Route
MDW → PIT
Chicago Midway International Airport Pittsburgh International Airport
How punctual is this route?
- On-time arrivals
- 80.3%
- Less than 15 minutes late
- Cancelled
- 1.3%
- Of scheduled flights
- Average delay when late
- 59 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,096
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 53%
- Airline (crew, maintenance, cleaning) 30%
- Air traffic control & airport 11%
- Extreme weather 5%
- Security 1%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 87.5% | 112 |
| October 2025 | 80.0% | 115 |
| November 2025 | 82.7% | 84 |
| December 2025 | 77.5% | 89 |
| January 2026 | 78.8% | 88 |
| February 2026 | 85.0% | 80 |
| March 2026 | 72.6% | 89 |
| April 2026 | 96.5% | 85 |
| May 2026 | 79.3% | 87 |
| June 2026 | 74.1% | 86 |
| July 2026 | 77.0% | 89 |
| August 2026 | 71.7% | 92 |
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 | 1,096 | 80.3% | 1.3% | 59 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN846
5% late · 61 flights
-
WN4211
47% late · 59 flights
-
WN1181
19% late · 58 flights
-
WN2155
15% late · 55 flights
-
WN1125
14% late · 49 flights
-
WN3245
19% late · 47 flights
-
WN3177
20% late · 46 flights
-
WN2866
26% late · 43 flights
-
WN2865
15% late · 42 flights
-
WN674
15% late · 41 flights
-
WN667
6% late · 36 flights
-
WN1905
39% late · 33 flights
-
WN2661
16% late · 33 flights
-
WN3878
19% late · 31 flights
-
WN2267
17% late · 30 flights
-
WN945
18% late · 28 flights
-
WN994
30% late · 28 flights
-
WN1399
7% late · 27 flights
-
WN2798
12% late · 26 flights
-
WN3876
19% late · 26 flights
-
WN2555
8% late · 25 flights
-
WN3108
4% late · 24 flights
-
WN1169
4% late · 23 flights
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