Route Reliability
Las Vegas → Kansas City
LAS–MCI · 1,139 miles · Harry Reid International Airport to Kansas City International Airport
- 78%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 0.7%
- Cancelled
- 1,985
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Spirit Airlines86%296 flights
- 2.Southwest Airlines77%1,687 flights
Not enough history to rank: American Airlines (2 flights). We rank airlines only after 100 flights on the route.
What the data says
Morning flights do better here.
LAS–MCI flights departing between 3–6 AM arrived on time 100% of the time, versus 40% between 9 PM–12 AM.
Sunday scaries are real for this one.
LAS–MCI flights arrived on time 88% of the time on Wednesdays and just 72% on Sundays. That gap is worth planning around.
Spirit Airlines runs this route best.
Spirit Airlines arrived on time 86% of the time on this route; Southwest Airlines managed 77%.
Recent months have been rougher.
LAS–MCI flights arrived on time 73% of the time over the last three months in the data, compared with 83% in the three months before that.
Flights on this route
The breakdown
- Mon75%(305 flights)
- Tue86%(270 flights)
- Wed88%(263 flights)
- Thu78%(302 flights)
- Fri72%(306 flights)
- Sat81%(206 flights)
- Sun72%(307 flights)
- 3–6 AM100%(54 flights)
- 6–9 AM92%(507 flights)
- 9 AM–12 PM87%(329 flights)
- 12–3 PM67%(355 flights)
- 3–6 PM73%(414 flights)
- 6–9 PM63%(285 flights)
- 9 PM–12 AM40%(15 flights)
Jun 79% → May 71% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 79% | 155 |
| July 2025 | 70% | 158 |
| August 2025 | 83% | 158 |
| September 2025 | 78% | 148 |
| October 2025 | 81% | 182 |
| November 2025 | 82% | 167 |
| December 2025 | 79% | 172 |
| January 2026 | 85% | 167 |
| February 2026 | 84% | 154 |
| March 2026 | 70% | 177 |
| April 2026 | 78% | 167 |
| May 2026 | 71% | 154 |
Keep nerding
Based on 1,985 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.