Cheapest return flights from Ottawa to London in April from $676

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

Return flights

27 Apr - 04 May Virgin Atlantic
06 Apr - 30 May Lufthansa direct
27 Apr - 21 May Lufthansa direct
26 Apr - 20 May Air Canada
12 Apr - 20 Apr Air France
17 Apr - 26 Apr WestJet
24 Apr - 06 May Porter Airlines (Canada) Ltd
24 Apr - 05 May Porter Airlines (Canada) Ltd
11 Apr - 20 Apr KLM
13 Apr - 20 Apr KLM
08 Apr - 07 May KLM
09 Apr - 08 May KLM
25 Apr - 07 May KLM
04 Apr - 16 May Air Canada
01 Apr - 08 Apr Air Canada
10 Apr - 19 Apr KLM
02 Apr - 09 Apr KLM
01 Apr - 09 Apr KLM
06 Apr - 13 Apr Lufthansa direct
22 Apr - 29 Apr Lufthansa direct

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

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