Cheap flights from London to San Juan

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The best prices from London to San Juan are usually found in March or January, booked 45 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Return
Economy
Thu 5/11
Thu 12/11
From
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To
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Leaving on
Thu 5/11
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To
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To
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Leaving on
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To
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To
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Depart
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From
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To
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#removeLegButton($self.id("removeLeg$leg"))
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How to find the cheapest flight from
London (LON) to San Juan (SJU)

LON - PR1
Price
£593 - £888
PR1
Temperature
28 - 32 °C
PR1
Rainfall
33 - 147 mm

Popular in

December

High demand for flights, 16% potential price rise

Cheapest in

March

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

Round-trip from

£593

From London to San Juan

One-way from

£188

One-way flight from London to San Juan

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 return from London to San Juan?

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 20% on your flight compared to booking on days when demand is much higher.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 45 days in advance, which can save you up to 35% on flights from London to San Juan compared to booking the week you need them. Waiting 45 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £731. For sooner than that we have options available in the next 3 days from £820.

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

March can be a great time to fly to San Juan from London with a flight ticket averaging about £743. Cheapflights users have found deals in the month of March for as cheap as £383. The most expensive prices can be found in the month of December.

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

It’s typically best to fly out from London to San Juan in the evening. Doing so could potentially save you 3% on the flight price compared to flying at midday, which is usually more expensive.

Cheap flights from London to San Juan in October, November 2020

The best prices found for LON to SJU flights in October, November
14 Nov - 28 Nov
£422pp
LHR
London Heathrow
Multiple airlines
     
3 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
14 Nov - 28 Nov
£437pp
LGW
London Gatwick
Multiple airlines
     
3 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
     
3 STOPS
LGW
London Gatwick
17 Nov - 30 Nov
£440pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
 
1 STOP
LHR
London Heathrow

London to San Juan 2020 flight deals

Cheap flights to San Juan from London found for this year
1 Dec - 6 Dec
£368pp
LHR
London Heathrow
Multiple airlines
     
3 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
8 Dec - 6 Jan
£373pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
7 Dec - 6 Jan
£375pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow

Last-minute flights from London to San Juan

Late deals on return flights to San Juan from London, departing today and this week
4 Nov - 13 Dec
£495pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
3 Nov - 13 Dec
£519pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
3 Nov - 12 Dec
£538pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow

One-way flights to San Juan from London

The cheapest one-way flights from London to San Juan
04:45 - 08:38
Multiple Airlines
2 stops
31h 53m
LGW - SJU
Multiple Airlines
£207
Kiwi.com
06:10 - 08:38
Multiple Airlines
2 stops
30h 28m
LHR - SJU
Multiple Airlines
£214
Kiwi.com
10:50 - 00:54
Multiple Airlines
3 stops
42h 04m
STN - SJU
Multiple Airlines
£188
Kiwi.com

Related info for your journey

Useful info, stats and facts about London to San Juan flights.

Flight FAQs

From London to San Juan

Are flight prices decreasing from London to San Juan 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 London and San Juan 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.

What safety measures are being taken by airlines flying from London to San Juan to control the spread of COVID-19?

Airlines globally have implemented additional safety measures to accommodate you. Delta is one of them. Airline carriers are regularly disinfecting and sanitising their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially-distanced seating (for a limited time) will work towards keeping travellers safer while flying from London to San Juan. Policies will vary by airline.

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

Some of the carriers operating flights from London to San Juan that may be offering flexible cancellation policies are British Airways, United Airlines, and American Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from London to San Juan for under £385 on Cheapflights?

Yes, there are multiple flights from London to San Juan for under £385. The cheapest flight booked recently is on Multiple Airlines for just £368, but on average you can expect to pay £398.

Are there direct flights from London to San Juan for under £385 on Cheapflights?

There are no direct flights from London to San Juan, 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 London to San Juan for under £538?

There are currently 20+ open flights from London to San Juan within the next 7 days for less than £538.

Is London weather warmer or cooler than San Juan?

We forecast the temperature to be around the 32 °Cs in June, on average. The temperature in San Juan is generally hotter than in London. Book flights in a timely manner in correlation to your departure date.

How long does is the flight from London to San Juan?

KLM, Virgin Atlantic, and Lufthansa can get you from London to San Juan in just under 17h 40m. Your travel time can differ by up to 2h 11m. This flight may include one or multiple stops.

Destination information for San Juan

Things to know before you go. Useful info for your trip from London to San Juan
Today's exchange rate
£1 = $1.31
Average temperature for October in San Juan
31.0 °C
Avg rainfall for October in San Juan
147.0 mm

Airports servicing London

Heathrow (LHR)
Luton (LTN)
Stansted (STN)
City (LCY)
Southend (SEN)

Airports servicing San Juan

San Juan Isla Grande (SIG)
Home Caribbean Puerto Rico San Juan Cheap flights from London to San Juan
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