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

Return flights

07 Jul - 21 Aug	Icelandair
05 Jul - 14 Aug	Icelandair
07 Jul - 14 Aug	Icelandair
07 Jul - 21 Aug	United	direct
07 Jul - 14 Aug	United	direct
21 Jul - 16 Aug	United	direct
05 Jul - 14 Aug	United	direct
14 Jul - 28 Jul	SWISS
04 Jul - 18 Jul	Icelandair
04 Jul - 11 Jul	jetBlue
30 Jul - 06 Aug	Icelandair
28 Jul - 06 Aug	Icelandair
30 Jul - 06 Aug	United	direct
15 Jul - 26 Jul	Icelandair
14 Jul - 26 Jul	TAP
10 Jul - 17 Jul	Icelandair
12 Jul - 19 Jul	Icelandair
16 Jul - 23 Jul	United	direct
08 Jul - 15 Jul	United	direct
10 Jul - 24 Jul	Icelandair

Also check the deals for one-way flights from Chicago to Frankfurt 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 Frankfurt in July from $600

Return flights