Cheap flights from San Juan (SJU) to London (LON)

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The best prices from San Juan to London are usually found in February or March, booked 60 days in advance, depart on a Wednesday or Sunday and return on a Wednesday

How to find the cheapest flight from
San Juan (SJU) to London (LON)

All the information you need to plan the best SJU to LON flight in 2021: compare San Juan to London flight prices with the expected peak season, weather and rainfall in London.
PR1 - LON
Price
$693 - $1,284
LON
Temperature
48.2 - 73.4 °F
LON
Rainfall
1.4 - 2.8 inches

Popular in

June

High demand for flights, 33% potential price rise

Cheapest in

February

Best time to find cheap flights, 20% potential price drop

Round-trip from

$693

From San Juan to London

One-way from

$312

One-way flight from San Juan to London

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from San Juan to London?

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from San Juan to London?

To save on the cost of your flight from San Juan to London, book at least 61 days before your planned departure. Booking around this time can save you about 44% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $910 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,146.

What is the cheapest month to fly from San Juan to London?

Our data shows that October tends to be the cheapest month to fly to London from San Juan. Users have commonly found prices around $714 for the month, but tickets can be as low as $445. Due to multiple factors, prepare for potentially higher prices in July.

When is the cheapest time to fly from San Juan to London (PR1 - LON)?

A simple way to save on the total cost of your ticket is to fly from San Juan to London in the evening. If you’re flexible enough to do this you can expect to save up to 10% on your trip compared to booking a flight at noon.

Cheap flights from San Juan to London in May, June 2021

The best prices found for SJU to LON flights for May, June
15 Jun - 20 Sep
$801pp
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
   
2 STOPS
LGW
London Gatwick
LGW
London Gatwick
Multiple Airlines
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
15 Jun - 20 Sep
$872pp
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
15 Jun - 30 Sep
$878pp
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
   
2 STOPS
LGW
London Gatwick
LGW
London Gatwick
Multiple Airlines
     
3 STOPS
SJU
San Juan Luis Munoz Marin Intl

San Juan to London 2021 flight deals

Cheap flights to London from San Juan found for this year
17 Aug - 31 Aug
$671pp
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
SJU
San Juan Luis Munoz Marin Intl
17 Aug - 31 Aug
$678pp
SJU
San Juan Luis Munoz Marin Intl
Iberia
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Iberia
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
30 Sep - 7 Oct
$700pp
SJU
San Juan Luis Munoz Marin Intl
British Airways
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
British Airways
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl

Last minute flights from San Juan to London

Late deals on round-trip flights to London from San Juan, departing today and this week
21 May - 31 May
$1,879pp
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
21 May - 31 May
$1,895pp
SJU
San Juan Luis Munoz Marin Intl
British Airways
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
British Airways
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
21 May - 31 May
$2,149pp
SJU
San Juan Luis Munoz Marin Intl
Delta
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Delta
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl

One-way flights to London from San Juan

The cheapest one-way flights from San Juan to London
5:30 pm - 10:55 am
Iberia
1 Stop
12h 25m
SJU - LHR
Iberia
$468
Travelgenio
1:30 pm - 2:15 am
Multiple Airlines
1 Stop
31h 45m
SJU - LHR
Multiple Airlines
$506
Kiwi.com
6:50 am - 6:20 am
Multiple Airlines
2 Stops
18h 30m
SJU - LHR
Multiple Airlines

Related info for your journey

Useful info, stats and facts about <span class="emphasized">San Juan</span> to <span class="emphasized">London</span> flights.

Flight FAQs

From San Juan to London

Are flight prices decreasing from San Juan to London due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both San Juan and London for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Which airlines flying from San Juan to London have flexible cancellations due to COVID-19?

Some of our airline partners flying from San Juan to London have new flexible policies in place due to COVID-19. Delta, American Airlines, and Iberia are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Delta with this kind of flexibility.

Can I find flights from San Juan to London for under $700 on Cheapflights?

Yes, there are multiple flights from San Juan to London for under $700. The cheapest flight booked recently is on Multiple Airlines for just $671, but on average you can expect to pay $724.

Are there nonstop flights from San Juan to London for under $700 on Cheapflights?

There are no nonstop flights from San Juan to London, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from San Juan to London for under $1,900?

There are currently 6+ open flights from San Juan to London within the next 7 days for less than $1,900.

Is San Juan weather warmer or cooler than London?

Our data indicates that the weather will be 90 °F on average in the month of June. The temperature in London is typically colder than in San Juan. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

How long is the flight from San Juan to London?

British Airways, Delta, and American Airlines can get you from San Juan to London in just under 14h 06m. Your travel time can differ by up to 49m. This flight may include one or multiple stops.

What are the cheapest airlines flying from San Juan to London round-trip?

Cheapflights users have booked flights from San Juan to London round-trip from $678. Other airlines that can offer you cheap pricing are British Airways, from $700, and TAP AIR PORTUGAL, from $706. Iberia is currently priced 21% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from San Juan to London one-way?

$468 is the cheapest one-way deal found within the past few days, from Iberia.

Destination information for London

Things to know before you go - useful duration and weather info for your trip from San Juan to London.
Today's exchange rate
$1 = £0.72
Average temperature for May in London
64.4 °F
Avg rainfall for May in London
2.0 ″

Airports servicing San Juan

San Juan Isla Grande (SIG)

Airports servicing London

Gatwick (LGW)
City (LCY)
Stansted (STN)
Luton (LTN)
Southend (SEN)

Top 6 airlines flying from San Juan to London

The chart below displays the airlines Cheapflights users traveling from San Juan to London choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Virgin Atlantic
$548 $826 No cancel fee 72%
British Airways
$529 $892 No cancel fee 70%
Delta
$557 $954 No cancel fee N/A
American Airlines
$625 $959 No cancel fee 71%
United Airlines
$717 $1,069 No cancel fee 69%
Iberia
$652 $1,322 No cancel fee 77%
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