Baltimore (BWI) to Boston (BOS) flights
Southwest Airlines, Republic Airline fly nonstop from Baltimore/Washington International Thurgood Marshall Airport to Boston Logan International Airport, with about 69 flights a week in July 2026. The 369-mile flight takes about 1h 26m gate to gate.
- Distance
- 369 mi · 594 km
- Flight time
- 1h 26m
- Airlines
- 2
- Seats filled
- 79%
Airlines flying BWI to BOS
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 46 | Boeing 737 MAX 8, Boeing 737-700 / MAX 7, Boeing 737-800 | 307,150 | 1h 23m |
| Republic Airline | 23 | Embraer E175 | 57,714 | 1h 32m |
| Spirit AirlinesCeased operations 2026-05-02 | n/a | Airbus A320-100/200, Airbus A320neo, Airbus A321 | 5,534 | 1h 23m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
BWI to BOS flight schedule
24 flight numbers flew this route in August 2026, 7 of them almost daily. The first usually leaves at 6:21am and the last at 8:40pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| DL 5813Delta Air Lines · operated by Republic Airline | 6:21am | 8:00am | 31 | 96% |
| WN 2895Southwest Airlines | 6:30am | 8:00am | 12 | 100% |
| WN 3994Southwest Airlines | 6:30am | 8:00am | 28 | 67% |
| WN 362Southwest Airlines | 8:00am | 9:30am | 12 | 73% |
| WN 534Southwest Airlines | 8:15am | 9:50am | 12 | 100% |
| WN 580Southwest Airlines | 8:20am | 9:55am | 4 | n/a |
| WN 4493Southwest Airlines | 8:30am | 10:05am | 4 | n/a |
| DL 5703Delta Air Lines · operated by Republic Airline | 9:00am | 10:38am | 31 | 91% |
| WN 1119Southwest Airlines | 10:55am | 12:30pm | 12 | 83% |
| WN 238Southwest Airlines | 11:05am | 12:40pm | 4 | n/a |
| WN 738Southwest Airlines | 12:40pm | 2:10pm | 4 | n/a |
| WN 1910Southwest Airlines | 1:00pm | 2:30pm | 12 | 42% |
| WN 1562Southwest Airlines | 1:10pm | 2:40pm | 6 | n/a |
| WN 1058Southwest Airlines | 1:25pm | 2:55pm | 4 | 89% |
| DL 5668Delta Air Lines · operated by Republic Airline | 1:45pm | 3:23pm | 20 | 76% |
| WN 856Southwest Airlines | 2:15pm | 3:45pm | 12 | 63% |
| WN 3995Southwest Airlines | 2:20pm | 3:50pm | 4 | n/a |
| WN 352Southwest Airlines | 2:30pm | 4:00pm | 12 | 92% |
| WN 247Southwest Airlines | 3:00pm | 4:30pm | 4 | n/a |
| WN 1222Southwest Airlines | 6:05pm | 7:40pm | 24 | 52% |
| DL 5644Delta Air Lines · operated by Republic Airline | 6:27pm | 8:12pm | 26 | 66% |
| WN 4431Southwest Airlines | 7:45pm | 9:25pm | 8 | n/a |
| WN 777Southwest Airlines | 8:10pm | 9:40pm | 4 | n/a |
| WN 1450Southwest Airlines | 8:40pm | 10:10pm | 26 | 59% |
Is BWI to BOS on time?
From September 2025 to August 2026, 74% of 3,540 flights arrived within 15 minutes of schedule and 3.2% were cancelled. Flights leaving around 8am were the most punctual (95%), those around 1pm the least (56%). Most delay time was caused by air traffic control and airport congestion (40%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 2,415 | 71% | 19 min | 2.8% |
| Delta Air Lines | 1,099 | 81% | 17 min | 4.1% |
| Spirit Airlines | 26 | 81% | 7 min | 0% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 6am to 7am | 463 | 94% | |
| 8am to 9am | 237 | 95% | |
| 9am to 10am | 159 | 90% | |
| 10am to 11am | 441 | 87% | |
| 11am to 12pm | 106 | 84% | |
| 12pm to 1pm | 111 | 79% | |
| 1pm to 2pm | 269 | 56% | |
| 2pm to 3pm | 222 | 67% | |
| 3pm to 4pm | 269 | 70% | |
| 4pm to 5pm | 156 | 46% | |
| 5pm to 6pm | 153 | 51% | |
| 6pm to 7pm | 160 | 51% | |
| 7pm to 8pm | 289 | 70% | |
| 8pm to 9pm | 167 | 58% | |
| 9pm to 10pm | 133 | 63% | |
| 10pm to 11pm | 143 | 64% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 314 | 36,501 | |
| September 2025 | 284 | 31,328 | |
| October 2025 | 333 | 38,402 | |
| November 2025 | 277 | 28,997 | |
| December 2025 | 270 | 26,471 | |
| January 2026 | 226 | 21,377 | |
| February 2026 | 214 | 18,778 | |
| March 2026 | 258 | 27,761 | |
| April 2026 | 323 | 33,520 | |
| May 2026 | 315 | 37,385 | |
| June 2026 | 300 | 35,028 | |
| July 2026 | 304 | 34,850 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.