Austin (AUS) to Las Vegas (LAS): On-Time Performance
Data through July 2026
The calendar drives reliability on AUS–LAS. October 2024 flights landed on schedule 89% of the time, but June 2026 dropped to 56% — a gap of 32 points. Across the full period the route averages 76% on-time against a national 78%. Morning departures also hold up better than evening ones (92% vs 65%), which matters most in the rough months.
- On-time
- 76%
- arrived <15 min late
- Avg delay
- 16 min
- completed flights
- Cancelled
- 0.4%
- Flights/day
- 7.9
- last 12 months
- Duration
- 2h 58m
- scheduled
- Distance
- 1,090 mi
Best airline from AUS to LAS
5 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Spirit Airlinesmost reliable | 83% | 11 min | 0.5% | 216 |
| Southwest Airlines | 78% | 12 min | 0.3% | 4,513 |
| American Airlines | 74% | 34 min | 0.0% | 98 |
| Delta Air Lines | 71% | 25 min | 0.8% | 761 |
| Frontier Airlines | 68% | 29 min | 1.2% | 590 |
Monthly on-time trend
Best time to fly from AUS to LAS
Aim for departures around 6 a.m. (97% on-time); avoid 4 p.m. departures (61%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 71% | 18 min |
| Tuesday | 82% | 12 min |
| Wednesday | 82% | 12 min |
| Thursday | 71% | 17 min |
| Friday | 73% | 17 min |
| Saturdaybest | 84% | 13 min |
| Sunday | 75% | 18 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft52%
- Airline operations28%
- National airspace system17%
- Weather4%
Frequently asked questions
- How often are flights from AUS to LAS delayed?
- 24% of AUS–LAS flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 16 minutes.
- Which airline is most reliable from AUS to LAS?
- Spirit Airlines has the best on-time record on this route at 83%, based on 216 flights. 5 airlines flew AUS–LAS frequently enough to compare in this period.
- What is the best time of day to fly from AUS to LAS?
- Departures around 6 a.m. have the best record (97% on-time), while departures around 4 p.m. have the worst (61%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from AUS to LAS?
- The scheduled AUS–LAS flight time averages 2h 58m over 1,090 miles. Actual arrival times vary — flights on this route land 15+ minutes late 24% of the time.
- How often are AUS to LAS flights cancelled?
- 0.4% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from AUS to LAS?
- June 2026 was the roughest month in this dataset, with only 56% of arrivals on time. The best was October 2024 at 89%. If your dates are flexible, that 32-point gap is worth planning around.
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Based on 6,241 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.