Route profile
MIA→DAL
Flight reliability, delays and best times to fly from Miami to Dallas, 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 21% of comparable major US routes (4,598 compared)
Calculated from 1,335 flights. How this is calculated
MIA → DAL arrives on time 70.9% of the time; the return trip, DAL → MIA, arrives on time 73.9% of the time, a 3.0-point gap between the two directions of the same city pair.
MIA → DAL spends 24.5 minutes on the ground on a 1,109-mile trip: 18.7 minutes from pushback to wheels-up at MIA and 5.8 minutes from touchdown to gate at DAL.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What stands out
Which day you fly matters unusually much here, a wider weekday spread than 100% of 4,467 comparable routes.
82.5% on time on a typical Tuesday, against 60.1% on a Saturday.
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 4,467 in the comparison.
What sets this route apart
Where MIA to DAL differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
MIA to DAL struggles most at 12 PM: 67.4% of its flights scheduled then arrive on time, 10.4 points behind the 77.8% on routes of similar length at the same hour. Against all other routes the gap is 12 points.
Saturday is the day MIA to DAL slips furthest against routes of similar length, 60.1% on time where they average 77.1%, 17 points lower. Against all other routes the gap is 19 points.
In March, MIA to DAL runs 12.9 points below routes of similar length, 62.3% on time to 75.2%. Against all other routes the gap is 15.6 points.
Southwest Airlines’ flights on MIA to DAL arrive on time 70.9% of the time, 4.5 points below the 75.4% it manages on its routes of similar length. Against all other routes the gap is 6.5 points.
MIA to DAL against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 12 PM departures | 67.4% | routes of similar length | 77.8% | −10.4 pts | 178 here, 161,793 there |
| Weekday: Saturday | 60.1% | routes of similar length | 77.1% | −17.0 pts | 273 here, 363,827 there |
| Month: March | 62.3% | routes of similar length | 75.2% | −12.9 pts | 130 here, 241,952 there |
| Airline: Southwest Airlines | 70.9% | routes of similar length | 75.4% | −4.5 pts | 1,313 here, 615,258 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
60 min late
against a median of 2 min early
MIA → DAL has an average that understates its risk: a typical arrival is 2 min early, but the worst tenth are 62 minutes worse than that. If the trip has something unmissable at the end of it, the median is the wrong number to plan against.
Percentiles over 1,335 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at DAL after arriving from MIA.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 45% | Likely to miss |
| 45 min | 28% | High risk |
| 60 min | 19% | High risk |
| 90 min | 9.7% | Some risk |
| 120 min | 5.5% | 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 1.12% of the time and diverts 0.52% of the time, which a late arrival never shows up in.
Chance of missing is the share of 1,313 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 60 minutes late (90th-percentile gate arrival delay), over 1,335 operations.
Any other layover length: connection checker.
Best time to fly
MIA → DAL flights departing 5–9 AM arrived on time 91.0% of the time, against 52.9% for 3–6 PM departures, a gap of 38.1 percentage points.
By departure window
By departure hour
- 12 AM to 11 AM: too few flights to score
- 12 PM: 67.4% on time from 181 flights
- 1 PM: 73.0% on time from 190 flights
- 2 PM: 72.8% on time from 148 flights
- 3 PM to 11 PM: too few flights to score
Departure windows with fewer than 120 flights are not scored.
Why MIA → DAL runs late
July 2023 – July 2026
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
crew, maintenance, boarding and fueling, all within the carrier’s 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 MIA → DAL. Only delays of 15 minutes or more are attributed.
Late-arriving aircraft is the largest cause on MIA → DAL, at 49.3%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 91.0% of the time and 3–6 PM departures 52.9%.
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 | 1,335 | 70.9% | 1.12% | -2 min | 10.1% |
Other ways to fly Miami to Dallas–Fort Worth
Airport pairs in the same two city markets, as the DOT defines them.
| Route | Flights | On time | Cancelled | Median delay | Score |
|---|---|---|---|---|---|
| MIA→DFW Miami to Dallas–Fort Worth | 14,840 | 71.3% | 1.91% | -2 min | 45 |
| MIA→DAL this route Miami to Dallas | 1,335 | 70.9% | 1.12% | -2 min | 53 |
MIA → DAL is the most reliable pairing for this journey at 70.9% on time, against 71.3% for MIA → DFW.
Flying to DAL from the Miami area? Compare MIA, FLL for DAL, with the same test for what counts as a real difference.
Weekly and seasonal patterns
By day of week
Tuesday is historically the most reliable day and Saturday the least, a gap of 22.4 percentage points.
Reliability over time
July 2023 – July 2026
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 69.4% against 74.4% in the 12 months before — declining by 5.0 percentage points.
Data and methodology
Calculated by FlyerIntel from 1,335 MIA → DAL 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