Boston (BOS) to New Orleans (MSY): On-Time Performance
Data through July 2026
The calendar drives reliability on BOS–MSY. September 2025 flights landed on schedule 92% of the time, but December 2025 dropped to 60% — a gap of 32 points. Across the full period the route averages 77% on-time against a national 78%. Morning departures also hold up better than evening ones (81% vs 65%), which matters most in the rough months.
- On-time
- 77%
- arrived <15 min late
- Avg delay
- 17 min
- completed flights
- Cancelled
- 1.6%
- Flights/day
- 2.3
- last 12 months
- Duration
- 3h 47m
- scheduled
- Distance
- 1,367 mi
Best airline from BOS to MSY
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Linesmost reliable | 80% | 15 min | 1.8% | 774 |
| Spirit Airlines | 76% | 20 min | 1.7% | 175 |
| JetBlue Airways | 75% | 19 min | 1.4% | 1,037 |
Monthly on-time trend
Best time to fly from BOS to MSY
Aim for departures around 5 a.m. (97% on-time); avoid 6 p.m. departures (49%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 73% | 24 min |
| Tuesdaybest | 83% | 10 min |
| Wednesday | 82% | 14 min |
| Thursday | 72% | 18 min |
| Friday | 78% | 21 min |
| Saturday | 81% | 14 min |
| Sunday | 75% | 18 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft37%
- Airline operations33%
- National airspace system27%
- Weather3%
Frequently asked questions
- How often are flights from BOS to MSY delayed?
- 23% of BOS–MSY flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 17 minutes.
- Which airline is most reliable from BOS to MSY?
- Delta Air Lines has the best on-time record on this route at 80%, based on 774 flights. 3 airlines flew BOS–MSY frequently enough to compare in this period.
- What is the best time of day to fly from BOS to MSY?
- Departures around 5 a.m. have the best record (97% on-time), while departures around 6 p.m. have the worst (49%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BOS to MSY?
- The scheduled BOS–MSY flight time averages 3h 47m over 1,367 miles. Actual arrival times vary — flights on this route land 15+ minutes late 23% of the time.
- How often are BOS to MSY flights cancelled?
- 1.6% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from BOS to MSY?
- December 2025 was the roughest month in this dataset, with only 60% of arrivals on time. The best was September 2025 at 92%. If your dates are flexible, that 32-point gap is worth planning around.
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Based on 1,992 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.