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Compare airports
Put two to four airports side by side: the same metrics, from the same source, each measured over its own real reporting period.
ORD vs MDW
Each column is that side's own numbers, over that side's own real reporting period.
MDW is clearly ahead on 3 of 4 rates, ORD on 1.
A check mark and green mark the better figure in a row (higher for on-time rates, lower for delays and cancellations) when the gap is larger than chance would produce: a two-proportion test on each side’s flight count, at about 95% confidence. “Too close to call” rows differ by less than that. Average and median delay carry no sample-error estimate here, so they are marked by the printed figure alone.
ORD (Chicago): July 2023 – July 2026 · MDW (Chicago): July 2023 – July 2026
Source: FlyerIntel analysis of US DOT BTS data · Two entities can cover different real windows of history — a newer carrier, a discontinued route, an airport that only recently cleared the sample floor. The period above is what each side actually has, not a shared assumption.
Month by month
On-time arrival for each month, on one shared calendar, so a steady gap looks different from one bad season.
- ORD
- MDW
Show the monthly figures
| Month | ORD | MDW |
|---|---|---|
| July 2026 | 71.4% (33,010 flights) | 69.1% (7,279 flights) |
| June 2026 | 71.3% (31,374 flights) | 64.2% (6,937 flights) |
| May 2026 | 76.1% (33,733 flights) | 74.0% (6,269 flights) |
| April 2026 | 69.7% (33,206 flights) | 77.6% (6,282 flights) |
| March 2026 | 65.9% (31,373 flights) | 68.7% (6,508 flights) |
| February 2026 | 73.7% (25,538 flights) | 81.6% (4,537 flights) |
| January 2026 | 67.4% (25,131 flights) | 80.9% (4,848 flights) |
| December 2025 | 61.0% (27,790 flights) | 69.7% (5,738 flights) |
| November 2025 | 73.3% (28,703 flights) | 80.6% (5,620 flights) |
| October 2025 | 74.7% (31,096 flights) | 80.2% (6,536 flights) |
| September 2025 | 79.2% (28,867 flights) | 84.1% (6,459 flights) |
| August 2025 | 73.9% (30,090 flights) | 77.8% (6,731 flights) |
| July 2025 | 63.9% (30,503 flights) | 67.2% (7,531 flights) |
| June 2025 | 69.1% (29,641 flights) | 70.1% (7,187 flights) |
| May 2025 | 78.8% (27,990 flights) | 78.8% (6,128 flights) |
| April 2025 | 80.6% (26,136 flights) | 82.3% (6,051 flights) |
| March 2025 | 75.9% (24,580 flights) | 81.6% (6,106 flights) |
| February 2025 | 75.8% (19,989 flights) | 82.7% (4,741 flights) |
| January 2025 | 78.8% (21,643 flights) | 82.1% (5,189 flights) |
| December 2024 | 77.1% (22,668 flights) | 80.0% (5,949 flights) |
| November 2024 | 83.0% (22,435 flights) | 87.0% (5,901 flights) |
| October 2024 | 86.3% (25,211 flights) | 88.5% (6,744 flights) |
| September 2024 | 83.0% (24,847 flights) | 85.1% (6,849 flights) |
| August 2024 | 69.3% (25,500 flights) | 76.0% (7,199 flights) |
| July 2024 | 66.8% (24,531 flights) | 66.8% (7,884 flights) |
| June 2024 | 69.2% (24,207 flights) | 69.1% (7,537 flights) |
| May 2024 | 65.9% (24,845 flights) | 66.6% (6,973 flights) |
| April 2024 | 80.0% (23,646 flights) | 79.8% (6,791 flights) |
| March 2024 | 81.3% (22,288 flights) | 78.9% (6,684 flights) |
| February 2024 | 86.7% (19,553 flights) | 88.0% (5,236 flights) |
| January 2024 | 67.7% (20,321 flights) | 72.9% (5,886 flights) |
| December 2023 | 84.2% (20,664 flights) | 82.4% (6,836 flights) |
| November 2023 | 85.6% (20,354 flights) | 86.3% (6,745 flights) |
| October 2023 | 83.2% (22,812 flights) | 79.5% (7,653 flights) |
| September 2023 | 77.8% (22,384 flights) | 76.3% (7,109 flights) |
| August 2023 | 76.5% (23,347 flights) | 72.3% (7,890 flights) |
| July 2023 | 66.8% (22,796 flights) | 57.9% (7,942 flights) |
Source: FlyerIntel analysis of US DOT BTS data · Monthly figures are on-time arrival for the flights scheduled that month, from the same monthly aggregates that feed each page’s own trend chart.