routeloads.
Route profile IAD-SAN

IAD ↔ SAN loads

How full flights are between Dulles and San Diego, both directions combined, using the latest 12 months of DOT T-100 data ending Apr 2026.

LATEST 12-MONTH WINDOW

IAD to SAN averages 84% full

Dulles and San Diego: 84% average load factor, 421k passengers, and 502k seats across both directions in the latest 12-month BTS window.

Load factor
84%
Passengers
421k
Seats
502k

Monthly trend

MonthLoadPassengers
May 202579%41k
Jun 202591%38k
Jul 202591%39k
Aug 202585%37k
Sep 202579%33k
Oct 202583%35k
Nov 202582%33k
Dec 202583%36k
Jan 202676%29k
Feb 202681%29k
Mar 202687%36k
Apr 202689%35k