LATEST 12-MONTH WINDOW
IAD to ZRH averages 75% full
Dulles and Zurich: 75% average load factor, 228k passengers, and 304k seats across both directions in the latest 12-month BTS window.
Load factor
75%
Passengers
228k
Seats
304k
Monthly trend
| Month | Load | Passengers |
|---|---|---|
| Jul 2025 | 88% | 23k |
| Aug 2025 | 90% | 24k |
| Sep 2025 | 78% | 20k |
| Oct 2025 | 74% | 19k |
| Nov 2025 | 66% | 15k |
| Dec 2025 | 80% | 20k |
| Jan 2026 | 74% | 17k |
| Feb 2026 | 58% | 13k |
| Mar 2026 | 74% | 18k |
| Apr 2026 | 70% | 19k |
| May 2026 | 70% | 19k |
| Jun 2026 | 76% | 20k |