AirHint found the following cheapest return flights from Chicago (MDW) to Budapest (BUD) in October 2025 (see full year).
Return flights
| 18 Oct - 28 Oct | Delta | ||
| 28 Oct - 31 Oct | Frontier Airlines | ||
| 26 Oct - 29 Oct | Frontier Airlines | ||
| 31 Oct - 22 Nov | KLM | ||
| 20 Oct - 15 Nov | KLM | ||
| 25 Oct - 29 Oct | Delta | ||
| 18 Oct - 24 Oct | Frontier Airlines |
Also check the deals for one-way flights from Chicago to Budapest in October.
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