AirHint found the following cheapest return flights from Chicago (MDW) to Bucharest (OTP) in April 2026 (see full year).
Return flights
| 27 Apr - 04 May | Frontier Airlines | ||
| 15 Apr - 23 Apr | Delta | ||
| 26 Apr - 03 May | Frontier Airlines | ||
| 08 Apr - 12 Apr | Delta | ||
| 30 Apr - 25 May | Delta | ||
| 16 Apr - 19 Apr | Delta |
Also check the deals for one-way flights from Chicago to Bucharest in April.
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