Route
MDW → LAX
Chicago Midway International Airport Los Angeles International Airport
How punctual is this route?
- On-time arrivals
- 68.3%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 54 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,296
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 41%
- Late-arriving aircraft 40%
- Air traffic control & airport 17%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 75.9% | 116 |
| October 2025 | 72.3% | 119 |
| November 2025 | 77.0% | 106 |
| December 2025 | 65.2% | 115 |
| January 2026 | 72.9% | 97 |
| February 2026 | 67.9% | 84 |
| March 2026 | 69.3% | 105 |
| April 2026 | 64.4% | 103 |
| May 2026 | 66.3% | 106 |
| June 2026 | 52.8% | 110 |
| July 2026 | 71.6% | 116 |
| August 2026 | 63.9% | 119 |
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 | 1,296 | 68.3% | 0.9% | 54 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN2731
19% late · 57 flights
-
WN297
34% late · 57 flights
-
WN3290
54% late · 57 flights
-
WN2159
22% late · 55 flights
-
WN188
51% late · 52 flights
-
WN3364
65% late · 52 flights
-
WN2433
27% late · 51 flights
-
WN510
28% late · 47 flights
-
WN2397
33% late · 46 flights
-
WN4637
11% late · 36 flights
-
WN866
26% late · 34 flights
-
WN1468
53% late · 32 flights
-
WN2896
12% late · 32 flights
-
WN3316
32% late · 31 flights
-
WN3332
23% late · 31 flights
-
WN1487
30% late · 30 flights
-
WN2192
26% late · 28 flights
-
WN4743
54% late · 28 flights
-
WN4841
4% late · 28 flights
-
WN3562
21% late · 24 flights
-
WN898
55% late · 24 flights
-
WN899
9% late · 23 flights
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Headlines found by Google News; stories open on the publisher's site.
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