Cheapest one-way flights from Ontario to Barcelona in July from $276

AirHint found the following cheapest one-way flights from Ontario (ONT) to Barcelona (BCN) in July 2025 (see full year).

One-Way flights

22 Jul Frontier Airlines
27 Jul Frontier Airlines
31 Jul Frontier Airlines
24 Jul Frontier Airlines
09 Jul British Airways
01 Jul British Airways
28 Jul British Airways
29 Jul British Airways
16 Jul Iberia
06 Jul British Airways

Also check the deals for return flights from Ontario to Barcelona in July.

Skyscanner

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.

Book a cheap hotel in Barcelona

Cheap car rent in Barcelona

Feel free to contact us with any feedback or request another flight research.