Cheapest return flights from London to San Juan in May from 534€

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

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

Return flights

06 May - 15 May Fly Play
05 May - 15 May Fly Play
05 May - 11 May Fly Play
06 May - 09 May Fly Play
01 May - 11 May Fly Play
02 May - 06 May Ryanair
01 May - 04 May Ryanair
18 May - 25 May Fly Play
29 May - 02 Jun Fly Play
21 May - 01 Jun Ryanair
17 May - 24 May Ryanair
16 May - 24 May Fly Play

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

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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