LATEST 12-MONTH WINDOW
IAD to LHR averages 77% full
Dulles and London: 77% average load factor, 808k passengers, and 1.0M seats across both directions in the latest 12-month BTS window.
Load factor
77%
Passengers
808k
Seats
1.0M
Monthly trend
| Month | Load | Passengers |
|---|---|---|
| Jul 2025 | 89% | 90k |
| Aug 2025 | 81% | 85k |
| Sep 2025 | 71% | 74k |
| Oct 2025 | 72% | 71k |
| Nov 2025 | 73% | 56k |
| Dec 2025 | 81% | 63k |
| Jan 2026 | 71% | 50k |
| Feb 2026 | 62% | 39k |
| Mar 2026 | 78% | 61k |
| Apr 2026 | 75% | 67k |
| May 2026 | 80% | 73k |
| Jun 2026 | 87% | 78k |