Cheapest one-way flights from Ottawa to London in June from $370

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

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

One-Way flights

02 Jun Air Transat
18 Jun WestJet
14 Jun WestJet
21 Jun Porter Airlines (Canada) Ltd
20 Jun WestJet
19 Jun WestJet
02 Jun Air Canada direct
14 Jun Lufthansa direct
21 Jun Air Canada direct
19 Jun Air Canada direct

Also check the deals for return flights from Ottawa to London in June.

Skyscanner

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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