SJU - LHR

$275 Find Cheap Flights from San Juan to London - Compare and Save

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Everything you should know

Cheapest round-trip
$691
Typical prices: $719-$1,083
United Airlines
Sat 12/1Mon 12/3
SJU - LHR • 1 stop
Cheapest one-way
$275
Typical prices: $351-$571
JetBlue
Sat 11/17
SJU - LHR • 1 stop
Nonstop flights
Not available
There are currently no direct flights between San Juan Luis Munoz Marin Intl Airport and London Heathrow Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
15 weeks
in advance
Our data shows that travelers who book at least 15 weeks in advance save around 34% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 29% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Chicago O'Hare Intl (ORD)
Cheapest • Avg $650 (round-trip)
Madrid Barajas (MAD)
Shortest trip • 13h 06m (one-way)
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Insights
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We hope you love your trip to London Heathrow Airport!
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Flight Deals

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

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

Recent round-trip flight deals from San Juan to London

Tue, Dec 1 - Thu, Dec 3
United Airlines Logo
2:05 am - 9:20 pmSJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
15h 15m1 stop Newark
United Airlines Logo
6:50 am - 11:50 amLHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
33h 00m2 stops Brussels Bruxelles-National Newark
$691United Airlines
Sun, Dec 6 - Mon, Dec 7
United Airlines Logo
8:05 am - 6:40 amSJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
18h 35m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
9:00 am - 2:40 pmLHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
33h 40m2 stops Zurich Newark
$692United Airlines
Wed, Nov 11 - Tue, Nov 24
JetBlue Logo
1:55 pm - 9:30 amSJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
15h 35m1 stop New York John F Kennedy Intl
JetBlue Logo
9:20 am - 7:35 pmLHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
14h 15m1 stop Boston Logan Intl
$779JetBlue
Wed, Nov 11 - Tue, Nov 24
JetBlue Logo
1:55 pm - 9:30 amSJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
15h 35m1 stop New York John F Kennedy Intl
JetBlue Logo
7:25 am - 6:40 pmLHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
15h 15m1 stop New York John F Kennedy Intl
$779JetBlue
Wed, Nov 11 - Mon, Nov 16
Iberia Logo
3:17 pm - 12:05 pmSJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
16h 48m1 stop Miami
Iberia Logo
9:15 am - 8:00 pmLHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
14h 45m1 stop Madrid Barajas
$806Iberia
Thu, Nov 12 - Mon, Nov 16
Iberia Logo
11:35 am - 8:15 amSJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
16h 40m1 stop Miami
Iberia Logo
7:30 am - 8:00 pmLHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
16h 30m1 stop Madrid Barajas
$806Iberia
Tue, Nov 17 - Sat, Nov 28
Avianca Logo
6:20 pm - 2:35 pmSJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
16h 15m1 stop Bogotá El Dorado
Avianca Logo
9:35 pm - 4:55 pmLHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
23h 20m1 stop Bogotá El Dorado
$806Avianca
Mon, Nov 23 - Mon, Nov 30
Avianca Logo
6:20 pm - 2:35 pmSJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
16h 15m1 stop Bogotá El Dorado
Avianca Logo
9:35 pm - 4:55 pmLHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
23h 20m1 stop Bogotá El Dorado
$806Avianca
Wed, Nov 11 - Mon, Nov 16
American Airlines Logo
6:55 pm - 12:05 pmSJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
13h 10m1 stop Miami
American Airlines Logo
6:15 am - 8:00 pmLHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
17h 45m1 stop Madrid Barajas
$814American Airlines
Tue, Nov 17 - Sat, Nov 28
American Airlines Logo
1:53 pm - 7:20 amSJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
13h 27m1 stop Charlotte Douglas
American Airlines Logo
12:10 pm - 10:36 pmLHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
14h 26m1 stop Miami
$885American Airlines
Booking Insights

Price, demand and travel trends for San Juan Luis Munoz Marin Intl Airport to London Heathrow 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 round-trip flight from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport?

Round-trip flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport typically range from $719 to $1,083. The lowest price found in the past 5 days was $691, on United Airlines.

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

Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport. It’s 14% cheaper than the average day, while Friday is the most expensive, with prices 11% higher.

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

•February is the cheapest month to fly from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport at $639 round-trip.
•June ($1,183) and July ($1,086) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 85% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport are cheapest 15 weeks before departure. Booking in this window typically costs about 34% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

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

Low season

September

Cheapest flight

$275
Beat the crowds with an average 25% drop in travelers.
The most popular month to fly with an average 23% increase in travelers.
One-way flight from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport

When to book flights from San Juan to London

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

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

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

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

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

    • Economy Class
    • Premium Economy Class
    • Business Class

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

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

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

    Round-trip flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport range from $719 to $1,083, with an average of $900 over the past 12 months. Anything below $719 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 7% above the $900 route average. Book 15 weeks before departure for the lowest fares.

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

    One-way fares from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport are currently lower than usual. Average one-way flight prices are about $298, which is 30% below the typical average for this route.

  • What car rental options are available at London Heathrow Airport (LHR)?

    London Heathrow Airport (LHR) hosts 5 major car rental companies, with daily rates averaging $39 for economy cars. Top options include:

    • GREEN MOTION
    • DRIVALIA
    • Europcar
    • Alamo
    • Hertz

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

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

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

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

    • Madrid Barajas (MAD) - 30% of one-stop connections
    • New York John F Kennedy Intl (JFK) - 20% of one-stop connections
    • Miami (MIA) - 16% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 15% of one-stop connections

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

    Yes. Flexible dates can save you up to 23% on flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport. Saturday is the cheapest departure day at $775 round-trip on average, while Friday is the most expensive at $1,001, a difference of $226.

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

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

    Flying via Madrid Barajas (MAD) gives the shortest average 1-stop total travel time at 13h 06m, compared with 14h 08m via Philadelphia (PHL) and 14h 13m via Washington, D.C. Dulles Intl (IAD).

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

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

  • What popular places can I visit in London Heathrow Airport?

    Some of the most popular sights in London Heathrow Airport are Hyde Park and Buckingham Palace. These are among the most viewed places in London Heathrow Airport on KAYAK.

Your guide to booking San Juan Luis Munoz Marin Intl Airport to London Heathrow 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 Friday. On this route, Saturday flights average $775, about $226 less than Friday fares (23% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 15 weeks before you fly. On this route, that window historically saves about 34% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport trip for February. Fares historically average $639 round-trip in that month - typically $544 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to London Heathrow Airport.

    • Hilton London Heathrow Airport

More options for your flight from San Juan to London

Complete your trip to London with a hotel stay or car rental

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