MCI to LAS flight delays
Kansas City, MO (MCI) Las Vegas, NV (LAS) · 1,139 miles
1,987 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
80.99%
Arrived on time
Within 15 minutes of schedule
0.5%
Cancelled
Share of scheduled flights
49 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 2 airlines here are separated by under 6 points — close enough to call a tie. Choose on price and departure time.
The Kansas City 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, Spirit Airlines arrived on time most often on MCI to LAS. Southwest Airlines was late most often. Flights ran closest to schedule in January and worst in April.
Every airline on MCI 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 | 1,712 | 80.25% | 0.23% | 47 min | B |
| Spirit Airlines | 273 | 85.66% | 2.2% | 66 min | B |
| American Airlines | 2 | 100% | 0% | — | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
LAS to MCI Las Vegas back to Kansas City 76.61% on time COther routes from Kansas City
Common questions
Are flights from Kansas City to Las Vegas usually delayed?
80.99% of flights on the MCI 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 airline is most on time from Kansas City to Las Vegas?
Spirit Airlines, at 85.66% on time across 273 flights. The least punctual on the route was Southwest Airlines at 80.25%.
How often are MCI to LAS flights cancelled?
0.5% of scheduled flights did not operate — about 5 in every thousand. That is in the normal range.
What is the best month to fly Kansas City to Las Vegas?
January, when 87.3% of flights arrived on time. The worst was April at 72.6%.
When MCI to LAS flights are late, how late are they?
About 49 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 MCI 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 →