Nashville (BNA) to San Diego (SAN): On-Time Performance
Data through May 2026
Nashville (BNA) to San Diego (SAN) effectively runs on two schedules. In January 2026, 87% of arrivals were on time; in December 2024 that fell to 63% — a 23-point seasonal swing. Across the full period the route averages 76% on-time against a national 78%. Morning departures also hold up better than evening ones (88% vs 66%), which matters most in the rough months.
- On-time
- 76%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 0.6%
- Flights/day
- 2.8
- last 12 months
- Duration
- 4h 26m
- scheduled
- Distance
- 1,751 mi
Monthly on-time trend
Best time to fly from BNA to SAN
Aim for departures around 7 a.m. (91% on-time); avoid 3 p.m. departures (53%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 13 min |
| Tuesdaybest | 82% | 10 min |
| Wednesday | 78% | 10 min |
| Thursday | 70% | 17 min |
| Friday | 73% | 12 min |
| Saturday | 80% | 10 min |
| Sunday | 75% | 14 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft59%
- Airline operations23%
- National airspace system16%
- Weather2%
Frequently asked questions
- How often are flights from BNA to SAN delayed?
- 24% of BNA–SAN flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 12 minutes.
- What is the best time of day to fly from BNA to SAN?
- Departures around 7 a.m. have the best record (91% on-time), while departures around 3 p.m. have the worst (53%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BNA to SAN?
- The scheduled BNA–SAN flight time averages 4h 26m over 1,751 miles. Actual arrival times vary — flights on this route land 15+ minutes late 24% of the time.
- How often are BNA to SAN flights cancelled?
- 0.6% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from BNA to SAN?
- December 2024 was the roughest month in this dataset, with only 63% of arrivals on time. The best was January 2026 at 87%. If your dates are flexible, that 23-point gap is worth planning around.
Explore related pages
More routes from BNA
Other ways to fly to San Diego (SAN)
Related guides
Based on 1,982 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.