Cheapest return flights from Ottawa to London in April from $663

AirHint found the following cheapest return flights from Ottawa (YOW) to London (LGW) in April 2026 (see full year).

Return flights

30 Apr - 16 May WestJet
29 Apr - 07 May WestJet
03 Apr - 13 Apr WestJet
22 Apr - 30 Apr Porter Airlines (Canada) Ltd
15 Apr - 23 Apr Porter Airlines (Canada) Ltd
16 Apr - 02 May Air France
09 Apr - 08 May Porter Airlines (Canada) Ltd
22 Apr - 02 May Porter Airlines (Canada) Ltd
08 Apr - 07 May Porter Airlines (Canada) Ltd
02 Apr - 08 Apr Porter Airlines (Canada) Ltd
09 Apr - 09 May Porter Airlines (Canada) Ltd
10 Apr - 12 Apr Porter Airlines (Canada) Ltd

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

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