Cheap flights from London to San Juan Puerto Rico from £494

from as little as £494

8 nights in San Juan Puerto Rico, departing London Heathrow on 28 / Oct / 2025 with JetBlue (price found 17 hours ago)

Subject to availability, prices correct of the last 24 hours
San Juan Puerto Rico

The London / San Juan Puerto Rico route

All 6749 km of it

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San Juan Puerto Rico flight facts

What you need to know

Alternative flights from the UK to San Juan Puerto Rico

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San Juan Puerto Rico

Today alone, Netflights has searched over 1,141 flights. 28 / Oct / 2025 is currently the lowest priced day of the year to fly the London/San Juan Puerto Rico route. There are around 259 flights on any given week from the UK to San Juan Puerto Rico and the cheapest month to fly right now is October.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)
LOWEST

21 °C

AVG

26 °C

HIGHEST

30 °C

Rainfall (mm)
LOWEST

69 mm

AVG

125.7 mm

HIGHEST

158 mm

Key facts about San Juan Puerto Rico

How to get cheap flights from London to San Juan Puerto Rico

Tips and advice from our flight experts

Book cheap flights from London to San Juan Puerto Rico with Netflights. We scan all 259 of the weekly flights going via San Juan Puerto Rico, so that you can compare them in one place. If you can’t find what you’re looking for, simply adjust the filters to widen your search.

Generally, London Heathrow (LHR) is the most popular choice for flights to San Juan Puerto Rico. And the most popular airlines are British Airways, Virgin Atlantic & Iberia Airlines. But when you fly is just as important as who you fly with. If you're flexible on dates, try searching by month to see when the cheapest flights are.

Last-minute deals can be cheaper, but it's risky. It's best to book flights to San Juan Puerto Rico in advance to avoid disappointment. JetBlue usually have the lowest prices, so keep an eye out for their flights. Flights from London to San Juan Puerto Rico generally take about 14 hrs 10 mins.

Today, we’ve scanned 1,141 flights, to help you see all the options for your trip to San Juan Puerto Rico. Once you’ve chosen your flight, why not check out our deals on accommodation and car hire? You’ll find lots of hotels in Puerto Rico, including some close to the airport – perfect if you're arriving late or leaving early.

Other popular destinations near San Juan Puerto Rico

Where other people are flying to

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