Cheapest return flights from Chicago to Bucharest in May from $597

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

Return flights

04 May - 11 May Air France
02 May - 09 May Air France
20 May - 27 May Frontier Airlines
03 May - 10 May KLM
01 May - 08 May Virgin Atlantic
29 May - 05 Jun Porter Airlines (Canada) Ltd
26 May - 02 Jun Porter Airlines (Canada) Ltd
31 May - 07 Jun Porter Airlines (Canada) Ltd
30 May - 06 Jun Porter Airlines (Canada) Ltd
21 May - 28 May WestJet
19 May - 26 May KLM
24 May - 31 May Air France
24 May - 12 Jun Condor
28 May - 04 Jun Condor
27 May - 03 Jun Delta
23 May - 29 May Delta

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

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