DFW → MIA Flight Reliability

Right now

Origin · DFWNo disruption reported

Aviation weather is not currently a factor.

Updated 07:53 UTC

Dallas–Fort Worth airport profile →

Destination · MIANo disruption reported

Aviation weather is not currently a factor.

Updated 07:53 UTC

Miami airport profile →

Route reliability

July 2023 – July 2026

Route Reliability Score

44/ 100Weak

Better than 8% of comparable major US routes (4,598 compared)

Calculated from 14,847 flights. How this is calculated

On-time arrivals

69.5%

10,088 of 14,521

Cancellation rate

1.90%

282 cancelled

Median arrival delay

-1 min

Average 16.4 min

Severe delays

11.5%

60+ minutes late

Delay when late

74 min

Average, when 15+ min late

Flights analyzed

14,847

3 carriers

DFW → MIA arrives on time 69.5% of the time; the return trip, MIA → DFW, arrives on time 71.3% of the time.

DFW → MIA spends 29.0 minutes on the ground on a 1,121-mile trip: 19.0 minutes from pushback to wheels-up at DFW and 10.1 minutes from touchdown to gate at MIA.

Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026

Why DFW → MIA flights are cancelled

July 2023 – July 2026

DFW → MIA cancelled 282 of 14,847 scheduled flights — about 1 in every 53. The reason filed most often was extreme weather, 85.8% of the cancellations coded on this route — about 1 in every 61 scheduled flights.

Share of cancellations

Weather85.8%

Airline12.1%

Air traffic2.1%

Security0.0%

Of 282 cancelled departures carrying a reason code.

What each reason means

Extreme weather1 in 61

Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.

242 cancellations, 85.8% of the total.

The airline1 in 437

Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.

34 cancellations, 12.1% of the total.

The air traffic system1 in 2,475

Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.

6 cancellations, 2.1% of the total.

Security—

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.

282 coded cancellations were recorded on DFW → MIA; the section appears from 50.

When it goes wrong

July 2023 – July 2026

One arrival in ten is worse than

67 min late

against a median of 1 min early

Arrived an hour or more late11.5%

Typical delay when late74 min

Cancelled1.90%

Landed somewhere else0.30%

DFW → MIA has an average that understates its risk: a typical arrival is 1 min early, but the worst tenth are 68 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 14,847 operations; cancelled and diverted flights are counted separately.

Will your connection be tight enough?

Layovers at MIA after arriving from DFW.

Connection buffer and chance of missing by layover length, DFW → MIA arrivals
Connection time	Chance of missing	Reads as
30 min	47%	Likely to miss
45 min	30%	High risk
60 min	20%	High risk
90 min	11%	Some risk
120 min	6.9%	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 1.90% of the time and diverts 0.30% of the time, which a late arrival never shows up in.

Chance of missing is the share of 14,521 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 67 minutes late (90th-percentile gate arrival delay), over 14,847 operations.

Any other layover length: connection checker.

Best time to fly

DFW → MIA flights departing 5–9 AM arrived on time 80.9% of the time, against 56.3% for 9 PM–5 AM departures, a gap of 24.6 percentage points.

By day and hour

On-time arrival rate for each weekday and scheduled departure hour, in local time at the departure airport (DFW).

Hour of departure matters more than day of the week: hourly averages sit a typical 10.0 points from the route-wide rate, weekday averages 1.9 points.

On-time arrival rate for DFW to MIA by weekday and scheduled departure hour, local time. Each button reads out one slot.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
5 AM–6 AM
6 AM–7 AM
7 AM–8 AM
8 AM–9 AM
9 AM–10 AM
10 AM–11 AM
11 AM–12 PM
12 PM–1 PM
1 PM–2 PM
2 PM–3 PM
3 PM–4 PM
4 PM–5 PM
5 PM–6 PM
6 PM–7 PM
7 PM–8 PM
8 PM–9 PM

On-time rate, % · stronger color, fewer on time

40–49
50–59
60–69
70–79
80–89

Fewer than 120 flights, not scored

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · On time is arrival within 15 minutes of schedule. Cells round to whole percentages; the table shows one decimal.

No slot is named best or worst: too few reach 500 flights. Departures after 9 PM (271 flights) are not drawn: no slot in those hours has enough flights to score.

