Cheapest return flights from Boston to London in April from 399€

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

Return flights

10 Apr - 12 Apr Air Canada
14 Apr - 22 Apr TAP
04 Apr - 19 Apr jetBlue direct
15 Apr - 29 Apr jetBlue
24 Apr - 30 Apr Lufthansa
22 Apr - 29 Apr Lufthansa
15 Apr - 22 Apr Lufthansa
18 Apr - 28 Apr Air Canada
12 Apr - 19 Apr Air Canada
20 Apr - 29 Apr Aer Lingus
30 Apr - 11 May Aer Lingus
20 Apr - 16 May Aer Lingus
29 Apr - 13 May Aer Lingus
13 Apr - 09 May United
30 Apr - 11 May British Airways direct
29 Apr - 13 May British Airways direct
17 Apr - 09 May Air Canada
15 Apr - 09 May British Airways direct
20 Apr - 16 May British Airways direct
13 Apr - 09 May British Airways direct

Also check the deals for one-way flights from Boston 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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