Cheapest return flights from London to San Juan in December from $824

AirHint found the following cheapest return flights from London (LON) to San Juan (SJU) in December 2026 (see full year).

Return flights

28 Dec - 18 Jan Iberia
30 Dec - 06 Jan Iberia
29 Dec - 12 Jan Iberia
04 Dec - 11 Dec Norse Atlantic Airways (UK)
16 Dec - 30 Dec Iberia
28 Dec - 09 Jan Wizz Air
28 Dec - 11 Jan Wizz Air
25 Dec - 09 Jan Iberia
04 Dec - 14 Dec Norse Atlantic Airways (UK)
15 Dec - 29 Dec Iberia
28 Dec - 04 Jan Iberia
27 Dec - 10 Jan Vueling Airlines
29 Dec - 05 Jan Iberia
26 Dec - 04 Jan Iberia
14 Dec - 20 Dec Iberia
09 Dec - 20 Dec Wizz Air UK
11 Dec - 20 Dec Wizz Air UK
20 Dec - 30 Dec Ryanair
08 Dec - 19 Dec Wizz Air UK
19 Dec - 30 Dec Ryanair

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

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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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