ATL → AUS Flight Reliability

Right now

Origin · ATLNo disruption reported

Aviation weather is not currently a factor.

Updated 07:52 UTC

Atlanta airport profile →

Destination · AUSNo disruption reported

Aviation weather is not currently a factor.

Updated 07:53 UTC

Austin airport profile →

Route reliability

July 2023 – July 2026

Route Reliability Score

68/ 100Good

Better than 58% of comparable major US routes (4,598 compared)

Calculated from 13,721 flights. How this is calculated

On-time arrivals

77.6%

10,517 of 13,561

Cancellation rate

1.02%

140 cancelled

Median arrival delay

-4 min

Average 5.9 min

Severe delays

6.3%

60+ minutes late

Delay when late

55 min

Average, when 15+ min late

Flights analyzed

13,721

3 carriers

ATL → AUS arrives on time 77.6% of the time; the return trip, AUS → ATL, arrives on time 82.4% of the time, a 4.9-point gap between the two directions of the same city pair.

ATL → AUS spends 25.1 minutes on the ground on an 813-mile trip: 15.6 minutes from pushback to wheels-up at ATL and 9.5 minutes from touchdown to gate at AUS.

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

What stands out

Reliability here swings unusually widely by season, a wider month-to-month spread than 92% of 3,357 comparable routes.

88.8% on time in a typical February, against 64.1% in May.

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 3,357 in the comparison.

Why ATL → AUS flights are cancelled

July 2023 – July 2026

ATL → AUS cancelled 140 of 13,721 scheduled flights — about 1 in every 98. The reason filed most often was the airline, 62.9% of the cancellations coded on this route — about 1 in every 156 scheduled flights.

Share of cancellations

Airline62.9%

Weather36.4%

Air traffic0.7%

Security0.0%

Of 140 cancelled departures carrying a reason code.

What each reason means

The airline1 in 156

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

88 cancellations, 62.9% of the total.

Extreme weather1 in 269

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

51 cancellations, 36.4% of the total.

The air traffic system1 in 13,721

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

1 cancellation, 0.7% 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.

140 coded cancellations were recorded on ATL → AUS; the section appears from 50.

When it goes wrong

July 2023 – July 2026

One arrival in ten is worse than

42 min late

against a median of 4 min early

Arrived an hour or more late6.3%

Typical delay when late55 min

Cancelled1.02%

Landed somewhere else0.15%

Percentiles over 13,721 operations; cancelled and diverted flights are counted separately.

Will your connection be tight enough?

Layovers at AUS after arriving from ATL.

Connection buffer and chance of missing by layover length, ATL → AUS arrivals
Connection time	Chance of missing	Reads as
30 min	40%	Likely to miss
45 min	22%	High risk
60 min	13%	Some risk
90 min	6.1%	Some risk
120 min	3.2%	Low 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 1.02% of the time and diverts 0.15% of the time, which a late arrival never shows up in.

Chance of missing is the share of 13,561 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 42 minutes late (90th-percentile gate arrival delay), over 13,721 operations.

Any other layover length: connection checker.

Best time to fly

ATL → AUS flights departing 5–9 AM arrived on time 91.6% of the time, against 67.5% for 6–9 PM departures, a gap of 24.1 percentage points.

By day and hour

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

Hour of departure matters more than day of the week: hourly averages sit a typical 9.1 points from the route-wide rate, weekday averages 4.3 points.

On-time arrival rate for ATL to AUS by weekday and scheduled departure hour, local time. Each button reads out one slot.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
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
10 PM–11 PM

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

60–64
65–69
70–74
75–79
80–84
85–89
90–94

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 before 8 AM and after 11 PM (825 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 ATL to AUS. A dash means fewer than 120 flights, which are not scored.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
8 AM–9 AM	87.8% on time235 flights	89.9% on time199 flights	92.7% on time194 flights	89.7% on time234 flights	93.2% on time237 flights	88.9% on time198 flights	89.4% on time222 flights
9 AM–10 AM	107 flights, too few to score	87.5% on time128 flights	92.9% on time127 flights	107 flights, too few to score	107 flights, too few to score	102 flights, too few to score	99 flights, too few to score
10 AM–11 AM	83.3% on time140 flights	108 flights, too few to score	103 flights, too few to score	88.3% on time137 flights	82.5% on time139 flights	89 flights, too few to score	101 flights, too few to score
11 AM–12 PM	82.5% on time127 flights	86.6% on time165 flights	90.1% on time181 flights	116 flights, too few to score	86.1% on time123 flights	118 flights, too few to score	114 flights, too few to score
12 PM–1 PM	83.6% on time157 flights	80.9% on time154 flights	84.3% on time153 flights	83.0% on time159 flights	79.6% on time164 flights	81.1% on time127 flights	76.4% on time168 flights
1 PM–2 PM	73 flights, too few to score	66 flights, too few to score	67 flights, too few to score	74 flights, too few to score	67 flights, too few to score	66 flights, too few to score	67 flights, too few to score
2 PM–3 PM	67.6% on time185 flights	83.4% on time187 flights	85.9% on time184 flights	70.6% on time179 flights	72.2% on time182 flights	71.1% on time145 flights	67.4% on time174 flights
3 PM–4 PM	69.4% on time190 flights	75.6% on time161 flights	74.7% on time146 flights	70.7% on time192 flights	64.5% on time186 flights	77.1% on time174 flights	60.6% on time222 flights
4 PM–5 PM	52 flights, too few to score	33 flights, too few to score	36 flights, too few to score	53 flights, too few to score	54 flights, too few to score	57 flights, too few to score	53 flights, too few to score
5 PM–6 PM	70.5% on time177 flights	78.3% on time184 flights	81.1% on time185 flights	60.2% on time176 flights	61.5% on time174 flights	119 flights, too few to score	60.6% on time158 flights
6 PM–7 PM	55 flights, too few to score	44 flights, too few to score	44 flights, too few to score	56 flights, too few to score	59 flights, too few to score	39 flights, too few to score	59 flights, too few to score
7 PM–8 PM	69.0% on time156 flights	73.8% on time164 flights	73.5% on time162 flights	60.0% on time150 flights	65.6% on time157 flights	71.7% on time130 flights	59.9% on time160 flights
8 PM–9 PM	55 flights, too few to score	54 flights, too few to score	57 flights, too few to score	55 flights, too few to score	55 flights, too few to score	34 flights, too few to score	51 flights, too few to score
9 PM–10 PM	106 flights, too few to score	43 flights, too few to score	45 flights, too few to score	104 flights, too few to score	98 flights, too few to score	46 flights, too few to score	98 flights, too few to score
10 PM–11 PM	75.0% on time138 flights	119 flights, too few to score	118 flights, too few to score	76.3% on time135 flights	74.3% on time141 flights	79.4% on time127 flights	65.7% on time145 flights

