AirHint found the following cheapest return flights from Chicago (ORD) to Budapest (BUD) in August 2025 (see full year).

Return flights

03 Aug - 19 Aug	American Airlines
27 Aug - 03 Sep	SWISS
24 Aug - 07 Sep	SWISS
21 Aug - 28 Aug	United
21 Aug - 27 Aug	SWISS
24 Aug - 30 Aug	SWISS
24 Aug - 31 Aug	United
15 Aug - 22 Aug	United
31 Aug - 06 Sep	British Airways
08 Aug - 17 Aug	Air Canada
01 Aug - 15 Aug	Finnair
21 Aug - 31 Aug	SWISS
12 Aug - 18 Aug	SWISS
30 Aug - 06 Sep	United
29 Aug - 04 Sep	Turkish Airlines

Also check the deals for one-way flights from Chicago to Budapest in August.

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 Budapest in August from $498

Return flights