Historical on-time performance
San Francisco to Nashville
1,969 miData through Dec 2025Source: US DOT · BTS
Flights on SFO–BNA arrive on time 77% of the time over the last 12 months.
On-time rate77%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights
based on 914 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesbestOn-time81%Medianon timep9025 minCancel0.5%Flights792
- Southwest AirlinesOn-time51%Median10 minp9070 minCancel0.0%Flights122
Why flights run late
Delay causes
- Airline26%
- Weather0%
- Air traffic (NAS)24%
- Late aircraft50%
- 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 SFO → 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 — 83% on time.
- Mornings83% on time · p90 20 min · 259 flights
- Overnights75% on time · p90 35 min · 877 flights
- Afternoons75% on time · p90 45 min · 126 flights · limited
- Middays71% on time · p90 40 min · 972 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 71% to 80% on time.
- Saturdays80% on time · p90 25 min · 291 flights
- Mondays77% on time · p90 30 min · 332 flights
- Wednesdays75% on time · p90 40 min · 306 flights
- Tuesdays73% on time · p90 40 min · 287 flights
- Fridays73% on time · p90 40 min · 341 flights
- Sundays72% on time · p90 40 min · 342 flights
- Thursdays71% on time · p90 35 min · 338 flights
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