SJU - LON

£192 Find Cheap Flights from San Juan to London

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 London 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

 
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 London (SJU-LON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from San Juan to London 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 London

Wed, 27 Aug - Fri, 5 Sep
KLM Logo
13:34 - 10:00SJU-LGW
15h 26m1 stop
KLM Logo
12:00 - 23:51LGW-SJU
16h 51m1 stop
£403KLM
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Wed, 13 Aug - Fri, 22 Aug
KLM Logo
13:34 - 10:00SJU-LGW
15h 26m1 stop
KLM Logo
12:00 - 23:51LGW-SJU
16h 51m1 stop
£404KLM
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Sun, 10 Aug - Tue, 26 Aug
American Airlines Logo
16:49 - 10:35SJU-LHR
12h 46m1 stop
American Airlines Logo
07:45 - 18:30LHR-SJU
15h 45m1 stop
£407American Airlines
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Mon, 29 Sep - Tue, 7 Oct
Air Canada Logo
01:05 - 21:00SJU-LHR
38h 55m2 stops
Air Canada Logo
14:05 - 13:45LHR-SJU
28h 40m2 stops
£428Air Canada
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Tue, 26 Aug - Tue, 9 Sep
Delta Logo
13:16 - 10:30SJU-LHR
16h 14m1 stop
Delta Logo
06:30 - 23:51LHR-SJU
22h 21m2 stops
£434Delta
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Tue, 23 Sep - Wed, 1 Oct
United Airlines Logo
01:05 - 20:40SJU-LHR
14h 35m1 stop
United Airlines Logo
09:30 - 23:57LHR-SJU
19h 27m2 stops
£434United Airlines
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Mon, 3 Nov - Wed, 12 Nov
United Airlines Logo
14:20 - 10:50SJU-LHR
16h 30m2 stops
United Airlines Logo
07:30 - 22:22LHR-SJU
18h 52m2 stops
£438United Airlines
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Mon, 13 Oct - Thu, 23 Oct
Delta Logo
07:00 - 09:15SJU-LHR
21h 15m1 stop
Delta Logo
15:15 - 12:52LHR-SJU
26h 37m2 stops
£442Delta
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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
£471Air Canada
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Sun, 10 Aug - Sun, 17 Aug
American Airlines Logo
12:00 - 09:25SJU-LHR
16h 25m1 stop
American Airlines Logo
13:40 - 23:59LHR-SJU
15h 19m1 stop
£481American Airlines
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Booking Insights

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

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

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

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

When flying from San Juan to London, you should consider leaving on a Tuesday and avoid Saturdays if you are looking for the best rates. For your return to San Juan, you’ll find the best rates on Mondays and the most expensive ones on Fridays.

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

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, 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 is September, where tickets cost £494 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £838 and £727 respectively.

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

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, 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, 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

Low seasonJanuary
Cheapest flight£192
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly (1% more expensive on average)
Flight from San Juan to London Gatwick 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 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 flights

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

    In the last 3 days, the lowest price for a flight from San Juan Luis Munoz Marin Intl Airport to London was £254 for a one-way ticket and £533 for a return.

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

    On your way to London, you’ll fly out from San Juan Luis Munoz Marin Intl. You’ll be landing in one of London’s 2 airports: London Gatwick or London Heathrow.

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

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

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

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

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

    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.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London 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?

    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 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?

    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 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 London

Information on your arrival and departure airports

San Juan (SJU)

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