C$555 Cheap Flights from London (LOND) to San Juan Luis Munoz Marin (SJU)

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Flight deals from London to San Juan Luis Munoz Marin

Looking for a cheap last-minute deal or the best return flight from London to San Juan Luis Munoz Marin Airport? If you want to travel next month, return fares start from C$1,251. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from London to San Juan Luis Munoz Marin

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London to San Juan Luis Munoz Marin flights are currently cheapest in June.

London to San Juan: Flight information

The things to know before you go.
Cheapest flight foundC$555
Cheapest month to flyJune

Finding cheap flights from London to San Juan Luis Munoz Marin: Frequently asked questions

The best price we found for a return flight from London to San Juan Luis Munoz Marin is C$978. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from London to San Juan Luis Munoz Marin. But we found flights with one stop from C$977.
As of May 2026, there are no flights flying from London to San Juan Luis Munoz Marin.
The cheapest month to fly from London to San Juan Luis Munoz Marin is usually August.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London to San Juan Luis Munoz Marin Airport on Tuesday, August 25, 2026.
No airlines currently offer direct flights between London and San Juan Luis Munoz Marin Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Juan Luis Munoz Marin but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Juan is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to San Juan Luis Munoz Marin is Ryanair .

Flying from London to Luis Munoz Marin International Airport (SJU): what you need to know

  • When planning your flight from London to Luis Munoz Marin International Airport (SJU), you'll have a good choice of airports to jet out of. Check out London Heathrow Airport (LHR) and London Gatwick Airport (LGW) for your departure. Other possibilities include Stansted Airport (STN), London Luton Airport (LTN) and London City Airport (LCY).

  • Luis Munoz Marin International Airport is located in San Juan. The city operates in the UTC-4 timezone and is 4 hours behind London.

  • Get to the airport on time so you don't miss your flight from London to SJU. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid the stress of rushing.

  • Popular months like July or other busy periods mean longer lines and potential delays. Stick to your schedule by arriving at the airport even earlier. Plan for at least four hours ahead of international flights and two hours before a domestic departure.

Airports in London

London Heathrow Airport (LHR)

  • Consider adding a stopover to potentially save money on your flight from London to SJU. Just deselect 'Direct flights only' when browsing departures from London Heathrow Airport (LHR). Take a break from travelling at one of these popular airports:

    • Logan International Airport (BOS)

    • Grantley Adams International Airport (BGI)

    • John F. Kennedy International Airport (JFK)

  • LHR is roughly 31 kilometres from central London. To work out how to get there, use Google Maps. This handy travel app will show you the quickest route and available public transport options.

  • Want a relaxed start to your journey? Stay near London Heathrow Airport. Whether you have an early flight from London to Luis Munoz Marin International Airport or want to avoid feeling rushed, these hotels are ideal:

London Gatwick Airport (LGW)

  • Make the most of your vacation with a stopover on your flight from London to Luis Munoz Marin International Airport. Visit friends or family or tick another city off your list. Whatever you decide to do, here's where you can stop between London Gatwick Airport and SJU:

    • Logan International Airport (BOS)

    • Adolfo Suarez Madrid-Barajas Airport (MAD)

    • John F. Kennedy International Airport (JFK)

  • On public transport, you can travel from central London to LGW in around 1 hour and 26 minutes. The airport is roughly 80 kilometres away, and getting there by car takes approximately 1 hour and 19 minutes.

  • Want to treat yourself to an extra night away before boarding your flight from London to SJU? Relax in a hotel near London Gatwick Airport before your adventure officially starts. Stay at one of these accommodation options:

About Luis Munoz Marin International Airport (SJU)

Getting from Luis Munoz Marin International Airport (SJU) to central San Juan

  • From Luis Munoz Marin International Airport, San Juan is approximately 8 kilometres away. It takes around 11 minutes to reach the centre driving.

  • It takes around 56 minutes if you're using public transport.

How to find the cheapest flights from London to Luis Munoz Marin International Airport (SJU)

  • For a one-way ticket from London to Luis Munoz Marin International Airport, C$555 is the best price we've seen. You can also book a return trip from just C$977. These are the lowest fares right now but may change depending on availability.

  • Don't wait until the last moment. You're more likely to find flight tickets from London to SJU if you book ahead. Airlines often have some great early bird rates.

  • Use the 'Whole month' search function to compare the prices of tickets from London to Luis Munoz Marin International Airport across each month. We've made the lowest fares green, so you can quickly pick a flight that fits your budget.

  • Log into your online account or use the app to create a Price Alert. We'll notify you straight away if there's a deal you won't want to miss. It doesn't take long, and it'll save you from looking for a cheap ticket from London to SJU every day.

  • Tailor your flights with filters. Select your preferred arrival and departure times, airlines and total journey duration. You can also sort the results by 'Cheapest,' 'Best' or 'Fastest' flights from London to Luis Munoz Marin International Airport.

The best time to fly from London to Luis Munoz Marin International Airport (SJU)

  • July is the most popular month to board a flight from London to Luis Munoz Marin International Airport while May is the quietest. To work out the ideal time to visit San Juan, consider the pace you prefer to travel at.

  • The warmest month in San Juan is September, with temperatures ranging between 23ºC and 33ºC. Book your flights from London to SJU in this month if this is the type of weather you enjoy.

  • Travel in February if you want cooler conditions. Temperatures average between 20ºC and 28ºC. However, this city delivers on a good time whenever you book your cheap flights from London to Luis Munoz Marin International Airport.

More about San Juan

Complete your San Juan trip with a car rental

  • Once you've booked your hotel and cheap flight from London to Luis Munoz Marin International Airport, next up is choosing one of our car rentals in San Juan. Check out the offers and easily compare your options on pick-up convenience, price, and more.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.