Cheapest return flights from Ontario to London in April from $792

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 April 2025 (see full year).

Return flights

07 Apr - 16 Apr Iberia
08 Apr - 15 Apr Frontier Airlines
17 Apr - 24 Apr Frontier Airlines
06 Apr - 13 Apr Iberia
07 Apr - 27 Apr Iberia
20 Apr - 24 Apr Hawaiian Airlines

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

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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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