routeloads.
Route profile IAD-SJO

IAD → SJO loads

How full flights are between Dulles and San José (Alajuela), using the latest 12 months of DOT T-100 data ending Mar 2026.

LATEST 12-MONTH WINDOW

IAD to SJO averages 75% full

Dulles to San José (Alajuela): 75% average load factor, 32k passengers, and 44k seats in the latest 12-month BTS window.

Load factor
75%
Passengers
32k
Seats
44k

Monthly trend

MonthLoadPassengers
Apr 202588%2k
Jun 202564%4k
Jul 202580%5k
Aug 202563%3k
Nov 202586%2k
Dec 202569%6k
Jan 202672%6k
Feb 202695%2k
Mar 202692%3k