LON - SJU

£350 Find Cheap Flights from London to San Juan – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
£535
Typical prices: £595-£894
JetBlue
Tue 16/1Tue 23/1
LHR - SJU • 1 stop
Cheapest one-way flight
£365
Typical prices: £419-£644
Multiple Airlines
Mon 3/12
STN - SJU • 3 stops
Direct flights
Not available
There are currently no direct flights between London and San Juan Luis Munoz Marin Intl Airport. You'll need to take a connecting flight to reach the destination.
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Top routes
LTN - SJU
Cheapest • 32% average savings
LHR - SJU
Most popular
Insights
Insights
When to book
7 weeks
in advance
Our data shows that travellers who book at least 7 weeks in advance save around 46% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 24% price drop
March
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Orlando (MCO)
Cheapest • Avg £540 (return)
Madrid Barajas (MAD)
Shortest trip • 13h 14m (one-way)
Insights
Insights
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to San Juan Luis Munoz Marin Intl Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from London to San Juan (LON-SJU)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to San Juan

Sat, 16 Jan - Sat, 23 Jan
JetBlue Logo
12:20 - 01:54LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
17h 34m1 stop New York John F Kennedy Intl
JetBlue Logo
15:53 - 09:30SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
13h 37m1 stop New York John F Kennedy Intl
£535JetBlue
Sat, 16 Jan - Sat, 23 Jan
JetBlue Logo
08:05 - 19:50LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
15h 45m1 stop New York John F Kennedy Intl
JetBlue Logo
13:54 - 09:30SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
15h 36m1 stop New York John F Kennedy Intl
£548JetBlue
Thu, 4 Feb - Sun, 7 Feb
Multiple Airlines Logo
07:45 - 16:55LTN  London Luton-SJU San Juan Luis Munoz Marin Intl
37h 10m2 stops Madrid Barajas Bogotá El Dorado
Multiple Airlines Logo
18:20 - 20:50SJU  San Juan Luis Munoz Marin Intl-LTN London Luton
22h 30m2 stops Bogotá El Dorado Madrid Barajas
£587Multiple Airlines
Wed, 18 Nov - Mon, 23 Nov
JetBlue Logo
07:25 - 20:48LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
17h 23m1 stop New York John F Kennedy Intl
JetBlue Logo
15:50 - 09:30SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
13h 40m1 stop New York John F Kennedy Intl
£588JetBlue
Thu, 4 Feb - Sun, 7 Feb
Multiple Airlines Logo
18:10 - 16:55STN  London Stansted-SJU San Juan Luis Munoz Marin Intl
26h 45m2 stops Madrid Barajas Bogotá El Dorado
Multiple Airlines Logo
21:30 - 20:15SJU  San Juan Luis Munoz Marin Intl-STN London Stansted
18h 45m1 stop Madrid Barajas
£588Multiple Airlines
Wed, 18 Nov - Wed, 25 Nov
Multiple Airlines Logo
09:50 - 00:59LGW  London Gatwick-SJU San Juan Luis Munoz Marin Intl
19h 09m2 stops Orlando Atlanta Hartsfield-Jackson
Multiple Airlines Logo
22:21 - 06:50SJU  San Juan Luis Munoz Marin Intl-LGW London Gatwick
28h 29m1 stop Orlando
£603Multiple Airlines
Sat, 19 Dec - Mon, 28 Dec
Iberia Logo
12:10 - 09:36LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
25h 26m1 stop Miami
Iberia Logo
18:31 - 12:05SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
13h 34m1 stop Miami
£871Iberia
Thu, 11 Feb - Sat, 20 Feb
Iberia Logo
11:25 - 20:00LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
12h 35m1 stop Madrid Barajas
Iberia Logo
19:10 - 12:10SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
13h 00m1 stop Miami
£880Iberia
Mon, 18 Jan - Mon, 18 Jan
British Airways Logo
07:30 - 16:40LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
13h 10m1 stop Madrid Barajas
British Airways Logo
21:35 - 13:30SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
11h 55m1 stop Madrid Barajas
£955British Airways
Mon, 30 Nov - Mon, 7 Dec
British Airways Logo
06:30 - 23:57LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
21h 27m2 stops Dublin Philadelphia
British Airways Logo
08:30 - 07:50SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
19h 20m1 stop Philadelphia
£1,057British Airways
Booking Insights

Price, demand, and travel trends for London to San Juan Luis Munoz Marin Intl Airport flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from London to San Juan Luis Munoz Marin Intl Airport?

Return flights from London to San Juan Luis Munoz Marin Intl Airport typically range from £595 to £894. The lowest price found in the past 5 days was £535 on JetBlue.

What is the cheapest London to San Juan Luis Munoz Marin Intl Airport flight route?

London Luton Airport (LTN) to San Juan Luis Munoz Marin Intl Airport (SJU) is the cheapest London to San Juan Luis Munoz Marin Intl Airport route, averaging £543 return. Other London to San Juan Luis Munoz Marin Intl Airport routes average £858, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from London to San Juan Luis Munoz Marin Intl Airport?

Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from London to San Juan Luis Munoz Marin Intl Airport. It's 7% cheaper than the average day, while Thursday is the most expensive, with prices 4% higher.

