AirHint found the following cheapest one-way flights from Ontario (ONT) to London (LHR) in June 2026 (see full year).
One-Way flights
| 07 Jun | jetBlue | ||
| 01 Jun | jetBlue | ||
| 09 Jun | jetBlue | ||
| 10 Jun | Virgin Atlantic | ||
| 29 Jun | Virgin Atlantic | ||
| 23 Jun | Alaska Airlines | ||
| 03 Jun | Virgin Atlantic | ||
| 17 Jun | KLM | ||
| 16 Jun | KLM | ||
| 21 Jun | Virgin Atlantic |
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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