Layover calculator — Chicago O'Hare International Airport (ORD)

Enter your connection details below. The estimate uses known terminal connections, security re-check rules, and facility locations — each backed by sources and a last-verified date. Where data is missing the result says so instead of guessing.

The interactive calculator needs JavaScript. Terminal connection times and facility data are still visible on the main ORD page.

Known terminal connections at ORD

No verified terminal connection data yet — the calculator will mark transfer time as unknown.

Security re-check is stated per terminal pair from the same verified records as the ORD transfer table. Buffers: +30 min re-clearing security, +60 min immigration and customs (site-default heuristics ).