Route profile
DAL→MIA
Flight reliability, delays and best times to fly from Dallas to Miami, 1,109 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 27% of comparable major US routes (4,598 compared)
Calculated from 1,333 flights. How this is calculated · What counts as on time
DAL → MIA arrives on time 73.9% of the time; the return trip, MIA → DAL, arrives on time 70.9% of the time, a 3.0-point gap between the two directions of the same city pair.
DAL → MIA spends 21.0 minutes on the ground on a 1,109-mile trip: 14.1 minutes from pushback to wheels-up at DAL and 6.9 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 DAL to MIA differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
Tuesday is the day DAL to MIA slips furthest against routes of similar length, 73.9% on time where they average 80.4%, 6.5 points lower. Against all other routes the gap is 7.7 points.
In May, DAL to MIA runs 12.9 points below routes of similar length, 61.2% on time to 74.1%. Against all other routes the gap is 14.1 points.
DAL to MIA against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Weekday: Tuesday | 73.9% | routes of similar length | 80.4% | −6.5 pts | 153 here, 369,837 there |
| Month: May | 61.2% | routes of similar length | 74.1% | −12.9 pts | 121 here, 225,046 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 1,109 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
52 min late
against a median of 2 min early
Percentiles over 1,333 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at MIA after arriving from DAL.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 44% | Likely to miss |
| 45 min | 25% | High risk |
| 60 min | 16% | High risk |
| 90 min | 9.1% | Some risk |
| 120 min | 5.7% | 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 1.35% of the time and diverts 0.38% of the time, which a late arrival never shows up in.
Chance of missing is the share of 1,310 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 52 minutes late (90th-percentile gate arrival delay), over 1,333 operations.
Any other layover length: connection checker.
Best time to fly
DAL → MIA flights departing 5–9 AM arrived on time 83.4% of the time, against 66.3% for 3–6 PM departures, a gap of 17.1 percentage points.
By departure window
By departure hour
- 12 AM to 10 AM: too few flights to score
- 11 AM: 79.6% on time from 217 flights
- 12 PM: 74.4% on time from 203 flights
- 1 PM to 11 PM: too few flights to score
Why DAL → 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 DAL → 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 |
|---|---|---|---|---|---|
| Southwest Airlines | 1,333 | 73.9% | 1.35% | -2 min | 9.3% |
Other ways to fly Dallas–Fort Worth to Miami
Airport pairs in the same two city markets, as the DOT defines them.
| Route | Flights | On time | Cancelled | Median delay | Score |
|---|---|---|---|---|---|
| DFW→MIA Dallas–Fort Worth to Miami | 14,847 | 69.5% | 1.90% | -1 min | 44 |
| DAL→MIA this route Dallas to Miami | 1,333 | 73.9% | 1.35% | -2 min | 56 |
DAL → MIA is the most reliable pairing for this journey at 73.9% on time, against 69.5% for DFW → MIA.
Flying to MIA from the Dallas–Fort Worth area? Compare DAL, DFW for MIA, with the same test for what counts as a real difference.
Weekly and seasonal patterns
By day of week
Saturday is historically the most reliable day and Monday the least, a gap of 5.4 percentage points.
Reliability over time
July 2023 – July 2026
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 70.5% against 72.9% in the 12 months before — declining by 2.4 percentage points.
Data and methodology
Calculated by FlyerIntel from 1,333 DAL → 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