WN1849
WN1849 (Southwest Airlines) is a multi-stop service on 28 routes, busiest Baltimore to Chicago. Of 665 departures recorded from October 2024 to July 2026, 73.5% left on time, according to the US BTS.
- On-time departures73.5%of 665 flights
- Average delay13.6 min
- July 20269▼ 70.0%vs July 2025
- Cancelled1.4%
- Legs flown under this number28
according to the US BTS · Oct 12, 2024 → Jul 26, 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 | 27 | 31 | ▲ 14.8% |
| February | 26 | 28 | ▲ 7.7% |
| March | 67 | 23 | ▼ 65.7% |
| April | 48 | 31 | ▼ 35.4% |
| May | 45 | 36 | ▼ 20.0% |
| June | 30 | 11 | ▼ 63.3% |
| July | 30 | 9 | ▼ 70.0% |
| August | 31 | – | – |
| September | 28 | – | – |
| October | 23 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 273 | 169 | ▼ 38.1% |
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 | 88.0% | 86.2% | ▼ 2.0% |
| February | 69.2% | 96.3% | ▲ 39.1% |
| March | 92.5% | 71.4% | ▼ 22.8% |
| April | 77.1% | 45.2% | ▼ 41.4% |
| May | 71.1% | 13.9% | ▼ 80.5% |
| June | 73.3% | 70.0% | ▼ 4.5% |
| July | 80.0% | 100.0% | ▲ 25.0% |
| August | 80.7% | – | – |
| September | 71.4% | – | – |
| October | 40.9% | – | in progress |
| November | 76.7% | – | – |
| December | 64.5% | – | – |
| Year-to-date average (Jan–Jul) | 78.8% | 69.0% | ▼ 12.4% |
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 | 2 | 2 | 0.0% |
| February | 0 | 1 | – |
| March | 0 | 2 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 6 | ▲ 200.0% |
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 98.6% 656
- Cancelled 1.4% 9
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 26, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BWI ORD Baltimore/Washington International Thurgood Marshall Airport – Chicago O'Hare International Airport | 998 | 9.6 min | 78.9% | 92 |
| BNA MSY Nashville International Airport – Louis Armstrong New Orleans International Airport | 759 | 19.5 min | 68.8% | 64 |
| BWI DJT Baltimore/Washington International Thurgood Marshall Airport – President Donald J. Trump International Airport | 1,425 | 8.5 min | 78.0% | 59 |
| PHX SLC Phoenix Sky Harbor International Airport – Salt Lake City International Airport | 818 | 10.0 min | 74.1% | 58 |
| DEN DAL Denver International Airport – Dallas Love Field | 1,048 | 37.8 min | 31.6% | 57 |
| BWI MSY Baltimore/Washington International Thurgood Marshall Airport – Louis Armstrong New Orleans International Airport | 1,607 | 9.6 min | 76.8% | 56 |
| HOU BWI William P. Hobby Airport – Baltimore/Washington International Thurgood Marshall Airport | 2,003 | 4.3 min | 90.5% | 44 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 26 | 26 | 92.3% | 0 |
| November 2024 | 26 | 26 | 76.9% | 0 |
| December 2024 | 28 | 28 | 82.1% | 0 |
| January 2025 | 27 | 25 | 88.0% | 2 |
| February 2025 | 26 | 26 | 69.2% | 0 |
| March 2025 | 67 | 67 | 92.5% | 0 |
| April 2025 | 48 | 48 | 77.1% | 0 |
| May 2025 | 45 | 45 | 71.1% | 0 |
| June 2025 | 30 | 30 | 73.3% | 0 |
| July 2025 | 30 | 30 | 80.0% | 0 |
| August 2025 | 31 | 31 | 80.7% | 0 |
| September 2025 | 28 | 28 | 71.4% | 0 |
| October 2025 | 23 | 22 | 40.9% | 1 |
| November 2025 | 30 | 30 | 76.7% | 0 |
| December 2025 | 31 | 31 | 64.5% | 0 |
| January 2026 | 31 | 29 | 86.2% | 2 |
| February 2026 | 28 | 27 | 96.3% | 1 |
| March 2026 | 23 | 21 | 71.4% | 2 |
| April 2026 | 31 | 31 | 45.2% | 0 |
| May 2026 | 36 | 36 | 13.9% | 0 |
| June 2026 | 11 | 10 | 70.0% | 1 |
| July 2026 | 9 | 9 | 100.0% | 0 |