Las Vegas (LAS) to Memphis (MEM): On-Time Performance
Data through May 2026
Las Vegas (LAS) to Memphis (MEM) effectively runs on two schedules. In September 2025, 98% of arrivals were on time; in May 2026 that fell to 64% — a 34-point seasonal swing. Across the full period the route averages 83% on-time against a national 78%.
- On-time
- 83%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 0.6%
- Flights/day
- 1.7
- last 12 months
- Duration
- 3h 19m
- scheduled
- Distance
- 1,416 mi
Best airline from LAS to MEM
3 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Allegiant Airmost reliable | 89% | 12 min | 0.5% | 210 |
| Spirit Airlines | 86% | 13 min | 0.7% | 590 |
| Southwest Airlines | 77% | 12 min | 0.6% | 531 |
Monthly on-time trend
Best time to fly from LAS to MEM
Aim for departures around 5 a.m. (100% on-time); avoid 6 p.m. departures (61%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 83% | 15 min |
| Tuesday | 84% | 11 min |
| Wednesdaybest | 88% | 7 min |
| Thursday | 82% | 13 min |
| Friday | 80% | 14 min |
| Saturday | 87% | 5 min |
| Sunday | 80% | 15 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft32%
- Airline operations40%
- National airspace system27%
- Weather1%
Frequently asked questions
- How often are flights from LAS to MEM delayed?
- 17% of LAS–MEM 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 12 minutes.
- Which airline is most reliable from LAS to MEM?
- Allegiant Air has the best on-time record on this route at 89%, based on 210 flights. 3 airlines flew LAS–MEM frequently enough to compare in this period.
- What is the best time of day to fly from LAS to MEM?
- Departures around 5 a.m. have the best record (100% on-time), while departures around 6 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 LAS to MEM?
- The scheduled LAS–MEM flight time averages 3h 19m over 1,416 miles. Actual arrival times vary — flights on this route land 15+ minutes late 17% of the time.
- How often are LAS to MEM flights cancelled?
- 0.6% 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 LAS to MEM?
- May 2026 was the roughest month in this dataset, with only 64% of arrivals on time. The best was September 2025 at 98%. If your dates are flexible, that 34-point gap is worth planning around.
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Based on 1,350 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.