Route
LAX → MDW
Los Angeles International Airport Chicago Midway International Airport
How punctual is this route?
- On-time arrivals
- 76.7%
- Less than 15 minutes late
- Cancelled
- 0.5%
- Of scheduled flights
- Average delay when late
- 50 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,283
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 45%
- Late-arriving aircraft 37%
- Air traffic control & airport 18%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 89.7% | 116 |
| October 2025 | 78.2% | 119 |
| November 2025 | 80.6% | 106 |
| December 2025 | 79.8% | 115 |
| January 2026 | 84.5% | 97 |
| February 2026 | 83.3% | 84 |
| March 2026 | 66.7% | 105 |
| April 2026 | 74.3% | 103 |
| May 2026 | 74.5% | 106 |
| June 2026 | 72.5% | 110 |
| July 2026 | 63.2% | 116 |
| August 2026 | 74.3% | 106 |
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 | 1,283 | 76.7% | 0.5% | 50 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN2413
15% late · 61 flights
-
WN4545
21% late · 58 flights
-
WN991
17% late · 58 flights
-
WN2341
5% late · 57 flights
-
WN3374
15% late · 54 flights
-
WN734
49% late · 51 flights
-
WN4398
9% late · 44 flights
-
WN4541
64% late · 43 flights
-
WN1289
16% late · 40 flights
-
WN1777
5% late · 40 flights
-
WN3377
34% late · 36 flights
-
WN3173
6% late · 33 flights
-
WN493
23% late · 33 flights
-
WN1537
20% late · 32 flights
-
WN3067
45% late · 32 flights
-
WN3396
0% late · 31 flights
-
WN355
16% late · 31 flights
-
WN834
29% late · 31 flights
-
WN3041
23% late · 30 flights
-
WN2268
21% late · 28 flights
-
WN2358
11% late · 28 flights
-
WN1508
23% late · 26 flights
-
WN1510
71% late · 24 flights
-
WN2867
43% late · 24 flights
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Headlines found by Google News; stories open on the publisher's site.
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