Cheapest return flights from Ottawa to London in June from $710

Best time to book flights for Ottawa (YOW) to London (LHR) flights at AirHint

AirHint found the following cheapest return flights from Ottawa (YOW) to London (LHR) in June 2025 (see full year).

Return flights

12 Jun - 19 Jun Air Canada
24 Jun - 26 Jul Air Canada
19 Jun - 03 Jul Air Canada direct
19 Jun - 23 Jul Air Canada direct
24 Jun - 01 Jul Air Canada
22 Jun - 05 Jul Air Canada
19 Jun - 07 Jul Air Canada direct
19 Jun - 26 Jul Air Canada
08 Jun - 24 Jun Air Canada
04 Jun - 18 Jun Lufthansa direct
02 Jun - 16 Jun Air Canada
22 Jun - 29 Jun Air Canada
23 Jun - 30 Jun Air Canada direct
23 Jun - 29 Jun Air Canada
24 Jun - 30 Jun Air Canada
01 Jun - 15 Jun Air Canada
16 Jun - 30 Jun Air Canada
25 Jun - 01 Jul Air Canada
25 Jun - 02 Jul Air Canada
26 Jun - 02 Jul Air Canada direct

Also check the deals for one-way flights from Ottawa 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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