Route profile
BNA→MIA
Flight reliability, delays and best times to fly from Nashville to Miami, 806 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 28% of comparable major US routes (4,598 compared)
Calculated from 7,603 flights. How this is calculated · What counts as on time
BNA → MIA arrives on time 74.9% of the time; the return trip, MIA → BNA, arrives on time 72.1% of the time, a 2.8-point gap between the two directions of the same city pair.
BNA → MIA spends 25.1 minutes on the ground on an 806-mile trip: 16.0 minutes from pushback to wheels-up at BNA and 9.1 minutes from touchdown to gate at MIA.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What sets this route apart
Where BNA to MIA differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
BNA to MIA struggles most at 3 PM: 63.3% of its flights scheduled then arrive on time, 8.5 points behind the 71.8% on routes of similar length at the same hour. Against all other routes the gap is 9.4 points.
BNA to MIA is at its best against routes of similar length for flights scheduled at 8 PM: 73.5% arrive on time, 6.6 points ahead of the 66.9% those routes manage at that hour.
Sunday is the day BNA to MIA slips furthest against routes of similar length, 69.6% on time where they average 74.7%, 5.1 points lower. Against all other routes the gap is 5.2 points.
In March, BNA to MIA runs 7 points below routes of similar length, 71.1% on time to 78.1%. Against all other routes the gap is 6.8 points.
Envoy Air’s flights on BNA to MIA arrive on time 73.2% of the time, 5.6 points below the 78.8% it manages on its routes of similar length. Against all other routes the gap is 6 points.
BNA to MIA against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 3 PM departures | 63.3% | routes of similar length | 71.8% | −8.5 pts | 341 here, 128,333 there |
| Hour: 8 PM departures | 73.5% | routes of similar length | 66.9% | +6.6 pts | 230 here, 111,234 there |
| Weekday: Sunday | 69.6% | routes of similar length | 74.7% | −5.1 pts | 1,130 here, 324,610 there |
| Month: March | 71.1% | routes of similar length | 78.1% | −7.0 pts | 709 here, 182,949 there |
| Airline: Envoy Air | 73.2% | routes of similar length | 78.8% | −5.6 pts | 1,510 here, 26,576 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 806 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.
Why BNA → MIA flights are cancelled
July 2023 – July 2026
BNA → MIA cancelled 101 of 7,603 scheduled flights — about 1 in every 75. The reason filed most often was extreme weather, 73.3% of the cancellations coded on this route — about 1 in every 103 scheduled flights.
Share of cancellations
Of 101 cancelled departures carrying a reason code.
What each reason means
Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.
74 cancellations, 73.3% of the total.
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
18 cancellations, 17.8% of the total.
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
9 cancellations, 8.9% of the total.
A terminal evacuation, a security breach, screening equipment failure, or screening queues over 29 minutes.
0 cancellations, 0.0% of the total.
Reason codes are the operating airline’s own filing with US DOT, not an independent finding of fault. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.
101 coded cancellations were recorded on BNA → MIA; the section appears from 50.
When it goes wrong
July 2023 – July 2026
54 min late
against a median of 4 min early
Percentiles over 7,603 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at MIA after arriving from BNA.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 42% | Likely to miss |
| 45 min | 24% | High risk |
| 60 min | 16% | High risk |
| 90 min | 9.0% | Some risk |
| 120 min | 5.8% | Some 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 1.33% of the time and diverts 0.41% of the time, which a late arrival never shows up in.
Chance of missing is the share of 7,471 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 54 minutes late (90th-percentile gate arrival delay), over 7,603 operations.
Any other layover length: connection checker.
Best time to fly
BNA → MIA flights departing 5–9 AM arrived on time 84.6% of the time, against 63.4% for 6–9 PM departures, a gap of 21.2 percentage points.
