Route profile
MCI→MIA
Flight reliability, delays and best times to fly from Kansas City to Miami, 1,251 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 70% of comparable major US routes (4,598 compared)
Calculated from 1,879 flights. How this is calculated · What counts as on time
MCI → MIA arrives on time 83.3% of the time; the return trip, MIA → MCI, arrives on time 68.4% of the time, a 14.9-point gap between the two directions of the same city pair.
MCI → MIA spends 26.2 minutes on the ground on a 1,251-mile trip: 16.7 minutes from pushback to wheels-up at MCI and 9.5 minutes from touchdown to gate at MIA.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What stands out
This route has stayed remarkably steady year over year, a smaller swing than 95% of 5,368 comparable routes.
83.9% on time over the most recent 12 months (2025-08 to 2026-07), against 83.6% in the 12 months before (2024-08 to 2025-07), virtually unchanged.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Ranked against every other route with the same kind of figure and at least 5,368 in the comparison.
What sets this route apart
Where MCI to MIA differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
MCI to MIA is at its best against routes of similar length for flights scheduled at 5 PM: 76.3% arrive on time, 8.3 points ahead of the 68.0% those routes manage at that hour.
MCI to MIA struggles most at 7 AM: 80.9% of its flights scheduled then arrive on time, 7.3 points behind the 88.2% on routes of similar length at the same hour. Against all other routes the gap is 6.9 points.
MCI to MIA holds up on Thursdays better than routes of similar length do: 85.8% on time to their 76.0%, a 9.8 points lead. Against all other routes the gap is 9 points.
July is kinder to MCI to MIA than to routes of similar length: 84.1% on time against 68.8%, 15.3 points better. Against all other routes the gap is 14.4 points.
American Airlines does better on MCI to MIA than on its routes of similar length: 86.6% on time here, 74.7% there, 11.9 points apart. Against all other routes the gap is 11.5 points.
MCI to MIA against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 5 PM departures | 76.3% | routes of similar length | 68.0% | +8.3 pts | 135 here, 115,056 there |
| Hour: 7 AM departures | 80.9% | routes of similar length | 88.2% | −7.3 pts | 173 here, 160,285 there |
| Weekday: Thursday | 85.8% | routes of similar length | 76.0% | +9.8 pts | 268 here, 276,084 there |
| Month: July | 84.1% | routes of similar length | 68.8% | +15.3 pts | 208 here, 201,863 there |
| Airline: American Airlines | 86.6% | routes of similar length | 74.7% | +11.9 pts | 1,195 here, 411,343 there |
Each comparison pools the flights of other routes, with this route’s own left out. Similar length means within 15% of this route’s 1,251 miles, with at least 5 such routes. A bucket is set against the most comparable group that has enough flights: similar length, then the same origin (at least 3 routes), then all other routes. Hours, weekdays and months appear only where both sides have 120 completed flights, and airlines where both have 600. The gap must be at least 2 points and 2 standard errors, and only the largest gap each way is kept per measure. These are differences in the flights counted, not causes.
When it goes wrong
July 2023 – July 2026
29 min late
against a median of 8 min early
Percentiles over 1,879 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at MIA after arriving from MCI.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 31% | Likely to miss |
| 45 min | 16% | High risk |
| 60 min | 9.4% | Some risk |
| 90 min | 4.7% | Low risk |
| 120 min | 3.1% | Low risk |
This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 1.65% of the time and diverts 0.32% of the time, which a late arrival never shows up in.
Chance of missing is the share of 1,842 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.
The worst tenth of arrivals on this route land at least 29 minutes late (90th-percentile gate arrival delay), over 1,879 operations.
Any other layover length: connection checker.
Best time to fly
MCI → MIA flights departing 5–9 AM arrived on time 86.2% of the time, against 75.0% for 3–6 PM departures, a gap of 11.2 percentage points.
By departure window
By departure hour
- 12 AM to 4 AM: too few flights to score
- 5 AM: 87.0% on time from 1,125 flights
- 6 AM: too few flights to score
- 7 AM: 80.9% on time from 176 flights
- 8 AM to 10 AM: too few flights to score
- 11 AM: 84.5% on time from 194 flights
- 12 PM to 4 PM: too few flights to score
- 5 PM: 76.3% on time from 138 flights
- 6 PM to 11 PM: too few flights to score
Departure windows with fewer than 120 flights are not scored.
Why MCI → MIA runs late
July 2023 – July 2026
crew, maintenance, boarding and fueling, all within the carrier’s control
airspace and airport capacity, including weather-driven flow control
the inbound aircraft was late, so this flight started late
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for MCI → MIA. Only delays of 15 minutes or more are attributed. What the five causes mean
Airlines on this route
Carriers with at least 200 flights, by the airline that operated each one.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| American Airlines | 1,224 | 86.6% | 1.96% | -9 min | 5.0% |
| Envoy Air | 338 | 80.4% | 1.78% | -7 min | 3.3% |
| Southwest Airlines | 308 | 74.5% | 0.32% | -6 min | 5.6% |
American Airlines flew 65.5% of the 1,870 flights listed. American Airlines cancelled 1.96% of its flights here against 0.32% for Southwest Airlines.
American Airlines arrived on time 12.1 percentage points more often than Southwest Airlines on this route.
Weekly and seasonal patterns
By day of week
Tuesday is historically the most reliable day and Sunday the least, a gap of 8.3 percentage points.
Reliability over time
July 2023 – July 2026
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 83.9% against 83.6% in the 12 months before — broadly unchanged.
Data and methodology
Calculated by FlyerIntel from 1,879 MCI → MIA flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.
Full methodology · Data sources · Report a problem
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed