Cheapest return flights from San Jose to London in April from $673

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

Return flights

08 Apr - 23 Apr British Airways
07 Apr - 23 Apr British Airways
07 Apr - 15 Apr British Airways
06 Apr - 22 Apr British Airways
07 Apr - 17 Apr British Airways
08 Apr - 15 Apr British Airways
15 Apr - 01 May British Airways
15 Apr - 05 May British Airways
06 Apr - 14 Apr British Airways
01 Apr - 14 Apr British Airways
05 Apr - 13 Apr British Airways
06 Apr - 13 Apr British Airways
29 Apr - 03 May British Airways

Also check the deals for one-way flights from San Jose 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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