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Route on-time record

ATL to MSY: most on-time flights and the best time to fly

Atlanta (Hartsfield Jackson Atlanta International Airport) to New Orleans (Louis Armstrong New Orleans International Airport). 4,094 nonstop flights in Jun 2025 to May 2026, 80% arrived within 15 minutes and 1.6% were cancelled. The most reliable flight number was Delta 3128 at 8:10 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

ATL → MSY

Atlanta to New Orleans: 4,094 nonstop flights a year

On time (12 months)

80%

Cancelled

1.6%

avg delay 13 min

Best time to leave

Before 9 AM

92% on time vs 69% 6 to 9 PM

Most reliable airline

Delta

80% chance on time

Check ATL to MSY fares

Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Most reliable nonstop flights

Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.

  1. #1 · Delta 3128

    8:10 AM → 8:43 AM1h 33m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    91%

    chance on time

    On time (history)
    94%
    Cancelled
    3.6%
    Avg arrival delay
    4 min
    • Arrived on time 94% of the time (318 flights, Jun 2025 to May 2026).
    • Cancelled 3.6% of the time (12 of 330).
    • Leaves in this route's most on-time window (Before 9 AM: 92% on time; 6 to 9 PM: 69%).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).

    Strong track record · 318 flights

    Find Delta 3128 fares Opens this date on Aviasales

  2. #2 · Delta 1424

    9:54 AM → 10:33 AM1h 37m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    88%

    chance on time

    On time (history)
    90%
    Cancelled
    2.0%
    Avg arrival delay
    6 min
    • Arrived on time 90% of the time (341 flights, Jun 2025 to May 2026).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).

    Strong track record · 341 flights

    Find Delta 1424 fares Opens this date on Aviasales

  3. #3 · Delta 409

    12:59 PM → 1:32 PM1h 31m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    86%

    chance on time

    On time (history)
    88%
    Cancelled
    1.1%
    Avg arrival delay
    9 min
    • Arrived on time 88% of the time (91 flights, Jun 2025 to May 2026).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).

    Moderate track record · 91 flights

    Find Delta 409 fares Opens this date on Aviasales

  4. #4 · Delta 2542

    11:37 AM → 12:10 PM1h 33m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    82%

    chance on time

    On time (history)
    83%
    Cancelled
    1.4%
    Avg arrival delay
    10 min
    • Arrived on time 83% of the time (357 flights, Jun 2025 to May 2026).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).

    Strong track record · 357 flights

    Find Delta 2542 fares Opens this date on Aviasales

  5. #5 · Southwest 1504

    2:35 PM → 3:10 PM1h 35m nonstop

    Local times, typical schedule. Last flown 2026-04-06.

    81%

    chance on time

    On time (history)
    85%
    Cancelled
    0.0%
    Avg arrival delay
    13 min
    • Arrived on time 85% of the time (33 flights, Jun 2025 to May 2026).
    • Never cancelled in 33 scheduled flights.
    • Departs inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
    • 74% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 33 flights

    Find Southwest 1504 fares Opens this date on Aviasales

  6. #6 · Delta 3157

    1:59 PM → 2:32 PM1h 33m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    80%

    chance on time

    On time (history)
    82%
    Cancelled
    2.4%
    Avg arrival delay
    10 min
    • Arrived on time 82% of the time (162 flights, Jun 2025 to May 2026).
    • Departs inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.

    Moderate track record · 162 flights

    Find Delta 3157 fares Opens this date on Aviasales

  7. #7 · Delta 3146

    3:42 PM → 4:15 PM1h 33m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    78%

    chance on time

    On time (history)
    81%
    Cancelled
    2.9%
    Avg arrival delay
    10 min
    • Arrived on time 81% of the time (165 flights, Jun 2025 to May 2026).
    • Departs inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.

    Moderate track record · 165 flights

    Find Delta 3146 fares Opens this date on Aviasales

  8. #8 · Delta 2224

    11:08 PM → 11:40 PM1h 34m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    77%

    chance on time

    On time (history)
    79%
    Cancelled
    2.0%
    Avg arrival delay
    12 min
    • Arrived on time 79% of the time (342 flights, Jun 2025 to May 2026).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).

    Strong track record · 342 flights

    Find Delta 2224 fares Opens this date on Aviasales

  9. #9 · Delta 3132

    5:29 PM → 6:02 PM1h 33m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    75%

    chance on time

    On time (history)
    77%
    Cancelled
    1.9%
    Avg arrival delay
    12 min
    • Arrived on time 77% of the time (154 flights, Jun 2025 to May 2026).
    • Departs inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.

    Moderate track record · 154 flights

    Find Delta 3132 fares Opens this date on Aviasales

  10. #10 · Delta 2072

    9:35 PM → 10:45 PM1h 32m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    70%

    chance on time

    On time (history)
    70%
    Cancelled
    1.5%
    Avg arrival delay
    23 min
    • Arrived on time 70% of the time (192 flights, Jun 2025 to May 2026).
    • Departs outside ATL's trouble window (1 PM to 7 PM, when 59% of its 96 ground stops and delay programs started).

    Moderate track record · 192 flights

    Find Delta 2072 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Delta Air Lines80%

    3,286 flights · 81% on time as flown · 1.7% cancel

  • Southwest Airlines78%

    370 flights · 78% on time as flown · 0.6% cancel

  • Spirit Airlines76%

    225 flights · 74% on time as flown · 2.0% cancel

  • Frontier Airlines64%

    210 flights · 62% on time as flown · 1.2% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • Before 9 AM92%

    445 flights · avg delay 5 min

  • 9 AM to noon86%

    759 flights · avg delay 10 min

  • Noon to 3 PM83%

    663 flights · avg delay 10 min

  • 3 to 6 PM77%

    1,165 flights · avg delay 14 min

  • 6 to 9 PM69%

    459 flights · avg delay 24 min

  • After 9 PM75%

    603 flights · avg delay 17 min

Best day: Wednesday (83%). Worst: Sunday (73%).

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

J
78
F
82
M
75
A
81
M
72
J
67
J
63
A
74
S
84
O
87
N
85
D
83

What delays this route

  • Airline (crew, maintenance, boarding)42%
  • Late-arriving aircraft36%
  • Air traffic control and airport volume15%
  • Severe weather6%

Share of delay minutes by the cause airlines report to the US DOT.

Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure

ATL to MSY questions

What time of day is best to fly ATL to MSY?
Before 9 AM: 92% of flights arrived on time, against 69% for departures 6 to 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
Which airline is most on time from ATL to MSY?
Delta, with a season-adjusted 80% chance of operating and arriving on time over 3,286 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on ATL to MSY?
July (63% on time); the best was October (87%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?
No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

More routes from ATL

Live status: FAA delays and ground stops