Memphis (MEM) to Las Vegas (LAS): On-Time Performance
Data through July 2026
Memphis (MEM) to Las Vegas (LAS) effectively runs on two schedules. In January 2026, 92% of arrivals were on time; in May 2026 that fell to 62% — a 31-point seasonal swing. Across the full period the route averages 81% on-time against a national 78%. Morning departures also hold up better than evening ones (91% vs 74%), which matters most in the rough months.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 15 min
- completed flights
- Cancelled
- 0.5%
- Flights/day
- 1.6
- last 12 months
- Duration
- 3h 42m
- scheduled
- Distance
- 1,416 mi
Best airline from MEM to LAS
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Spirit Airlinesmost reliable | 83% | 16 min | 0.6% | 541 |
| Southwest Airlines | 82% | 12 min | 0.5% | 584 |
| Allegiant Air | 74% | 19 min | 0.5% | 219 |
Monthly on-time trend
Best time to fly from MEM to LAS
Aim for departures around 7 a.m. (98% on-time); avoid 10 p.m. departures (64%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 78% | 19 min |
| Tuesday | 86% | 7 min |
| Wednesday | 84% | 11 min |
| Thursday | 78% | 15 min |
| Friday | 75% | 19 min |
| Saturdaybest | 93% | 4 min |
| Sunday | 81% | 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 aircraft49%
- Airline operations22%
- National airspace system27%
- Weather2%
Frequently asked questions
- How often are flights from MEM to LAS delayed?
- 19% of MEM–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 15 minutes.
- Which airline is most reliable from MEM to LAS?
- Spirit Airlines has the best on-time record on this route at 83%, based on 541 flights. 3 airlines flew MEM–LAS frequently enough to compare in this period.
- What is the best time of day to fly from MEM to LAS?
- Departures around 7 a.m. have the best record (98% on-time), while departures around 10 p.m. have the worst (64%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from MEM to LAS?
- The scheduled MEM–LAS flight time averages 3h 42m over 1,416 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are MEM to LAS flights cancelled?
- 0.5% 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 MEM to LAS?
- May 2026 was the roughest month in this dataset, with only 62% of arrivals on time. The best was January 2026 at 92%. If your dates are flexible, that 31-point gap is worth planning around.
Explore related pages
More routes from MEM
Other ways to fly to Las Vegas (LAS)
Related guides
Based on 1,363 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.