AUS → ATL Flight Reliability

Right now

Origin · AUSNo disruption reported

Aviation weather is not currently a factor.

Updated 07:53 UTC

Austin airport profile →

Destination · ATLNo disruption reported

Aviation weather is not currently a factor.

Updated 07:52 UTC

Atlanta airport profile →

Route reliability

July 2023 – July 2026

Route Reliability Score

74/ 100Good

Better than 72% of comparable major US routes (4,598 compared)

Calculated from 13,720 flights. How this is calculated

On-time arrivals

82.4%

11,166 of 13,545

Cancellation rate

1.09%

150 cancelled

Median arrival delay

-8 min

Average 3.4 min

Severe delays

5.7%

60+ minutes late

Delay when late

66 min

Average, when 15+ min late

Flights analyzed

13,720

3 carriers

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

AUS → ATL spends 24.4 minutes on the ground on an 813-mile trip: 14.4 minutes from pushback to wheels-up at AUS and 10.0 minutes from touchdown to gate at ATL.

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

What stands out

The airline matters unusually much on this route, a wider carrier-to-carrier gap than 100% of 2,692 comparable routes.

Delta Air Lines arrived on time 84.9% of the time, against 48.0% for Frontier Airlines, flying the exact same route.

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 2,692 in the comparison.

Why AUS → ATL flights are cancelled

July 2023 – July 2026

AUS → ATL cancelled 150 of 13,720 scheduled flights — about 1 in every 91. The reason filed most often was the airline, 58.0% of the cancellations coded on this route — about 1 in every 158 scheduled flights.

Share of cancellations

Airline58.0%

Weather40.7%

Air traffic1.3%

Security0.0%

Of 150 cancelled departures carrying a reason code.

What each reason means

The airline1 in 158

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

87 cancellations, 58.0% of the total.

Extreme weather1 in 225

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

61 cancellations, 40.7% of the total.

The air traffic system1 in 6,860

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

2 cancellations, 1.3% 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.

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

When it goes wrong

July 2023 – July 2026

One arrival in ten is worse than

34 min late

against a median of 8 min early

Arrived an hour or more late5.7%

Typical delay when late66 min

Cancelled1.09%

Landed somewhere else0.18%

Percentiles over 13,720 operations; cancelled and diverted flights are counted separately.

Will your connection be tight enough?

Layovers at ATL after arriving from AUS.

Connection buffer and chance of missing by layover length, AUS → ATL arrivals
Connection time	Chance of missing	Reads as
30 min	31%	Likely to miss
45 min	17%	High risk
60 min	11%	Some risk
90 min	5.6%	Some risk
120 min	3.3%	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 1.09% of the time and diverts 0.18% of the time, which a late arrival never shows up in.

Chance of missing is the share of 13,545 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 34 minutes late (90th-percentile gate arrival delay), over 13,720 operations.

Any other layover length: connection checker.

Best time to fly

AUS → ATL flights departing 5–9 AM arrived on time 92.7% of the time, against 68.0% for 9 PM–5 AM departures, a gap of 24.7 percentage points.

By day and hour

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

Hour of departure matters more than day of the week: hourly averages sit a typical 9.7 points from the route-wide rate, weekday averages 3.5 points.

On-time arrival rate for AUS to ATL 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

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

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 7 PM (732 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 AUS to ATL. A dash means fewer than 120 flights, which are not scored.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
5 AM–6 AM	93.4% on time187 flights	94.4% on time165 flights	96.3% on time164 flights	96.2% on time186 flights	95.7% on time188 flights	94.9% on time184 flights	94.2% on time175 flights
6 AM–7 AM	92.7% on time197 flights	94.4% on time197 flights	93.8% on time195 flights	95.9% on time195 flights	91.8% on time197 flights	94.5% on time187 flights	92.0% on time202 flights
7 AM–8 AM	46 flights, too few to score	63 flights, too few to score	64 flights, too few to score	47 flights, too few to score	44 flights, too few to score	61 flights, too few to score	64 flights, too few to score
8 AM–9 AM	89.5% on time173 flights	90.4% on time159 flights	90.6% on time160 flights	90.6% on time171 flights	92.4% on time171 flights	89.0% on time147 flights	84.7% on time159 flights
9 AM–10 AM	63 flights, too few to score	68 flights, too few to score	72 flights, too few to score	66 flights, too few to score	65 flights, too few to score	35 flights, too few to score	46 flights, too few to score
10 AM–11 AM	86.6% on time190 flights	88.2% on time178 flights	90.9% on time178 flights	91.1% on time190 flights	89.5% on time192 flights	88.7% on time145 flights	89.2% on time162 flights
11 AM–12 PM	32 flights, too few to score	61 flights, too few to score	59 flights, too few to score	34 flights, too few to score	35 flights, too few to score	39 flights, too few to score	48 flights, too few to score
12 PM–1 PM	81.7% on time194 flights	83.8% on time179 flights	86.4% on time176 flights	83.2% on time186 flights	75.1% on time183 flights	80.3% on time156 flights	80.1% on time157 flights
1 PM–2 PM	82.7% on time142 flights	87.4% on time129 flights	86.3% on time139 flights	86.6% on time128 flights	77.0% on time140 flights	84.4% on time126 flights	74.6% on time139 flights
2 PM–3 PM	111 flights, too few to score	108 flights, too few to score	112 flights, too few to score	110 flights, too few to score	113 flights, too few to score	107 flights, too few to score	112 flights, too few to score
3 PM–4 PM	114 flights, too few to score	82.8% on time146 flights	83.2% on time143 flights	115 flights, too few to score	109 flights, too few to score	68 flights, too few to score	114 flights, too few to score
4 PM–5 PM	65.5% on time141 flights	118 flights, too few to score	76.9% on time121 flights	58.2% on time143 flights	62.8% on time148 flights	71.9% on time124 flights	62.8% on time147 flights
5 PM–6 PM	66.5% on time162 flights	83.2% on time144 flights	75.4% on time126 flights	68.3% on time164 flights	63.4% on time147 flights	106 flights, too few to score	57.0% on time152 flights
6 PM–7 PM	67.7% on time195 flights	82.4% on time133 flights	84.5% on time129 flights	67.2% on time190 flights	65.9% on time208 flights	76.9% on time132 flights	62.8% on time196 flights

