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

Return flights

31 Jul - 16 Aug	Icelandair
08 Jul - 15 Jul	Air Canada
03 Jul - 17 Jul	Icelandair
20 Jul - 27 Jul	SWISS
27 Jul - 03 Aug	SWISS
13 Jul - 27 Jul	Icelandair
18 Jul - 25 Jul	Icelandair
26 Jul - 02 Aug	Icelandair
21 Jul - 28 Jul	United
15 Jul - 22 Jul	United
09 Jul - 16 Jul	United
29 Jul - 05 Aug	United
17 Jul - 24 Jul	United
11 Jul - 18 Jul	United
04 Jul - 02 Aug	Spirit Airlines
02 Jul - 09 Aug	Icelandair
31 Jul - 07 Aug	United

Also check the deals for one-way flights from Chicago to Bucharest 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 Bucharest in July from $777

Return flights