AirHint found the following cheapest return flights from Kansas City (MCI) to Barcelona (BCN) in October 2025 (see full year).

Return flights

23 Oct - 30 Oct	Spirit Airlines
01 Oct - 08 Oct	KLM
26 Oct - 31 Oct	Spirit Airlines
07 Oct - 14 Oct	United
28 Oct - 04 Nov	United
04 Oct - 11 Oct	United
18 Oct - 25 Oct	United
13 Oct - 20 Oct	United
10 Oct - 17 Oct	United

Also check the deals for one-way flights from Kansas City to Barcelona in October.

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 Kansas City to Barcelona in October from 423€

Return flights