Historical on-time performance
Nashville to Salt Lake City
1,404 miData through May 2026Source: US DOT · BTS
Flights on BNA–SLC arrive on time 84% of the time over the last 12 months.
On-time rate84%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 1,148 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesbestOn-time86%Medianon timep9020 minCancel0.7%Flights934
- Southwest AirlinesOn-time74%Medianon timep9055 minCancel0.0%Flights214
Why flights run late
Delay causes
- Airline45%
- Weather5%
- Air traffic (NAS)14%
- Late aircraft36%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline57%
- Weather43%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 7 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 BNA → SLC
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 — 92% on time.
- Mornings92% on time · p90 10 min · 1,117 flights
- Afternoons85% on time · p90 25 min · 703 flights
- Middays85% on time · p90 25 min · 577 flights
- Evenings83% on time · p90 30 min · 811 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 85% to 89% on time.
- Wednesdays89% on time · p90 20 min · 427 flights
- Tuesdays88% on time · p90 15 min · 412 flights
- Fridays87% on time · p90 20 min · 465 flights
- Thursdays87% on time · p90 20 min · 454 flights
- Mondays86% on time · p90 20 min · 462 flights
- Sundays86% on time · p90 20 min · 527 flights
- Saturdays85% on time · p90 20 min · 471 flights
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