Cheapest return flights from Boston to London in October from $501

AirHint found the following cheapest return flights from Boston (BOS) to London (LHR) in October 2026 (see full year).

Return flights

08 Oct - 13 Oct Aer Lingus
03 Oct - 10 Oct Aer Lingus
08 Oct - 18 Oct Aer Lingus
08 Oct - 11 Oct Air Canada
14 Oct - 21 Oct Air Canada
06 Oct - 15 Oct Air Canada
15 Oct - 18 Oct Aer Lingus
09 Oct - 17 Oct Aer Lingus
08 Oct - 18 Oct Finnair direct
15 Oct - 25 Oct Iberia

Also check the deals for one-way flights from Boston to London in October.

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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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