Route
MDW → BNA
Chicago Midway International Airport Nashville International Airport
How punctual is this route?
- On-time arrivals
- 79.2%
- Less than 15 minutes late
- Cancelled
- 1.4%
- Of scheduled flights
- Average delay when late
- 66 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,873
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 53%
- Airline (crew, maintenance, cleaning) 27%
- Air traffic control & airport 17%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 91.8% | 159 |
| October 2025 | 76.9% | 169 |
| November 2025 | 83.6% | 158 |
| December 2025 | 80.3% | 152 |
| January 2026 | 87.2% | 132 |
| February 2026 | 89.1% | 119 |
| March 2026 | 78.8% | 164 |
| April 2026 | 84.0% | 166 |
| May 2026 | 73.8% | 172 |
| June 2026 | 71.4% | 151 |
| July 2026 | 65.0% | 159 |
| August 2026 | 72.7% | 172 |
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 | 1,873 | 79.2% | 1.4% | 66 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN2959
29% late · 93 flights
-
WN1044
6% late · 64 flights
-
WN1325
29% late · 63 flights
-
WN4091
37% late · 60 flights
-
WN2284
11% late · 58 flights
-
WN3233
16% late · 58 flights
-
WN4389
5% late · 58 flights
-
WN2003
2% late · 57 flights
-
WN1073
52% late · 52 flights
-
WN2654
16% late · 50 flights
-
WN1048
9% late · 48 flights
-
WN1495
7% late · 47 flights
-
WN1124
11% late · 45 flights
-
WN2733
47% late · 43 flights
-
WN775
21% late · 42 flights
-
WN1401
26% late · 34 flights
-
WN3235
32% late · 34 flights
-
WN3038
41% late · 33 flights
-
WN3554
24% late · 33 flights
-
WN1057
29% late · 31 flights
-
WN1431
3% late · 31 flights
-
WN3234
23% late · 31 flights
-
WN3815
7% late · 28 flights
-
WN2161
7% late · 27 flights
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