Historical on-time performance
Salt Lake City to Nashville
1,404 miData through Dec 2025Source: US DOT · BTS
Flights on SLC–BNA arrive on time 85% of the time over the last 12 months.
On-time rate85%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights
based on 1,178 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Delta Air LinesOn-time85%Medianon timep9025 minCancel0.3%Flights933
- Southwest AirlinesOn-time83%Medianon timep9020 minCancel0.0%Flights245
Why flights run late
Delay causes
- Airline52%
- Weather5%
- Air traffic (NAS)21%
- Late aircraft22%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SLC → 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 — 90% on time.
- Mornings90% on time · p90 10 min · 898 flights
- Afternoons84% on time · p90 30 min · 204 flights
- Middays83% on time · p90 30 min · 882 flights
- Evenings81% on time · p90 30 min · 1,051 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 79% to 88% on time.
- Wednesdays88% on time · p90 15 min · 398 flights
- Thursdays88% on time · p90 15 min · 440 flights
- Tuesdays87% on time · p90 20 min · 383 flights
- Saturdays84% on time · p90 20 min · 450 flights
- Mondays83% on time · p90 25 min · 441 flights
- Fridays83% on time · p90 25 min · 444 flights
- Sundays79% on time · p90 35 min · 503 flights
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