Route
AUS → MDW
Austin Bergstrom International Airport Chicago Midway International Airport
How punctual is this route?
- On-time arrivals
- 75.5%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 58 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,349
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 48%
- Airline (crew, maintenance, cleaning) 28%
- Air traffic control & airport 22%
- Extreme weather 2%
- Security 1%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 88.5% | 104 |
| October 2025 | 83.8% | 136 |
| November 2025 | 81.0% | 103 |
| December 2025 | 78.8% | 104 |
| January 2026 | 85.1% | 88 |
| February 2026 | 84.9% | 87 |
| March 2026 | 60.2% | 106 |
| April 2026 | 80.5% | 124 |
| May 2026 | 76.3% | 131 |
| June 2026 | 64.0% | 129 |
| July 2026 | 60.9% | 130 |
| August 2026 | 67.0% | 107 |
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 | 1,349 | 75.5% | 0.9% | 58 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN2133
10% late · 63 flights
-
WN360
83% late · 61 flights
-
WN1484
19% late · 60 flights
-
WN2234
29% late · 58 flights
-
WN398
5% late · 58 flights
-
WN403
31% late · 58 flights
-
WN400
43% late · 57 flights
-
WN4409
8% late · 53 flights
-
WN361
37% late · 52 flights
-
WN2225
10% late · 49 flights
-
WN417
24% late · 45 flights
-
WN4077
10% late · 43 flights
-
WN1851
10% late · 42 flights
-
WN356
13% late · 39 flights
-
WN359
44% late · 36 flights
-
WN485
30% late · 33 flights
-
WN719
6% late · 31 flights
-
WN735
20% late · 30 flights
-
WN1165
39% late · 28 flights
-
WN1240
61% late · 28 flights
-
WN690
11% late · 28 flights
-
WN724
4% late · 26 flights
-
WN399
4% late · 24 flights
-
WN2434
23% late · 23 flights
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