LAS to MEM flight delays
Las Vegas, NV (LAS) Memphis, TN (MEM) · 1,416 miles
1,328 flights · July 2024 – July 2026 · US Bureau of Transportation Statistics
82.02%
Arrived on time
Within 15 minutes of schedule
0.53%
Cancelled
Share of scheduled flights
64 min
When late, late by
Average across delayed arrivals
13 min
Delay per flight
Averaged over every flight flown
What the record says about this route
Which airline you fly changes the odds here. Allegiant Air arrived on time 11 points more often than Southwest Airlines over the same period on the same route — same airports, same weather, same air traffic control. A gap that survives all of that is about how the two airlines are run.
The season swings this route hard. In September it ran 38.2 points more punctual than in June — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
Flights from Las Vegas to Memphis keep to schedule more reliably than most. On a route this punctual the day you fly matters more than the airline you pick.
Which airline should you fly on this route?
Over July 2024 – July 2026, Allegiant Air arrived on time most often on LAS to MEM. Southwest Airlines was late most often. Flights ran closest to schedule in September and worst in June.
Every airline on LAS to MEM
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Southwest Airlines | 557 | 76.59% | 0.54% | 46 min | C |
| Spirit Airlines | 542 | 85.71% | 0.55% | 87 min | B |
| Allegiant Air | 210 | 87.56% | 0.48% | 89 min | A |
| Frontier Airlines | 19 | 73.68% | 0% | 35 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
MEM to LAS Memphis back to Las Vegas 80.76% on time BOther routes from Las Vegas
Common questions
Are flights from Las Vegas to Memphis usually delayed?
82.02% of flights on the LAS to MEM route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is better than the average route in this record.
Which airline is most on time from Las Vegas to Memphis?
Allegiant Air, at 87.56% on time across 210 flights. The least punctual on the route was Southwest Airlines at 76.59%.
How often are LAS to MEM flights cancelled?
0.53% of scheduled flights did not operate — about 5 in every thousand. That is in the normal range.
What is the best month to fly Las Vegas to Memphis?
September, when 98.2% of flights arrived on time. The worst was June at 60%.
When LAS to MEM flights are late, how late are they?
About 64 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on LAS to MEM during July 2024 – July 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →