MIA → DFW Flight Reliability

Right now

Origin · MIANo disruption reported

Aviation weather is not currently a factor.

Updated 07:53 UTC

Miami airport profile →

Destination · DFWNo disruption reported

Aviation weather is not currently a factor.

Updated 07:53 UTC

Dallas–Fort Worth airport profile →

Route reliability

July 2023 – July 2026

Route Reliability Score

45/ 100Fair

Better than 9% of comparable major US routes (4,598 compared)

Calculated from 14,840 flights. How this is calculated

On-time arrivals

71.3%

10,317 of 14,472

Cancellation rate

1.91%

284 cancelled

Median arrival delay

-2 min

Average 15.5 min

Severe delays

11.4%

60+ minutes late

Delay when late

78 min

Average, when 15+ min late

Flights analyzed

14,840

3 carriers

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

MIA → DFW spends 35.3 minutes on the ground on a 1,121-mile trip: 20.4 minutes from pushback to wheels-up at MIA and 14.9 minutes from touchdown to gate at DFW.

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

Why MIA → DFW flights are cancelled

July 2023 – July 2026

MIA → DFW cancelled 284 of 14,840 scheduled flights — about 1 in every 52. The reason filed most often was extreme weather, 87.3% of the cancellations coded on this route — about 1 in every 60 scheduled flights.

Share of cancellations

Weather87.3%

Airline10.6%

Air traffic2.1%

Security0.0%

Of 284 cancelled departures carrying a reason code.

What each reason means

Extreme weather1 in 60

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

248 cancellations, 87.3% of the total.

The airline1 in 495

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

30 cancellations, 10.6% of the total.

The air traffic system1 in 2,473

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.

284 coded cancellations were recorded on MIA → DFW; 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 2 min early

Arrived an hour or more late11.4%

Typical delay when late78 min

Cancelled1.91%

Landed somewhere else0.57%

MIA → DFW has an average that understates its risk: a typical arrival is 2 min early, but the worst tenth are 69 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 14,840 operations; cancelled and diverted flights are counted separately.

Will your connection be tight enough?

Layovers at DFW after arriving from MIA.

Connection buffer and chance of missing by layover length, MIA → DFW arrivals
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	11%	Some risk
120 min	7.1%	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 1.91% of the time and diverts 0.57% of the time, which a late arrival never shows up in.

Chance of missing is the share of 14,472 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 14,840 operations.

Any other layover length: connection checker.

Best time to fly

MIA → DFW flights departing 5–9 AM arrived on time 84.5% of the time, against 59.5% for 6–9 PM departures, a gap of 25.0 percentage points.

By day and hour

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

Hour of departure matters more than day of the week: hourly averages sit a typical 10.8 points from the route-wide rate, weekday averages 2.8 points.

On-time arrival rate for MIA to DFW 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
9 PM–10 PM

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

40–49
50–59
60–69
70–79
80–89
90–99

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 10 PM (323 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 MIA to DFW. A dash means fewer than 120 flights, which are not scored.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
5 AM–6 AM	88.9% on time167 flights	90.3% on time159 flights	90.5% on time161 flights	88.0% on time159 flights	90.1% on time167 flights	86.6% on time164 flights	85.3% on time160 flights
6 AM–7 AM	89.1% on time153 flights	84.8% on time135 flights	83.9% on time140 flights	84.4% on time148 flights	89.3% on time153 flights	83.7% on time175 flights	83.4% on time146 flights
7 AM–8 AM	86.1% on time155 flights	82.8% on time148 flights	83.8% on time152 flights	86.8% on time151 flights	77.2% on time153 flights	82.2% on time155 flights	77.3% on time151 flights
8 AM–9 AM	80.9% on time142 flights	84.8% on time141 flights	82.4% on time150 flights	80.6% on time137 flights	83.9% on time137 flights	81.5% on time138 flights	75.4% on time140 flights
9 AM–10 AM	90 flights, too few to score	85 flights, too few to score	91 flights, too few to score	98 flights, too few to score	92 flights, too few to score	86 flights, too few to score	100 flights, too few to score
10 AM–11 AM	69 flights, too few to score	88 flights, too few to score	71 flights, too few to score	92 flights, too few to score	72 flights, too few to score	66 flights, too few to score	89 flights, too few to score
11 AM–12 PM	82.8% on time120 flights	118 flights, too few to score	118 flights, too few to score	118 flights, too few to score	78.8% on time121 flights	69.4% on time123 flights	73.6% on time126 flights
12 PM–1 PM	53 flights, too few to score	58 flights, too few to score	59 flights, too few to score	57 flights, too few to score	61 flights, too few to score	62 flights, too few to score	54 flights, too few to score
1 PM–2 PM	66.9% on time136 flights	119 flights, too few to score	119 flights, too few to score	117 flights, too few to score	61.0% on time138 flights	66.4% on time136 flights	60.0% on time122 flights
2 PM–3 PM	56 flights, too few to score	53 flights, too few to score	55 flights, too few to score	69 flights, too few to score	60 flights, too few to score	55 flights, too few to score	67 flights, too few to score
3 PM–4 PM	67.8% on time176 flights	66.0% on time153 flights	57.2% on time161 flights	66.1% on time169 flights	65.7% on time173 flights	66.3% on time176 flights	59.4% on time167 flights
4 PM–5 PM	66 flights, too few to score	54 flights, too few to score	52 flights, too few to score	45 flights, too few to score	67 flights, too few to score	46 flights, too few to score	43 flights, too few to score
5 PM–6 PM	50.8% on time184 flights	64.3% on time177 flights	58.0% on time167 flights	50.6% on time181 flights	63.5% on time183 flights	59.0% on time164 flights	52.2% on time182 flights
6 PM–7 PM	114 flights, too few to score	108 flights, too few to score	115 flights, too few to score	109 flights, too few to score	114 flights, too few to score	46.3% on time125 flights	113 flights, too few to score
7 PM–8 PM	59.8% on time167 flights	70.0% on time155 flights	66.3% on time168 flights	57.4% on time168 flights	57.8% on time170 flights	54.6% on time166 flights	51.0% on time164 flights
8 PM–9 PM	55.2% on time127 flights	96 flights, too few to score	102 flights, too few to score	89 flights, too few to score	108 flights, too few to score	93 flights, too few to score	100 flights, too few to score
9 PM–10 PM	67.1% on time152 flights	78.2% on time146 flights	77.1% on time161 flights	69.2% on time154 flights	69.0% on time151 flights	62.1% on time169 flights	77.3% on time151 flights