View as tableHide table

On-time arrival rate (%) with flights beneath, by scheduled departure hour and weekday for DFW to MIA. A dash means fewer than 120 flights, which are not scored.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
5 AM–6 AM	86.3% on time186 flights	81.6% on time176 flights	82.9% on time172 flights	85.4% on time201 flights	86.9% on time188 flights	80.2% on time187 flights	81.6% on time198 flights
6 AM–7 AM	81.1% on time163 flights	83.8% on time156 flights	81.6% on time150 flights	86.0% on time166 flights	81.7% on time165 flights	75.2% on time151 flights	85.9% on time168 flights
7 AM–8 AM	72.4% on time176 flights	83.9% on time170 flights	83.5% on time176 flights	76.8% on time169 flights	79.2% on time175 flights	76.7% on time181 flights	78.1% on time181 flights
8 AM–9 AM	77.8% on time165 flights	77.4% on time159 flights	76.6% on time155 flights	78.0% on time161 flights	82.7% on time170 flights	77.6% on time165 flights	81.6% on time165 flights
9 AM–10 AM	41 flights, too few to score	34 flights, too few to score	39 flights, too few to score	37 flights, too few to score	45 flights, too few to score	42 flights, too few to score	32 flights, too few to score
10 AM–11 AM	79.5% on time180 flights	80.1% on time178 flights	75.9% on time177 flights	77.6% on time176 flights	75.0% on time173 flights	77.1% on time177 flights	72.6% on time177 flights
11 AM–12 PM	15 flights, too few to score	20 flights, too few to score	15 flights, too few to score	13 flights, too few to score	26 flights, too few to score	7 flights, too few to score	10 flights, too few to score
12 PM–1 PM	65.9% on time165 flights	73.5% on time165 flights	72.3% on time164 flights	69.1% on time168 flights	66.1% on time167 flights	68.6% on time160 flights	70.2% on time166 flights
1 PM–2 PM	39 flights, too few to score	37 flights, too few to score	48 flights, too few to score	38 flights, too few to score	36 flights, too few to score	28 flights, too few to score	46 flights, too few to score
2 PM–3 PM	59.9% on time153 flights	66.7% on time146 flights	63.2% on time148 flights	56.4% on time145 flights	56.5% on time149 flights	64.9% on time154 flights	61.8% on time147 flights
3 PM–4 PM	62 flights, too few to score	68 flights, too few to score	70 flights, too few to score	57 flights, too few to score	67 flights, too few to score	63 flights, too few to score	54 flights, too few to score
4 PM–5 PM	61.0% on time156 flights	71.1% on time144 flights	60.5% on time149 flights	61.4% on time146 flights	60.3% on time150 flights	55.2% on time151 flights	62.6% on time149 flights
5 PM–6 PM	63.2% on time136 flights	72.9% on time121 flights	68.9% on time136 flights	59.7% on time136 flights	67.3% on time148 flights	66.4% on time145 flights	68.6% on time146 flights
6 PM–7 PM	66.9% on time183 flights	63.8% on time156 flights	62.9% on time154 flights	54.4% on time153 flights	60.9% on time165 flights	52.5% on time164 flights	57.3% on time146 flights
7 PM–8 PM	52.1% on time145 flights	118 flights, too few to score	60.5% on time127 flights	57.1% on time130 flights	60.3% on time135 flights	60.4% on time139 flights	52.4% on time134 flights
8 PM–9 PM	56.2% on time173 flights	57.6% on time151 flights	55.3% on time158 flights	54.4% on time190 flights	57.9% on time175 flights	49.4% on time161 flights	51.7% on time187 flights

By departure window

5–9 AM80.9%

9 AM–12 PM76.1%

12–3 PM66.4%

3–6 PM62.6%

6–9 PM57.6%

9 PM–5 AM56.3%

By departure hour

12 AM

3 AM

6 AM

9 AM

12 PM

3 PM

6 PM

9 PM

Why DFW → MIA runs late

July 2023 – July 2026

Late-arriving aircraft38.1%

the inbound aircraft was late, so this flight started late

The airline35.2%

crew, maintenance, boarding and fueling, all within the carrier’s control

Air traffic control19.4%

airspace and airport capacity, including weather-driven flow control

Weather7.1%

weather severe enough to stop this flight specifically

Security0.2%

screening or terminal security incidents

Share of the delay minutes US DOT attributed to each cause for DFW → MIA. Only delays of 15 minutes or more are attributed.

