real flights to and from SMF on reliability, weather, and connection safety — not just price.
Opens a partner site; we may earn a commission if you book there. It's a general fare search — nothing on it is scored.