Cheapest return flights from Ontario to Barcelona in March from $845

AirHint found the following cheapest return flights from Ontario (ONT) to Barcelona (BCN) in March 2026 (see full year).

Return flights

23 Mar - 09 Apr British Airways
24 Mar - 28 Apr British Airways
17 Mar - 24 Mar British Airways
24 Mar - 09 Apr British Airways
30 Mar - 08 Apr British Airways
03 Mar - 10 Mar British Airways
03 Mar - 12 Mar British Airways
04 Mar - 12 Mar British Airways
31 Mar - 13 Apr British Airways
31 Mar - 07 Apr British Airways
10 Mar - 24 Mar British Airways
29 Mar - 05 Apr Frontier Airlines
04 Mar - 08 Mar British Airways
23 Mar - 10 Apr British Airways
03 Mar - 19 Mar British Airways
02 Mar - 09 Mar Iberia
28 Mar - 04 Apr British Airways
22 Mar - 30 Mar British Airways
01 Mar - 08 Mar British Airways
20 Mar - 03 Apr British Airways

Also check the deals for one-way flights from Ontario to Barcelona in March.

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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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