Cheapest return flights from Ottawa to London in May from 477€

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

Return flights

20 May - 08 Jun WestJet
05 May - 12 May WestJet
22 May - 29 May Air Transat direct
15 May - 31 May Air Transat direct
15 May - 29 May Air Transat direct
31 May - 07 Jun Air Transat direct
05 May - 18 May WestJet
14 May - 18 May Air Transat
18 May - 27 May Air Transat
05 May - 19 May Air Transat
06 May - 19 May WestJet
06 May - 13 May WestJet
31 May - 13 Jun WestJet
27 May - 23 Jun Porter Airlines (Canada) Ltd

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

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