MKE to LAS flight delays
Milwaukee, WI (MKE) Las Vegas, NV (LAS) · 1,524 miles
1,070 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
81.27%
Arrived on time
Within 15 minutes of schedule
1.12%
Cancelled
Share of scheduled flights
55 min
When late, late by
Average across delayed arrivals
11 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The two directions do not behave alike. LAS to MKE arrives on time 6.3 points less often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
Only Southwest Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
The Milwaukee to Las Vegas route sits close to the middle of the record — neither notably punctual nor notably late.
Which airline should you fly on this route?
Over January 2025 – August 2026, Southwest Airlines arrived on time most often on MKE to LAS. Flights ran closest to schedule in March and worst in December.
Every airline on MKE to LAS
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 | 1,004 | 80.99% | 0.9% | 54 min | C |
| Spirit Airlines | 60 | 84.48% | 3.33% | 77 min | — |
| Frontier Airlines | 6 | 100% | 16.67% | — | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
LAS to MKE Las Vegas back to Milwaukee 74.98% on time COther routes from Milwaukee
Common questions
Are flights from Milwaukee to Las Vegas usually delayed?
81.27% of flights on the MKE to LAS 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 airlines fly from Milwaukee to Las Vegas?
Only Southwest Airlines appears in the published record on this route, with 1,004 flights and 80.99% arriving on time.
How often are MKE to LAS flights cancelled?
1.12% of scheduled flights did not operate — about 11 in every thousand. That is in the normal range.
What is the best month to fly Milwaukee to Las Vegas?
March, when 85.6% of flights arrived on time. The worst was December at 70.7%.
When MKE to LAS flights are late, how late are they?
About 55 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 MKE to LAS during January 2025 – August 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 →