Best Time to Fly BWI to BDL: On-Time Stats by Hour & Airline
Baltimore/Washington International Thurgood Marshall → Bradley International
Data through July 2026 · Last updated October 18, 2026
1,747 flights were scheduled from Baltimore (BWI) to Hartford (BDL) in the last 12 months, and 82.2% of those that flew arrived on time, 4.5 points above the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
September has been the best month (87% on time) and Sunday the weakest day of the week (75%).
2.1% of flights were cancelled, versus 1.8% nationally.
BWI to BDL 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 | 82.2% | 54 min | 2.1% | 1,747 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BWI to BDL
On-time arrival % by scheduled departure hour (local time), 3,488 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 94.7% | 1.6% | 385 |
| 7am–8am | 98.7% | 1.3% | 77 |
| 8am–9am | Limited data | 23 | |
| 9am–10am | 87.9% | 1.0% | 208 |
| 10am–11am | 91.7% | 0.9% | 449 |
| 11am–12pm | 87.1% | 0.0% | 93 |
| 12pm–1pm | 85.8% | 3.2% | 124 |
| 1pm–2pm | 86.1% | 1.3% | 226 |
| 2pm–3pm | 84.8% | 1.2% | 166 |
| 3pm–4pm | 81.0% | 1.1% | 282 |
| 4pm–5pm | 75.5% | 2.5% | 198 |
| 5pm–6pm | 75.6% | 1.6% | 242 |
| 6pm–7pm | 65.0% | 0.6% | 181 |
| 7pm–8pm | 73.0% | 2.6% | 76 |
| 8pm–9pm | 68.9% | 1.4% | 215 |
| 9pm–10pm | 69.0% | 1.9% | 260 |
| 10pm–11pm | 52.4% | 5.0% | 283 |
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 BDL
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) | 84.8% | +2.8 pts | 0.0% | 66 |
| Christmas & New Year (Dec 20 - Jan 3) | 73.4% | -8.6 pts | 0.7% | 144 |
| Summer peak (Jun 15 - Aug 15) | 72.6% | -9.4 pts | 4.1% | 614 |
| All other days | 82.0% | — | 1.2% | 2,664 |
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).