Historical on-time performance
San Diego to Nashville
1,751 miData through May 2026Source: US DOT · BTS
Flights on SAN–BNA arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights
based on 1,037 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time75%Medianon timep9035 minCancel0.8%Flights1,037
Why flights run late
Delay causes
- Airline28%
- Weather1%
- Air traffic (NAS)14%
- Late aircraft57%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline25%
- Weather63%
- Air traffic (NAS)13%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 8 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SAN → BNA
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 87% on time.
- Mornings87% on time · p90 15 min · 962 flights
- Afternoons75% on time · p90 35 min · 292 flights
- Middays66% on time · p90 45 min · 721 flights
- Evenings65% on time · p90 55 min · 605 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 67% to 84% on time.
- Saturdays84% on time · p90 25 min · 327 flights
- Tuesdays82% on time · p90 25 min · 375 flights
- Wednesdays81% on time · p90 25 min · 372 flights
- Sundays74% on time · p90 35 min · 382 flights
- Mondays73% on time · p90 40 min · 404 flights
- Thursdays69% on time · p90 50 min · 402 flights
- Fridays67% on time · p90 55 min · 406 flights
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