SJU - LON

£156 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 12/10. 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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Flight 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

Mon, 6 Oct - Tue, 21 Oct
Lufthansa Logo
01:05 - 20:40SJU-LHR
14h 35m1 stop
Lufthansa Logo
12:00 - 23:57LHR-SJU
16h 57m1 stop
£389Lufthansa
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Wed, 29 Oct - Wed, 5 Nov
Virgin Atlantic Logo
13:06 - 06:20SJU-LHR
13h 14m1 stop
Virgin Atlantic Logo
10:10 - 00:56LHR-SJU
18h 46m1 stop
£400Virgin Atlantic
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Sun, 18 Jan - Tue, 27 Jan
Iberia Logo
18:10 - 16:35SJU-LHR
18h 25m1 stop
Iberia Logo
11:25 - 19:55LHR-SJU
12h 30m1 stop
£409Iberia
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Tue, 14 Oct - Tue, 21 Oct
KLM Logo
13:06 - 08:50SJU-LHR
14h 44m1 stop
KLM Logo
10:55 - 23:56LHR-SJU
18h 01m1 stop
£419KLM
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Wed, 29 Oct - Fri, 7 Nov
KLM Logo
14:31 - 09:00SJU-LHR
14h 29m1 stop
KLM Logo
10:10 - 00:56LHR-SJU
18h 46m1 stop
£425KLM
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Wed, 15 Oct - Wed, 22 Oct
United Airlines Logo
13:30 - 09:20SJU-LHR
14h 50m1 stop
United Airlines Logo
08:30 - 23:57LHR-SJU
20h 27m2 stops
£428United Airlines
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Wed, 29 Oct - Fri, 7 Nov
Delta Logo
07:15 - 08:45SJU-LHR
21h 30m2 stops
Delta Logo
15:50 - 14:12LHR-SJU
26h 22m2 stops
£433Delta
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Mon, 13 Oct - Tue, 21 Oct
United Airlines Logo
01:05 - 20:40SJU-LHR
14h 35m1 stop
United Airlines Logo
09:30 - 23:57LHR-SJU
19h 27m2 stops
£449United Airlines
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Wed, 1 Oct - Sat, 11 Oct
Delta Logo
13:32 - 12:05SJU-LHR
17h 33m1 stop
Delta Logo
20:25 - 11:56LHR-SJU
20h 31m1 stop
£466Delta
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Wed, 18 Feb - Thu, 26 Feb
Iberia Logo
18:10 - 10:50SJU-LGW
12h 40m1 stop
Iberia Logo
11:45 - 19:55LGW-SJU
12h 10m1 stop
£478Iberia
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Everything you should know

When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 24% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 17% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
£389
Overall average: £482
Lufthansa
Mon 6/10Tue 21/10
SJU - LHR • 1 stop
Cheapest one-way flight
£156
Multi-carrier
Sun 12/10
SJU - LGW • 1 stop
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to London!
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.

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

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 February, where tickets cost £491 (return) on average. On the other hand, the most expensive months are June and August, where the average cost of round-trip tickets is £805 and £719 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 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

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Good to know - Cheap tickets from San Juan to London

Low seasonFebruary
Cheapest flight£156
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly and prices are also 0% lower 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 £212 for a one-way ticket and £528 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?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between San Juan and London, with SkyTeam 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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