Southwest Airlines MCI to LAS on-time performance
Southwest Airlines nonstop flights from Kansas City to Las Vegas · Aug 2025 – Jul 2026
On-time arrivals
81%
arrived < 15 min late
Cancelled
0.2%
4 flights
Avg arrival delay
10 min
45 min when late
Rank on route
#3 of 4
route average 81% on time
Key facts
- Southwest Airlines flights on MCI to LAS arrived on time 81% of the time in Aug 2025 – Jul 2026.
- 0.2% were cancelled, and 4% arrived an hour or more late.
- That ranks #3 of 4 airlines on this route, which averaged 81% on time overall.
- The largest source of delay minutes was late-arriving aircraft (52%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft52%
- Air traffic control & airport congestion21%
- Airline (crew, maintenance, cleaning, fueling)20%
- Extreme weather4%
- Security3%
Other airlines on MCI to LAS
- Spirit Airlines85% on time · 11 min avg delay
- Frontier Airlines75% on time · 11 min avg delay
- American Airlines100% on time · 6 min avg delay
Full MCI to LAS comparison →
Southwest Airlines on-time record across all routes →
1,745 Southwest Airlines flights tracked on this route; 4 cancelled, 2 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.