AirHint found the following cheapest return flights from St. Louis (STL) to Rome (FCO) in March 2026 (see full year).

Return flights

18 Mar - 24 Mar	Lufthansa
14 Mar - 23 Mar	Air Canada
13 Mar - 04 Apr	United

Also check the deals for one-way flights from St. Louis to Rome in March.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from St. Louis to Rome in March from 539€

Return flights