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

Return flights

07 Nov - 29 Nov	Air Canada
05 Nov - 29 Nov	Air Canada
04 Nov - 29 Nov	Air Canada
03 Nov - 29 Nov	Air Canada
06 Nov - 29 Nov	Air Canada
16 Nov - 06 Dec	Air Canada
22 Nov - 29 Nov	Air Canada
18 Nov - 25 Nov	Air Canada
03 Nov - 08 Nov	Air Canada
27 Nov - 01 Dec	Air Canada
25 Nov - 09 Dec	Air Canada
30 Nov - 07 Dec	Air Canada
21 Nov - 24 Nov	WestJet
22 Nov - 14 Dec	Air Canada
02 Nov - 22 Nov	Air Canada
28 Nov - 20 Dec	Air France
29 Nov - 20 Dec	Air Canada
30 Nov - 20 Dec	Air Canada

Also check the deals for one-way flights from Ottawa to London in November.

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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Cheapest return flights from Ottawa to London in November from 520€

Return flights