Cheapest one-way flights from Ottawa to London in May from $385

AirHint found the following cheapest one-way flights from Ottawa (YOW) to London (LHR) in May 2026 (see full year).

One-Way flights

03 May WestJet
04 May WestJet
27 May WestJet
26 May WestJet
02 May WestJet
01 May Porter Airlines (Canada) Ltd
09 May Porter Airlines (Canada) Ltd
13 May Aer Lingus
15 May Porter Airlines (Canada) Ltd
04 May Air Canada direct

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

Powered by

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.

Book a cheap hotel in London

Cheap car rent in London

Feel free to contact us with any feedback or request another flight research.