Best Time to Fly JFK to LAS: On-Time Stats by Hour & Airline
John F. Kennedy International → Harry Reid International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 80.3% of New York (JFK) to Las Vegas (LAS) flights arrived on time (3,713 scheduled flights). That is 2.7 points above the national average of 77.6%.
American Airlines was the most punctual of the 4 airlines on the route at 84.1%, while Frontier Airlines trailed at 66.5%.
November has been the best month (85% on time) and Sunday the weakest day of the week (77%).
2.5% of flights were cancelled, versus 1.8% nationally.
JFK 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 |
|---|---|---|---|---|
| American Airlines | 84.1% | 106 min | 2.2% | 491 |
| JetBlue | 82.5% | 64 min | 2.6% | 1,374 |
| Delta Air Lines | 78.9% | 53 min | 2.7% | 1,676 |
| Frontier Airlines | 66.5% | 68 min | 1.2% | 172 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly JFK to LAS
On-time arrival % by scheduled departure hour (local time), 7,657 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 84.0% | 1.2% | 843 |
| 7am–8am | 86.2% | 1.2% | 1,556 |
| 8am–9am | 85.9% | 1.1% | 353 |
| 9am–10am | 84.2% | 0.4% | 266 |
| 10am–11am | 86.2% | 1.8% | 274 |
| 11am–12pm | 86.5% | 2.0% | 782 |
| 12pm–1pm | 86.3% | 0.0% | 184 |
| 1pm–2pm | Limited data | 28 | |
| 2pm–3pm | Limited data | 12 | |
| 3pm–4pm | 72.9% | 1.4% | 142 |
| 4pm–5pm | 79.3% | 1.3% | 773 |
| 5pm–6pm | 84.1% | 3.3% | 182 |
| 6pm–7pm | 76.3% | 0.8% | 495 |
| 7pm–8pm | 68.5% | 2.6% | 772 |
| 8pm–9pm | 72.5% | 4.1% | 220 |
| 9pm–10pm | 74.9% | 1.4% | 717 |
| 10pm–11pm | 78.8% | 10.3% | 58 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on JFK 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) | 84.7% | +2.0 pts | 0.8% | 127 |
| Christmas & New Year (Dec 20 - Jan 3) | 70.5% | -12.2 pts | 1.9% | 260 |
| Summer peak (Jun 15 - Aug 15) | 74.4% | -8.3 pts | 3.9% | 1,257 |
| All other days | 82.7% | — | 1.1% | 6,013 |
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).