Route
BDL → MDW
Bradley International Airport Chicago Midway International Airport
How punctual is this route?
- On-time arrivals
- 78.6%
- Less than 15 minutes late
- Cancelled
- 1.6%
- Of scheduled flights
- Average delay when late
- 73 min
- Flights arriving 15+ minutes late
- Flights tracked
- 837
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 44%
- Air traffic control & airport 33%
- Airline (crew, maintenance, cleaning) 21%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 94.5% | 73 |
| October 2025 | 83.5% | 79 |
| November 2025 | 85.2% | 56 |
| December 2025 | 76.7% | 60 |
| January 2026 | 91.4% | 37 |
| February 2026 | 92.3% | 42 |
| March 2026 | 80.8% | 79 |
| April 2026 | 75.3% | 79 |
| May 2026 | 76.9% | 78 |
| June 2026 | 72.8% | 82 |
| July 2026 | 67.5% | 85 |
| August 2026 | 64.4% | 87 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Southwest Airlines | 837 | 78.6% | 1.6% | 73 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN428
28% late · 113 flights
-
WN2108
16% late · 58 flights
-
WN4212
22% late · 52 flights
-
WN873
22% late · 46 flights
-
WN427
24% late · 43 flights
-
WN1596
0% late · 42 flights
-
WN202
19% late · 42 flights
-
WN588
39% late · 42 flights
-
WN2390
31% late · 33 flights
-
WN984
9% late · 33 flights
-
WN204
0% late · 27 flights
-
WN247
5% late · 22 flights
-
WN4569
15% late · 22 flights
-
WN958
14% late · 21 flights
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