United Kingdom
GBP

LON - SJU

£322 Find Cheap Flights from London to San Juan – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
£546
Typical prices: £601-£911
JetBlue
Wed 14/11Tue 20/11
LHR - SJU • 1 stop
Cheapest one-way flight
£322
Typical prices: £418-£679
Multiple Airlines
Wed 14/11
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 £543 (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, 14 Nov - Fri, 20 Nov
JetBlue Logo
08:05 - 20:48LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
16h 43m1 stop New York John F Kennedy Intl
JetBlue Logo
03:29 - 21:40SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
14h 11m1 stop New York John F Kennedy Intl
£546JetBlue
Tue, 3 Nov - Tue, 10 Nov
Multiple Airlines Logo
06:30 - 23:38LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
21h 08m2 stops Amsterdam Schiphol Miami
Multiple Airlines Logo
16:52 - 12:35SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
15h 43m1 stop Miami
£576Multiple Airlines
Tue, 3 Nov - Tue, 10 Nov
Multiple Airlines Logo
09:40 - 23:38LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
17h 58m1 stop Miami
Multiple Airlines Logo
16:52 - 12:35SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
15h 43m1 stop Miami
£585Multiple Airlines
Sat, 14 Nov - Sat, 21 Nov
JetBlue Logo
12:20 - 12:26LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
28h 06m1 stop New York John F Kennedy Intl
JetBlue Logo
21:10 - 20:55SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
19h 45m1 stop New York John F Kennedy Intl
£618JetBlue
Mon, 1 Feb - Fri, 5 Feb
Icelandair Logo
12:15 - 01:53LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
17h 38m2 stops Reykjavik Keflavik Intl New York John F Kennedy Intl
Icelandair Logo
13:54 - 10:50SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
16h 56m2 stops New York John F Kennedy Intl Reykjavik Keflavik Intl
£735Icelandair
Mon, 1 Feb - Fri, 5 Feb
Icelandair Logo
12:15 - 01:53LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
17h 38m2 stops Reykjavik Keflavik Intl New York John F Kennedy Intl
Icelandair Logo
13:54 - 10:50SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
16h 56m2 stops New York John F Kennedy Intl Reykjavik Keflavik Intl
£736Icelandair
Sat, 13 Feb - Sun, 21 Feb
Iberia Logo
09:15 - 20:00LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
14h 45m1 stop Madrid Barajas
Iberia Logo
18:10 - 17:15SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
19h 05m1 stop Madrid Barajas
£810Iberia
Fri, 12 Feb - Mon, 22 Feb
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
£828Iberia
Thu, 7 Jan - Thu, 21 Jan
British Airways Logo
06:30 - 23:59LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
21h 29m2 stops Dublin Philadelphia
British Airways Logo
15:14 - 08:15SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
13h 01m1 stop Miami
£1,050British Airways
Fri, 20 Nov - Thu, 26 Nov
British Airways Logo
11:25 - 20:00LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
12h 35m1 stop Madrid Barajas
British Airways Logo
15:17 - 08:15SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
12h 58m1 stop Miami
£1,053British 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 £601 to £911. The lowest price found in the past 5 days was £546 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 £549 return. Other London to San Juan Luis Munoz Marin Intl Airport routes average £867, 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 £552 return.
•December (£944) and July (£910) 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

£322
Beat the crowds with an average 68% drop in traveller numbers.
The most popular month to fly with an average 1% 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 £601 to £911, with an average of £737 over the past 12 months. Anything below £601 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 £737 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 £541.

  • 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 £670 return on average, while Friday is the most expensive at £772, 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 £670, 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 £552 return in that month – typically £392 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