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Cheap flights from Puerto Rico to London Heathrow Airport from £202

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — LHR
27 Jan — 3 Feb1
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 December 2025.

Wed 31/1210:38SJU - LHR
1 stop18h 52mJetBlue
Sat 10/108:05LHR - SJU
1 stop19h 45mJetBlue
Deal found 26/12£607
Tue 30/1202:05SJU - LHR
1 stop15h 15mUnited Airlines
Sat 10/108:00LHR - SJU
2 stops18h 22mUnited Airlines
Deal found 26/12£700
Wed 31/1207:30SJU - LHR
2 stops21h 15mDelta
Sat 10/116:35LHR - SJU
2 stops25h 35mDelta
Deal found 26/12£704
Tue 30/1212:40SJU - LHR
1 stop14h 15mJetBlue
Wed 7/107:25LHR - SJU
1 stop14h 29mJetBlue
Deal found 26/12£753
Fri 26/1212:40SJU - LHR
1 stop14h 15mJetBlue
Fri 9/108:05LHR - SJU
1 stop20h 53mJetBlue
Deal found 25/12£795
Tue 30/1212:40SJU - LHR
1 stop14h 15mJetBlue
Tue 6/107:25LHR - SJU
1 stop14h 29mJetBlue
Deal found 27/12£883
Tue 30/1211:45SJU - LHR
2 stops24h 55mMultiple Airlines
Tue 6/109:00LHR - SJU
2 stops22h 13mMultiple Airlines
Deal found 27/12£919
Mon 29/1202:05SJU - LHR
1 stop15h 15mUnited Airlines
Wed 7/110:25LHR - SJU
2 stops18h 11mUnited Airlines
Deal found 26/12£992
Tue 30/1207:30SJU - LHR
2 stops19h 35mDelta
Wed 7/120:00LHR - SJU
2 stops25h 17mDelta
Deal found 26/12£996
Tue 30/1212:40SJU - LHR
1 stop14h 15mJetBlue
Thu 1/109:20LHR - SJU
1 stop19h 45mJetBlue
Deal found 26/12£997
Tue 30/1205:01PSE - LHR
1 stop12h 39mJetBlue
Thu 1/112:20LHR - PSE
1 stop18h 46mJetBlue
Deal found 26/12£1,336

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 December 2025.

Round-trip from

£392

One-way from

£202

Popular in

June

Cheapest in

February

Average price

£626
Iberia
  • Iberia
  • 13/2-21/2
  • 2 total stops
  • 28h 14m total
  • Puerto Rico to London
Search Deals
9/2
  • 9/2
  • 1 total stop
  • 16h 58m total
  • Puerto Rico to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£100 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 December 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

Wed 11/2

14:15-08:25

1 stop14h 10m

London Heathrow

Wed 18/2

12:50-00:36

1 stop15h 46m

£410

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 10/2

02:05-06:30

2 stops24h 25m

London Heathrow

Wed 18/2

06:50-22:22

2 stops19h 32m

£425

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 23/1

13:40-06:55

1 stop13h 15m

London Heathrow

Tue 27/1

07:25-19:23

1 stop15h 58m

£435

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 11/2

06:15-06:55

1 stop20h 40m

London Heathrow

Wed 18/2

07:25-22:32

1 stop19h 07m

£435

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 18/2

05:15-21:40

1 stop12h 25m

London Heathrow

Thu 26/2

12:20-03:51

1 stop19h 31m

£435

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 22/1

02:05-20:35

1 stop14h 30m

London Heathrow

Tue 27/1

08:30-22:22

2 stops17h 52m

£435

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 30/3

07:40-08:30

1 stop19h 50m

London Heathrow

Wed 8/4

06:55-21:24

2 stops19h 29m

£439

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 14/2

14:10-09:10

1 stop15h 00m

London Heathrow

Sat 21/2

09:10-22:22

2 stops17h 12m

£441

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 13/2

17:50-10:50

1 stop13h 00m

London Heathrow

Sat 21/2

09:10-22:22

2 stops17h 12m

£441

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 7/3

15:40-11:20

1 stop15h 40m

London Heathrow

Sat 21/3

13:25-12:55

1 stop27h 30m

£445

Flights are sorted by cheapest return flights first.

Deals found on 27/12

Showing 1-10 of 15 results
1
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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 £727). 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 13h 15m. Fly via Lufthansa or JetBlue 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 £727). 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
Slough
Hounslow
Northampton
Luton
Gatwick
Wembley
Ilford
Brentford
Colchester
Hayes
Watford
Crawley
Swindon
Bedford
Romford
Chichester
Eastbourne
Ipswich

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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Castries to Heathrow flights
Punta Cana to Gatwick flights
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Port of Spain to Stansted flights
St. John's to Gatwick flights
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Punta Cana to Heathrow flights
Road Town to Gatwick flights
Nassau to Stansted flights
Castries to London City flights
Roseau to Heathrow flights
Willemstad to Gatwick flights
Basseterre to Gatwick flights
Providenciales to Heathrow flights
Montego Bay to Luton flights
Montego Bay to London City flights

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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