Cheapest return flights from Chicago to Bucharest in May from $440

AirHint found the following cheapest return flights from Chicago (ORD) to Bucharest (OTP) in May 2026 (see full year).

Return flights

05 May - 12 May British Airways
06 May - 13 May British Airways
04 May - 11 May Air France
01 May - 08 May British Airways
03 May - 10 May British Airways
02 May - 09 May British Airways
08 May - 23 May LOT
18 May - 01 Jun Lufthansa
19 May - 26 May United
16 May - 23 May LOT
15 May - 29 May Lufthansa

Also check the deals for one-way flights from Chicago to Bucharest in May.

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