Best Time to Fly SLC to DFW: On-Time Stats by Hour & Airline
Salt Lake City International → Dallas/Fort Worth International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 78.8% of Salt Lake City (SLC) to Dallas/Fort Worth (DFW) flights arrived on time (3,866 scheduled flights). That is 1.2 points above the national average of 77.6%.
Among 3 airlines, Delta Air Lines led with 80.1% on time and Frontier Airlines was last with 77.5%.
Over 24 months, Tuesday was the most reliable day (81% on time) and August the worst month (70%).
The cancellation rate was 2.4% (US average 1.8%).
SLC to DFW 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 | 80.1% | 67 min | 1.2% | 1,458 |
| American Airlines | 78.1% | 104 min | 3.3% | 2,203 |
| Frontier Airlines | 77.5% | 61 min | 2.5% | 196 |
| Envoy Air | Limited data | 9 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SLC to DFW
On-time arrival % by scheduled departure hour (local time), 7,765 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 90.1% | 2.0% | 730 |
| 6am–7am | 85.1% | 1.7% | 172 |
| 7am–8am | 83.5% | 2.1% | 1,017 |
| 8am–9am | 82.7% | 1.4% | 710 |
| 9am–10am | 84.2% | 1.9% | 512 |
| 10am–11am | 81.8% | 0.8% | 485 |
| 11am–12pm | 81.0% | 2.5% | 591 |
| 12pm–1pm | 70.3% | 3.6% | 308 |
| 1pm–2pm | 72.9% | 1.6% | 1,089 |
| 2pm–3pm | 66.6% | 1.8% | 394 |
| 3pm–4pm | 57.6% | 1.0% | 194 |
| 4pm–5pm | 61.4% | 5.5% | 562 |
| 5pm–6pm | 74.8% | 1.1% | 698 |
| 6pm–7pm | 79.3% | 0.0% | 121 |
| 7pm–8pm | 46.9% | 2.0% | 50 |
| 8pm–9pm | 80.0% | 5.4% | 74 |
| 9pm–10pm | 51.8% | 3.5% | 58 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SLC to DFW
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) | 78.1% | -0.7 pts | 0.0% | 138 |
| Christmas & New Year (Dec 20 - Jan 3) | 79.7% | +0.9 pts | 3.1% | 322 |
| Summer peak (Jun 15 - Aug 15) | 70.5% | -8.3 pts | 2.1% | 1,330 |
| All other days | 78.8% | — | 2.1% | 5,975 |
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).