Best Time to Fly BNA to SLC: On-Time Stats by Hour & Airline
Nashville International → Salt Lake City International
Data through July 2026 · Last updated October 18, 2026
1,206 flights were scheduled from Nashville (BNA) to Salt Lake City (SLC) in the last 12 months, and 84.0% of those that flew arrived on time, 6.4 points above the US average of 77.6%.
Among 2 airlines, Delta Air Lines led with 87.6% on time and Southwest Airlines was last with 71.8%.
Over 24 months, Wednesday was the most reliable day (87% on time) and June the worst month (74%).
The cancellation rate was 0.7% (US average 1.8%).
BNA to SLC on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Lines | 87.6% | 60 min | 0.6% | 934 |
| Southwest Airlines | 71.8% | 48 min | 0.7% | 272 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BNA to SLC
On-time arrival % by scheduled departure hour (local time), 2,290 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 90.7% | 0.6% | 727 |
| 8am–9am | Limited data | 11 | |
| 9am–10am | Limited data | 7 | |
| 10am–11am | Limited data | 5 | |
| 11am–12pm | 82.2% | 0.0% | 73 |
| 12pm–1pm | 73.3% | 1.3% | 76 |
| 1pm–2pm | 87.4% | 0.4% | 255 |
| 2pm–3pm | 81.8% | 0.0% | 297 |
| 3pm–4pm | 77.5% | 0.0% | 71 |
| 4pm–5pm | 80.7% | 0.9% | 214 |
| 5pm–6pm | 87.4% | 0.7% | 144 |
| 6pm–7pm | 64.5% | 0.0% | 31 |
| 7pm–8pm | 83.4% | 0.3% | 369 |
| 9pm–10pm | Limited data | 5 | |
| 10pm–11pm | Limited data | 5 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BNA to SLC
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 82.9% | -3.7 pts | 0.0% | 41 |
| Christmas & New Year (Dec 20 - Jan 3) | 86.5% | -0.2 pts | 0.0% | 96 |
| Summer peak (Jun 15 - Aug 15) | 79.0% | -7.6 pts | 0.2% | 454 |
| All other days | 86.7% | — | 0.6% | 1,699 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).