Skip to content
WanderNerd
Check a flight

Route Reliability

Atlanta → Austin

ATL–AUS · 813 miles · Hartsfield–Jackson Atlanta International Airport to Austin–Bergstrom International Airport

81
Pretty Reliable
WanderNerd Reliability Score
79%
Arrive within 15 minutes
4 min
Average arrival delay
1.5%
Cancelled
4,566
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.Southwest Airlines81%1,036 flights
  2. 2.Delta Air Lines79%3,264 flights
  3. 3.Frontier Airlines66%265 flights

Not enough history to rank: American Airlines (1 flights). We rank airlines only after 100 flights on the route.

What the data says

Morning-you made the right choice.

ATL–AUS flights departing between 6–9 AM arrived on time 92% of the time, versus 69% between 3–6 PM.

Sunday scaries are real for this one.

ATL–AUS flights arrived on time 86% of the time on Wednesdays. On Sundays: 71%.

Southwest Airlines has a clear lead on this route.

Southwest Airlines arrived on time 81% of the time on this route; Frontier Airlines managed 66%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon76%(674 flights)
  • Tue84%(626 flights)
  • Wed86%(626 flights)
  • Thu78%(676 flights)
  • Fri79%(678 flights)
  • Sat81%(530 flights)
  • Sun71%(681 flights)
On-time by departure window
  • 6–9 AM92%(534 flights)
  • 9 AM–12 PM89%(926 flights)
  • 12–3 PM81%(1011 flights)
  • 3–6 PM69%(1033 flights)
  • 6–9 PM71%(527 flights)
  • 9 PM–12 AM70%(460 flights)
On-time trend by month
77%
May

Jun 60% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%390
July 202563%405
August 202572%400
September 202587%385
October 202583%406
November 202581%372
December 202579%359
January 202686%330
February 202693%329
March 202685%372
April 202687%363
May 202677%380

Keep nerding

Based on 4,566 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.