Best Time to Fly DFW to SLC: On-Time Stats by Hour & Airline
Dallas/Fort Worth International → Salt Lake City International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 70.0% of Dallas/Fort Worth (DFW) to Salt Lake City (SLC) flights arrived on time (3,869 scheduled flights). That is 7.6 points below the national average of 77.6%.
Among 3 airlines, Frontier Airlines led with 83.8% on time and American Airlines was last with 60.8%.
Over 24 months, Tuesday was the most reliable day (76% on time) and July the worst month (58%).
The cancellation rate was 2.4% (US average 1.8%).
DFW 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 |
|---|---|---|---|---|
| Frontier Airlines | 83.8% | 64 min | 2.0% | 196 |
| Delta Air Lines | 81.9% | 89 min | 1.4% | 1,459 |
| American Airlines | 60.8% | 68 min | 3.1% | 2,205 |
| Envoy Air | Limited data | 9 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DFW to SLC
On-time arrival % by scheduled departure hour (local time), 7,769 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 97.9% | 0.0% | 47 |
| 6am–7am | Limited data | 16 | |
| 7am–8am | 87.7% | 2.5% | 158 |
| 8am–9am | 86.8% | 1.4% | 932 |
| 9am–10am | 72.1% | 2.4% | 460 |
| 10am–11am | 82.3% | 1.0% | 206 |
| 11am–12pm | 67.0% | 1.5% | 532 |
| 12pm–1pm | 81.9% | 0.9% | 748 |
| 1pm–2pm | 65.8% | 3.1% | 676 |
| 2pm–3pm | 79.3% | 0.6% | 827 |
| 3pm–4pm | 68.8% | 3.4% | 209 |
| 4pm–5pm | 75.6% | 0.0% | 41 |
| 5pm–6pm | 63.2% | 2.4% | 798 |
| 6pm–7pm | 66.2% | 1.8% | 879 |
| 7pm–8pm | 66.1% | 0.6% | 170 |
| 8pm–9pm | 54.6% | 5.2% | 172 |
| 9pm–10pm | 57.6% | 4.9% | 492 |
| 10pm–11pm | 51.4% | 2.5% | 406 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DFW 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) | 73.9% | +0.0 pts | 0.0% | 138 |
| Christmas & New Year (Dec 20 - Jan 3) | 71.3% | -2.6 pts | 2.8% | 323 |
| Summer peak (Jun 15 - Aug 15) | 59.8% | -14.1 pts | 1.9% | 1,331 |
| All other days | 73.9% | — | 2.1% | 5,977 |
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).