AirHint found the following cheapest return flights from Chicago (ORD) to Rome (FCO) in July 2025 (see full year).

Return flights

29 Jul - 05 Aug	Delta
28 Jul - 03 Aug	Icelandair
31 Jul - 07 Aug	KLM
30 Jul - 06 Aug	Air Canada
31 Jul - 04 Aug	Air France
27 Jul - 07 Aug	United	direct
27 Jul - 08 Aug	United	direct
30 Jul - 05 Aug	United
28 Jul - 03 Aug	United	direct
29 Jul - 11 Aug	SWISS
29 Jul - 31 Jul	Spirit Airlines
29 Jul - 31 Jul	British Airways	direct

Also check the deals for one-way flights from Chicago to Rome in July.

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 Chicago to Rome in July from 602€

Return flights