Airports › Chicago (ORD) › April 2025
Airport month · April 2025
Chicago O'Hare International in April 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 April 2025, reporting carriers scheduled 26,136 domestic departures from Chicago O'Hare International (ORD). 80.9% left less than 15 minutes late and 79.4% reached their destination on time; 1.3% were cancelled.
Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so ORD departures were level with the national departure figure.
A year earlier, in April 2024, the airport had 23,646 departures with 81.3% leaving on time: a change of −0.4 points, with flights up 11%.
Flights arriving at ORD that month were on time 79.0% of the time (26,146 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 40%, air carrier 31% and national aviation system 24%.
- On time 79.4%
- Arrived 15+ minutes late 19.1%
- Cancelled 1.3%
- Diverted 0.2%
April 2025 against a year earlier, the airport's year and the nation
| Measure | Apr 2025 | Apr 2024 | ORD, 12 months to Jul 2026 | All reported flights, Apr 2025 |
|---|---|---|---|---|
| Departed on time | 80.9% | 81.3% | 71.4% | 80.6% |
| Arrived on time | 79.4% | 79.6% | 69.4% | 79.5% |
| Cancelled | 1.3% | 0.4% | 2.8% | 0.8% |
| Average departure delay (late minutes only) | 13.3 min | 13.7 min | 22.3 min | 14.1 min |
| Scheduled departures a day | 871 | 788 | 986 | 19,465 |
| Scheduled departures | 26,136 | 23,646 | 359,911 | 583,950 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| UA United Airlines | 8,011 | 31% | 80.8% | 3.7 min | 0.7% |
| OO SkyWest Airlines | 4,793 | 18% | 79.6% | 4.1 min | 1.5% |
| AA American Airlines | 4,407 | 17% | 76.5% | 7.5 min | 1.4% |
| MQ Envoy Air | 3,829 | 15% | 78.7% | 2.9 min | 1.7% |
| YX Republic Airline | 2,636 | 10% | 84.8% | -2.4 min | 1.6% |
| DL Delta Air Lines | 892 | 3% | 74.2% | 12.7 min | 1.1% |
| NK Spirit Airlines | 578 | 2% | 76.6% | 8.6 min | 0.7% |
| WN Southwest Airlines | 402 | 2% | 75.6% | 7.4 min | 1.2% |
| F9 Frontier Airlines | 290 | 1% | 65.2% | 19.4 min | 1.4% |
| AS Alaska Airlines | 213 | 1% | 81.7% | 2.3 min | 0.0% |
| B6 JetBlue Airways | 85 | 0% | 90.6% | 9.6 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| ORD–LGA | Chicago to New York | 963 | 78.2% | 5.4 min | 1.9% |
| ORD–DCA | Chicago to Washington | 546 | 78.9% | 10.4 min | 1.5% |
| ORD–LAX | Chicago to Los Angeles | 545 | 81.3% | 2.1 min | 0.9% |
| ORD–BOS | Chicago to Boston | 543 | 81.6% | 2.8 min | 1.3% |
| ORD–DTW | Chicago to Detroit | 533 | 82.4% | 1.9 min | 1.7% |
| ORD–PHX | Chicago to Phoenix | 533 | 81.2% | 2.1 min | 0.6% |
| ORD–DFW | Chicago to Dallas/Fort Worth | 522 | 69.3% | 11.4 min | 2.7% |
| ORD–MSP | Chicago to Minneapolis | 509 | 69.0% | 14.8 min | 0.2% |
| ORD–EWR | Chicago to Newark | 502 | 60.4% | 31.4 min | 2.4% |
| ORD–ATL | Chicago to Atlanta | 501 | 74.1% | 10.9 min | 2.0% |
| ORD–DEN | Chicago to Denver | 493 | 74.0% | 10.9 min | 0.4% |
| ORD–MCO | Chicago to Orlando | 480 | 82.9% | 1.9 min | 0.6% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left ORD on time in April 2025?
80.9% of 26,136 scheduled domestic departures left less than 15 minutes late, and 79.4% reached their destination on time. The national figures that month were 80.6% and 79.5%.
How does that compare with a year earlier?
In April 2024, 81.3% of 23,646 departures left on time and 0.4% were cancelled, against 80.9% and 1.3% in April 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for ORD · methodology · corrections.