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O’Hare 21 is Chicago's vision for a modern airport that will be an efficient and accessible international gateway to the world and to Chicago.
Through this $8.5 billion project, O'Hare will be transformed from curb to gate and meet the needs of the traveling public through the 21st century and beyond.
O'Hare Global Terminal:
Vision for a new Terminal 2
Terminal 5:
Building a Global Gateway
Satellite Concourses:
Vision for two new satellite concourses

O’Hare 21 is the biggest expansion effort in O’Hare’s 60 year history. O’Hare is constantly evolving from building space for more gates, better amenities and travel options in order to streamline and enhance the passenger experience from curb to gate.

Ongoing O’Hare 21 projects will:

  • Expand travel options by increasing gate capacity and airline competition
  • Reduce security wait times with new security screening checkpoints that integrate the latest screening technology
  • Improve screening and sorting of passenger baggage by replacing baggage handling systems
  • Reduces airfield congestion and ground delays by improving aircraft parking positions and capabilities