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
£488 - £913
PR1
Temperature
25 - 28 °C
PR1
Precipitation
55 - 156 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

£702

Average for round-trip flights in 9월 2021

Round-trip from

488원

From London 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 London Heathrow Airport to San Juan?

Travellers have found it’s best to book a flight 45 days in advance to save up to 35% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 45 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London Heathrow Airport to San Juan 1-2 weeks in advance for as low as £694, or £778 for flights within the next 24 hours.

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

Our data shows that March tends to be the cheapest month to fly to San Juan from London Heathrow Airport. Users have commonly found prices around £705 for the month, but tickets can be as low as £364. Due to multiple factors, prepare for potentially higher prices in December.

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

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

Cheap flights from Heathrow to San Juan in September, October 2021

The best prices found for LHR to SJU flights in September, October
27 Oct - 3 Nov
£452pp
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
27 Oct - 3 Nov
£464pp
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
27 Oct - 3 Nov
£470pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
     
3 STOPS
LHR
London Heathrow

London Heathrow to San Juan 2021 flight deals

Cheap flights to San Juan from Heathrow found for this year
3 Nov - 10 Nov
£418pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
3 Nov - 10 Nov
£441pp
LHR
London Heathrow
British Airways
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
British Airways
 
1 STOP
LHR
London Heathrow
27 Oct - 3 Nov
£452pp
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
7 Oct - 16 Oct
£608pp
LHR
London Heathrow
Virgin Atlantic
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Virgin Atlantic
 
1 STOP
LHR
London Heathrow
7 Oct - 11 Oct
£696pp
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
7 Oct - 11 Oct
£743pp
LHR
London Heathrow
Multiple airlines
     
3 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Iberia
 
1 STOP
LHR
London Heathrow

One-way flights to San Juan from London Heathrow

The cheapest one-way flights from Heathrow to San Juan
13:30 - 22:45
TAP AIR PORTUGAL
2 stops
37h 15m
LHR - SJU
TAP AIR PORTUGAL
08:40 - 23:54
Multiple Airlines
3 stops
43h 14m
LHR - SJU
Multiple Airlines
£537
Combigo
10:05 - 23:47
JetBlue
1 stop
18h 42m
LHR - SJU
JetBlue

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

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.

Are flight prices decreasing from London Heathrow Airport 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 Heathrow Airport 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 Heathrow Airport to San Juan for under £500 on Cheapflights?

Yes, there are multiple flights from London Heathrow Airport to San Juan for under £500. The cheapest flight booked recently is on British Airways for just £411, but on average you can expect to pay £450.

Are there last-minute flights available from London Heathrow Airport to San Juan for under £700?

There are currently 14+ open flights from London Heathrow Airport to San Juan within the next 7 days for less than £700.

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

Our cheapest airline available from London Heathrow Airport to San Juan is British Airways. Our recent data shows that you can find tickets from as low as £411 on this airline. Additional options worth looking into are Virgin Atlantic and JetBlue, starting at £435 and £448 round-trip. British Airways is currently priced 42% below the average price you’ll pay for this route.

What are the cheapest flights from London Heathrow Airport to San Juan?

The cheapest flight price from London Heathrow Airport to San Juan is £279. On average you can expect to pay £1,049. The most popular route, (London Heathrow - San Juan Luis Munoz Marin Intl), can usually be booked for £412.

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

American Airlines, Avianca and British Airways are the most popular airlines when flying from London Heathrow Airport to San Juan.

COVID Restrictions

View COVID Travel Restrictions for San Juan, Puerto Rico

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

Information is based on travel restrictions from London Heathrow to San Juan

Most visitors from London Heathrow will not be allowed to enter San Juan.

COVID-19 testing requirements
Visitors from London Heathrow must present a negative RT-PCR (NAAT) test taken 72 hours before departing to San Juan.

Quarantine requirements
Visitors from London Heathrow 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 Heathrow from San Juan?

Returning to London Heathrow from San Juan

COVID-19 testing requirements
Visitors from San Juan must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to London Heathrow.

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

Hide COVID Travel Restrictions for San Juan, Puerto Rico

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 = $1.37
Average temperature for September in San Juan
32.0 °C
Avg rainfall for September in San Juan
146.0 mm

Airports servicing London

Airports servicing San Juan

San Juan Isla Grande (SIG)

Top 7 airlines flying from London 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
American Airlines
£254 £696 No cancel fee 71%
Search American Airlines flights
British Airways
£278 £724 No cancel fee 70%
Search British Airways flights
Iberia
£326 £689 No cancel fee 77%
Search Iberia flights
United Airlines
£507 £629 No cancel fee 69%
Search United Airlines flights
Virgin Atlantic
£607 £814 No cancel fee 72%
Search Virgin Atlantic flights
Delta
£619 £851 No cancel fee N/A
Search Delta flights
Avianca
£619 £762 No cancel fee 71%
Search Avianca flights
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