By departure window

5–9 AM92.7%

9 AM–12 PM90.6%

12–3 PM80.7%

3–6 PM71.2%

6–9 PM70.7%

9 PM–5 AM68.0%

By departure hour

12 AM

3 AM

6 AM

9 AM

12 PM

3 PM

6 PM

9 PM

Why AUS → ATL runs late

July 2023 – July 2026

Late-arriving aircraft45.5%

the inbound aircraft was late, so this flight started late

The airline30.0%

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

Air traffic control20.4%

airspace and airport capacity, including weather-driven flow control

Weather3.9%

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 AUS → ATL. Only delays of 15 minutes or more are attributed.

Late-arriving aircraft is the largest cause on AUS → ATL, at 45.5%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 92.7% of the time and 9 PM–5 AM departures 68.0%.

How this route holds up in bad weather

July 2023 – July 2026

The harder-hit end is ATL, where the flight lands. Its figure counts departures from ATL, so it says more about how that airport copes than about this route. Bad weather cancels 3.3 times the normal rate at ATL against 1.7 times at AUS. Cancelled in bad weather against normal hours: AUS 1.6% against 0.9%, ATL 3.4% against 1.0%. 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 AUS and ATL in hours of bad weather and in normal hours
Departures from	AUS	ATL
Cancelled in bad weather	1.6%	3.4%
Cancelled in normal hours	0.9%	1.0%
Arrived on time, bad weather	74.9%	66.5%
Arrived on time, normal hours	77.5%	80.2%
Departures in bad weather	22,580	105,854

Southwest Airlines (1.0% cancelled against 2.0% for the other carriers at AUS) cancelled fewer departures from AUS in bad weather than the other carriers there did in the same months. None of the route’s other carriers was clearly worse. One more carrier flies this route but has too few bad-weather departures from AUS to compare.

This route’s airlines in bad weather at AUS

All departures from AUS

Cancellation rates in bad weather at AUS for the airlines that fly AUS to ATL, against the other carriers at AUS in the same months
Airline	Bad-weather departures	Cancelled	Other carriers
Southwest Airlines	9,022	1.0%below the others	2.0%
Delta Air Lines	3,362	1.2%about level	1.6%

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

Weather source and limits. In full: AUS (airlines), ATL, 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	9,514	84.9%	1.20%	-9 min	5.1%
Southwest Airlines	3,759	80.2%	0.59%	-5 min	5.7%
Frontier Airlines	443	48.0%	3.16%	17 min	20.3%

Delta Air Lines flew 69.4% of the 13,716 flights listed. Frontier Airlines cancelled 3.16% of its flights here against 0.59% for Southwest Airlines.

Delta Air Lines arrived on time 36.9 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
DL1344 Delta Air Lines	5:30 AM	1,127	95.0%
DL1258 Delta Air Lines	6:40 AM	1,098	93.0%
DL2104 Delta Air Lines	3:00 PM	905	77.2%
DL2899 Delta Air Lines	8:25 AM	757	89.6%

DL1344 (5:30 AM) arrived on time 95.0% of the time, 17.8 points more often than DL2104 (3:00 PM) at 77.2%.

Weekly and seasonal patterns

By day of week

Mon80.7%

Tue86.5%

Wed86.8%

Thu81.3%

Fri79.5%

Sat85.9%

Sun77.5%

Wednesday is historically the most reliable day and Sunday the least, a gap of 9.3 percentage points.

By month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

July is historically the weakest month and September the strongest, a spread of 18.2 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 81.9% against 81.7% in the 12 months before — broadly unchanged.

Data and methodology

Calculated by FlyerIntel from 13,720 AUS → ATL 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

AUS airport ATL airport Return direction ATL → AUS

AUS→ATL

Right now

Route reliability

What stands out

Why AUS → ATL 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 AUS → ATL 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 AUS

Airlines on this route

Flights on this route

Weekly and seasonal patterns

By day of week

By month

Reliability over time

Data and methodology