SJU - LHR

£221 Find Cheap Flights from San Juan to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Juan to Heathrow departing on 29/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Juan to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Juan to London, as well as popular online travel agencies
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Flights Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from San Juan to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from San Juan to Heathrow

Wed, 27 Aug - Fri, 5 Sep
KLM Logo
13:16 - 06:45SJU-LHR
12h 29m1 stop
KLM Logo
10:55 - 23:51LHR-SJU
17h 56m1 stop
£426KLM
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Tue, 26 Aug - Tue, 9 Sep
Delta Logo
13:16 - 08:05SJU-LHR
13h 49m1 stop
Delta Logo
08:40 - 23:51LHR-SJU
20h 11m2 stops
£432Delta
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Wed, 24 Sep - Wed, 1 Oct
United Airlines Logo
07:00 - 11:35SJU-LHR
23h 35m1 stop
United Airlines Logo
13:00 - 23:57LHR-SJU
15h 57m1 stop
£432United Airlines
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Tue, 19 Aug - Wed, 27 Aug
KLM Logo
13:16 - 06:45SJU-LHR
12h 29m1 stop
KLM Logo
09:20 - 22:07LHR-SJU
17h 47m1 stop
£434KLM
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Wed, 22 Oct - Wed, 29 Oct
United Airlines Logo
13:30 - 10:40SJU-LHR
16h 10m2 stops
United Airlines Logo
09:30 - 23:36LHR-SJU
18h 06m2 stops
£435United Airlines
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Mon, 13 Oct - Thu, 23 Oct
Delta Logo
14:05 - 13:30SJU-LHR
18h 25m2 stops
Delta Logo
20:10 - 16:33LHR-SJU
25h 23m2 stops
£440Delta
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Tue, 19 Aug - Tue, 26 Aug
United Airlines Logo
14:55 - 11:25SJU-LHR
15h 30m1 stop
United Airlines Logo
09:30 - 23:57LHR-SJU
19h 27m2 stops
£441United Airlines
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Wed, 29 Oct - Thu, 6 Nov
Delta Logo
07:15 - 08:50SJU-LHR
21h 35m2 stops
Delta Logo
16:35 - 12:58LHR-SJU
24h 23m1 stop
£441Delta
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Mon, 6 Oct - Sun, 19 Oct
Air Canada Logo
01:05 - 21:00SJU-LHR
38h 55m2 stops
Air Canada Logo
15:50 - 12:00LHR-SJU
25h 10m2 stops
£468Air Canada
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Wed, 24 Sep - Fri, 10 Oct
Air Canada Logo
01:05 - 06:30SJU-LHR
24h 25m2 stops
Air Canada Logo
17:40 - 23:57LHR-SJU
35h 17m2 stops
£507Air Canada
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Booking Insights

KAYAK's insights & trends for San Juan to Heathrow flights

Get data-powered insights and trends into flights from San Juan to Heathrow to help you find the cheapest flights, the best time to fly and much more.

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

What’s the cheapest day of the week to fly from San Juan to London Heathrow Airport?

The average price of all round-trip flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.

For San Juan to London Heathrow Airport, Tuesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from London Heathrow Airport back to San Juan, the best deals are generally found on Monday, with Friday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport is September, where tickets cost £513 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £914 and £711 respectively.

How far in advance should I book a flight from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport, you should book around 3 weeks before departure, which saves you about 30% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

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Good to know - Cheap tickets from San Juan to London Heathrow Airport

Low seasonFebruary
Cheapest flight£221
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly (17% more expensive on average)
Flight from San Juan to London Heathrow Airport

When to book flights from San Juan to Heathrow

Are your dates flexible? Find out the best times to travel from San Juan to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking San Juan to London Heathrow Airport flights

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

    In the last 3 days, the lowest price for a flight from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport was £294 for a one-way ticket and £567 for a return.

  • Which airports will I be using when flying from San Juan to London Heathrow Airport?

    San Juan and London Heathrow Airport are both served by 1 main airport. You will leave San Juan from San Juan Luis Munoz Marin Intl and will be arriving at London Heathrow.

  • Which aircraft models fly most regularly from San Juan to London Heathrow Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Juan to London Heathrow Airport?

    Star Alliance, and SkyTeam are the airline alliances operating flights between San Juan and London Heathrow Airport, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from San Juan to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Juan to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Juan to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from San Juan is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Juan to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to San Juan with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Juan to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from San Juan up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from San Juan to Heathrow

Information on your arrival and departure airports

San Juan (SJU)
Heathrow (LHR)

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