Cheap flights from Heathrow to San Juan

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

All the information you need to plan the best LHR to SJU flight in 2021: compare Heathrow to San Juan flight prices with the expected peak season, weather and rainfall in San Juan.
LHR - PR1
Price
£486 - £910
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

Average price

£770

Average for round-trip flights in April 2021

Round-trip from

£486

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.
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 £692.

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 £703. You can even find prices in March for less than £703, as users have found deals to San Juan from as low as £362. 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%.

Cheap flights from Heathrow to San Juan in April, May 2021

The best prices found for LHR to SJU flights in April, May
6 May - 21 May
£366pp
LHR
London Heathrow
United Airlines
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
United Airlines
 
1 STOP
LHR
London Heathrow
6 May - 22 May
£367pp
LHR
London Heathrow
United Airlines
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
United Airlines
   
2 STOPS
LHR
London Heathrow
6 May - 21 May
£370pp
LHR
London Heathrow
United Airlines
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
United Airlines
   
2 STOPS
LHR
London Heathrow

Heathrow to San Juan 2021 flight deals

Cheap flights to San Juan from Heathrow found for this year
27 Oct - 7 Nov
£313pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
 
1 STOP
LHR
London Heathrow
6 Aug - 13 Aug
£327pp
LHR
London Heathrow
Lufthansa
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Lufthansa
 
1 STOP
LHR
London Heathrow
27 Oct - 7 Nov
£338pp
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

Last-minute flights from Heathrow to San Juan

Late deals on return flights to San Juan from Heathrow, departing today and this week
23 Apr - 6 May
£612pp
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
23 Apr - 6 May
£627pp
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
20 Apr - 29 Apr
£669pp
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

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Heathrow</span> to <span class="emphasized">San Juan</span> 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 £364 on Cheapflights?

Yes, there are multiple flights from Heathrow to San Juan for under £364. The cheapest flight booked recently is on Lufthansa for just £327, but on average you can expect to pay £399.

Are there direct flights from Heathrow to San Juan for under £291 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 £655?

There are currently 16+ open flights from Heathrow to San Juan within the next 7 days for less than £655.

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.

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

Airlines like Iberia, United Airlines, and Delta fly from Heathrow to San Juan in about 13h 55m. The time it takes to get you to your destination can typically vary by up to 3h 06m. This flight may include one or multiple stops.

What are the cheapest airlines to flying from Heathrow to San Juan return?

According to our current data, Lufthansa (£327), United Airlines (£366), and Iberia (£584) offers the cheapest pricing from Heathrow to San Juan. Users have found that Lufthansa is 54% cheaper than the other options available to this destination.

Alternative routes for Heathrow to San Juan

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for San Juan

Things to know before you go - useful duration and weather info for your trip from Heathrow to San Juan.
Today's exchange rate
£1 = $1.38
Average temperature for April in San Juan
30.0 °C
Avg rainfall for April in San Juan
135.0 mm

Airports servicing London

Airports servicing San Juan

San Juan Isla Grande (SIG)

Top 7 airlines flying 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 cancel 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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