AirHint found the following cheapest one-way flights from Ontario (ONT) to Barcelona (BCN) in October 2026 (see full year).
One-Way flights
| 12 Oct | British Airways | ||
| 21 Oct | Iberia | ||
| 17 Oct | Iberia | ||
| 10 Oct | British Airways | ||
| 09 Oct | British Airways | ||
| 01 Oct | Iberia | ||
| 14 Oct | Iberia | ||
| 08 Oct | Iberia | ||
| 27 Oct | Iberia |
Also check the deals for return flights from Ontario to Barcelona in October.
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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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