LATEST 12-MONTH WINDOW
BOS to MDW averages 86% full
Boston and Chicago: 86% average load factor, 395k passengers, and 458k seats across both directions in the latest 12-month BTS window.
Load factor
86%
Passengers
395k
Seats
458k
Monthly trend
| Month | Load | Passengers |
|---|---|---|
| May 2025 | 91% | 32k |
| Jun 2025 | 88% | 47k |
| Jul 2025 | 90% | 51k |
| Aug 2025 | 94% | 42k |
| Sep 2025 | 87% | 37k |
| Oct 2025 | 89% | 41k |
| Nov 2025 | 86% | 25k |
| Dec 2025 | 83% | 26k |
| Jan 2026 | 74% | 17k |
| Feb 2026 | 76% | 15k |
| Mar 2026 | 82% | 30k |
| Apr 2026 | 83% | 33k |