By departure window

5–9 AM91.6%

9 AM–12 PM85.9%

12–3 PM77.9%

3–6 PM69.3%

6–9 PM67.5%

9 PM–5 AM71.1%

By departure hour

12 AM

3 AM

6 AM

9 AM

12 PM

3 PM

6 PM

9 PM

Why ATL → AUS runs late

July 2023 – July 2026

The airline39.5%

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

Late-arriving aircraft33.5%

the inbound aircraft was late, so this flight started late

Air traffic control23.1%

airspace and airport capacity, including weather-driven flow control

Weather3.8%

weather severe enough to stop this flight specifically

Security0.1%

screening or terminal security incidents

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

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 3.3 times the normal rate at ATL against 1.7 times at AUS. Cancelled in bad weather against normal hours: ATL 3.4% against 1.0%, AUS 1.6% against 0.9%. Flights that did leave ATL in bad weather arrived on time 66.5% of the time, against 80.2% in normal hours.

Bad weather and normal hours at the airports

Scheduled departures, July 2023 – July 2026

Departures from ATL and AUS in hours of bad weather and in normal hours
Departures from	ATL	AUS
Cancelled in bad weather	3.4%	1.6%
Cancelled in normal hours	1.0%	0.9%
Arrived on time, bad weather	66.5%	74.9%
Arrived on time, normal hours	80.2%	77.5%
Departures in bad weather	105,854	22,580

Of the carriers on this route, Southwest Airlines (2.1% cancelled against 3.1% for the other carriers at ATL) cancelled the fewest departures from ATL in bad weather and Frontier Airlines (5.0% cancelled against 3.8% for the other carriers at ATL) the most.

This route’s airlines in bad weather at ATL

All departures from ATL

Cancellation rates in bad weather at ATL for the airlines that fly ATL to AUS, against the other carriers at ATL in the same months
Airline	Bad-weather departures	Cancelled	Other carriers
Southwest Airlines	8,953	2.1%below the others	3.1%
Delta Air Lines	73,919	3.5%about level	3.6%
Frontier Airlines	4,928	5.0%above the others	3.8%

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

Weather source and limits. In full: ATL (airlines), AUS, 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
Delta Air Lines	9,516	77.5%	1.17%	-4 min	6.5%
Southwest Airlines	3,756	79.0%	0.45%	-4 min	4.9%
Frontier Airlines	443	65.2%	2.71%	1 min	13.5%

Delta Air Lines flew 69.4% of the 13,715 flights listed. Frontier Airlines cancelled 2.71% of its flights here against 0.45% for Southwest Airlines.

Southwest Airlines arrived on time 13.8 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
DL1397 Delta Air Lines	1:59 PM	1,064	74.0%
DL1170 Delta Air Lines	7:49 PM	1,045	70.3%
DL2886 Delta Air Lines	9:40 AM	909	85.9%
DL1335 Delta Air Lines	10:59 PM	888	75.7%
DL2976 Delta Air Lines	8:10 AM	886	90.4%
DL1491 Delta Air Lines	3:50 PM	756	72.0%

DL2976 (8:10 AM) arrived on time 90.4% of the time, 20.1 points more often than DL1170 (7:49 PM) at 70.3%.

Weekly and seasonal patterns

By day of week

Mon75.3%

Tue82.5%

Wed84.4%

Thu76.0%

Fri75.3%

Sat79.5%

Sun70.9%

Wednesday is historically the most reliable day and Sunday the least, a gap of 13.5 percentage points.

By month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

May is historically the weakest month and February the strongest, a spread of 24.7 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 80.6% against 76.6% in the 12 months before — improving by 4.0 percentage points.

Data and methodology

Calculated by FlyerIntel from 13,721 ATL → AUS 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

ATL airport AUS airport Return direction AUS → ATL

ATL→AUS

Right now

Route reliability

What stands out

Why ATL → AUS 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 ATL → AUS 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 ATL

Airlines on this route

Flights on this route

Weekly and seasonal patterns

By day of week

By month

Reliability over time

Data and methodology