Late-arriving aircraft is the largest cause on DFW → MIA, at 38.1%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 80.9% of the time and 9 PM–5 AM departures 56.3%.

How this route holds up in bad weather

July 2023 – July 2026

The harder-hit end is the one the flight leaves from, where a cancellation keeps it from departing at all. Bad weather cancels 7.0 times the normal rate at DFW against 3.3 times at MIA. Cancelled in bad weather against normal hours: DFW 10.4% against 1.5%, MIA 4.5% against 1.3%. Flights that did leave MIA in bad weather arrived on time 50.6% of the time, against 74.1% in normal hours.

Bad weather and normal hours at the airports

Scheduled departures, July 2023 – July 2026

Departures from DFW and MIA in hours of bad weather and in normal hours
Departures from	DFW	MIA
Cancelled in bad weather	10.4%	4.5%
Cancelled in normal hours	1.5%	1.3%
Arrived on time, bad weather	56.4%	50.6%
Arrived on time, normal hours	74.4%	74.1%
Departures in bad weather	72,822	15,746

Frontier Airlines (5.9% cancelled against 10.5% for the other carriers at DFW) and Spirit Airlines (5.4% cancelled against 9.9% for the other carriers at DFW) cancelled fewer departures from DFW in bad weather than the other carriers there did in the same months. None of the route’s other carriers was clearly worse.

This route’s airlines in bad weather at DFW

All departures from DFW

Cancellation rates in bad weather at DFW for the airlines that fly DFW to MIA, against the other carriers at DFW in the same months
Airline	Bad-weather departures	Cancelled	Other carriers
Frontier Airlines	2,192	5.9%below the others	10.5%
Spirit Airlines	1,826	5.4%below the others	9.9%
American Airlines	38,491	10.0%about level	10.9%

These are airport figures, not route figures: every scheduled departure from DFW and MIA, to any destination, in hours the weather report called bad. The airline rows count each carrier’s departures from DFW on every route.

Weather source and limits. In full: DFW (airlines), MIA, What Weather Costs Each Airport, Who Cancels More When the Weather Turns, Airports That Change Places When Weather Turns.

Airlines on this route

Carriers with at least 200 flights, by the airline that operated each one.

Airlines on this route
Carrier	Flights	On time	Cancelled	Median delay	Severe
American Airlines	12,850	69.4%	1.87%	-1 min	11.4%
Spirit Airlines	1,271	75.5%	1.57%	-7 min	9.4%
Frontier Airlines	725	59.9%	3.03%	3 min	16.5%

American Airlines flew 86.6% of the 14,846 flights listed. Frontier Airlines cancelled 3.03% of its flights here against 1.57% for Spirit Airlines.

Spirit Airlines arrived on time 15.6 percentage points more often than Frontier Airlines on this route.

Flights on this route

Flight numbers with at least 600 operations here and still on the schedule.

Flights on this route
Flight	Scheduled	Operations	On time
AA2206 American Airlines	6:55 PM	805	60.3%

Weekly and seasonal patterns

By day of week

Mon68.5%

Tue73.1%

Wed70.7%

Thu68.7%

Fri70.2%

Sat66.8%

Sun68.4%

Tuesday is historically the most reliable day and Saturday the least, a gap of 6.3 percentage points.

By month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

July is historically the weakest month and November the strongest, a spread of 18.5 percentage points.

Reliability over time

July 2023 – July 2026

24

25

26

Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 68.3% against 70.5% in the 12 months before — declining by 2.2 percentage points.

Data and methodology

Calculated by FlyerIntel from 14,847 DFW → 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

Analysis last recomputed September 26, 2026

DFW airport MIA airport Return direction MIA → DFW

DFW→MIA

Right now

Route reliability

Why DFW → MIA flights are cancelled

Share of cancellations

What each reason means

When it goes wrong

Will your connection be tight enough?

Best time to fly

By day and hour

By departure window

By departure hour

Why DFW → MIA runs late

How this route holds up in bad weather

Bad weather and normal hours at the airports

This route’s airlines in bad weather at DFW

Airlines on this route

Flights on this route

Weekly and seasonal patterns

By day of week

By month

Reliability over time

Data and methodology