AirHint found the following cheapest one-way flights from Ontario (ONT) to Lisbon (LIS) in June 2026 (see full year).
One-Way flights
| 10 Jun | British Airways | ||
| 21 Jun | British Airways | ||
| 04 Jun | British Airways | ||
| 02 Jun | jetBlue | ||
| 01 Jun | British Airways | ||
| 22 Jun | British Airways | ||
| 23 Jun | British Airways | ||
| 19 Jun | British Airways |
Also check the deals for return flights from Ontario to Lisbon in June.
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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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