routeloads.
Route profile PHL-SEA

PHL ↔ SEA loads

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

LATEST 12-MONTH WINDOW

PHL to SEA averages 86% full

Philadelphia and Seattle: 86% average load factor, 428k passengers, and 500k seats across both directions in the latest 12-month BTS window.

Load factor
86%
Passengers
428k
Seats
500k

Monthly trend

MonthLoadPassengers
Aug 202595%48k
Sep 202589%40k
Oct 202582%36k
Nov 202579%25k
Dec 202584%28k
Jan 202675%18k
Feb 202675%15k
Mar 202686%23k
Apr 202683%34k
May 202684%48k
Jun 202686%53k
Jul 202693%60k