Cheap flights from London to San Juan

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

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 55 days in advance, which can save you up to 30% on flights from London to San Juan compared to booking the week you need them. Waiting 55 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 £576. For sooner than that we have options available in the next 3 days from £738.

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 in the midday, which is usually more expensive.

Cheap flights from London to San Juan in August, September 2020

The best prices found for LON to SJU flights in August, September
21 Aug - 31 Aug
£461pp
STN
London Stansted
Multiple airlines
     
3 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
     
3 STOPS
STN
London Stansted
21 Aug - 31 Aug
£462pp
STN
London Stansted
Multiple airlines
     
3 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
     
3 STOPS
STN
London Stansted
19 Aug - 24 Aug
£471pp
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

London to San Juan 2020 flight deals

Cheap flights to San Juan from London found for this year
1 Dec - 3 Dec
£415pp
LGW
London Gatwick
Multiple airlines
     
3 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
   
2 STOPS
LGW
London Gatwick
21 Aug - 31 Aug
£461pp
STN
London Stansted
Multiple airlines
     
3 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
     
3 STOPS
STN
London Stansted
21 Aug - 31 Aug
£462pp
STN
London Stansted
Multiple airlines
     
3 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
     
3 STOPS
STN
London Stansted

Last-minute flights from London to San Juan

Late deals on return flights to San Juan from London, departing today and this week
24 Jul - 31 Jul
£900pp
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
24 Jul - 31 Jul
£901pp
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
24 Jul - 31 Jul
£936pp
LHR
London Heathrow
Multiple airlines
     
3 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
     
3 STOPS
LHR
London Heathrow

One-way flights to San Juan from London

The cheapest one-way flights from London to San Juan
13:35 - 16:06
Multiple Airlines
2 stops
55h 31m
STN - SJU
Multiple Airlines
£261
Kiwi.com
18:05 - 15:42
Multiple Airlines
3 stops
50h 37m
STN - SJU
Multiple Airlines
£133
Kiwi.com
17:35 - 15:42
Multiple Airlines
3 stops
51h 07m
LGW - SJU
Multiple Airlines
£136
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.

Can I find flights from London to San Juan for under £500 on Cheapflights?

Yes, there are multiple flights from London to San Juan for under £500. The cheapest flight booked recently is on Multiple Airlines for just £415, but on average you can expect to pay £507.

Are there direct flights from London to San Juan for under £400 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 £900?

There are currently 20+ open flights from London to San Juan within the next 7 days for less than £900.

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?

British Airways, Virgin Atlantic, and KLM can get you from London to San Juan in just under 14h 39m. Your travel time can differ by up to 3h 19m. This flight may include one or multiple stops.

What is the cheapest airline to fly from London to San Juan return?

Flying on British Airways is currently your cheapest option to San Juan, with prices starting at £383.

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 August in San Juan
32.0 °C
Avg rainfall for August in San Juan
129.0 mm

Airports servicing London

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

Airports servicing San Juan

San Juan Isla Grande (SIG)
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