Cheapest return flights from San Juan to London in October from $579

AirHint found the following cheapest return flights from San Juan (SJU) to London (LHR) in October 2025 (see full year).

Return flights

07 Oct - 21 Oct KLM
14 Oct - 21 Oct British Airways
08 Oct - 15 Oct United
29 Oct - 05 Nov United
09 Oct - 12 Oct Delta
02 Oct - 09 Oct American Airlines
17 Oct - 24 Oct British Airways
20 Oct - 27 Oct United
23 Oct - 30 Oct United
06 Oct - 13 Oct United
12 Oct - 19 Oct United
26 Oct - 02 Nov United

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

Skyscanner

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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