Airports › Chicago (MDW) › January 2025
Airport month · January 2025
Chicago Midway International in January 2025
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 January 2025, reporting carriers scheduled 5,189 domestic departures from Chicago Midway International (MDW). 79.7% left less than 15 minutes late and 80.4% reached their destination on time; 2.0% were cancelled.
Nationally that month, 79.3% of flights departed on time and 78.6% arrived on time, so MDW departures were level with the national departure figure.
A year earlier, in January 2024, the airport had 5,886 departures with 67.2% leaving on time: a change of +12.5 points, with flights down 12%.
Flights arriving at MDW that month were on time 81.3% of the time (5,188 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 35%, late-arriving aircraft 34% and national aviation system 27%.
- On time 80.4%
- Arrived 15+ minutes late 17.5%
- Cancelled 2.0%
- Diverted 0.1%
January 2025 against a year earlier, the airport's year and the nation
| Measure | Jan 2025 | Jan 2024 | MDW, 12 months to Jul 2026 | All reported flights, Jan 2025 |
|---|---|---|---|---|
| Departed on time | 79.7% | 67.2% | 70.7% | 79.3% |
| Arrived on time | 80.4% | 66.6% | 73.9% | 78.6% |
| Cancelled | 2.0% | 8.3% | 1.5% | 3.0% |
| Average departure delay (late minutes only) | 9.7 min | 17.8 min | 16.5 min | 14.0 min |
| Scheduled departures a day | 173 | 196 | 202 | 17,992 |
| Scheduled departures | 5,189 | 5,886 | 73,744 | 539,747 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| WN Southwest Airlines | 4,691 | 90% | 81.8% | -3.3 min | 1.9% |
| F9 Frontier Airlines | 204 | 4% | 57.8% | 13.8 min | 4.9% |
| OO SkyWest Airlines | 168 | 3% | 74.4% | 7.0 min | 0.0% |
| DL Delta Air Lines | 108 | 2% | 76.9% | -1.7 min | 5.6% |
| G4 Allegiant Air | 18 | 0% | 61.1% | 32.3 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| MDW–ATL | Chicago to Atlanta | 279 | 75.3% | 1.4 min | 5.7% |
| MDW–DEN | Chicago to Denver | 216 | 81.5% | -4.2 min | 0.0% |
| MDW–MCO | Chicago to Orlando | 211 | 85.8% | -3.3 min | 0.5% |
| MDW–MSP | Chicago to Minneapolis | 211 | 80.6% | 1.0 min | 0.5% |
| MDW–PHX | Chicago to Phoenix | 211 | 86.3% | -10.2 min | 0.5% |
| MDW–LGA | Chicago to New York | 201 | 79.6% | -1.9 min | 3.0% |
| MDW–LAS | Chicago to Las Vegas | 189 | 87.3% | -12.5 min | 0.0% |
| MDW–DCA | Chicago to Washington | 179 | 75.4% | -2.8 min | 8.9% |
| MDW–DTW | Chicago to Detroit | 172 | 72.7% | 7.9 min | 1.2% |
| MDW–DAL | Chicago to Dallas | 160 | 81.9% | -6.3 min | 3.1% |
| MDW–MCI | Chicago to Kansas City | 148 | 75.0% | -0.6 min | 6.8% |
| MDW–TPA | Chicago to Tampa | 145 | 80.7% | 1.3 min | 0.0% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left MDW on time in January 2025?
79.7% of 5,189 scheduled domestic departures left less than 15 minutes late, and 80.4% reached their destination on time. The national figures that month were 79.3% and 78.6%.
How does that compare with a year earlier?
In January 2024, 67.2% of 5,886 departures left on time and 8.3% were cancelled, against 79.7% and 2.0% in January 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for January 2025; 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.