Route Reliability

Route reliability

Atlanta (ATL) to Memphis (MEM): which airline is most on time?

On-time arrivals, cancellations and long delays for every airline that reported nonstop flights from Atlanta, GA (ATL) to Memphis, TN (MEM), September 2025 to August 2026.

Historical performance Official DOT data through August 2026 · Not live flight status

Atlanta, GAMemphis, TN

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Three-letter airport codes, nonstop U.S. domestic flights. One direction at a time.

Route at a glance · September 2025 to August 2026

ATL to MEM

Atlanta, GA to Memphis, TN

On time
79.5%vs 75.6% U.S. average Better than average
Cancelled
1.8%vs 1.9% U.S. average About average
60+ min late
6.4%vs 8.1% U.S. average Better than average
Scheduled flights
3,430in 12 months3 airlines
Most reliable airline
Delta Air Lines79.8% on time · 3,345 flights

On time more often than the U.S. average, with a typical cancellation rate.

Compared with all U.S. flights, September 2025 to August 2026. “About average” means within 1.5 points for on time, 0.3 for cancelled and 1 for 60+ minutes late.

Airlines on this route

Ranked by on-time arrival

Airlines from ATL to MEM, September 2025 to August 2026. Rates are shares of all scheduled flights.
Airline On time Cancelled 60+ min late Avg delay when late Diverted Flights
1. Delta Air Lines Most reliable 79.8% 1.8% 6.3% 64 min 0.1% 3,345
2. Frontier Airlines 60.0% 2.9% 11.4% 76 min 1.4% 70
SkyWest Airlines Operating carrier; sold as United Express, Delta Connection, American Eagle, Alaska Insufficient sample (fewer than 50 flights) 15

On time = arrived within 15 minutes of schedule. Avg delay when late = average arrival delay of flights 15+ minutes late. "Most reliable" needs at least 300 flights in 12 months. Tap a heading to sort.

What this means

Delta Air Lines has the strongest record on this route.

  • Delta Air Lines had the best on-time record from Atlanta (ATL) to Memphis (MEM): 79.8% of its 3,345 scheduled flights arrived within 15 minutes of schedule, compared with 60.0% for Frontier Airlines.
  • SkyWest Airlines also flew this route but with fewer than 50 reported flights, too few to rate.
  • 1.8% of flights on this route were cancelled (about 1 in 56), about the same as the U.S. average of 1.9%.
  • 6.4% of flights, about 1 in 16, arrived an hour or more late. When a flight was late (15+ minutes), the average arrival delay was 65 min.
  • Overall, 79.5% of flights on this route arrived on time, 3.9 points higher than the U.S. average of 75.6%.
  • Over the last 3 years, October was the most reliable month on this route (89.7% on time) and July the least reliable (65.6%).
  • Cancellations peaked in January, when 4.8% of flights were cancelled.
  • Flights scheduled to depart 8 am to 9 am were the most punctual (90.7% on time); flights scheduled to depart 11 pm to midnight were the least (67.8%).
  • In the other direction, Memphis (MEM) to Atlanta (ATL), 84.4% of flights were on time and 1.9% were cancelled. Compare airlines MEM to ATL.

Best and worst months to fly ATL to MEM

Jan 78.4%
Feb 85.3%
Mar 78.6%
Apr 85.1%
May 77.5%
Jun 75.9%
Jul 65.6%
Aug 83.0%
Sep 87.3%
Oct 89.7%
Nov 88.5%
Dec 83.7%
Share of scheduled flights on time 12-month average 79.5%
All airlines combined, by calendar month, September 2023 to August 2026 (3 years pooled). Scale starts at zero.
Show as table
PeriodOn timeFlights
January 78.4% 755
February 85.3% 694
March 78.6% 879
April 85.1% 898
May 77.5% 946
June 75.9% 881
July 65.6% 883
August 83.0% 859
September 87.3% 836
October 89.7% 876
November 88.5% 820
December 83.7% 826

Month by month, last 12 months

Sep 88.8%
Oct 86.3%
Nov 82.3%
Dec 76.6%
Jan 74.1%
Feb 79.6%
Mar 74.5%
Apr 87.3%
May 78.2%
Jun 79.2%
Jul 66.8%
Aug 81.1%
Share of scheduled flights on time U.S. average 75.6%
All airlines combined, September 2025 to August 2026. Scale starts at zero.
Show as table
PeriodOn timeFlights
Sep 2025 88.8% 269
Oct 2025 86.3% 284
Nov 2025 82.3% 266
Dec 2025 76.6% 261
Jan 2026 74.1% 259
Feb 2026 79.6% 235
Mar 2026 74.5% 294
Apr 2026 87.3% 307
May 2026 78.2% 330
Jun 2026 79.2% 318
Jul 2026 66.8% 316
Aug 2026 81.1% 291

Best and worst departure times

8a 90.7%
9a 84.0%
10a 83.4%
11a 89.8%
12p 85.8%
1p 82.4%
2p 83.7%
3p 76.3%
4p 77.6%
5p 73.8%
6p 76.3%
7p 70.3%
8p 75.2%
9p 74.4%
10p 76.5%
11p 67.8%
Share of scheduled flights on time
By scheduled local departure hour at ATL, September 2025 to August 2026. Hours with no scheduled flights are omitted. Scale starts at zero.
Show as table
PeriodOn timeFlights
Departing 8 am to 9 am 90.7% 280
Departing 9 am to 10 am 84.0% 194
Departing 10 am to 11 am 83.4% 290
Departing 11 am to noon 89.8% 147
Departing noon to 1 pm 85.8% 204
Departing 1 pm to 2 pm 82.4% 227
Departing 2 pm to 3 pm 83.7% 166
Departing 3 pm to 4 pm 76.3% 236
Departing 4 pm to 5 pm 77.6% 295
Departing 5 pm to 6 pm 73.8% 244
Departing 6 pm to 7 pm 76.3% 156
Departing 7 pm to 8 pm 70.3% 145
Departing 8 pm to 9 pm 75.2% 319
Departing 9 pm to 10 pm 74.4% 164
Departing 10 pm to 11 pm 76.5% 183
Departing 11 pm to midnight 67.8% 180
Woman at an airport window watching a plane take off
Photo: Depositphotos (licensed stock, illustrative only). Credits

Sources & data dates

Source
U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
Period
September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
Data through
August 2026
Processed
2026-11-03
Scope
Nonstop scheduled flights from Atlanta, GA (ATL) to Memphis, TN (MEM), one direction. Airlines that report to the DOT only.
Method
Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.

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