routeloads.
Route profile IAH-STL

IAH ↔ STL loads

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

LATEST 12-MONTH WINDOW

IAH to STL averages 76% full

Houston and St Louis: 76% average load factor, 184k passengers, and 242k seats across both directions in the latest 12-month BTS window.

Load factor
76%
Passengers
184k
Seats
242k

Monthly trend

MonthLoadPassengers
May 202576%19k
Jun 202576%19k
Jul 202587%14k
Aug 202578%15k
Sep 202567%16k
Oct 202570%17k
Nov 202571%15k
Dec 202584%15k
Jan 202680%14k
Feb 202681%13k
Mar 202681%14k
Apr 202673%13k