What is the cheapest month to fly from London to San Juan Luis Munoz Marin Intl Airport?

•February is the cheapest month to fly from London to San Juan Luis Munoz Marin Intl Airport at £544 return.
•December (£956) and July (£902) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 75% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from London to San Juan Luis Munoz Marin Intl Airport the cheapest?

Flights from London to San Juan Luis Munoz Marin Intl Airport are cheapest 7 weeks before departure. Booking in this window typically costs about 46% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for London to San Juan Luis Munoz Marin Intl Airport flights

Low season

June

Cheapest flight

£365
Beat the crowds with an average 42% drop in traveller numbers.
The most popular month to fly with an average 55% increase in traveller numbers.
One-way flight from London Stansted Airport to San Juan Luis Munoz Marin Intl Airport

When to book flights from London to San Juan

Are your dates flexible? Find out the best times to travel from London to San Juan based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your London to San Juan Luis Munoz Marin Intl Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Which cabin classes can I book on flights from London to San Juan Luis Munoz Marin Intl Airport?

    Four cabin classes are available on flights from London to San Juan Luis Munoz Marin Intl Airport:

    • Economy class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from London to San Juan Luis Munoz Marin Intl Airport?

    A direct flight from London to San Juan Luis Munoz Marin Intl Airport takes 00m, covering 4,193 miles.

  • Do I need a passport to fly from London to San Juan Luis Munoz Marin Intl Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a London to San Juan Luis Munoz Marin Intl Airport flight?

    Return flights from London to San Juan Luis Munoz Marin Intl Airport range from £595 to £894, with an average of £719 over the past 12 months. Anything below £595 counts as a good deal.

  • How expensive are last-minute London to San Juan Luis Munoz Marin Intl Airport flights?

    Last-minute fares on this route (booked within two weeks of departure) run 23% above the £719 route average. Book 7 weeks before departure for the lowest fares.

  • How are flight prices from London to San Juan Luis Munoz Marin Intl Airport looking right now?

    One-way fares from London to San Juan Luis Munoz Marin Intl Airport are currently in line with typical prices for this route. Average one-way fares are about £528.

  • Which car hire options are available at San Juan Luis Munoz Marin Intl Airport (SJU)?

    San Juan Luis Munoz Marin Intl Airport (SJU) hosts 5 major car hire companies, with daily rates averaging £31 for economy cars. Top options include:

    • Routes Car & Truck Rentals
    • U-Save
    • Hertz
    • Payless
    • Europcar

  • Which airports can I use when flying from London to San Juan Luis Munoz Marin Intl Airport?

    Flights from London to San Juan Luis Munoz Marin Intl Airport may depart from several airports in London area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN). Flights usually arrive at San Juan Luis Munoz Marin Intl (SJU).

  • Which airports do connecting flights from London to San Juan Luis Munoz Marin Intl Airport pass through?

    One-stop flights from London to San Juan Luis Munoz Marin Intl Airport most commonly connect through:

    • New York John F Kennedy Intl (JFK) – 64% of one-stop connections
    • Madrid Barajas (MAD) – 15% of one-stop connections
    • Boston Logan Intl (BOS) – 14% of one-stop connections
    • Bogotá El Dorado (BOG) – 3% of one-stop connections

  • Can I save money by using flexible dates for flights from London to San Juan Luis Munoz Marin Intl Airport?

    Yes. Flexible dates can save you up to 11% on flights from London to San Juan Luis Munoz Marin Intl Airport. Saturday is the cheapest departure day at £669 return on average, while Thursday is the most expensive at £752, a difference of £82.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How much time can I save by choosing a different stopover airport from London to San Juan Luis Munoz Marin Intl Airport?

    Flying via Madrid Barajas (MAD) gives the shortest average 1-stop total travel time of 13h 14m, compared to 13h 38m via Washington, D.C. Dulles Intl (IAD) and 14h 10m via Philadelphia (PHL).

  • What is the time difference between London and San Juan Luis Munoz Marin Intl Airport?

    San Juan Luis Munoz Marin Intl Airport is 4 hours behind London (Atlantic Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in San Juan Luis Munoz Marin Intl Airport?

    Some of the most popular sights in San Juan Luis Munoz Marin Intl Airport are Condado Beach and Viejo San Juan. These are among the most viewed places in San Juan Luis Munoz Marin Intl Airport on KAYAK.

Your guide to booking London to San Juan Luis Munoz Marin Intl Airport flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Saturday departure and avoid flying on Thursday. On this route, Saturday flights average £669, about £82 less than Thursday fares (11% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 7 weeks before you fly. On this route, that window historically saves about 46% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your London to San Juan Luis Munoz Marin Intl Airport trip for February. Fares historically average £544 return in that month – typically £412 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to San Juan Luis Munoz Marin Intl Airport.

    • Coral by The Sea Hotel
    • San Juan Airport Hotel
    • Hampton Inn & Suites by Hilton San Juan

More options for your flight from London to San Juan

Complete your trip to San Juan with a hotel stay or car hire

Car hire in San Juan
Hotels in San Juan
Holidays in San Juan