Route on-time record
MSY to ATL: most on-time flights and the best time to fly
New Orleans (Louis Armstrong New Orleans International Airport) to Atlanta (Hartsfield Jackson Atlanta International Airport). 4,097 nonstop flights in Jun 2025 to May 2026, 82% arrived within 15 minutes and 1.6% were cancelled. The most reliable flight number was Delta 1547 at 5:35 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
MSY → ATL
New Orleans to Atlanta: 4,097 nonstop flights a year
On time (12 months)
82%
Cancelled
1.6%
avg delay 13 min
Best time to leave
Before 9 AM
90% on time vs 74% 3 to 6 PM
Most reliable airline
Delta
85% chance on time
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 · Delta 1547
5:35 AM → 8:02 AM1h 30m nonstop
Local times, typical schedule. Last flown 2026-05-30.
91%
chance on time
- On time (history)
- 93%
- Cancelled
- 2.3%
- Avg arrival delay
- 5 min
- Arrived on time 93% of the time (302 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 3 to 6 PM: 74%).
Strong track record · 302 flights
Find Delta 1547 fares Opens this date on Aviasales#2 · Delta 3128
10:38 AM → 1:05 PM1h 27m nonstop
Local times, typical schedule. Last flown 2026-05-31.
89%
chance on time
- On time (history)
- 92%
- Cancelled
- 3.6%
- Avg arrival delay
- 6 min
- Arrived on time 92% of the time (322 flights, Jun 2025 to May 2026).
- Cancelled 3.6% of the time (12 of 334).
- Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 322 flights
Find Delta 3128 fares Opens this date on Aviasales#3 · Delta 1534
6:44 AM → 9:18 AM1h 34m nonstop
Local times, typical schedule. Last flown 2026-05-31.
89%
chance on time
- On time (history)
- 91%
- Cancelled
- 2.2%
- Avg arrival delay
- 7 min
- Arrived on time 91% of the time (354 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 3 to 6 PM: 74%).
Strong track record · 354 flights
Find Delta 1534 fares Opens this date on Aviasales#4 · Delta 2522
7:49 AM → 10:20 AM1h 31m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 88%
- Cancelled
- 1.1%
- Avg arrival delay
- 10 min
- Arrived on time 88% of the time (361 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 3 to 6 PM: 74%).
Strong track record · 361 flights
Find Delta 2522 fares Opens this date on Aviasales#5 · Delta 1424
11:39 AM → 2:06 PM1h 28m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 89%
- Cancelled
- 2.3%
- Avg arrival delay
- 8 min
- Arrived on time 89% of the time (344 flights, Jun 2025 to May 2026).
- Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 344 flights
Find Delta 1424 fares Opens this date on Aviasales#6 · Delta 3102
7:10 PM → 9:49 PM1h 39m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Delta 3132; its record covers all of them.
84%
chance on time
- On time (history)
- 87%
- Cancelled
- 1.9%
- Avg arrival delay
- 9 min
- Arrived on time 87% of the time (104 flights, Jun 2025 to May 2026).
Moderate track record · 104 flights
Find Delta 3102 fares Opens this date on Aviasales#7 · Delta 2542
1:17 PM → 3:44 PM1h 29m nonstop
Local times, typical schedule. Last flown 2026-05-31.
82%
chance on time
- On time (history)
- 83%
- Cancelled
- 1.1%
- Avg arrival delay
- 11 min
- Arrived on time 83% of the time (356 flights, Jun 2025 to May 2026).
- Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
- 63% of its delay minutes came from the plane arriving late from an earlier flight.
Strong track record · 356 flights
Find Delta 2542 fares Opens this date on Aviasales#8 · Southwest 1711
10:05 AM → 12:30 PM1h 25m nonstop
Local times, typical schedule. Last flown 2026-04-01.
82%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 0 min
- Arrived on time 100% of the time (8 flights, Jun 2025 to May 2026).
- Short track record (8 flights), so its score leans on the airline's record at this hour.
Limited track record · 8 flights
Find Southwest 1711 fares Opens this date on Aviasales#9 · Delta 409
2:37 PM → 5:04 PM1h 28m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
- On time (history)
- 81%
- Cancelled
- 1.1%
- Avg arrival delay
- 14 min
- Arrived on time 81% of the time (91 flights, Jun 2025 to May 2026).
- Lands inside ATL's trouble window: 59% of its 96 ground stops and delay programs started between 1 PM and 7 PM.
Moderate track record · 91 flights
Find Delta 409 fares Opens this date on Aviasales#10 · Delta 3146
5:22 PM → 7:53 PM1h 34m nonstop
Local times, typical schedule. Last flown 2026-05-06.
79%
chance on time
- On time (history)
- 83%
- Cancelled
- 3.4%
- Avg arrival delay
- 21 min
- Arrived on time 83% of the time (140 flights, Jun 2025 to May 2026).
- Cancelled 3.4% of the time (5 of 145).
- Leaves in this route's least on-time window (3 to 6 PM: 74% on time; Before 9 AM: 90%).
Moderate track record · 140 flights
Find Delta 3146 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Delta Air Lines85%
3,288 flights · 86% on time as flown · 1.8% cancel
- Spirit Airlines74%
228 flights · 72% on time as flown · 2.0% cancel
- Southwest Airlines72%
368 flights · 71% on time as flown · 0.7% cancel
- Frontier Airlines60%
211 flights · 56% on time as flown · 1.2% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM90%
1,128 flights · avg delay 8 min
- 9 AM to noon89%
873 flights · avg delay 8 min
- Noon to 3 PM79%
731 flights · avg delay 14 min
- 3 to 6 PM74%
1,053 flights · avg delay 20 min
- 6 to 9 PM76%
287 flights · avg delay 15 min
Best day: Wednesday (87%). Worst: Sunday (75%).
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.
What delays this route
- Late-arriving aircraft44%
- Airline (crew, maintenance, boarding)29%
- Air traffic control and airport volume25%
- Severe weather3%
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
MSY to ATL questions
- What time of day is best to fly MSY to ATL?
- Before 9 AM: 90% of flights arrived on time, against 74% for departures 3 to 6 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 MSY to ATL?
- Delta, with a season-adjusted 85% chance of operating and arriving on time over 3,288 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 MSY to ATL?
- July (73% on time); the best was September (90%), 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 MSY
- ATL to MSY (return)
- MSY to IAH 82%
- MSY to DFW 72%
- MSY to ORD 79%
- MSY to MCO 77%
- MSY to DAL 78%
- MSY to HOU 76%
- MSY to DEN 80%
- MSY to AUS 78%
- MSY to DCA 71%
- MSY to CLT 83%
- MSY to MIA 79%
- MSY to LAX 80%
Live status: FAA delays and ground stops