Airports › Chicago (MDW) › April 2026
Airport month · April 2026
Chicago Midway International in April 2026
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 April 2026, reporting carriers scheduled 6,282 domestic departures from Chicago Midway International (MDW). 76.4% left less than 15 minutes late and 76.6% reached their destination on time; 1.2% were cancelled.
Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so MDW departures were 2.7 points below the national departure figure.
A year earlier, in April 2025, the airport had 6,051 departures with 81.4% leaving on time: a change of −5.0 points, with flights up 4%.
Flights arriving at MDW that month were on time 78.3% of the time (6,281 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 41%, air carrier 31% and national aviation system 23%.
- On time 76.6%
- Arrived 15+ minutes late 22.1%
- Cancelled 1.2%
- Diverted 0.1%
April 2026 against a year earlier, the airport's year and the nation
| Measure | Apr 2026 | Apr 2025 | MDW, 12 months to Jul 2026 | All reported flights, Apr 2026 |
|---|---|---|---|---|
| Departed on time | 76.4% | 81.4% | 70.7% | 79.1% |
| Arrived on time | 76.6% | 81.7% | 73.9% | 78.9% |
| Cancelled | 1.2% | 0.5% | 1.5% | 0.9% |
| Average departure delay (late minutes only) | 12.9 min | 11.0 min | 16.5 min | 14.5 min |
| Scheduled departures a day | 209 | 202 | 202 | 19,931 |
| Scheduled departures | 6,282 | 6,051 | 73,744 | 597,919 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| WN Southwest Airlines | 5,925 | 94% | 76.2% | 6.4 min | 1.1% |
| F9 Frontier Airlines | 133 | 2% | 79.7% | 8.1 min | 2.3% |
| DL Delta Air Lines | 116 | 2% | 87.1% | -10.7 min | 1.7% |
| OO SkyWest Airlines | 90 | 1% | 82.2% | -3.5 min | 2.2% |
| G4 Allegiant Air | 18 | 0% | 88.9% | -6.8 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| MDW–ATL | Chicago to Atlanta | 291 | 83.8% | -4.6 min | 1.0% |
| MDW–PHX | Chicago to Phoenix | 251 | 67.7% | 14.0 min | 0.8% |
| MDW–MSP | Chicago to Minneapolis | 220 | 81.4% | 1.6 min | 1.8% |
| MDW–MCO | Chicago to Orlando | 218 | 79.8% | 6.4 min | 0.5% |
| MDW–LGA | Chicago to New York | 196 | 67.3% | 10.7 min | 1.0% |
| MDW–LAS | Chicago to Las Vegas | 193 | 75.6% | 8.3 min | 1.6% |
| MDW–DCA | Chicago to Washington | 173 | 70.5% | 9.6 min | 0.6% |
| MDW–DAL | Chicago to Dallas | 172 | 78.5% | 1.6 min | 2.3% |
| MDW–MCI | Chicago to Kansas City | 172 | 80.2% | 2.8 min | 1.2% |
| MDW–BNA | Chicago to Nashville | 166 | 82.5% | 1.7 min | 1.8% |
| MDW–DEN | Chicago to Denver | 161 | 72.0% | 12.5 min | 1.2% |
| MDW–STL | Chicago to St. Louis | 151 | 84.1% | -0.7 min | 1.3% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left MDW on time in April 2026?
76.4% of 6,282 scheduled domestic departures left less than 15 minutes late, and 76.6% reached their destination on time. The national figures that month were 79.1% and 78.9%.
How does that compare with a year earlier?
In April 2025, 81.4% of 6,051 departures left on time and 0.5% were cancelled, against 76.4% and 1.2% in April 2026.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2026; 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.