Cheapest one-way flights from London to San Juan in April from $713

AirHint found the following cheapest one-way flights from London (LCY) to San Juan (SJU) in April 2026 (see full year).

One-Way flights

16 Apr Vueling Airlines
30 Apr Vueling Airlines
13 Apr Iberia
17 Apr Iberia
06 Apr KLM
04 Apr KLM
24 Apr British Airways
26 Apr Iberia

Also check the deals for return flights from London to San Juan 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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