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Cheap flights from Puerto Rico to London Heathrow Airport from £226

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 14/4. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — LHR
30 Mar — 6 Apr1
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 28 February 2026.

Wed 4/312:15
SJU
-
LHR
1 stop14h 40m
JetBlue
Sun 8/307:45
LHR
-
SJU
1 stop23h 09m
JetBlue
Deal found 24/2£449
Wed 25/305:10
SJU
-
LHR
1 stop21h 45m
JetBlue
Wed 1/408:40
LHR
-
SJU
1 stop21h 54m
JetBlue
Deal found 25/2£461
Wed 29/417:42
SJU
-
LHR
1 stop13h 23m
Virgin Atlantic
Wed 6/506:15
LHR
-
SJU
2 stops19h 09m
Virgin Atlantic
Deal found 24/2£496
Tue 3/323:59
SJU
-
LHR
1 stop17h 41m
JetBlue
Tue 10/309:20
LHR
-
SJU
1 stop15h 36m
JetBlue
Deal found 26/2£513
Wed 1/405:01
SJU
-
LHR
1 stop20h 29m
JetBlue
Tue 7/408:40
LHR
-
SJU
1 stop18h 28m
JetBlue
Deal found 28/2£513
Sun 29/306:15
SJU
-
LHR
1 stop19h 10m
Virgin Atlantic
Wed 8/411:15
LHR
-
SJU
1 stop14h 03m
Virgin Atlantic
Deal found 24/2£521
Tue 21/414:45
SJU
-
LHR
1 stop17h 30m
Virgin Atlantic
Tue 28/409:20
LHR
-
SJU
1 stop16h 04m
Virgin Atlantic
Deal found 25/2£522
Mon 2/323:59
SJU
-
LHR
1 stop17h 41m
JetBlue
Mon 9/308:05
LHR
-
SJU
1 stop22h 49m
JetBlue
Deal found 26/2£523
Wed 22/407:15
SJU
-
LHR
1 stop18h 05m
Virgin Atlantic
Wed 29/413:25
LHR
-
SJU
1 stop14h 48m
Virgin Atlantic
Deal found 28/2£524
Wed 29/405:01
SJU
-
LHR
1 stop20h 29m
JetBlue
Mon 4/508:15
LHR
-
SJU
1 stop15h 15m
JetBlue
Deal found 27/2£525
Wed 29/413:25
SJU
-
LHR
1 stop12h 20m
Virgin Atlantic
Mon 4/519:45
LHR
-
SJU
2 stops29h 39m
Virgin Atlantic
Deal found 27/2£527

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 28 February 2026.

Round-trip from

£461

One-way from

£226

Popular in

June

Cheapest in

February

Average price

£433
JetBlue
  • JetBlue
  • 25/3-1/4
  • 2 total stops
  • 43h 39m total
  • Puerto Rico to London
Search Deals
14/4
  • 14/4
  • 2 total stops
  • 20h 55m total
  • Puerto Rico to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£107 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 28 February 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

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 2/5

21:59-20:45

1 stop17h 46m

London Heathrow

Thu 7/5

11:55-00:07

1 stop17h 12m

£536

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 27/4

21:00-20:45

1 stop18h 45m

London Heathrow

Mon 4/5

08:40-22:12

1 stop18h 32m

£562

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 16/3

07:30-09:10

2 stops21h 40m

London Heathrow

Tue 24/3

08:30-23:36

2 stops19h 06m

£582

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 15/4

15:56-11:45

1 stop14h 49m

London Heathrow

Wed 22/4

07:30-21:24

2 stops18h 54m

£591

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 22/4

14:45-12:05

2 stops16h 20m

London Heathrow

Wed 29/4

11:20-23:13

2 stops16h 53m

£608

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 29/4

12:55-10:20

2 stops16h 25m

London Heathrow

Wed 6/5

11:20-23:13

2 stops16h 53m

£609

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 5/8

16:55-10:40

1 stop12h 45m

London Heathrow

Mon 24/8

12:15-23:57

2 stops16h 42m

£610

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 5/8

14:35-12:05

2 stops16h 30m

London Heathrow

Mon 24/8

15:50-13:30

2 stops26h 40m

£614

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 28/3

15:25-07:50

1 stop12h 25m

London Heathrow

Sat 11/4

18:55-12:04

1 stop22h 09m

£615

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 24/4

13:25-06:45

1 stop12h 20m

London Heathrow

Wed 29/4

18:35-13:25

2 stops23h 50m

£619

Flights are sorted by cheapest return flights first.

Deals found on 26/2

Showing 1-10 of 22 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, September is the cheapest month in which you can book a flight from Puerto Rico to London Heathrow Airport (average of £75). Flying from Puerto Rico to London Heathrow Airport in June is currently the most expensive (average of £685). 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.

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 16h 20m. Fly via JetBlue, United Airlines, or Delta 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, September is the cheapest month in which you can book a flight from Puerto Rico to London Heathrow Airport (average of £75). Flying from Puerto Rico to London Heathrow Airport in June is currently the most expensive (average of £685). 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
Milton Keynes
Croydon
Wembley
Luton
Northampton
Gatwick
Slough
Hounslow
Ilford
Hayes
Brentford
Colchester
Watford
Guildford
Kingston upon Thames
Eastbourne
Ipswich
Chelmsford
Swindon
Bedford

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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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