By departure window
By departure hour
- 12 AM to 4 AM: too few flights to score
- 5 AM: 85.6% on time from 874 flights
- 6 AM: 88.3% on time from 351 flights
- 7 AM: 82.4% on time from 1,191 flights
- 8 AM: 87.4% on time from 196 flights
- 9 AM: 84.1% on time from 294 flights
- 10 AM: 81.1% on time from 701 flights
- 11 AM: 77.1% on time from 609 flights
- 12 PM: 74.6% on time from 120 flights
- 1 PM: 70.1% on time from 181 flights
- 2 PM: too few flights to score
- 3 PM: 63.3% on time from 349 flights
- 4 PM: 64.7% on time from 429 flights
- 5 PM: 67.1% on time from 510 flights
- 6 PM: 62.3% on time from 1,101 flights
- 7 PM: 59.1% on time from 246 flights
- 8 PM: 73.5% on time from 232 flights
- 9 PM to 11 PM: too few flights to score
Why BNA → MIA runs late
July 2023 – July 2026
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding and fueling, all within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for BNA → MIA. Only delays of 15 minutes or more are attributed. What the five causes mean
Late-arriving aircraft is the largest cause on BNA → MIA, at 51.5%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 84.6% of the time and 6–9 PM departures 63.4%.
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 | 3,595 | 75.7% | 1.31% | -5 min | 10.0% |
| Southwest Airlines | 2,051 | 75.5% | 0.93% | -3 min | 7.0% |
| Envoy Air | 1,540 | 73.2% | 1.56% | -2 min | 9.5% |
| Spirit Airlines | 348 | 71.6% | 2.87% | -7 min | 11.2% |
American Airlines flew 47.7% of the 7,534 flights listed. Spirit Airlines cancelled 2.87% of its flights here against 0.93% for Southwest Airlines.
American Airlines arrived on time 4.1 percentage points more often than Spirit Airlines on this route.
Flights on this route
Flight numbers with at least 600 operations here and still on the schedule.
| Flight | Scheduled | Operations | On time |
|---|---|---|---|
| AA1342 American Airlines | 6:00 AM | 628 | 85.6% |
Weekly and seasonal patterns
By day of week
Tuesday is historically the most reliable day and Sunday the least, a gap of 12.5 percentage points.
By month
- Jan: 73.2%
- Feb: 79.0%
- Mar: 71.1%
- Apr: 81.4%
- May: 72.9%
- Jun: 66.9%
- Jul: 65.3%
- Aug: 71.1%
- Sep: 77.0%
- Oct: 83.1%
- Nov: 82.9%
- Dec: 77.4%
July is historically the weakest month and October the strongest, a spread of 17.8 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 65.6% from 181 flights
- August 2023: 68.9% from 183 flights
- September 2023: 69.1% from 179 flights
- October 2023: 84.1% from 210 flights
- November 2023: 85.6% from 209 flights
- December 2023: 71.8% from 234 flights
- January 2024: 67.5% from 248 flights
- February 2024: 77.7% from 224 flights
- March 2024: 71.1% from 282 flights
- April 2024: 88.1% from 228 flights
- May 2024: 69.6% from 226 flights
- June 2024: 67.3% from 216 flights
- July 2024: 70.4% from 191 flights
- August 2024: 71.1% from 204 flights
- September 2024: 78.0% from 170 flights
- October 2024: 85.4% from 189 flights
- November 2024: 87.7% from 179 flights
- December 2024: 81.5% from 174 flights
- January 2025: 77.0% from 213 flights
- February 2025: 79.8% from 196 flights
- March 2025: 72.3% from 227 flights
- April 2025: 75.7% from 174 flights
- May 2025: 75.6% from 180 flights
- June 2025: 66.7% from 173 flights
- July 2025: 61.8% from 176 flights
- August 2025: 73.1% from 189 flights
- September 2025: 83.7% from 187 flights
- October 2025: 79.9% from 205 flights
- November 2025: 75.8% from 209 flights
- December 2025: 80.3% from 214 flights
- January 2026: 75.7% from 241 flights
- February 2026: 79.8% from 208 flights
- March 2026: 69.9% from 227 flights
- April 2026: 79.1% from 216 flights
- May 2026: 74.0% from 227 flights
- June 2026: 66.7% from 205 flights
- July 2026: 63.3% from 209 flights
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 75.0% against 76.0% in the 12 months before — broadly unchanged.
Data and methodology
Calculated by FlyerIntel from 7,603 BNA → 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