LAS to MCI flight delays & on-time performance
Nonstop flights from Harry Reid International Airport to Kansas City International Airport · 1,139 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at LAS or MCI right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Las Vegas (LAS) to Kansas City (MCI) arrived on time 76% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.7% were cancelled, and 6% arrived an hour or more late.
- Spirit Airlines was the most punctual airline here (86% on time); Southwest Airlines was the least (75%).
- Departures scheduled around 6am did best (94% on time); around 8pm did worst (44%).
- Wednesday was the most reliable day to fly (89% on time) and Friday the least (66%).
- The largest source of delay minutes was late-arriving aircraft (50%).
Which airline is most on time from LAS to MCI?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| American Airlines | 100% | 0.0% | 7 min | 0.0% | 2 |
| Spirit Airlines | 86% | 3.3% | 10 min | 4.7% | 243 |
| Frontier Airlines | 81% | 0.0% | 13 min | 6.3% | 16 |
| Southwest Airlines | 75% | 0.3% | 13 min | 5.7% | 1,731 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am100%31 flights
- 6am94%229 flights
- 7am84%129 flights
- 8am90%158 flights
- 9am86%109 flights
- 10am93%175 flights
- 11am82%65 flights
- 12pm74%139 flights
- 1pm63%89 flights
- 2pm60%107 flights
- 3pm72%153 flights
- 4pm68%129 flights
- 5pm74%163 flights
- 6pm67%127 flights
- 7pm48%99 flights
- 8pm44%74 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday73%1.0% cancelled
- Tuesday86%0.7% cancelled
- Wednesday89%0.0% cancelled
- Thursday75%0.3% cancelled
- Friday66%0.3% cancelled
- Saturday80%1.5% cancelled
- Sunday70%1.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft50%
- Airline (crew, maintenance, cleaning, fueling)39%
- Air traffic control & airport congestion11%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)69%
- Extreme weather23%
- Air traffic control & airport congestion8%
- Security0%
LAS to MCI: common questions
- How often are LAS to MCI flights on time?
- 76% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Las Vegas to Kansas City cancelled?
- 0.7% of scheduled flights were cancelled (13 of 1,992).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 48 min behind schedule on average, and 5.5% of flights were an hour or more late.
- How long is taxi time at LAS?
- Flights on this route spent 16 min taxiing from the gate to takeoff on average.
Related routes
Return trip: MCI to LAS — 81% on time
More flights from Las Vegas
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: LAS → MCI, nonstop flights by US airlines that report to the DOT. How we calculate this.