Cheapest one-way flights from Ontario to London in June from 955€

AirHint found the following cheapest one-way flights from Ontario (ONT) to London (LGW) in June 2026 (see full year).

One-Way flights

03 Jun British Airways
01 Jun British Airways
11 Jun British Airways
18 Jun Iberia
10 Jun British Airways
27 Jun British Airways
30 Jun British Airways
13 Jun British Airways
21 Jun British Airways
16 Jun British Airways

Also check the deals for return flights from Ontario to London 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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