Cheap flights from Heathrow to San Juan

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The best prices from Heathrow to San Juan are usually found in February or March, booked 29 days in advance, depart on a Tuesday or Wednesday and return on a Monday

How to find the cheapest flight from
Heathrow (LHR) to San Juan (SJU)

LHR - PR1
Price
£501 - £937
PR1
Temperature
28 - 32 °C
PR1
Rainfall
33 - 147 mm

Popular in

December

High demand for flights, 22% potential price rise

Cheapest in

February

Best time to find cheap flights, 32% potential price drop

Round-trip from

£501

From Heathrow to San Juan

One-way from

£254

One-way flight from Heathrow 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 Heathrow to San Juan?

It’s generally more expensive to depart on a Monday, 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 Heathrow to San Juan?

Find a great deal and save up to 35% by booking at least 45 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Heathrow to San Juan within the next two weeks, with the cheapest ticket starting at £713.

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

The best pricing can be found in the month of March. Prices to San Juan from Heathrow average £724. You can even find prices in March for less than £724, as users have found deals to San Juan from as low as £373. The month of December appears to be one of the more expensive times to travel to San Juan from Heathrow. Flying in the targeted month can save you up to 19%.

When is the cheapest time to fly from Heathrow to San Juan (LHR - PR1)?

Unlike at midday, when flights are generally more expensive, you can save up to 21% on flights from Heathrow to San Juan by exploring options for tickets in the afternoon.

Cheap flights from Heathrow to San Juan in November, December 2020

The best prices found for LHR to SJU flights in November, December
6 Dec - 31 Dec
£344pp
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
5 Dec - 31 Dec
£349pp
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
3 Dec - 31 Dec
£355pp
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

Heathrow to San Juan 2021 flight deals

Cheap flights to San Juan from Heathrow found for next year
6 Dec - 31 Dec
£344pp
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
5 Dec - 31 Dec
£349pp
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
3 Dec - 31 Dec
£355pp
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 Heathrow to San Juan

Late deals on return flights to San Juan from Heathrow, departing today and this week
3 Dec - 31 Dec
£355pp
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
3 Dec - 31 Dec
£363pp
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
1 Dec - 30 Dec
£394pp
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

One-way flights to San Juan from Heathrow

The cheapest one-way flights from Heathrow to San Juan
05:00 - 07:58
Multiple Airlines
1 stop
30h 58m
LHR - SJU
Multiple Airlines
£296
Kiwi.com
14:35 - 00:41
Multiple Airlines
2 stops
38h 06m
LHR - SJU
Multiple Airlines
£255
KAYAK
08:40 - 07:58
Multiple Airlines
2 stops
27h 18m
LHR - SJU
Multiple Airlines
£265
Gotogate

Related info for your journey

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

Flight FAQs

From Heathrow to San Juan

Are flight prices decreasing from Heathrow 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 Heathrow 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 Heathrow 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. Some of the new policies that have been implemented to accommodate travellers flying from London Heathrow to San Juan are improved sanitation, HEPA filters, mask requirements, socially-distanced seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

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

Due to the rapidly changing circumstances due to COVID-19, airlines like British Airways, United Airlines, and American Airlines flying from London Heathrow to San Juan have implemented new flexible cancellation policies.

Can I find flights from Heathrow to San Juan for under £375 on Cheapflights?

Yes, there are multiple flights from Heathrow to San Juan for under £375. The cheapest flight booked recently is on Multiple Airlines for just £344, but on average you can expect to pay £387.

Are there direct flights from Heathrow to San Juan for under £375 on Cheapflights?

There are no direct flights from Heathrow 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 Heathrow to San Juan for under £375?

There are currently 20+ open flights from Heathrow to San Juan within the next 7 days for less than £375.

Is Heathrow 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 Heathrow. Book flights in a timely manner in correlation to your departure date.

Alternative routes for Heathrow to San Juan

Destination information for San Juan

Things to know before you go. Useful info for your trip from Heathrow to San Juan
Today's exchange rate
£1 = $1.34
Average temperature for November in San Juan
30.0 °C
Avg rainfall for November in San Juan
145.0 mm

Airports servicing London

Airports servicing San Juan

San Juan Isla Grande (SIG)

Top 7 airlines from Heathrow to San Juan

The chart below displays the airlines Cheapflights users travelling from Heathrow 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
United Airlines
£694 £861 No cancel fee 69%
Search United Airlines flights
Iberia
£446 £943 No change fee 77%
Search Iberia flights
American Airlines
£348 £953 No cancel fee 71%
Search American Airlines flights
British Airways
£380 £992 No cancel fee 70%
Search British Airways flights
Avianca
£847 £1,044 No cancel fee 71%
Search Avianca flights
Virgin Atlantic
£831 £1,114 No cancel fee 72%
Search Virgin Atlantic flights
Delta
£847 £1,165 No cancel fee N/A
Search Delta flights
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