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Cheap flights from Puerto Rico to London Heathrow Airport from £181

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — LHR
26 Jul — 2 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Puerto Rico to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Puerto Rico to Heathrow
Explore the most affordable flight options available from Puerto Rico to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 June 2026.

Mon 16/1107:00
SJU
-
LHR
1 stop22h 00m
Virgin Atlantic
Fri 20/1112:30
LHR
-
SJU
1 stop14h 43m
Virgin Atlantic
Deal found 24/6£322
Sat 21/1115:35
SJU
-
LHR
1 stop16h 05m
Virgin Atlantic
Mon 30/1108:55
LHR
-
SJU
1 stop18h 18m
Virgin Atlantic
Deal found 25/6£377
Mon 3/814:59
SJU
-
LHR
1 stop17h 16m
Virgin Atlantic
Mon 10/818:35
LHR
-
SJU
1 stop22h 33m
Virgin Atlantic
Deal found 23/6£387
Fri 24/717:50
SJU
-
LHR
1 stop14h 25m
Virgin Atlantic
Fri 31/718:35
LHR
-
SJU
1 stop22h 25m
Virgin Atlantic
Deal found 23/6£388
Thu 30/713:10
SJU
-
LHR
1 stop12h 35m
Virgin Atlantic
Fri 31/719:50
LHR
-
SJU
1 stop21h 10m
Virgin Atlantic
Deal found 23/6£479
Fri 17/707:35
SJU
-
LHR
1 stop18h 10m
Virgin Atlantic
Tue 21/718:35
LHR
-
SJU
1 stop27h 03m
Virgin Atlantic
Deal found 24/6£502
Fri 24/706:00
SJU
-
LHR
1 stop20h 15m
Virgin Atlantic
Sat 25/720:05
LHR
-
SJU
1 stop20h 55m
Virgin Atlantic
Deal found 23/6£506
Tue 10/1115:46
SJU
-
LHR
1 stop35h 54m
United Airlines
Fri 13/1106:50
LHR
-
SJU
2 stops33h 00m
United Airlines
Deal found 25/6£525
Thu 6/808:46
PSE
-
LHR
2 stops26h 14m
Multiple Airlines
Thu 13/808:50
LHR
-
PSE
2 stops28h 06m
Multiple Airlines
Deal found 22/6£526
Mon 16/1118:42
SJU
-
LHR
1 stop13h 23m
Iberia
Thu 26/1106:15
LHR
-
SJU
1 stop14h 25m
Iberia
Deal found 25/6£538
Sun 5/707:05
SJU
-
LHR
1 stop18h 40m
Virgin Atlantic
Mon 13/711:45
LHR
-
SJU
1 stop17h 08m
Virgin Atlantic
Deal found 24/6£540
Mon 16/1114:05
SJU
-
LHR
1 stop12h 15m
Virgin Atlantic
Thu 26/1119:20
LHR
-
SJU
2 stops31h 53m
Virgin Atlantic
Deal found 25/6£551

Find flight deals from Puerto Rico to Heathrow

Keep the following information in mind while searching for Puerto Rico to Heathrow flight deals. Data was last updated 26 June 2026.

Round-trip from

£322

One-way from

£181

Popular in

June

Cheapest in

February

Average price

£885
Virgin Atlantic
  • Virgin Atlantic
  • 16/11-20/11
  • 2 total stops
  • 36h 43m total
  • Puerto Rico to London
Search Deals
Virgin Atlantic
  • Virgin Atlantic
  • 4/8
  • 1 total stop
  • 18h 25m total
  • Puerto Rico to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£118 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Puerto Rico to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 26 June 2026.
Use the filters below to find and compare flights from Puerto Rico to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 21/11

