Stockton Metro (SCK) Delays and On-Time Departures
Stockton, CA · ranked 328th of 333 airports for on-time departures
Data through July 2026 · Last updated October 18, 2026
67.6% of the 526 flights scheduled to depart Stockton (SCK) in the last 12 months left on time, 9.8 points below the US average of 77.4%.
That ranks 328th of 333 US airports tracked on this site, with 0.2% of departures cancelled.
Over 24 months, Tuesday was the most reliable day (83% on time) and September the worst month (56%).
Best time of day to fly out of Stockton (SCK)
On-time departure % by scheduled departure hour (local time), last 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 74.3% | 0.0% | 105 |
| 9am–10am | 64.5% | 0.0% | 31 |
| 10am–11am | 86.7% | 0.0% | 30 |
| 11am–12pm | Limited data | 14 | |
| 12pm–1pm | 62.2% | 0.0% | 45 |
| 1pm–2pm | Limited data | 28 | |
| 2pm–3pm | 56.2% | 3.6% | 83 |
| 3pm–4pm | 67.1% | 0.0% | 82 |
| 4pm–5pm | 70.1% | 0.0% | 204 |
| 5pm–6pm | 55.8% | 0.0% | 52 |
| 6pm–7pm | 68.2% | 0.0% | 44 |
| 7pm–8pm | Limited data | 11 | |
| 8pm–9pm | Limited data | 8 | |
| 9pm–10pm | 56.6% | 1.4% | 138 |
| 10pm–11pm | 68.4% | 1.7% | 177 |
Airlines at SCK ranked by on-time departures
Last 12 months. Airlines with fewer than 30 departures are marked “limited data”.
| Airline | On-time departures | On-time arrivals | Cancelled | Departures |
|---|---|---|---|---|
| Allegiant Air | 67.6% | 67.9% | 0.2% | 526 |
80%+ good 70–79.9% fair <70% poor
Best day to fly out of SCK
On-time departures by day, 24 months.
Best month to fly out of SCK
On-time departures by month, 24 months.
Holiday travel at Stockton (SCK)
On-time departures during holiday periods compared with all other days, last 24 months.
| Period | On-time departures | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 73.3% | +7.5 pts | 0.0% | 30 |
| Christmas & New Year (Dec 20 - Jan 3) | 59.4% | -6.4 pts | 0.0% | 69 |
| Summer peak (Jun 15 - Aug 15) | 69.3% | +3.5 pts | 1.4% | 208 |
| All other days | 65.8% | — | 0.7% | 745 |
Monthly on-time departure trend at SCK
On-time departure % each month, with the 12-month US average for reference.
Routes from Stockton (SCK)
Every route from SCK with its own page, by number of flights (last 12 months, on-time arrivals).
| To | On time | Cancelled | Flights |
|---|---|---|---|
| SCK → Las Vegas (LAS) | 67.2% | 0.2% | 398 |