Cheapest return flights from Ottawa to London in April from 581€

Best time to book flights for Ottawa (YOW) to London (LHR) flights at AirHint

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

Return flights

19 Apr - 28 Apr WestJet
07 Apr - 21 Apr Air France
23 Apr - 30 Apr WestJet
18 Apr - 21 Apr KLM
22 Apr - 29 Apr WestJet
01 Apr - 08 Apr Air France
18 Apr - 27 Apr Air Canada
30 Apr - 31 May Air Canada
13 Apr - 20 Apr Air Canada
17 Apr - 23 Apr Air Canada
19 Apr - 26 Apr Air Canada
19 Apr - 15 May Air Canada
19 Apr - 03 May Lufthansa direct
25 Apr - 04 May Air Canada
30 Apr - 08 May Air Canada
17 Apr - 01 May Lufthansa
24 Apr - 03 May Air Canada
28 Apr - 04 May Air Canada
26 Apr - 11 May Air Canada
28 Apr - 23 May Lufthansa

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

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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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