Buffalo (BUF) to Chicago (MDW) flights
Southwest Airlines flies nonstop from Buffalo Niagara International Airport to Chicago Midway International Airport, with about 20 flights a week in July 2026. The 468-mile flight takes about 1h 38m gate to gate.
- Distance
- 468 mi · 753 km
- Flight time
- 1h 38m
- Airlines
- 1
- Seats filled
- 81%
Airlines flying BUF to MDW
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 20 | Boeing 737-700 / MAX 7, Boeing 737 MAX 8, Boeing 737-800 | 104,039 | 1h 38m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
BUF to MDW flight schedule
7 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 8:00am and the last at 7:10pm. 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 3295Southwest Airlines | 8:00am | 8:35am | 4 | n/a |
| WN 766Southwest Airlines | 8:35am | 9:10am | 25 | 63% |
| WN 4911Southwest Airlines | 8:40am | 9:15am | 12 | 73% |
| WN 280Southwest Airlines | 11:45am | 12:20pm | 12 | 83% |
| WN 3991Southwest Airlines | 4:35pm | 5:15pm | 4 | n/a |
| WN 768Southwest Airlines | 7:00pm | 7:40pm | 6 | 54% |
| WN 3853Southwest Airlines | 7:10pm | 7:45pm | 20 | 25% |
Is BUF to MDW on time?
From September 2025 to August 2026, 75% of 829 flights arrived within 15 minutes of schedule and 1.6% were cancelled. Flights leaving around 6am were the most punctual (92%), those around 7pm the least (44%). Most delay time was caused by late-arriving aircraft (52%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 829 | 75% | 16 min | 1.6% |
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 |
|---|---|---|---|
| 5am to 6am | 37 | 87% | |
| 6am to 7am | 180 | 92% | |
| 7am to 8am | 40 | 95% | |
| 8am to 9am | 100 | 84% | |
| 11am to 12pm | 36 | 86% | |
| 12pm to 1pm | 73 | 76% | |
| 3pm to 4pm | 19 | 84% | |
| 4pm to 5pm | 49 | 61% | |
| 6pm to 7pm | 79 | 70% | |
| 7pm to 8pm | 104 | 44% | |
| 8pm to 9pm | 68 | 59% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 84 | 12,176 | |
| September 2025 | 82 | 10,874 | |
| October 2025 | 59 | 7,853 | |
| November 2025 | 53 | 6,046 | |
| December 2025 | 59 | 6,694 | |
| January 2026 | 30 | 3,521 | |
| February 2026 | 30 | 3,220 | |
| March 2026 | 74 | 8,604 | |
| April 2026 | 81 | 9,141 | |
| May 2026 | 82 | 10,036 | |
| June 2026 | 88 | 12,444 | |
| July 2026 | 89 | 13,430 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.