San Diego (SAN) to Nashville (BNA): On-Time Performance
Data through July 2026
The calendar drives reliability on SAN–BNA. February 2025 flights landed on schedule 89% of the time, but July 2026 dropped to 59% — a gap of 29 points. Across the full period the route averages 75% on-time against a national 78%. Morning departures also hold up better than evening ones (85% vs 71%), which matters most in the rough months.
- On-time
- 75%
- arrived <15 min late
- Avg delay
- 14 min
- completed flights
- Cancelled
- 0.8%
- Flights/day
- 3.0
- last 12 months
- Duration
- 3h 57m
- scheduled
- Distance
- 1,751 mi
Monthly on-time trend
Best time to fly from SAN to BNA
Aim for departures around 10 p.m. (95% on-time); avoid 12 p.m. departures (47%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 71% | 14 min |
| Tuesdaybest | 83% | 9 min |
| Wednesday | 81% | 9 min |
| Thursday | 68% | 17 min |
| Friday | 64% | 22 min |
| Saturday | 83% | 10 min |
| Sunday | 76% | 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 aircraft55%
- Airline operations28%
- National airspace system16%
- Weather1%
Frequently asked questions
- How often are flights from SAN to BNA delayed?
- 25% of SAN–BNA flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 14 minutes.
- What is the best time of day to fly from SAN to BNA?
- Departures around 10 p.m. have the best record (95% on-time), while departures around 12 p.m. have the worst (47%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SAN to BNA?
- The scheduled SAN–BNA flight time averages 3h 57m over 1,751 miles. Actual arrival times vary — flights on this route land 15+ minutes late 25% of the time.
- How often are SAN to BNA flights cancelled?
- 0.8% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from SAN to BNA?
- July 2026 was the roughest month in this dataset, with only 59% of arrivals on time. The best was February 2025 at 89%. If your dates are flexible, that 29-point gap is worth planning around.
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Based on 2,115 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.