Carrier route record
DLJFK→MSY
Delta Air Lines · New York to New Orleans
- Flights
- 720
- Period
- July 2025 to June 2026
- Share of route
- 63%
- Carriers
- 3
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Delta Air Lines.
Delta on JFK to MSY lands a B−, 6 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 720 flights, with a median arrival 14 minutes early.
Set against the rest of the country, Delta's JFK to MSY record is 6 points better than the US average of 77.6%. That gap is worth roughly 60 fewer late arrivals for every thousand flights.
Key figures
On time
83.6%
Arrivals under 15 minutes late, of 684 completed flights
Avg delay
73 min
Across delayed arrivals only, not all flights
Cancelled
5.00%
National rate is 1.81%
Whole route
81.6%
Every carrier on JFK to MSY, 1,142 flights
These figures cover 720 flights between July 2025 and June 2026. The median arrival is 14 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Carrier by carrier
Delta against every carrier on JFK to MSY
Delta flew 720 of the 1,142 flights on JFK to MSY, most of the route. Its 83.6% on time is 2 points better than the route as a whole, which runs 81.6%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from Delta at 83.6% to Frontier at 28.6%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines (this page) | 720 | 83.6% | 73 min | 5.00% | B− |
| JetBlue Airways | 415 | 79.0% | 74 min | 3.61% | B− |
| Frontier Airlinesthin sample | 7 | 28.6% | 56 min | 0.00% | F+ |
Flight by flight
Delta flight numbers on JFK to MSY
Departure window
When Delta runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 720 flights.
- 5am–8am2 flights—
- 8am–11am362 flights86.4%
- 11am–2pm6 flights—
- 2pm–5pm350 flights80.5%
- 5pm–8pm—
- 8pm–5am—
Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.
The early departures do better, though not dramatically: 86.4% on time for the 8am–11am window against 80.5% for 2pm–5pm. Worth taking if the schedule allows, not worth an extra connection. The 8am–11am window is the busiest, with 362 flights scheduled in it.
Across the year
Delta on JFK to MSY through the year
July is the worst month at 76.8% on time, 15 points below March, the best at 91.8%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. March was the busiest month here, with 62 flights.
Across the week, Friday is the strongest day at 88.7% on time and Thursday the weakest at 77.9%. 11 points is a smaller lever than departure hour, but it is free.
Delay causes
Why Delta runs late on this route
One category carries most of the weight here. Carrier accounts for 58% of the 8,206 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 58%Carrier
- 22%National Airspace System
- 20%Late-arriving aircraft
- 1%Extreme weather
The largest share of delay minutes, 58%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 4,745 of the 8,206 delay minutes reported here. The split is drawn from 8,206 reported delay minutes.
Cancellations run at 5.00%, against 1.81% nationally. That is about one flight in twenty cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here costs
6.6% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
The 1,182 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The return leg runs 82.0% on time across 720 flights, within 2 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 720 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking Delta on JFK to MSY
Put together: the delay figures matter less here than the 5.00% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 8am–11am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 684 completed flights over 12 months sit behind that.
Related
Where to go next
- JFK to MSY, every carrier
- Delta on MSY to JFK, the return leg
- JetBlue Airways on JFK to MSY79.0%
- Delta Air Lines network-wide record
- John F. Kennedy International (JFK) delay statistics
- Louis Armstrong New Orleans International (MSY) delay statistics
- The US routes with the most cancellations
- What a cancellation rate actually tells you (and what it hides)
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.