Please allow additional time if using shuttles to travel between the terminal, parking lots and rail station as shuttle delays are possible. Travelers should plan to arrive at the terminal 2 hours before scheduled domestic departure.

Construction Information

A/B Connector and Baggage Handling System Upgrade

HomeAt BWI Resources Construction Information

The largest capital project in the history of BWI Thurgood Marshall Airport is underway.

Rendering showing Southwest Airlines aircraft at aircraft gates currently under construction at BWI Marshall Airport The A/B Connector and Baggage Handling System is a large, multi-year project that will improve the passenger experience and provide updated facilities for Southwest Airlines, including an innovative baggage handling system. The $425 million program will improve the passenger experience and provide added capacity for Southwest Airlines to continue its growth. It is the largest terminal enhancement in the airport’s history.

The project will transform the customer experience by adding a direct connection between concourses, expanding airline holdrooms, creating new food and retail concession spaces, enhancing restrooms, and introducing a new, fully in-line baggage handling system for the airline.

By The Numbers

Biggest-ever capital project at BWI Marshall Airport


Investment to improve passenger experience


A substantial amount of work should be complete by late 2025

The Vision

This project solidifies BWI Marshall Airport as a major economic engine for Maryland and the National Capital Region.

360° Panorama

Enjoy this panoramic rendering of a marketplace located within the A/B Connector.