AirHint found the following cheapest return flights from Hamilton (YHM) to London (LHR) in August 2025 (see full year).

Return flights

26 Aug - 12 Sep	WestJet
28 Aug - 23 Sep	WestJet
03 Aug - 10 Aug	Porter Airlines (Canada) Ltd
19 Aug - 05 Sep	WestJet
28 Aug - 10 Sep	WestJet
27 Aug - 09 Sep	WestJet
28 Aug - 04 Sep	WestJet
21 Aug - 13 Sep	WestJet
22 Aug - 20 Sep	WestJet
22 Aug - 05 Sep	WestJet
31 Aug - 12 Sep	WestJet
17 Aug - 24 Aug	Porter Airlines (Canada) Ltd
16 Aug - 23 Aug	Porter Airlines (Canada) Ltd
08 Aug - 12 Aug	WestJet
09 Aug - 12 Aug	WestJet
12 Aug - 25 Aug	WestJet
03 Aug - 25 Aug	WestJet
12 Aug - 27 Aug	WestJet
20 Aug - 27 Aug	WestJet
22 Aug - 25 Aug	WestJet

Also check the deals for one-way flights from Hamilton to London in August.

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 Hamilton to London in August from 1252€

Return flights