Best Time to Fly MSY to BWI: On-Time Stats by Hour & Airline
Louis Armstrong New Orleans International → Baltimore/Washington International Thurgood Marshall
Data through July 2026 · Last updated October 18, 2026
1,157 flights were scheduled from New Orleans (MSY) to Baltimore (BWI) in the last 12 months, and 80.8% of those that flew arrived on time, 3.1 points above the US average of 77.6%.
Southwest Airlines was the most punctual of the 2 airlines on the route at 81.0%, while Spirit Airlines trailed at 79.5%.
December has been the best month (88% on time) and Thursday the weakest day of the week (78%).
1.1% of flights were cancelled, versus 1.8% nationally.
MSY to BWI 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 |
|---|---|---|---|---|
| Southwest Airlines | 81.0% | 54 min | 1.2% | 1,026 |
| Spirit Airlines | 79.5% | 53 min | 0.9% | 113 |
| Frontier Airlines | Limited data | 18 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MSY to BWI
On-time arrival % by scheduled departure hour (local time), 2,429 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 95.0% | 1.9% | 207 |
| 6am–7am | 94.3% | 1.5% | 479 |
| 7am–8am | 93.9% | 0.0% | 33 |
| 8am–9am | Limited data | 18 | |
| 9am–10am | 85.6% | 1.4% | 141 |
| 10am–11am | 90.7% | 0.9% | 216 |
| 11am–12pm | 76.2% | 0.0% | 109 |
| 12pm–1pm | 61.7% | 1.6% | 62 |
| 1pm–2pm | 84.2% | 2.1% | 189 |
| 2pm–3pm | 77.2% | 5.2% | 97 |
| 3pm–4pm | 69.6% | 0.9% | 216 |
| 4pm–5pm | 72.8% | 1.3% | 229 |
| 5pm–6pm | 63.6% | 1.8% | 167 |
| 6pm–7pm | 54.1% | 0.0% | 99 |
| 7pm–8pm | 73.1% | 0.0% | 67 |
| 8pm–9pm | 68.8% | 5.9% | 51 |
| 9pm–10pm | 81.2% | 2.0% | 49 |
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 BWI
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) | 83.0% | +0.5 pts | 0.0% | 53 |
| Christmas & New Year (Dec 20 - Jan 3) | 86.8% | +4.3 pts | 0.9% | 107 |
| Summer peak (Jun 15 - Aug 15) | 72.9% | -9.6 pts | 2.4% | 412 |
| All other days | 82.5% | — | 1.4% | 1,857 |
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).