Important: This destination may have COVID-19 travel restrictions in place, including specific restrictions for lodging. Check any national, local, and health advisories for this destination before you book.
Cheap Flights from Lambert-St. Louis Intl. to O'Hare Intl.
Prices were available within the past 7 days and starts at $34 for one-way flights and $78 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.