Cheapest return flights from London to San Juan in October from 637€

Best time to book flights for London (LHR) to San Juan (SJU) flights at AirHint

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

Return flights

21 Oct - 28 Oct jetBlue
24 Oct - 02 Nov jetBlue
12 Oct - 26 Oct jetBlue
17 Oct - 26 Oct jetBlue
25 Oct - 02 Nov jetBlue
11 Oct - 26 Oct jetBlue
22 Oct - 01 Nov jetBlue
24 Oct - 26 Oct TAP
22 Oct - 26 Oct TAP

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