WN3174
WN3174 (Southwest Airlines) is a multi-stop service on 19 routes, busiest Baltimore to Boston. Of 388 departures recorded from October 2024 to July 2026, 74.1% left on time, according to the US BTS.
- On-time departures74.1%of 388 flights
- Average delay14.1 min
- July 202623▼ 23.3%vs July 2025
- Cancelled2.3%
- Legs flown under this number19
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 5 | 27 | ▲ 440.0% |
| February | 2 | 21 | ▲ 950.0% |
| March | 26 | 30 | ▲ 15.4% |
| April | 9 | 6 | ▼ 33.3% |
| May | 4 | – | – |
| June | 27 | 19 | ▼ 29.6% |
| July | 30 | 23 | ▼ 23.3% |
| August | 39 | – | – |
| September | 39 | – | – |
| October | 32 | – | in progress |
| November | 10 | – | – |
| December | 14 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 81.5% | ▼ 18.5% |
| February | 100.0% | 81.0% | ▼ 19.0% |
| March | 69.2% | 76.7% | ▲ 10.7% |
| April | 77.8% | 66.7% | ▼ 14.3% |
| May | 25.0% | – | – |
| June | 39.1% | 79.0% | ▲ 101.8% |
| July | 35.7% | 69.6% | ▲ 94.8% |
| August | 59.0% | – | – |
| September | 84.6% | – | – |
| October | 100.0% | – | in progress |
| November | 100.0% | – | – |
| December | 85.7% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | – | – |
| June | 4 | 0 | ▼ 100.0% |
| July | 2 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
according to the US BTS · October 2024 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 97.7% 379
- Cancelled 2.3% 9
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BWI BOS Baltimore/Washington International Thurgood Marshall Airport – Boston Logan International Airport | 594 | 44.0 min | 37.0% | 60 |
| BWI HOU Baltimore/Washington International Thurgood Marshall Airport – William P. Hobby Airport | 2,003 | 12.8 min | 74.1% | 58 |
| MCO HOU Orlando International Airport – William P. Hobby Airport | 1,364 | 10.2 min | 73.8% | 42 |
| SAN HNL San Diego International Airport – Daniel K. Inouye International Airport | 4,201 | 9.7 min | 71.9% | 32 |
| KOA HNL Ellison Onizuka Kona International Airport at Keāhole – Daniel K. Inouye International Airport | 263 | -3.1 min | 100.0% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 3 | 3 | 100.0% | 0 |
| November 2024 | 16 | 16 | 100.0% | 0 |
| December 2024 | 6 | 6 | 100.0% | 0 |
| January 2025 | 5 | 5 | 100.0% | 0 |
| February 2025 | 2 | 2 | 100.0% | 0 |
| March 2025 | 26 | 26 | 69.2% | 0 |
| April 2025 | 9 | 9 | 77.8% | 0 |
| May 2025 | 4 | 4 | 25.0% | 0 |
| June 2025 | 27 | 23 | 39.1% | 4 |
| July 2025 | 30 | 28 | 35.7% | 2 |
| August 2025 | 39 | 39 | 59.0% | 0 |
| September 2025 | 39 | 39 | 84.6% | 0 |
| October 2025 | 32 | 31 | 100.0% | 1 |
| November 2025 | 10 | 8 | 100.0% | 2 |
| December 2025 | 14 | 14 | 85.7% | 0 |
| January 2026 | 27 | 27 | 81.5% | 0 |
| February 2026 | 21 | 21 | 81.0% | 0 |
| March 2026 | 30 | 30 | 76.7% | 0 |
| April 2026 | 6 | 6 | 66.7% | 0 |
| June 2026 | 19 | 19 | 79.0% | 0 |
| July 2026 | 23 | 23 | 69.6% | 0 |