Cheapest return flights from London to San Juan in December from $893

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

Return flights

14 Dec - 07 Jan Ryanair
04 Dec - 12 Dec Ryanair
28 Dec - 09 Jan Ryanair
29 Dec - 12 Jan Ryanair
28 Dec - 18 Jan Ryanair
04 Dec - 14 Dec Ryanair
09 Dec - 20 Dec Ryanair
15 Dec - 29 Dec Ryanair
29 Dec - 05 Jan Ryanair
18 Dec - 30 Dec Ryanair
26 Dec - 05 Jan Ryanair
12 Dec - 20 Dec Ryanair
05 Dec - 19 Dec Ryanair
18 Dec - 31 Dec Ryanair
19 Dec - 30 Dec Ryanair
18 Dec - 29 Dec Ryanair
31 Dec - 10 Jan Ryanair
30 Dec - 06 Jan Ryanair
22 Dec - 05 Jan Ryanair
27 Dec - 03 Jan Ryanair

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

Powered by

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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Feel free to contact us with any feedback or request another flight research.