Route profile
MEM→MIA
Flight reliability, delays and best times to fly from Memphis to Miami, 859 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 44% of comparable major US routes (4,598 compared)
Calculated from 1,402 flights. How this is calculated · What counts as on time
MEM → MIA arrives on time 82.0% of the time; the return trip, MIA → MEM, arrives on time 61.9% of the time, a 20.1-point gap between the two directions of the same city pair.
MEM → MIA spends 25.9 minutes on the ground on an 859-mile trip: 14.9 minutes from pushback to wheels-up at MEM and 11.0 minutes from touchdown to gate at MIA.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What stands out
On-time performance swings unusually widely by time of day here, wider than 98% of 4,023 comparable routes.
87.8% on time for 5–9 AM departures, against 52.1% for 3–6 PM.
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 4,023 in the comparison.
What sets this route apart
Where MEM to MIA differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
MEM to MIA struggles most at 5 AM: 87.8% of its flights scheduled then arrive on time, 4 points behind the 91.8% on routes of similar length at the same hour. Against all other routes the gap is 4.4 points.
MEM to MIA holds up on Thursdays better than routes of similar length do: 85.6% on time to their 76.4%, a 9.2 points lead. Against all other routes the gap is 8.8 points.
July is kinder to MEM to MIA than to routes of similar length: 81.0% on time against 68.3%, 12.7 points better. Against all other routes the gap is 11.3 points.
American Airlines does better on MEM to MIA than on its routes of similar length: 82.5% on time here, 73.7% there, 8.8 points apart. Against all other routes the gap is 7.4 points.
MEM to MIA against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 5 AM departures | 87.8% | routes of similar length | 91.8% | −4.0 pts | 1,015 here, 89,215 there |
| Weekday: Thursday | 85.6% | routes of similar length | 76.4% | +9.2 pts | 201 here, 389,734 there |
| Month: July | 81.0% | routes of similar length | 68.3% | +12.7 pts | 142 here, 291,567 there |
| Airline: American Airlines | 82.5% | routes of similar length | 73.7% | +8.8 pts | 1,309 here, 411,026 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 859 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
43 min late
against a median of 8 min early
Percentiles over 1,402 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at MIA after arriving from MEM.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 31% | Likely to miss |
| 45 min | 17% | High risk |
| 60 min | 12% | Some risk |
| 90 min | 8.2% | Some risk |
| 120 min | 6.8% | 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 1.57% of the time and diverts 0.36% of the time, which a late arrival never shows up in.
Chance of missing is the share of 1,375 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 43 minutes late (90th-percentile gate arrival delay), over 1,402 operations.
Any other layover length: connection checker.
Best time to fly
MEM → MIA flights departing 5–9 AM arrived on time 87.8% of the time, against 52.1% for 3–6 PM departures, a gap of 35.7 percentage points.
By departure window
By departure hour
- 12 AM to 4 AM: too few flights to score
- 5 AM: 87.8% on time from 1,032 flights
- 6 AM to 5 PM: too few flights to score
- 6 PM: 62.8% on time from 148 flights
- 7 PM to 11 PM: too few flights to score
Why MEM → MIA runs late
July 2023 – July 2026
crew, maintenance, boarding and fueling, all within the carrier’s control
the inbound aircraft was late, so this flight started late
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 MEM → 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 | 1,336 | 82.5% | 1.65% | -8 min | 8.2% |
Flights on this route
Flight numbers with at least 600 operations here and still on the schedule.
| Flight | Scheduled | Operations | On time |
|---|---|---|---|
| AA1340 American Airlines | 5:44 AM | 623 | 88.1% |
Weekly and seasonal patterns
By day of week
Tuesday is historically the most reliable day and Sunday the least, a gap of 13.1 percentage points.
Reliability over time
July 2023 – July 2026
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 79.1% against 81.1% in the 12 months before — declining by 2.0 percentage points.
Data and methodology
Calculated by FlyerIntel from 1,402 MEM → 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