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

Return flights

20 Jan - 14 Feb	Air Canada
22 Jan - 14 Feb	Air Canada
27 Jan - 14 Feb	Air Canada
15 Jan - 31 Jan	Air Canada
22 Jan - 31 Jan	Air Canada
20 Jan - 31 Jan	Air Canada
31 Jan - 14 Feb	British Airways
18 Jan - 31 Jan	Air Canada
23 Jan - 07 Feb	Air Canada
14 Jan - 24 Jan	Air Canada
15 Jan - 27 Jan	Air Canada
15 Jan - 29 Jan	Air Canada
13 Jan - 27 Jan	Virgin Atlantic
19 Jan - 03 Feb	Virgin Atlantic
19 Jan - 04 Feb	Virgin Atlantic
25 Jan - 02 Feb	Virgin Atlantic
12 Jan - 18 Jan	Air Canada
13 Jan - 20 Jan	Air Canada
28 Jan - 10 Feb	Air Canada
23 Jan - 10 Feb	Air Canada

Also check the deals for one-way flights from London to San Jose in January.

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 London to San Jose in January from 609€

Return flights