Best Time to Fly DFW to LAS: On-Time Stats by Hour & Airline
Dallas/Fort Worth International → Harry Reid International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 69.0% of Dallas/Fort Worth (DFW) to Las Vegas (LAS) flights arrived on time (5,132 scheduled flights). That is 8.6 points below the national average of 77.6%.
Spirit Airlines was the most punctual of the 3 airlines on the route at 79.5%, while American Airlines trailed at 66.8%.
February has been the best month (77% on time) and Sunday the weakest day of the week (66%).
2.5% of flights were cancelled, versus 1.8% nationally.
DFW to LAS 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 |
|---|---|---|---|---|
| Spirit Airlines | 79.5% | 94 min | 1.6% | 307 |
| Frontier Airlines | 75.5% | 71 min | 1.8% | 841 |
| American Airlines | 66.8% | 70 min | 2.8% | 3,984 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DFW to LAS
On-time arrival % by scheduled departure hour (local time), 11,101 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 88.7% | 1.9% | 54 |
| 6am–7am | 91.8% | 1.4% | 210 |
| 7am–8am | 87.0% | 2.2% | 769 |
| 8am–9am | 85.4% | 1.4% | 802 |
| 9am–10am | 79.2% | 0.6% | 179 |
| 10am–11am | 85.1% | 0.5% | 223 |
| 11am–12pm | 70.4% | 2.4% | 755 |
| 12pm–1pm | 75.2% | 2.1% | 702 |
| 1pm–2pm | 65.3% | 1.5% | 474 |
| 2pm–3pm | 73.5% | 2.5% | 732 |
| 3pm–4pm | 63.3% | 1.4% | 497 |
| 4pm–5pm | 63.8% | 2.0% | 780 |
| 5pm–6pm | 67.7% | 3.4% | 799 |
| 6pm–7pm | 64.4% | 3.5% | 537 |
| 7pm–8pm | 61.6% | 3.1% | 777 |
| 8pm–9pm | 59.9% | 2.3% | 821 |
| 9pm–10pm | 61.2% | 3.8% | 662 |
| 10pm–11pm | 66.0% | 2.0% | 1,222 |
| 11pm–12am | 80.2% | 0.0% | 106 |
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 LAS
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) | 67.7% | -4.8 pts | 1.0% | 197 |
| Christmas & New Year (Dec 20 - Jan 3) | 69.4% | -3.1 pts | 2.8% | 436 |
| Summer peak (Jun 15 - Aug 15) | 59.7% | -12.8 pts | 2.3% | 1,734 |
| All other days | 72.5% | — | 2.3% | 8,734 |
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).