LATEST 12-MONTH WINDOW
IAD to SJO averages 77% full
Dulles and San José (Alajuela): 77% average load factor, 29k passengers, and 38k seats across both directions in the latest 12-month BTS window.
Load factor
77%
Passengers
29k
Seats
38k
Monthly trend
| Month | Load | Passengers |
|---|---|---|
| Jul 2025 | 80% | 5k |
| 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 |