Route
SMF → MDW
Sacramento International Airport Chicago Midway International Airport
How punctual is this route?
- On-time arrivals
- 86.6%
- Less than 15 minutes late
- Cancelled
- 0.3%
- Of scheduled flights
- Average delay when late
- 47 min
- Flights arriving 15+ minutes late
- Flights tracked
- 674
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 50%
- Late-arriving aircraft 30%
- Air traffic control & airport 18%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 83.3% | 78 |
| October 2025 | 81.8% | 55 |
| November 2025 | 83.9% | 31 |
| December 2025 | 80.6% | 31 |
| January 2026 | 80.6% | 31 |
| February 2026 | 92.9% | 28 |
| March 2026 | 87.9% | 59 |
| April 2026 | 90.0% | 60 |
| May 2026 | 85.5% | 62 |
| June 2026 | 84.2% | 79 |
| July 2026 | 88.2% | 85 |
| August 2026 | 94.7% | 75 |
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 | 674 | 86.6% | 0.3% | 47 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN3802
8% late · 61 flights
-
WN2728
10% late · 59 flights
-
WN2093
6% late · 50 flights
-
WN3966
16% late · 50 flights
-
WN2485
7% late · 46 flights
-
WN3769
32% late · 43 flights
-
WN1048
16% late · 33 flights
-
WN3496
16% late · 31 flights
-
WN4523
6% late · 31 flights
-
WN3716
4% late · 28 flights
-
WN4488
11% late · 28 flights
-
WN872
14% late · 28 flights
-
WN3732
7% late · 27 flights
-
WN4267
26% late · 23 flights
-
WN5702
36% late · 22 flights
-
WN3715
5% late · 20 flights
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