LHR - SJU

£374 Find Cheap Flights from London Heathrow Airport to San Juan – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
£537
Typical prices: £576-£874
JetBlue
Wed 7/11Wed 21/11
LHR - SJU • 1 stop
Cheapest one-way flight
£374
Typical prices: £448-£750
JetBlue
Wed 31/10
LHR - SJU • 1 stop
Direct flights
Not available
There are currently no direct flights between London Heathrow Airport and San Juan Luis Munoz Marin Intl Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
7 weeks
in advance
Our data shows that travellers who book at least 7 weeks in advance save around 45% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 20% price drop
January
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Bogotá El Dorado (BOG)
Cheapest • Avg £645 (return)
Madrid Barajas (MAD)
Shortest trip • 12h 59m (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 Heathrow to San Juan (LHR-SJU)

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

Recent return flight deals from Heathrow to San Juan

Sat, 7 Nov - Sat, 21 Nov
JetBlue Logo
08:05 - 12:26LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
32h 21m1 stop New York John F Kennedy Intl
JetBlue Logo
03:29 - 20:55SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
13h 26m1 stop New York John F Kennedy Intl
£537JetBlue
Fri, 4 Dec - Sun, 13 Dec
JetBlue Logo
12:20 - 23:30LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
15h 10m1 stop New York John F Kennedy Intl
JetBlue Logo
08:10 - 21:40SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
33h 30m1 stop New York John F Kennedy Intl
£537JetBlue
Thu, 29 Oct - Wed, 11 Nov
Multiple Airlines Logo
09:40 - 23:39LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
17h 59m1 stop Miami
Multiple Airlines Logo
16:52 - 12:35SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
15h 43m1 stop Miami
£541Multiple Airlines
Thu, 29 Oct - Wed, 11 Nov
Multiple Airlines Logo
09:40 - 23:39LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
17h 59m1 stop Miami
Multiple Airlines Logo
16:52 - 12:35SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
15h 43m1 stop Miami
£552Multiple Airlines
Thu, 18 Feb - Sat, 27 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 - 17:15SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
15h 40m1 stop Madrid Barajas
£602Iberia
Sat, 20 Feb - Tue, 2 Mar
Iberia Logo
09:15 - 20:00LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
14h 45m1 stop Madrid Barajas
Iberia Logo
21:35 - 14:55SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
13h 20m1 stop Madrid Barajas
£620Iberia
Sun, 8 Nov - Tue, 24 Nov
Icelandair Logo
20:35 - 01:13LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
32h 38m2 stops Reykjavik Keflavik Intl Boston Logan Intl
Icelandair Logo
05:01 - 10:50SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
25h 49m2 stops Boston Logan Intl Reykjavik Keflavik Intl
£737Icelandair
Wed, 11 Nov - Tue, 24 Nov
Icelandair Logo
12:15 - 01:13LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
16h 58m2 stops Reykjavik Keflavik Intl Boston Logan Intl
Icelandair Logo
05:01 - 19:30SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
34h 29m2 stops Boston Logan Intl Reykjavik Keflavik Intl
£756Icelandair
Thu, 7 Jan - Thu, 21 Jan
British Airways Logo
06:30 - 23:54LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
21h 24m2 stops Dublin Philadelphia
British Airways Logo
15:14 - 08:15SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
13h 01m1 stop Miami
£1,027British Airways
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
£1,028British Airways
Booking Insights

Price, demand, and travel trends for London Heathrow Airport 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 from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport with more confidence.

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

Return flights from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport start at £537. Prices are below average for this route right now, with typical return fares ranging from £576 to £874. The lowest price found in the past 5 days was £537 on JetBlue.

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

Tuesday is the cheapest day of the week to fly from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport and is 10% cheaper than the average day. Friday is the most expensive day with flight prices 4% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

•February is the cheapest month to fly from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport at £549 return.
•December (£930) and August (£925) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 69% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport are cheapest 7 weeks before departure. Booking in this window typically costs about 45% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

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

Low season

August

Cheapest flight

£374
Best time to beat the crowds but there is an average 34% increase in price.
Most popular time to fly and prices are also 4% lower on average.
Flights from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport

When to book flights from Heathrow to San Juan

Are your dates flexible? Find out the best times to travel from Heathrow 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 Heathrow Airport to San Juan Luis Munoz Marin Intl Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

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

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

    • Economy class
    • Premium Economy Class
    • Business Class

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

    A direct flight from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport takes 0h 00m, covering 4,179 miles.

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

    Return flights from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport range from £576 to £874, with an average of £689 over the past 12 months. Anything below £576 counts as a good deal.

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

    Last-minute fares on this route (booked within 2 weeks of departure) run 27% above the route average of £689. Book 7 weeks before departure for the lowest fares.

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

    One-way fares from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport are currently lower than usual. Average one-way flight prices are about £475, which is 18% below 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
    • Payless
    • Hertz
    • Europcar

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

    Flights from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport usually depart from London Heathrow (LHR) and arrive at San Juan Luis Munoz Marin Intl (SJU).

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

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

    • New York John F Kennedy Intl (JFK) – 72% of one-stop connections
    • Boston Logan Intl (BOS) – 11% of one-stop connections
    • Madrid Barajas (MAD) – 10% of one-stop connections
    • Bogotá El Dorado (BOG) – 4% of one-stop connections

    New York John F Kennedy Intl (JFK) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 14% on the London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport route. Tuesday is the cheapest departure day at £623 return on average, while Friday is the most expensive at £718, a difference of £95. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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

    Flying via Madrid Barajas (MAD) gives the shortest average 1-stop total travel time of 12h 59m, compared to 13h 38m via Washington, D.C. Dulles Intl (IAD) and 13h 53m via Charlotte Douglas (CLT).

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

    San Juan Luis Munoz Marin Intl Airport is 5 hours behind London Heathrow Airport (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 Heathrow Airport 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 Tuesday departure instead of Friday. On this route, Tuesday flights average £623 – about £95 less than Friday (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 45% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport trip for February. Fares historically average £549 return in that month – typically £381 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
    - Hampton Inn & Suites by Hilton San Juan
    - San Juan Airport Hotel

More options for your flight from Heathrow 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