MCI to MIA flight delays & on-time performance
Nonstop flights from Kansas City International Airport to Miami International Airport · 1,251 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at MCI or MIA right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Kansas City (MCI) to Miami (MIA) arrived on time 84% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.4% were cancelled, and 5% arrived an hour or more late.
- American Airlines was the most punctual airline here (90% on time); Southwest Airlines was the least (73%).
- Departures scheduled around 5am did best (90% on time); around 2pm did worst (45%).
- Wednesday was the most reliable day to fly (90% on time) and Sunday the least (77%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (53%).
Which airline is most on time from MCI to MIA?
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 | 90% | 2.0% | 13 min | 4.9% | 460 |
| Envoy AirRegional airline operating American Eagle flights. | 82% | 1.1% | 9 min | 2.7% | 184 |
| Southwest Airlines | 73% | 0.5% | 14 min | 5.8% | 191 |
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 56% | 0.0% | 15 min | 0.0% | 9 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am90%365 flights
- 6am100%17 flights
- 7am86%61 flights
- 8am73%11 flights
- 9am82%50 flights
- 10am84%32 flights
- 11am83%128 flights
- 1pm65%17 flights
- 2pm45%29 flights
- 5pm79%121 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday85%5.5% cancelled
- Tuesday88%2.9% cancelled
- Wednesday90%1.0% cancelled
- Thursday85%0.0% cancelled
- Friday84%0.0% cancelled
- Saturday81%0.0% cancelled
- Sunday77%0.8% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)53%
- Late-arriving aircraft29%
- Air traffic control & airport congestion15%
- Extreme weather3%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather67%
- Air traffic control & airport congestion25%
- Airline (crew, maintenance, cleaning, fueling)8%
- Security0%
MCI to MIA: common questions
- How often are MCI to MIA flights on time?
- 84% 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 Kansas City to Miami cancelled?
- 1.4% of scheduled flights were cancelled (12 of 844).
- How long are typical delays?
- Across all flights the average arrival delay was 13 min (early arrivals count as zero). Flights that were late arrived 74 min behind schedule on average, and 4.6% of flights were an hour or more late.
- How long is taxi time at MCI?
- Flights on this route spent 16 min taxiing from the gate to takeoff on average.
Related routes
Return trip: MIA to MCI — 73% on time
More flights from Kansas City
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: MCI → MIA, nonstop flights by US airlines that report to the DOT. How we calculate this.