WN3710
WN3710 (Southwest Airlines) is a multi-stop service on 19 routes, busiest Chicago to Baltimore. Of 561 departures recorded from October 2024 to July 2026, 65.0% left on time, according to the US BTS.
- On-time departures65.0%of 561 flights
- Average delay17.3 min
- July 202622▼ 29.0%vs July 2025
- Cancelled1.3%
- Legs flown under this number19
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 9 | 5 | ▼ 44.4% |
| February | 15 | 3 | ▼ 80.0% |
| March | 40 | 53 | ▲ 32.5% |
| April | 30 | 35 | ▲ 16.7% |
| May | 26 | 30 | ▲ 15.4% |
| June | 30 | 15 | ▼ 50.0% |
| July | 31 | 22 | ▼ 29.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 181 | 163 | ▼ 9.9% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 75.0% | 40.0% | ▼ 46.7% |
| February | 86.7% | 100.0% | ▲ 15.4% |
| March | 76.3% | 45.3% | ▼ 40.7% |
| April | 93.3% | 60.0% | ▼ 35.7% |
| May | 84.6% | 80.0% | ▼ 5.5% |
| June | 40.0% | 66.7% | ▲ 66.7% |
| July | 25.8% | 61.9% | ▲ 139.8% |
| August | 61.3% | – | – |
| September | 70.0% | – | – |
| October | 41.9% | – | in progress |
| November | 70.4% | – | – |
| December | 67.7% | – | – |
| Year-to-date average (Jan–Jul) | 68.8% | 64.8% | ▼ 5.8% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | 1 | – |
| March | 2 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 2 | ▼ 33.3% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 98.8% 554
- Cancelled 1.2% 7
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MDW IND Chicago Midway International Airport – Indianapolis International Airport | 261 | 18.5 min | 67.7% | 64 |
| MDW BWI Chicago Midway International Airport – Baltimore/Washington International Thurgood Marshall Airport | 981 | 15.6 min | 73.0% | 64 |
| MDW MCI Chicago Midway International Airport – Kansas City International Airport | 650 | 21.5 min | 69.0% | 58 |
| SJC HOU Mineta San Jose International Airport – William P. Hobby Airport | 2,605 | 10.6 min | 75.4% | 57 |
| MCO HOU Orlando International Airport – William P. Hobby Airport | 1,364 | 33.4 min | 28.9% | 52 |
| LAX PHX Los Angeles International Airport – Phoenix Sky Harbor International Airport | 595 | 4.1 min | 88.0% | 50 |
| PHX LAS Phoenix Sky Harbor International Airport – Harry Reid International Airport | 411 | 17.0 min | 61.1% | 36 |
| MCO LAX Orlando International Airport – Los Angeles International Airport | 3,562 | 24.7 min | 38.7% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 25 | 25 | 76.0% | 0 |
| December 2024 | 20 | 20 | 70.0% | 0 |
| January 2025 | 9 | 8 | 75.0% | 1 |
| February 2025 | 15 | 15 | 86.7% | 0 |
| March 2025 | 40 | 38 | 76.3% | 2 |
| April 2025 | 30 | 30 | 93.3% | 0 |
| May 2025 | 26 | 26 | 84.6% | 0 |
| June 2025 | 30 | 30 | 40.0% | 0 |
| July 2025 | 31 | 31 | 25.8% | 0 |
| August 2025 | 31 | 31 | 61.3% | 0 |
| September 2025 | 30 | 30 | 70.0% | 0 |
| October 2025 | 31 | 31 | 41.9% | 0 |
| November 2025 | 29 | 27 | 70.4% | 2 |
| December 2025 | 31 | 31 | 67.7% | 0 |
| January 2026 | 5 | 5 | 40.0% | 0 |
| February 2026 | 3 | 2 | 100.0% | 1 |
| March 2026 | 53 | 53 | 45.3% | 0 |
| April 2026 | 35 | 35 | 60.0% | 0 |
| May 2026 | 30 | 30 | 80.0% | 0 |
| June 2026 | 15 | 15 | 66.7% | 0 |
| July 2026 | 22 | 21 | 61.9% | 1 |