<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script> <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <!------ Include the above in your HEAD tag ----------> Frontier Airlines operates from Terminal 5 at Chicago O’Hare Airport, specifically under the keyword "<a href="https://allairportsterminals.com/frontier-airlines/frontier-airlines-ord-terminal-chicago-ohare-international-airport/">Frontier Airlines Chicago O’Hare Airport Terminal</a>." Terminal 5, also known as the International Terminal, serves as the gateway for Frontier’s flights, offering a range of services for both domestic and international travelers. Within Terminal 5, passengers can access various amenities including dining options, duty-free shopping, and spacious waiting areas. Frontier Airlines provides easy check-in facilities and self-service kiosks, making the boarding process efficient. For transportation, Terminal 5 is well-connected with the Airport Transit System (ATS), which links to other terminals and parking facilities. Travelers should arrive at least two hours before their flight to ensure a smooth check-in and security process.