15:35-11:40

1 stop16h 05m

London Heathrow

Mon 30/11

08:55-23:13

1 stop18h 18m

£377

PonceLondon

PSE - LHR

PSELHR

Ponce Mercedita

Thu 6/8

08:46-16:00

2 stops26h 14m

London Heathrow

Thu 13/8

08:50-07:56

2 stops28h 06m

£526

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 21/10

13:25-07:15

1 stop12h 50m

London Heathrow

Thu 29/10

06:50-21:22

2 stops18h 32m

£622

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 16/11

15:35-13:45

2 stops18h 10m

London Heathrow

Fri 20/11

09:40-23:55

2 stops18h 15m

£640

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 9/10

14:00-09:00

1 stop14h 00m

London Heathrow

Tue 20/10

20:00-15:25

1 stop24h 25m

£659

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 4/10

07:00-05:55

2 stops17h 55m

London Heathrow

Mon 19/10

06:50-23:50

2 stops22h 00m

£659

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 6/10

01:00-08:35

2 stops26h 35m

London Heathrow

Sun 18/10

07:30-23:50

2 stops21h 20m

£664

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 10/10

01:00-06:55

2 stops24h 55m

London Heathrow

Sun 18/10

07:30-23:50

2 stops21h 20m

£667

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 5/9

01:00-06:55

2 stops24h 55m

London Heathrow

Sun 20/9

06:50-23:50

2 stops22h 00m

£670
Fastest return journey

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 24/9

17:59-13:15

1 stop14h 16m

London Heathrow

Mon 28/9

11:45-23:44

2 stops16h 59m

£676

Flights are sorted by cheapest return flights first.

Deals found on 25/6

Showing 1-10 of 24 resultsSorted by cheapest first
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Best time to book a flight from Puerto Rico to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Puerto Rico with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Puerto Rico to London Heathrow Airport

What is the cheapest month to book a flight from Puerto Rico to London Heathrow Airport?

Currently, February is the cheapest month in which you can book a flight from Puerto Rico to London Heathrow Airport (average of £77). Flying from Puerto Rico to London Heathrow Airport in June is currently the most expensive (average of £652). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How far ahead should I book a flight from Puerto Rico to London Heathrow Airport?

The price you pay for your flight from Puerto Rico to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 49 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

Find useful and relevant information for your journey from Puerto Rico to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Puerto Rico to London Heathrow Airport?

    There are many flights that can get you from Puerto Rico to London Heathrow Airport in 12h 50m. Fly via Virgin Atlantic, United Airlines, or British Airways to get the fastest option. There are 4179 mi between Puerto Rico and London Heathrow Airport. This flight may include one or multiple stops.

  • What are the most popular routes from Puerto Rico to London Heathrow Airport?

    The most popular flight routes from Puerto Rico to London Heathrow Airport are San Juan Luis Munoz Marin Intl - London Heathrow, Culebra - London Heathrow and Ponce Mercedita - London Heathrow.

  • Can I find deals for flights from Puerto Rico to Heathrow that include hotel bookings?

    Yes. In addition to deals on Puerto Rico to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Puerto Rico to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Puerto Rico to Heathrow.

  • Can I find deals for business class flights from Puerto Rico to Heathrow?

    Yes. Cheapflights offers flight deals from Puerto Rico to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Puerto Rico to London Heathrow Airport?

    Currently, February is the cheapest month in which you can book a flight from Puerto Rico to London Heathrow Airport (average of £77). Flying from Puerto Rico to London Heathrow Airport in June is currently the most expensive (average of £652). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Wembley
Luton
Gatwick
Croydon
Ilford
Slough
Hayes
Brentford
Colchester
Northampton
Kingston upon Thames
Swindon
Eastbourne
Watford
Poole
Southall
Romford
Ipswich

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How does Cheapflights help users find flights from Puerto Rico to Heathrow?

Cheapflights helps you search for flights from Puerto Rico to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Puerto Rico to Heathrow?

Cheapflights simply makes it quick and affordable to book flights from Puerto Rico to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Puerto Rico to Heathrow with no change fees?

Yes, we can. To see specific flights from Puerto Rico to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Puerto Rico to Heathrow become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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