Cheap flights from London to San Juan

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

All the information you need to plan the best LON to SJU flight in 2022: compare London to San Juan flight prices with the expected peak season, weather and rainfall in San Juan.
LON - SJU
Price
£731 - £1,155
SJU
Temperature
25 - 28 °C
SJU
Rainfall
55 - 156 mm

Popular in

December

High demand for flights, 21% potential price rise

Cheapest in

January

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

Round-trip from

£601

From London (LON) to San Juan

One-way from

£243

One-way flight from London (LON) to San Juan

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
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 46 days in advance, which can save you up to 24% on flights from London to San Juan compared to booking the week you need them. Waiting 46 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 £803. For sooner than that we have options available in the next 3 days from £932.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to San Juan as you normally would.

Cheap flights from London to San Juan in June, July 2022

The best prices found for LON to SJU flights in June, July
30 Jun - 4 Jul
£956pp
LHR
London Heathrow
JetBlue
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
JetBlue
 
1 STOP
LHR
London Heathrow
5 Jul - 19 Oct
£988pp
LHR
London Heathrow
TAP AIR PORTUGAL
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
TAP AIR PORTUGAL
   
2 STOPS
LHR
London Heathrow
6 Jul - 19 Oct
£1,054pp
LHR
London Heathrow
TAP AIR PORTUGAL
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
TAP AIR PORTUGAL
   
2 STOPS
LHR
London Heathrow

London to San Juan 2022 flight deals

Cheap flights to San Juan from London found for this year
12 Oct - 17 Oct
£582pp
LGW
London Gatwick
JetBlue
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
JetBlue
 
1 STOP
LGW
London Gatwick
18 Oct - 25 Oct
£584pp
LGW
London Gatwick
JetBlue
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
JetBlue
 
1 STOP
LGW
London Gatwick
26 Dec - 5 Jan
£587pp
LGW
London Gatwick
JetBlue
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
JetBlue
 
1 STOP
LGW
London Gatwick

Last-minute flights from London to San Juan

Late deals on return flights to San Juan from London, departing today and this week
5 Jul - 19 Oct
£988pp
LHR
London Heathrow
TAP AIR PORTUGAL
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
TAP AIR PORTUGAL
   
2 STOPS
LHR
London Heathrow
6 Jul - 19 Oct
£1,054pp
LHR
London Heathrow
TAP AIR PORTUGAL
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
TAP AIR PORTUGAL
   
2 STOPS
LHR
London Heathrow
5 Jul - 18 Oct
£1,068pp
LHR
London Heathrow
TAP AIR PORTUGAL
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
TAP AIR PORTUGAL
   
2 STOPS
LHR
London Heathrow

One-way flights to San Juan from London

The cheapest one-way flights from London to San Juan
09:10 - 21:11
Multiple Airlines
1 stop
17h 01m
LGW - SJU
Multiple Airlines
£343
Kiwi.com
09:10 - 21:22
Multiple Airlines
1 stop
17h 12m
LGW - SJU
Multiple Airlines
£445
Combigo
03:45 - 21:11
Multiple Airlines
2 stops
46h 26m
STN - SJU
Multiple Airlines
£243
Kiwi.com

Related info for your journey

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

Flight FAQs

From London to San Juan

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 Virgin Atlantic, British Airways, and Finnair. 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 £600 on Cheapflights?

Yes, there are multiple flights from London to San Juan for under £600. The cheapest flight booked recently is on JetBlue for just £582, but on average you can expect to pay £617.

Are there last-minute flights available from London to San Juan for under £1,000?

There are currently 20+ open flights from London to San Juan within the next 7 days for less than £1,000.

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

Cheapflights users have booked flights from London to San Juan round-trip from £582. Another airline that can offer you cheap pricing is Iberia. JetBlue is priced at 22% lower than the current average price of a flight leaving 3 months from now.

What are the most popular airlines that fly from London to San Juan?

When booking a flight from London to San Juan, you may want to consider flying on American Airlines, Avianca or Finnair as they are the most popular for this route.

What are the most popular routes from London to San Juan?

The most popular route from London to San Juan is London Heathrow - San Juan Luis Munoz Marin Intl. You may also consider London Gatwick - San Juan Luis Munoz Marin Intl or London City - San Juan Luis Munoz Marin Intl.

What are the cheapest flights from London to San Juan?

While on average a flight from London to San Juan is generally £4,242, our data shows the cheapest flight currently is £4,242. When looking at the most popular route, (London Heathrow - San Juan Luis Munoz Marin Intl), you can expect to pay £572 for that flight.

COVID Restrictions

View COVID Travel Restrictions for San Juan, Puerto Rico

Do I need a COVID test to fly to San Juan from London?

Information is based on travel restrictions from London to San Juan

Most visitors from London need to provide a negative COVID-19 test result and/or quarantine to enter San Juan.

COVID-19 testing requirements
Visitors from London are not required to present a negative COVID-19 PCR test or antigen result upon entering San Juan.

Quarantine requirements
Visitors from London are not required to quarantine after entering San Juan.

Documents
Travel Declaration Form - Must be completed prior to travel to Puerto Rico.


Do I need a test to fly back to London from San Juan?

Returning to London from San Juan

COVID-19 testing requirements
Visitors from San Juan are not required to present a negative COVID-19 PCR test or antigen result upon entering London.

Quarantine requirements
Visitors from San Juan are not required to quarantine after entering London.

Hide COVID Travel Restrictions for San Juan, Puerto Rico

Destination information for San Juan

Things to know before you go - useful duration and weather info for your trip from London to San Juan.
Today's exchange rate
£1 = $1.22
Average temperature for June in San Juan
32.0 °C
Avg rainfall for June in San Juan
93.0 mm

Airports servicing London

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

Airports servicing San Juan

San Juan Isla Grande (SIG)

Top 5 airlines flying from London to San Juan

The chart below displays the airlines Cheapflights users travelling from London to San Juan 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
British Airways
£478 £865 No cancel fee 70%
Search British Airways flights
Virgin Atlantic
£495 £605 No cancel fee 72%
Search Virgin Atlantic flights
JetBlue
£517 £688 No cancel fee 62%
Search JetBlue flights
Iberia
£584 £817 No cancel fee 77%
Search Iberia flights
Finnair
£651 £805 No cancel fee 76%
Search Finnair flights
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