Cheapest one-way flights from Ottawa to London in October from $324

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

One-Way flights

08 Oct Porter Airlines (Canada) Ltd
06 Oct Porter Airlines (Canada) Ltd
07 Oct WestJet
12 Oct WestJet
13 Oct WestJet
05 Oct WestJet
09 Oct WestJet
15 Oct Porter Airlines (Canada) Ltd
11 Oct Porter Airlines (Canada) Ltd
16 Oct WestJet

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

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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