Baltimore (BWI) to Chicago (MDW) flights
Southwest Airlines flies nonstop from Baltimore/Washington International Thurgood Marshall Airport to Chicago Midway International Airport, with about 39 flights a week in July 2026. The 611-mile flight takes about 1h 56m gate to gate.
- Distance
- 611 mi · 983 km
- Flight time
- 1h 56m
- Airlines
- 1
- Seats filled
- 76%
Airlines flying BWI to MDW
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 39 | Boeing 737-700 / MAX 7, Boeing 737 MAX 8, Boeing 737-800 | 211,738 | 1h 56m |
| Frontier AirlinesSeasonal or ended | n/a | Airbus A320neo, Airbus A320-100/200 | 10,072 | 2h 1m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
BWI to MDW flight schedule
10 flight numbers flew this route in August 2026, 5 of them almost daily. The first usually leaves at 6:30am and the last at 8:00pm. 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) |
|---|---|---|---|---|
| WN 991Southwest Airlines | 6:30am | 7:30am | 24 | 87% |
| WN 769Southwest Airlines | 6:35am | 7:35am | 6 | n/a |
| WN 992Southwest Airlines | 8:25am | 9:30am | 26 | 85% |
| WN 4504Southwest Airlines | 9:05am | 10:05am | 4 | n/a |
| WN 1195Southwest Airlines | 1:10pm | 2:05pm | 24 | 54% |
| WN 3863Southwest Airlines | 3:15pm | 4:15pm | 14 | 85% |
| WN 104Southwest Airlines | 5:00pm | 6:00pm | 4 | n/a |
| WN 4002Southwest Airlines | 5:20pm | 6:15pm | 20 | 40% |
| WN 4821Southwest Airlines | 7:30pm | 8:30pm | 4 | n/a |
| WN 4094Southwest Airlines | 8:00pm | 9:00pm | 24 | 61% |
Is BWI to MDW on time?
From September 2025 to August 2026, 75% of 1,824 flights arrived within 15 minutes of schedule and 2.4% were cancelled. Flights leaving around 6am were the most punctual (93%), those around 8pm the least (52%). Most delay time was caused by late-arriving aircraft (45%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 1,768 | 75% | 16 min | 2.4% |
| Frontier Airlines | 56 | 76% | 15 min | 1.8% |
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 | 193 | 93% | |
| 7am to 8am | 144 | 87% | |
| 8am to 9am | 67 | 93% | |
| 9am to 10am | 103 | 78% | |
| 10am to 11am | 113 | 82% | |
| 11am to 12pm | 50 | 86% | |
| 12pm to 1pm | 84 | 76% | |
| 1pm to 2pm | 116 | 84% | |
| 2pm to 3pm | 91 | 76% | |
| 3pm to 4pm | 75 | 84% | |
| 4pm to 5pm | 128 | 77% | |
| 5pm to 6pm | 124 | 65% | |
| 6pm to 7pm | 78 | 55% | |
| 7pm to 8pm | 199 | 65% | |
| 8pm to 9pm | 117 | 52% | |
| 9pm to 10pm | 84 | 54% | |
| 10pm to 11pm | 58 | 60% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 182 | 24,793 | |
| September 2025 | 181 | 22,567 | |
| October 2025 | 184 | 23,673 | |
| November 2025 | 152 | 17,730 | |
| December 2025 | 137 | 16,823 | |
| January 2026 | 120 | 11,793 | |
| February 2026 | 113 | 11,217 | |
| March 2026 | 120 | 14,229 | |
| April 2026 | 130 | 15,572 | |
| May 2026 | 140 | 17,859 | |
| June 2026 | 168 | 22,436 | |
| July 2026 | 173 | 23,118 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.