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

Return flights

18 Jan - 31 Jan	Air Canada
13 Jan - 24 Jan	Air Canada
16 Jan - 31 Jan	Air Canada
20 Jan - 14 Feb	Air Canada
16 Jan - 02 Feb	Air Canada
23 Jan - 07 Feb	Air Canada
21 Jan - 31 Jan	Air Canada
13 Jan - 22 Jan	Air Canada
20 Jan - 27 Jan	Air Canada
15 Jan - 28 Jan	Air Canada
20 Jan - 30 Jan	Air Canada
13 Jan - 27 Jan	Air Canada
22 Jan - 07 Feb	Air Canada
20 Jan - 17 Feb	Air Canada
30 Jan - 12 Feb	Air Canada
29 Jan - 14 Feb	Air Canada
22 Jan - 11 Feb	Air Canada
27 Jan - 05 Feb	Air Canada
23 Jan - 01 Feb	Air Canada
26 Jan - 31 Jan	jetBlue

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.

Book a cheap hotel in San Jose

Cheap car rent in San Jose

Cheapest return flights from London to San Jose in January from 631€

Return flights