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£373 Cheap Flights from London (LGW) to San Juan (SJU)

View £373 flight on Fri, 4 Sept 2026Opens in a new window

Popular airlines from Gatwick Airport (LGW) to Luis Munoz Marin Intl. Airport (SJU)

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Cheap Flights from London (LGW) to San Juan (SJU)

Prices were available within the past 7 days and start at £373 for one-way flights and £598 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Fri, 4 Sept - Sun, 6 Sept
LGW
London
SJU
San Juan
£598 Return, found 1 day ago
£598
Return
found 1 day ago
Select JetBlue Airways flight, departing Fri, 4 Sept from London to San Juan, returning Sun, 6 Sept, priced at £598 found 1 day ago
JetBlue Airways
Tue, 1 Sept - Sun, 6 Sept
LGW
London
SJU
San Juan
£605 Return, found 3 days ago
£605
Return
found 3 days ago
Select JetBlue Airways flight, departing Tue, 1 Sept from London to San Juan, returning Sun, 6 Sept, priced at £605 found 3 days ago
JetBlue Airways
Tue, 1 Sept - Thu, 3 Sept
LGW
London
SJU
San Juan
£621 Return, found 6 days ago
£621
Return
found 6 days ago
Select JetBlue Airways flight, departing Tue, 1 Sept from London to San Juan, returning Thu, 3 Sept, priced at £621 found 6 days ago
JetBlue Airways
Thu, 3 Sept - Mon, 7 Sept
LGW
London
SJU
San Juan
£622 Return, found 5 days ago
£622
Return
found 5 days ago
Select JetBlue Airways flight, departing Thu, 3 Sept from London to San Juan, returning Mon, 7 Sept, priced at £622 found 5 days ago
JetBlue Airways
Thu, 3 Sept - Sat, 5 Sept
LGW
London
SJU
San Juan
£623 Return, found 5 days ago
£623
Return
found 5 days ago
Select JetBlue Airways flight, departing Thu, 3 Sept from London to San Juan, returning Sat, 5 Sept, priced at £623 found 5 days ago
JetBlue Airways
Thu, 27 Aug - Sat, 5 Sept
LGW
London
SJU
San Juan
£624 Return, found 4 days ago
£624
Return
found 4 days ago
Select JetBlue Airways flight, departing Thu, 27 Aug from London to San Juan, returning Sat, 5 Sept, priced at £624 found 4 days ago
TAP Portugal
Mon, 21 Sept - Fri, 2 Oct
LGW
London
SJU
San Juan
£697 Return, found 1 day ago
£697
Return
found 1 day ago
Select TAP Portugal flight, departing Mon, 21 Sept from London to San Juan, returning Fri, 2 Oct, priced at £697 found 1 day ago
Icelandair
Tue, 1 Sept - Tue, 29 Sept
LGW
London
SJU
San Juan
£787 Return, found 3 days ago
£787
Return
found 3 days ago
Select Icelandair flight, departing Tue, 1 Sept from London to San Juan, returning Tue, 29 Sept, priced at £787 found 3 days ago
British Airways
Wed, 23 Sept - Sun, 27 Sept
LGW
London
SJU
San Juan
£949 Return, found 3 hours ago
£949
Return
found 3 hours ago
Select British Airways flight, departing Wed, 23 Sept from London to San Juan, returning Sun, 27 Sept, priced at £949 found 3 hours ago
Iberia
Mon, 21 Sept - Fri, 2 Oct
LGW
London
SJU
San Juan
£958 Return, found 1 day ago
£958
Return
found 1 day ago
Select Iberia flight, departing Mon, 21 Sept from London to San Juan, returning Fri, 2 Oct, priced at £958 found 1 day ago

Alternative airports near San Juan

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Luis Munoz Marin Intl. SJU. Cheapest option available. Average driving time to city centre is 16 minutes. Flights from £1,382
SJU
Luis Munoz Marin Intl.
Cheapest
Average driving time to city centre16 min
Flights from £1,382

