Best Time to Fly BWI to JAX: On-Time Stats by Hour & Airline
Baltimore/Washington International Thurgood Marshall → Jacksonville International
Data through July 2026 · Last updated October 18, 2026
1,401 flights were scheduled from Baltimore (BWI) to Jacksonville (JAX) in the last 12 months, and 76.4% of those that flew arrived on time, 1.2 points below the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (81% on time) and June the worst month (66%).
The cancellation rate was 1.6% (US average 1.8%).
BWI to JAX 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 | 76.4% | 48 min | 1.6% | 1,401 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BWI to JAX
On-time arrival % by scheduled departure hour (local time), 2,775 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 6 | |
| 8am–9am | 88.1% | 1.2% | 673 |
| 9am–10am | 87.8% | 0.0% | 49 |
| 10am–11am | 89.9% | 1.0% | 100 |
| 11am–12pm | 84.2% | 1.5% | 199 |
| 12pm–1pm | 84.3% | 0.9% | 109 |
| 1pm–2pm | 74.3% | 1.7% | 175 |
| 2pm–3pm | 73.7% | 0.8% | 134 |
| 3pm–4pm | 79.2% | 2.2% | 178 |
| 4pm–5pm | 66.5% | 0.0% | 165 |
| 5pm–6pm | 65.0% | 2.4% | 209 |
| 6pm–7pm | 72.4% | 1.7% | 354 |
| 7pm–8pm | 58.8% | 4.2% | 190 |
| 8pm–9pm | 64.9% | 5.0% | 161 |
| 9pm–10pm | 54.9% | 1.4% | 72 |
| 10pm–11pm | Limited data | 1 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BWI to JAX
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) | 78.3% | -0.8 pts | 0.0% | 60 |
| Christmas & New Year (Dec 20 - Jan 3) | 73.3% | -5.8 pts | 0.7% | 136 |
| Summer peak (Jun 15 - Aug 15) | 65.1% | -14.1 pts | 3.8% | 478 |
| All other days | 79.2% | — | 1.4% | 2,101 |
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).