Tucson (TUS) to Las Vegas (LAS): On-Time Performance
Data through May 2026
The calendar drives reliability on TUS–LAS. November 2024 flights landed on schedule 96% of the time, but August 2024 dropped to 75% — a gap of 21 points. Across the full period the route averages 84% on-time against a national 78%. Morning departures also hold up better than evening ones (94% vs 78%), which matters most in the rough months.
- On-time
- 84%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 0.2%
- Flights/day
- 3.7
- last 12 months
- Duration
- 1h 25m
- scheduled
- Distance
- 364 mi
Best airline from TUS to LAS
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlinesmost reliable | 85% | 10 min | 0.2% | 2,523 |
| Frontier Airlines | 73% | 33 min | 0.9% | 110 |
Monthly on-time trend
Best time to fly from TUS to LAS
Aim for departures around 5 a.m. (97% on-time); avoid 3 p.m. departures (66%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 81% | 10 min |
| Tuesdaybest | 92% | 6 min |
| Wednesday | 91% | 5 min |
| Thursday | 79% | 14 min |
| Friday | 80% | 17 min |
| Saturday | 91% | 6 min |
| Sunday | 82% | 14 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft56%
- Airline operations13%
- National airspace system24%
- Weather7%
Frequently asked questions
- How often are flights from TUS to LAS delayed?
- 16% of TUS–LAS flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 11 minutes.
- Which airline is most reliable from TUS to LAS?
- Southwest Airlines has the best on-time record on this route at 85%, based on 2,523 flights. 2 airlines flew TUS–LAS frequently enough to compare in this period.
- What is the best time of day to fly from TUS to LAS?
- Departures around 5 a.m. have the best record (97% on-time), while departures around 3 p.m. have the worst (66%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from TUS to LAS?
- The scheduled TUS–LAS flight time averages 1h 25m over 364 miles. Actual arrival times vary — flights on this route land 15+ minutes late 16% of the time.
- How often are TUS to LAS flights cancelled?
- 0.2% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from TUS to LAS?
- August 2024 was the roughest month in this dataset, with only 75% of arrivals on time. The best was November 2024 at 96%. If your dates are flexible, that 21-point gap is worth planning around.
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Based on 2,633 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.