routeloads.
Route profile IAD-LIS

IAD ↔ LIS loads

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

LATEST 12-MONTH WINDOW

IAD to LIS averages 89% full

Dulles and Lisbon: 89% average load factor, 287k passengers, and 322k seats across both directions in the latest 12-month BTS window.

Load factor
89%
Passengers
287k
Seats
322k

Monthly trend

MonthLoadPassengers
May 202591%28k
Jun 202590%30k
Jul 202590%31k
Aug 202591%31k
Sep 202591%30k
Oct 202590%29k
Nov 202589%20k
Dec 202584%20k
Jan 202685%10k
Feb 202682%9k
Mar 202687%21k
Apr 202688%27k