Best Time to Fly MSY to SAN: On-Time Stats by Hour & Airline
Louis Armstrong New Orleans International → San Diego International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 69.5% of New Orleans (MSY) to San Diego (SAN) flights arrived on time (342 scheduled flights). That is 8.1 points below the national average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (81% on time) and July the worst month (42%).
The cancellation rate was 0.0% (US average 1.8%).
MSY to SAN on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlines | 69.5% | 48 min | 0.0% | 342 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MSY to SAN
On-time arrival % by scheduled departure hour (local time), 682 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 21 | |
| 7am–8am | 92.2% | 0.0% | 52 |
| 8am–9am | Limited data | 1 | |
| 9am–10am | 85.5% | 0.0% | 55 |
| 10am–11am | 86.8% | 0.0% | 53 |
| 11am–12pm | 84.2% | 0.0% | 58 |
| 12pm–1pm | 75.0% | 3.2% | 95 |
| 1pm–2pm | 77.8% | 0.0% | 36 |
| 2pm–3pm | 82.9% | 0.0% | 35 |
| 3pm–4pm | 68.1% | 0.0% | 94 |
| 4pm–5pm | 37.1% | 0.0% | 35 |
| 5pm–6pm | Limited data | 27 | |
| 6pm–7pm | 47.3% | 0.0% | 112 |
| 7pm–8pm | Limited data | 8 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MSY to SAN
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 12 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 30 | ||
| Summer peak (Jun 15 - Aug 15) | 52.7% | -22.1 pts | 0.0% | 112 |
| All other days | 74.8% | — | 0.6% | 528 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).