San Diego (SAN) to Nashville (BNA): On-Time Performance
Data through May 2026
The calendar drives reliability on SAN–BNA. February 2025 flights landed on schedule 89% of the time, but May 2026 dropped to 61% — a gap of 28 points. Across the full period the route averages 76% on-time against a national 78%. Morning departures also hold up better than evening ones (86% vs 69%), which matters most in the rough months.
- On-time
- 76%
- arrived <15 min late
- Avg delay
- 13 min
- completed flights
- Cancelled
- 0.7%
- Flights/day
- 2.8
- last 12 months
- Duration
- 3h 56m
- 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 (57%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 73% | 13 min |
| Tuesdaybest | 85% | 8 min |
| Wednesday | 84% | 9 min |
| Thursday | 69% | 17 min |
| Friday | 66% | 21 min |
| Saturday | 82% | 11 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 aircraft58%
- Airline operations26%
- National airspace system15%
- Weather1%
Frequently asked questions
- How often are flights from SAN to BNA delayed?
- 24% of SAN–BNA 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 13 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 (57%). 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 56m over 1,751 miles. Actual arrival times vary — flights on this route land 15+ minutes late 24% of the time.
- How often are SAN to BNA flights cancelled?
- 0.7% 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 SAN to BNA?
- May 2026 was the roughest month in this dataset, with only 61% of arrivals on time. The best was February 2025 at 89%. If your dates are flexible, that 28-point gap is worth planning around.
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Based on 1,971 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.