Best Time to Fly MSY to SLC: On-Time Stats by Hour & Airline
Louis Armstrong New Orleans International → Salt Lake City International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 91.3% of New Orleans (MSY) to Salt Lake City (SLC) flights arrived on time (455 scheduled flights). That is 13.7 points above the national average of 77.6%.
Delta Air Lines was the only reporting airline with regular flights on this route.
Over 24 months, Wednesday was the most reliable day (94% on time) and July the worst month (84%).
The cancellation rate was 0.2% (US average 1.8%).
MSY to SLC on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Lines | 91.3% | 97 min | 0.2% | 455 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MSY to SLC
On-time arrival % by scheduled departure hour (local time), 918 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 1pm–2pm | 90.3% | 0.7% | 439 |
| 2pm–3pm | 96.8% | 0.0% | 95 |
| 3pm–4pm | Limited data | 5 | |
| 4pm–5pm | 94.6% | 0.0% | 56 |
| 5pm–6pm | Limited data | 8 | |
| 6pm–7pm | Limited data | 21 | |
| 7pm–8pm | 88.0% | 0.7% | 294 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MSY to SLC
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 12 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 84.3% | -7.2 pts | 0.0% | 52 |
| Summer peak (Jun 15 - Aug 15) | 86.3% | -5.3 pts | 0.0% | 124 |
| All other days | 91.6% | — | 0.7% | 730 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).