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

Return flights

04 Oct - 18 Oct	WestJet
03 Oct - 12 Oct	WestJet
03 Oct - 11 Oct	WestJet
24 Oct - 01 Nov	WestJet
24 Oct - 02 Nov	WestJet
25 Oct - 01 Nov	WestJet
14 Oct - 01 Nov	WestJet
30 Oct - 02 Nov	WestJet
07 Oct - 15 Oct	WestJet
07 Oct - 01 Nov	WestJet
18 Oct - 25 Oct	WestJet
11 Oct - 25 Oct	WestJet
04 Oct - 26 Oct	WestJet
02 Oct - 08 Oct	WestJet
22 Oct - 11 Nov	WestJet
08 Oct - 14 Oct	WestJet
07 Oct - 21 Oct	WestJet
21 Oct - 11 Nov	WestJet

Also check the deals for one-way flights from Hamilton 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 Hamilton to Barcelona in October from $853

Return flights