Frequently asked questions

How much does a flight from London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.) cost?
You can find cheap one-way flights from £373 and cheap return flights from £598 LGW to SJU with Expedia. Return flights often range between £1054 and £2964. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when LGW to SJU ticket fares go up or down.
What is the cheapest month to fly from London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.)?
The cheapest months to fly from LGW to SJU are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.)?
Enter LGW to SJU and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.)?
Caribbean Sun is one of the cheapest airlines offering connecting return flights from London Gatwick (LGW) to San Juan Luis Munoz Marin Intl. (SJU), with prices starting from around £890 for flights that can be booked for departure within the next year. These flights typically include a layover in Frankfurt Intl. (FRA). Prices are per adult, for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.)?
To find a cheap flight from London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.)?
There are approximately 11 connecting flights per day from London Gatwick (LGW) to San Juan Luis Munoz Marin Intl. (SJU). Some common connection points include Keflavik Intl. (KEF), Istanbul Airport (IST), and Roissy-Charles de Gaulle (CDG).
What is the earliest flight from London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.)?
The earliest flight from London Gatwick (LGW) to San Juan (SJU) typically departs around 5:20 AM. This service is operated by Turkish Airlines and JetBlue Airways. This is a seasonal service, active only in July. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.)?
You'll typically find the most flights from London Gatwick (LGW) to San Juan (SJU) on a Monday, with around 31 flights available. This gives you a good selection of options for your journey. Major airlines on this route include British Airways, Air France, and Turkish Airlines.
What are the most popular departure times for flights from London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.)?
The most popular departure times for flights from London Gatwick (LGW) to San Juan (SJU) are between 12pm and 3pm. Many major carriers, including British Airways and JetBlue Airways, offer flights during this window. Many travellers prefer this timing as it allows for a comfortable morning before heading to the airport, and you'll arrive in San Juan with plenty of time to settle in.
How long does it take to fly from London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.)?
There are no nonstop flights from London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.). For flights with one stop, you can expect the journey to take around 18 hours 30 minutes. Flights with two or more stops typically take a bit longer, also averaging around 18 hours 30 minutes. The distance covered on this route is approximately 6,746 kilometers. Keep in mind that actual travel times can vary due to layovers, routing, and weather conditions.
Can you fly business or first class from London (LGW) to San Juan (SJU)?
Select the "Business class" and "First class" filters when looking for London (LGW) to San Juan (SJU) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.) flight with Expedia?
It's easy to earn miles on a London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for San Juan (SJU) from London (LGW)?
If you're planning to travel to San Juan from Gatwick Airport (LGW), you can fly directly into Luis Munoz Marin International Airport (SJU). Some flights may connect through major hubs like Orlando International Airport (MCO), Tampa International Airport (TPA), or Paris Charles de Gaulle Airport (CDG) before reaching San Juan. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.) at the last minute?
Typically, booking a last minute flight from London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.) flight and hotel package?
Securing a London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.)?
If you booked your London (LGW-Gatwick) to San Juan (SJU-Luis Munoz Marin Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Gatwick
Destination airport
Luis Munoz Marin Intl.
Airlines serving
Air Europa, Air France, American Airlines, British Airways, Delta, Iberia, Icelandair, JetBlue Airways, KLM, TAP Portugal, Turkish Airlines, Virgin Atlantic
Return price
£597
Distance
6706 km

Book with confidence

Compare flights from London to San Juan easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from London to San Juan. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Luis Munoz Marin Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Gatwick to Luis Munoz Marin Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Gatwick (LGW) to Luis Munoz Marin Intl. (SJU)

The easiest way to view the best deals on flights from London to San Juan today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Gatwick to Luis Munoz Marin Intl. start at just £598 and range up to £958.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near London and San Juan
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your London to San Juan flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Gatwick to Luis Munoz Marin Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from London to San Juan easily and book with confidence

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