Best Time to Fly BWI to PBI: On-Time Stats by Hour & Airline
Baltimore/Washington International Thurgood Marshall → Palm Beach International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 78.5% of Baltimore (BWI) to West Palm Beach/Palm Beach (PBI) flights arrived on time (1,233 scheduled flights). That is 0.8 points above the national average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Wednesday was the most reliable day (83% on time) and December the worst month (66%).
The cancellation rate was 1.5% (US average 1.8%).
BWI to PBI 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 | 78.5% | 58 min | 1.5% | 1,233 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BWI to PBI
On-time arrival % by scheduled departure hour (local time), 2,542 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | Limited data | 5 | |
| 7am–8am | Limited data | 9 | |
| 8am–9am | 86.1% | 1.2% | 605 |
| 9am–10am | 84.4% | 1.8% | 111 |
| 10am–11am | 80.6% | 2.7% | 37 |
| 11am–12pm | 76.8% | 0.5% | 186 |
| 12pm–1pm | 78.8% | 0.0% | 170 |
| 1pm–2pm | 75.8% | 1.0% | 197 |
| 2pm–3pm | 77.1% | 1.0% | 208 |
| 3pm–4pm | 69.1% | 0.5% | 196 |
| 4pm–5pm | 71.0% | 1.6% | 63 |
| 5pm–6pm | 66.1% | 0.0% | 59 |
| 6pm–7pm | 72.4% | 1.4% | 276 |
| 7pm–8pm | 66.2% | 2.0% | 196 |
| 8pm–9pm | 65.2% | 2.3% | 216 |
| 9pm–10pm | Limited data | 8 | |
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 PBI
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) | 75.0% | -4.2 pts | 0.0% | 52 |
| Christmas & New Year (Dec 20 - Jan 3) | 63.5% | -15.7 pts | 0.9% | 116 |
| Summer peak (Jun 15 - Aug 15) | 64.3% | -14.9 pts | 1.4% | 370 |
| All other days | 79.2% | — | 1.2% | 2,004 |
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).