LON - SJU

£331 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
£542
Typical prices: £596-£904
Multiple Airlines
Tue 30/1Thu 8/2
LTN - SJU • 2 stops
Cheapest one-way flight
£331
Typical prices: £415-£673
Multiple Airlines
Sat 1/12
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.
Insights
Insights
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 47% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 25% price drop
January
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Orlando (MCO)
Cheapest • Avg £539 (return)
Madrid Barajas (MAD)
Shortest trip • 13h 06m (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, 30 Jan - Mon, 8 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
£542Multiple Airlines
Sat, 30 Jan - Mon, 8 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
£542Multiple Airlines
Sun, 10 Jan - Fri, 15 Jan
JetBlue Logo
09:20 - 19:25LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
14h 05m1 stop Boston Logan Intl
JetBlue Logo
15:45 - 09:30SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
13h 45m1 stop New York John F Kennedy Intl
£595JetBlue
Thu, 12 Nov - Thu, 26 Nov
JetBlue Logo
12:20 - 14:40LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
30h 20m1 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
£605JetBlue
Wed, 25 Nov - Fri, 4 Dec
Icelandair Logo
12:15 - 10:02LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
25h 47m2 stops Reykjavik Keflavik Intl Boston Logan Intl
Icelandair Logo
14:45 - 10:50SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
16h 05m2 stops Boston Logan Intl Reykjavik Keflavik Intl
£751Icelandair
Wed, 24 Feb - Tue, 9 Mar
Icelandair Logo
12:15 - 02:25LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
18h 10m2 stops Reykjavik Keflavik Intl New York John F Kennedy Intl
Icelandair Logo
07:01 - 10:50SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
23h 49m2 stops New York John F Kennedy Intl Reykjavik Keflavik Intl
£754Icelandair
Wed, 13 Jan - Wed, 20 Jan
Iberia Logo
09:15 - 20:00LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
14h 45m1 stop Madrid Barajas
Iberia Logo
21:35 - 16:35SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
15h 00m1 stop Madrid Barajas
£771Iberia
Wed, 13 Jan - Sun, 24 Jan
Iberia Logo
09:15 - 20:00LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
14h 45m1 stop Madrid Barajas
Iberia Logo
21:30 - 17:15SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
15h 45m1 stop Madrid Barajas
£778Iberia
Tue, 1 Dec - Thu, 17 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
12:59 - 06:45SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
13h 46m1 stop Miami
£1,016British Airways
Wed, 2 Dec - Thu, 17 Dec
British Airways Logo
06:30 - 00:11LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
21h 41m2 stops Dublin Philadelphia
British Airways Logo
12:59 - 06:45SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
13h 46m1 stop Miami
£1,016British 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.

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 £544 return. Other London to San Juan Luis Munoz Marin Intl Airport routes average £860, 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, Sunday is the cheapest day of the week to fly from London to San Juan Luis Munoz Marin Intl Airport. It’s 9% cheaper than the average day, while Friday 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 £547 return.
•December (£936) and July (£903) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 71% 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 47% 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

£331
Beat the crowds with an average 45% drop in traveller numbers.
The most popular month to fly with an average 59% 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?

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

    • Economy class
    • Premium Economy Class
    • Business Class

  • 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 £596 to £904, with an average of £731 over the past 12 months. Anything below £596 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 25% above the £731 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 higher than usual. Average one-way flight prices are about £542, which is 5% above the typical average for this route.

  • 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 starting from around £3 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) – 66% of one-stop connections
    • Madrid Barajas (MAD) – 14% of one-stop connections
    • Boston Logan Intl (BOS) – 13% 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 14% on flights from London to San Juan Luis Munoz Marin Intl Airport. Sunday is the cheapest departure day at £665 return on average, while Friday is the most expensive at £766, a difference of £101.

    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 06m, 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 5 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 Sunday departure and avoid flying on Friday. On this route, Sunday flights average £665, about £101 less than Friday fares (13% 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 47% 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 £547 return in that month – typically £389 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