Best Time to Fly DAL to SLC: On-Time Stats by Hour & Airline
Dallas Love Field → Salt Lake City International
Data through July 2026 · Last updated October 18, 2026
674 flights were scheduled from Dallas (DAL) to Salt Lake City (SLC) in the last 12 months, and 71.6% of those that flew arrived on time, 6.0 points below the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (80% on time) and June the worst month (59%).
The cancellation rate was 1.0% (US average 1.8%).
DAL 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 |
|---|---|---|---|---|
| Southwest Airlines | 71.6% | 47 min | 1.0% | 674 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DAL to SLC
On-time arrival % by scheduled departure hour (local time), 1,364 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 90.3% | 0.0% | 31 |
| 7am–8am | 93.5% | 0.0% | 31 |
| 8am–9am | 88.8% | 0.7% | 145 |
| 9am–10am | 90.0% | 0.4% | 231 |
| 10am–11am | 83.0% | 0.0% | 53 |
| 11am–12pm | 85.6% | 1.9% | 106 |
| 12pm–1pm | 81.8% | 0.0% | 126 |
| 1pm–2pm | 77.4% | 0.0% | 31 |
| 3pm–4pm | Limited data | 23 | |
| 4pm–5pm | Limited data | 12 | |
| 5pm–6pm | 64.3% | 1.4% | 71 |
| 6pm–7pm | 71.2% | 0.8% | 119 |
| 7pm–8pm | 58.4% | 2.5% | 79 |
| 8pm–9pm | 57.0% | 1.1% | 174 |
| 9pm–10pm | 50.0% | 2.1% | 96 |
| 10pm–11pm | 63.9% | 0.0% | 36 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DAL 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) | Limited data | 28 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 64.3% | -13.3 pts | 0.0% | 56 |
| Summer peak (Jun 15 - Aug 15) | 70.5% | -7.1 pts | 0.4% | 226 |
| All other days | 77.6% | — | 1.0% | 1,054 |
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).