By departure window

5–9 AM84.5%

9 AM–12 PM77.5%

12–3 PM68.6%

3–6 PM59.6%

6–9 PM59.5%

9 PM–5 AM70.7%

By departure hour

12 AM

3 AM

6 AM

9 AM

12 PM

3 PM

6 PM

9 PM

Why MIA → DFW runs late

July 2023 – July 2026

Late-arriving aircraft37.7%

the inbound aircraft was late, so this flight started late

The airline29.9%

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

Air traffic control23.3%

airspace and airport capacity, including weather-driven flow control

Weather8.8%

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 MIA → DFW. Only delays of 15 minutes or more are attributed.

Late-arriving aircraft is the largest cause on MIA → DFW, at 37.7%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 84.5% of the time and 6–9 PM departures 59.5%.

How this route holds up in bad weather

July 2023 – July 2026

The harder-hit end is DFW, where the flight lands. Its figure counts departures from DFW, so it says more about how that airport copes than about this route. Bad weather cancels 7.0 times the normal rate at DFW against 3.3 times at MIA. Cancelled in bad weather against normal hours: MIA 4.5% against 1.3%, DFW 10.4% against 1.5%. 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 MIA and DFW in hours of bad weather and in normal hours
Departures from	MIA	DFW
Cancelled in bad weather	4.5%	10.4%
Cancelled in normal hours	1.3%	1.5%
Arrived on time, bad weather	50.6%	56.4%
Arrived on time, normal hours	74.1%	74.4%
Departures in bad weather	15,746	72,822

American Airlines (5.4% cancelled against 4.2% for the other carriers at MIA) cancelled more departures from MIA in bad weather than the other carriers there did in the same months. None of the route’s other carriers was clearly better.

This route’s airlines in bad weather at MIA

All departures from MIA

Cancellation rates in bad weather at MIA for the airlines that fly MIA to DFW, against the other carriers at MIA in the same months
Airline	Bad-weather departures	Cancelled	Other carriers
Frontier Airlines	557	3.9%about level	4.2%
Spirit Airlines	766	4.8%about level	4.4%
American Airlines	8,534	5.4%above the others	4.2%

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

Weather source and limits. In full: MIA (airlines), DFW, 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	12,845	72.0%	1.86%	-2 min	11.1%
Spirit Airlines	1,272	65.0%	1.97%	0 min	13.2%
Frontier Airlines	722	69.5%	2.77%	-1 min	13.0%

American Airlines flew 86.6% of the 14,839 flights listed.

American Airlines arrived on time 7.0 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.

Flights on this route
Flight	Scheduled	Operations	On time
AA1226 American Airlines	5:18 AM	1,121	88.3%

Weekly and seasonal patterns

By day of week

Mon70.8%

Tue76.6%

Wed72.7%

Thu71.9%

Fri71.6%

Sat68.6%

Sun67.1%

Tuesday is historically the most reliable day and Sunday the least, a gap of 9.5 percentage points.

By month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

August is historically the weakest month and October the strongest, a spread of 17.5 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 73.7% against 72.7% in the 12 months before — broadly unchanged.

Data and methodology

Calculated by FlyerIntel from 14,840 MIA → DFW 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

MIA airport DFW airport Return direction DFW → MIA

MIA→DFW

Right now

Route reliability

Why MIA → DFW 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 MIA → DFW 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 MIA

Airlines on this route

Flights on this route

Weekly and seasonal patterns

By day of week

By month

Reliability over time

Data and methodology