Cheapest return flights from Ontario to London in January from $537

Best time to book flights for Ontario (ONT) to London (LGW) flights at AirHint

AirHint found the following cheapest return flights from Ontario (ONT) to London (LGW) in January 2025 (see full year).

Return flights

19 Jan - 28 Jan Frontier Airlines
12 Jan - 26 Jan Frontier Airlines
12 Jan - 19 Jan Frontier Airlines
16 Jan - 19 Jan Frontier Airlines
06 Jan - 12 Jan Frontier Airlines
09 Jan - 12 Jan Frontier Airlines
05 Jan - 19 Jan Frontier Airlines
05 Jan - 09 Jan Frontier Airlines
05 Jan - 12 Jan Frontier Airlines

Also check the deals for one-way flights from Ontario to London in January.

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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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