LATEST 12-MONTH WINDOW
IAD to SJO averages 76% full
Dulles and San José (Alajuela): 76% average load factor, 24k passengers, and 31k seats across both directions in the latest 12-month BTS window.
Load factor
76%
Passengers
24k
Seats
31k
Monthly trend
| Month | Load | Passengers |
|---|---|---|
| Aug 2025 | 63% | 3k |
| Nov 2025 | 86% | 2k |
| Dec 2025 | 69% | 6k |
| Jan 2026 | 72% | 6k |
| Feb 2026 | 95% | 2k |
| Mar 2026 | 92% | 3k |
| Apr 2026 | 89% | 2k |
| May 2026 | 93% | 155 |
| Jul 2026 | 87% | 145 |