Historical on-time performance
Las Vegas to Kansas City
1,140 miData through Dec 2025Source: US DOT · BTS
Flights on LAS–MCI arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 1,686 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Spirit AirlinesbestOn-time100%Medianon timep90on timeCancel0.0%Flights36
- Southwest AirlinesOn-time78%Medianon timep9035 minCancel0.6%Flights1,650
Why flights run late
Delay causes
- Airline39%
- Weather2%
- Air traffic (NAS)11%
- Late aircraft48%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly LAS → MCI
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 91% on time.
- Mornings91% on time · p90 10 min · 2,106 flights
- Early mornings82% on time · p90 25 min · 315 flights
- Middays74% on time · p90 35 min · 1,089 flights
- Afternoons70% on time · p90 50 min · 962 flights
- Evenings63% on time · p90 70 min · 1,121 flights
- Overnights62% on time · p90 60 min · 480 flights
Best day of week
Saturdays are the most reliable day to fly this route — 86% on time.
- Saturdays86% on time · p90 20 min · 681 flights
- Wednesdays81% on time · p90 25 min · 831 flights
- Tuesdays80% on time · p90 30 min · 826 flights
- Mondays76% on time · p90 35 min · 961 flights
- Fridays73% on time · p90 55 min · 938 flights
- Sundays72% on time · p90 45 min · 925 flights
- Thursdays71% on time · p90 50 min · 911 flights
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