Best Time to Fly ANC to LAS: On-Time Stats by Hour & Airline
Ted Stevens Anchorage International → Harry Reid International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 82.4% of Anchorage (ANC) to Las Vegas (LAS) flights arrived on time (274 scheduled flights). That is 4.8 points above the national average of 77.6%.
Alaska Airlines was the most punctual of the 2 airlines on the route at 88.2%, while Southwest Airlines trailed at 68.0%.
November has been the best month (94% on time) and Saturday the weakest day of the week (76%).
0.4% of flights were cancelled, versus 1.8% nationally.
ANC 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 |
|---|---|---|---|---|
| Alaska Airlines | 88.2% | 39 min | 0.5% | 196 |
| Southwest Airlines | 68.0% | 47 min | 0.0% | 78 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ANC to LAS
On-time arrival % by scheduled departure hour (local time), 376 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 3pm–4pm | Limited data | 4 | |
| 10pm–11pm | Limited data | 8 | |
| 11pm–12am | 83.5% | 0.3% | 364 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ANC 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) | Limited data | 8 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 18 | ||
| Summer peak (Jun 15 - Aug 15) | 76.7% | -10.4 pts | 0.0% | 116 |
| All other days | 87.1% | — | 0.4% | 234 |
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).