Fly from London to San Juan from €746 return. Mid-range pricing sits around €787, so you have a chance to land a decent fare with flexible dates. With 1 stopover, the journey is affordable for anyone keen to reach the Caribbean without breaking the bank.
Price and when to book
Flights from London to San Juan start from €746 return, with a median price hovering around €787. The most recent search was on 22 October 2026, so prices shift with availability. Booking ahead is key, especially during peak season (December–January or summer). Set up flight alerts and lock in your ticket early: the sooner you book, the better your chances of scoring a low fare.
Airline and stopovers
Norse Atlantic UK operates this route with 1 stopover. While not direct, it's a highly competitive budget option for crossing the Atlantic to San Juan. A single stop is standard for low-cost transatlantic connections and gives you a chance to stretch during a long journey.
Best time to visit
Puerto Rico enjoys warm weather year-round. The dry season runs from December to April, ideal weather, but also peak tourist season and higher prices. For cheaper fares, consider travelling outside those months, though you'll risk occasional tropical rain. Steer clear of hurricane season (June–November) if safety is a priority.
What to do when you arrive in San Juan
Old San Juan is unmissable: cobblestone streets, colourful colonial buildings, and historic forts. Nearby beaches like Isla Verde, plus day trips to Flamenco (Culebra) and Vieques' bioluminescent waters, are essential. El Yunque National Rainforest offers lush hiking, and Puerto Rican food, mofongo, alcapurrias, is reason alone to visit.
FAQ
What is the cheapest flight price from London to San Juan?
The lowest price found is €746 return. The median sits around €787, so that's a realistic baseline for your search. Prices vary by date and availability.
Is the London to San Juan flight direct?
No, there is 1 stopover. While not direct, it is the most affordable option with Norse Atlantic UK on this transatlantic route.
Which airline flies London to San Juan?
Norse Atlantic UK operates this service. It's a low-cost airline focused on transatlantic routes, so expect a bare-bones but reliable service model.
When is the best time to fly to San Juan?
December to April offers the best weather and warmest temperatures. However, prices peak then. If price matters more, look outside those months, but prepare for occasional tropical rain.
Photo: Wikimedia Commons. Return economy fares for 1 adult, checked on Kiwi.com on the date shown; they can change.