San Diego International (SAN) Delays and On-Time Departures
San Diego, CA · ranked 296th of 333 airports for on-time departures
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, San Diego (SAN) had 100,196 scheduled departures and 74.4% of them left on time (US average 77.4%).
That ranks 296th of 333 US airports tracked on this site, with 1.2% of departures cancelled.
Delta Air Lines was the most punctual airline here, with 86.9% of departures on time.
January has been the best month (82% on time) and Friday the weakest day of the week (71%).
Best time of day to fly out of San Diego (SAN)
On-time departure % by scheduled departure hour (local time), last 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 2am–3am | Limited data | 1 | |
| 6am–7am | 94.2% | 1.0% | 17,700 |
| 7am–8am | 90.3% | 1.0% | 12,772 |
| 8am–9am | 85.0% | 0.9% | 16,757 |
| 9am–10am | 81.0% | 1.0% | 11,843 |
| 10am–11am | 80.4% | 0.6% | 13,982 |
| 11am–12pm | 77.7% | 0.8% | 11,949 |
| 12pm–1pm | 72.4% | 0.7% | 13,111 |
| 1pm–2pm | 68.3% | 0.9% | 13,383 |
| 2pm–3pm | 70.2% | 0.8% | 10,125 |
| 3pm–4pm | 70.4% | 1.1% | 9,202 |
| 4pm–5pm | 67.9% | 1.0% | 10,231 |
| 5pm–6pm | 69.3% | 1.1% | 10,568 |
| 6pm–7pm | 65.8% | 1.1% | 8,799 |
| 7pm–8pm | 65.9% | 1.2% | 9,245 |
| 8pm–9pm | 66.2% | 2.2% | 9,477 |
| 9pm–10pm | 70.0% | 2.7% | 9,508 |
| 10pm–11pm | 84.5% | 1.9% | 7,905 |
Airlines at SAN 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 |
|---|---|---|---|---|
| Delta Air Lines | 86.9% | 86.7% | 1.1% | 9,564 |
| United Airlines | 84.1% | 80.7% | 0.7% | 10,567 |
| Spirit Airlines | 81.7% | 83.7% | 1.5% | 261 |
| American Airlines | 78.7% | 80.2% | 1.8% | 9,359 |
| SkyWest Airlines | 78.5% | 79.2% | 1.9% | 14,881 |
| Alaska Airlines | 77.1% | 79.0% | 1.4% | 13,044 |
| JetBlue | 76.9% | 80.5% | 2.7% | 1,644 |
| Frontier Airlines | 71.2% | 72.3% | 1.9% | 2,184 |
| Southwest Airlines | 65.1% | 72.5% | 0.9% | 38,266 |
| Hawaiian Airlines | 63.6% | 64.5% | 1.7% | 403 |
| Allegiant Air | Limited data | 23 | ||
80%+ good 70–79.9% fair <70% poor
Best day to fly out of SAN
On-time departures by day, 24 months.
Best month to fly out of SAN
On-time departures by month, 24 months.
Holiday travel at San Diego (SAN)
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) | 76.3% | -2.6 pts | 0.7% | 3,742 |
| Christmas & New Year (Dec 20 - Jan 3) | 59.6% | -19.3 pts | 3.2% | 8,039 |
| Summer peak (Jun 15 - Aug 15) | 70.8% | -8.1 pts | 1.2% | 35,979 |
| All other days | 78.9% | — | 1.0% | 148,798 |
Monthly on-time departure trend at SAN
On-time departure % each month, with the 12-month US average for reference.
Routes from San Diego (SAN)
Every route from SAN with its own page, by number of flights (last 12 months, on-time arrivals).