Terminal Expansion Program

MidAmerica St. Louis Airport Terminal Expansion Program

The MidAmerica St. Louis Airport (BLV) is undergoing an incredible transformation. The improvements will support passenger growth and make the BLV travel experience much more convenient and comfortable.

Program Benefits

  • 41,000 square foot expansion nearly doubles the size of the terminal
  • New, larger TSA checkpoint on the first floor
  • Expanded departure lounge with additional concessions space, new furniture, and business work area style lounge section
  • New animal relief area in the departure lounge
  • New family restroom in the departure lounge
  • Accessibility improvements, including recessing fixtures, larger elevator, visual paging, and accessible seating
  • Two additional boarding bridges and improvements to existing boarding bridges
  • New storm shelter
  • Baggage handling system improvements
  • Security enhancements
  • Water bottle filling stations

Project Timeline

December 2019
Phase 1
Created infrastructure to support the expansion
December 2019
September 2020
Phase 2
Developed the new terminal expansion structure
September 2020
March 2022
Phase 3
Developing the interior of the new terminal structure and providing renovations to the existing terminal
March 2022
Spring 2023
Phase 4
Development of a new international arrivals facility
Spring 2023

Frequently Asked Questions

Since the airport opened its doors 25 years ago, it has become an increasingly popular travel choice for the Metro St. Louis region. This terminal expansion program will provide more room for passengers as well as the opportunity for airlines to provide more service—including international routes.

The terminal expansion program is being funded primarily through federal grant dollars. The Federal Aviation Administration is funding approximately 75% of the funding, with 20% coming from the state, and a 5% local match.

Yes. Two new gates are being added as part of the program, which will allow MidAmerica St. Louis Airport to serve more flights and provide additional hold room space with powered seating.

The terminal expansion program is a multi-year phased project that began in 2019 with the development of the infrastructure to support the terminal addition. Phase 2 started in 2020 and provided the structure for the new part of the terminal. Phase 3, which began in 2022 is expected to be complete in summer 2023, provides renovations to the existing terminal and builds out the interior of the terminal expansion. Phase 4 is anticipated to begin in the spring 2023 and includes the development of a US Customs international arrivals facility.

The new addition will be opened in phases during the spring and summer of 2023. We will provide updates to this web page and on our Facebook page as we get closer to opening.

The terminal expansion program was designed with the customer in mind. It will provide an expanded TSA checkpoint, new meeting rooms, new restrooms, a new nursing room, new pet relief area, technology and accessibility improvements, and furniture, fixture, and finish improvements such as new flooring and powered seating.

As there may be construction efforts that impact travelers, such as a brief period of changes in elevator access, special escort services will be available upon request for elevator access. There will be signage in the terminal providing additional instructions during these periods.

The terminal expansion program was designed to minimize impacts to travelers. Construction has been phased in a way that allows us to operate normally throughout the development.

The phased approach of the terminal expansion program ensures that there will always be at least two gates in service, and there will not be impacts to the number of flights.

The general contractor for the terminal expansion program is Holland Construction Services. Holland is responsible for hiring during construction, and all job opportunities will be available on the firm’s website https://www.hollandcs.com/subcontractors.


Details are approximate and subject to change.

In the News

MidAmerica celebrates 25 years

The MidAmerica St. Louis Airport in Mascoutah celebrates its 25th anniversary today (Wednesday). Completed on May 8, 1998, after an approximately 15-year endeavor to bring the

Read More »

Newsletter sign up

Enter your email address to receive updates from BLV.