Historical on-time performance
San Diego to Nashville
1,751 miData through Dec 2025Source: US DOT · BTS
Flights on SAN–BNA arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.5%of scheduled flights
based on 923 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time78%Medianon timep9035 minCancel0.5%Flights923
Why flights run late
Delay causes
- Airline23%
- Weather1%
- Air traffic (NAS)11%
- Late aircraft64%
- Security0%
Most delay minutes here are attributed to Late aircraft.
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 (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 88% on time.
- Mornings88% on time · p90 15 min · 901 flights
- Afternoons75% on time · p90 35 min · 312 flights
- Middays70% on time · p90 45 min · 604 flights
- Evenings63% on time · p90 55 min · 572 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 67% to 83% on time.
- Saturdays83% on time · p90 30 min · 305 flights
- Tuesdays82% on time · p90 30 min · 343 flights
- Wednesdays81% on time · p90 30 min · 340 flights
- Mondays75% on time · p90 40 min · 355 flights
- Sundays74% on time · p90 40 min · 348 flights
- Thursdays71% on time · p90 45 min · 347 flights
- Fridays67% on time · p90 55 min · 351 flights
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