Airports › Chicago (MDW) › December 2024
Airport month · December 2024
Chicago Midway International in December 2024
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.
In December 2024, reporting carriers scheduled 5,949 domestic departures from Chicago Midway International (MDW). 75.1% left less than 15 minutes late and 79.3% reached their destination on time; 0.5% were cancelled.
Nationally that month, 77.8% of flights departed on time and 78.1% arrived on time, so MDW departures were 2.7 points below the national departure figure.
A year earlier, in December 2023, the airport had 6,836 departures with 76.2% leaving on time: a change of −1.1 points, with flights down 13%.
Flights arriving at MDW that month were on time 80.5% of the time (5,949 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 44%, air carrier 38% and national aviation system 15%.
- On time 79.3%
- Arrived 15+ minutes late 19.9%
- Cancelled 0.5%
- Diverted 0.4%
December 2024 against a year earlier, the airport's year and the nation
| Measure | Dec 2024 | Dec 2023 | MDW, 12 months to Jul 2026 | All reported flights, Dec 2024 |
|---|---|---|---|---|
| Departed on time | 75.1% | 76.2% | 70.7% | 77.8% |
| Arrived on time | 79.3% | 80.0% | 73.9% | 78.1% |
| Cancelled | 0.5% | 2.8% | 1.5% | 0.7% |
| Average departure delay (late minutes only) | 13.9 min | 15.0 min | 16.5 min | 16.6 min |
| Scheduled departures a day | 198 | 228 | 202 | 19,686 |
| Scheduled departures | 5,949 | 6,836 | 73,744 | 590,581 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| WN Southwest Airlines | 5,401 | 91% | 79.4% | 2.6 min | 0.5% |
| F9 Frontier Airlines | 250 | 4% | 78.0% | 2.7 min | 0.4% |
| OO SkyWest Airlines | 156 | 3% | 71.2% | 17.9 min | 1.3% |
| DL Delta Air Lines | 123 | 2% | 87.8% | -3.5 min | 0.0% |
| G4 Allegiant Air | 19 | 0% | 73.7% | 4.4 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| MDW–ATL | Chicago to Atlanta | 304 | 82.9% | 0.5 min | 0.0% |
| MDW–DEN | Chicago to Denver | 246 | 85.4% | -4.0 min | 0.4% |
| MDW–PHX | Chicago to Phoenix | 244 | 86.5% | -6.2 min | 0.0% |
| MDW–MCO | Chicago to Orlando | 231 | 78.8% | 3.1 min | 0.0% |
| MDW–LAS | Chicago to Las Vegas | 228 | 83.8% | -4.1 min | 0.0% |
| MDW–MSP | Chicago to Minneapolis | 228 | 79.4% | 11.0 min | 0.4% |
| MDW–LGA | Chicago to New York | 198 | 71.2% | 8.4 min | 2.0% |
| MDW–DAL | Chicago to Dallas | 194 | 72.7% | 10.5 min | 1.0% |
| MDW–DCA | Chicago to Washington | 172 | 79.7% | 5.0 min | 1.2% |
| MDW–MCI | Chicago to Kansas City | 171 | 81.9% | 1.8 min | 0.6% |
| MDW–BNA | Chicago to Nashville | 167 | 86.2% | 0.1 min | 0.0% |
| MDW–DTW | Chicago to Detroit | 166 | 75.9% | 6.2 min | 1.2% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left MDW on time in December 2024?
75.1% of 5,949 scheduled domestic departures left less than 15 minutes late, and 79.3% reached their destination on time. The national figures that month were 77.8% and 78.1%.
How does that compare with a year earlier?
In December 2023, 76.2% of 6,836 departures left on time and 2.8% were cancelled, against 75.1% and 0.5% in December 2024.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for December 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for MDW · methodology · corrections.