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Cheap flights from Puerto Rico to London Heathrow Airport from £200

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 18/10. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — LHR
30 Aug — 6 Sep1
1 adult

Cheap 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 25 August 2025.

Round-trip from

£391

One-way from

£200

Popular in

June

Cheapest in

February

Average price

£720
Virgin Atlantic
  • Virgin Atlantic
  • 21/9-7/10
  • 2 total stops
  • 28h 56m total
  • Puerto Rico to London
Search Deals
18/10
  • 18/10
  • 2 total stops
  • 34h 38m total
  • Puerto Rico to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£79 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Puerto Rico to Heathrow

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 25 August 2025.

Sun 21/918:00SJU - LHR
1 stop12h 25mVirgin Atlantic
Tue 7/1012:25LHR - SJU
1 stop16h 31mVirgin Atlantic
Deal found 23/8£391
Sun 9/1113:57SJU - LHR
1 stop15h 03mKLM
Thu 20/1108:55LHR - SJU
1 stop18h 22mKLM
Deal found 25/8£420
Tue 9/913:18SJU - LHR
1 stop13h 47mDelta
Tue 16/915:25LHR - SJU
2 stops25h 48mDelta
Deal found 23/8£425
Wed 24/913:32SJU - LHR
1 stop14h 18mKLM
Wed 1/1010:55LHR - SJU
1 stop17h 49mKLM
Deal found 25/8£427
Wed 5/1114:06SJU - LHR
1 stop16h 09mKLM
Tue 11/1108:55LHR - SJU
1 stop18h 22mKLM
Deal found 22/8£428
Wed 24/907:00SJU - LHR
1 stop21h 15mDelta
Wed 1/1009:20LHR - SJU
1 stop17h 40mDelta
Deal found 25/8£431
Wed 29/1007:15SJU - LHR
2 stops19h 50mDelta
Thu 6/1115:50LHR - SJU
2 stops26h 22mDelta
Deal found 25/8£434
Thu 9/1007:15SJU - LHR
1 stop18h 30mVirgin Atlantic
Thu 16/1011:20LHR - SJU
1 stop15h 39mVirgin Atlantic
Deal found 25/8£442
Tue 7/1013:06SJU - LHR
1 stop14h 44mKLM
Sun 19/1010:55LHR - SJU
1 stop18h 01mKLM
Deal found 25/8£457
Thu 18/918:00SJU - LHR
1 stop35h 15mVirgin Atlantic
Wed 24/911:20LHR - SJU
1 stop15h 40mVirgin Atlantic
Deal found 25/8£460

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 25 August 2025.
Use the filters below to find and compare flights from Puerto Rico to London Heathrow Airport that are best for you.

Fly from

Puerto Rico

Fly to

Heathrow

Route

Depart

Return

Price

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 21/9

18:00-11:25

1 stop12h 25m

London Heathrow

Tue 7/10

12:25-23:56

1 stop16h 31m

£391

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 15/10

17:43-13:30

1 stop14h 47m

London Heathrow

Wed 22/10

09:20-21:59

1 stop17h 39m

£420

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 9/9

17:46-13:30

1 stop14h 44m

London Heathrow

Tue 16/9

09:20-22:00

1 stop17h 40m

£420

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 9/11

13:57-07:50

1 stop13h 53m

London Heathrow

Thu 20/11

15:50-12:46

1 stop24h 56m

£420

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 7/9

13:34-08:50

1 stop14h 16m

London Heathrow

Tue 16/9

09:20-22:00

1 stop17h 40m

£420

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 1/10

13:25-06:45

1 stop12h 20m

London Heathrow

Fri 10/10

09:20-21:59

1 stop17h 39m

£420

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 14/9

17:41-13:30

1 stop14h 49m

London Heathrow

Tue 30/9

10:55-23:47

1 stop17h 52m

£420

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 9/9

13:18-08:05

1 stop13h 47m

London Heathrow

Tue 16/9

15:25-12:13

2 stops25h 48m

£425

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 10/9

13:18-06:45

1 stop12h 27m

London Heathrow

Wed 17/9

06:30-23:44

2 stops22h 14m

£426

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 18/10

06:22-22:00

2 stops34h 38m

£200

Flights are sorted by cheapest return flights first.

Deals found on 25/8

Showing 1-10 of 16 results
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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, January is the cheapest month in which you can book a flight from Puerto Rico to London Heathrow Airport (average of £112). Flying from Puerto Rico to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

What is the cheapest time of day to fly from PR to LHR?

Find hourly flight availability from Puerto Rico to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 August 2025.

When flying from Puerto Rico to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 25m. Fly via Virgin Atlantic or KLM 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, January is the cheapest month in which you can book a flight from Puerto Rico to London Heathrow Airport (average of £112). Flying from Puerto Rico to London Heathrow Airport in August is currently the most expensive (average of £164). 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
Hounslow
Gatwick
Slough
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Folkestone
Ipswich
Chichester
Winchester
Eastbourne
Swindon
Dartford

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Puerto Rico to Heathrow

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

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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