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Cheap flights from Puerto Rico to London Heathrow Airport from £232

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 25/7. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — LHR
8 Jul — 15 Jul1
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 3 July 2025.

Round-trip from

£489

One-way from

£232

Popular in

June

Cheapest in

September

Average price

£721
British Airways
  • British Airways
  • 24/9-1/10
  • 2 total stops
  • 30h 55m total
  • Puerto Rico to London
Search Deals
25/7
  • 25/7
  • 2 total stops
  • 37h 05m total
  • Puerto Rico to London
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£82 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 3 July 2025.

Mon 25/806:00SJU - LHR
1 stop22h 25mIberia
Mon 8/920:00LHR - SJU
1 stop27h 30mIberia
Deal found 3/7£404
Tue 2/913:34SJU - LHR
1 stop16h 26mAir France
Fri 12/910:55LHR - SJU
1 stop17h 52mAir France
Deal found 2/7£424
Mon 25/813:34SJU - LHR
1 stop14h 41mDelta
Mon 8/906:30LHR - SJU
2 stops22h 21mDelta
Deal found 3/7£460
Tue 2/917:46SJU - LHR
1 stop14h 44mKLM
Tue 9/909:20LHR - SJU
1 stop17h 47mKLM
Deal found 3/7£487
Wed 24/915:55SJU - LHR
1 stop12h 30mBritish Airways
Wed 1/1006:15LHR - SJU
1 stop17h 15mBritish Airways
Deal found 2/7£489
Wed 29/1014:46SJU - LHR
1 stop15h 29mUnited Airlines
Thu 6/1109:30LHR - SJU
2 stops31h 47mUnited Airlines
Deal found 2/7£503
Wed 29/1004:25SJU - LHR
1 stop12h 20mJetBlue
Thu 6/1112:20LHR - SJU
1 stop19h 29mJetBlue
Deal found 2/7£505
Wed 10/913:36SJU - LHR
1 stop15h 59mAmerican Airlines
Thu 18/907:45LHR - SJU
2 stops15h 50mAmerican Airlines
Deal found 2/7£510
Mon 27/1001:05SJU - LHR
2 stops25h 25mAir Canada
Thu 13/1113:25LHR - SJU
2 stops29h 15mAir Canada
Deal found 2/7£510
Wed 8/1013:30SJU - LHR
2 stops18h 20mLufthansa
Thu 16/1008:30LHR - SJU
2 stops20h 27mLufthansa
Deal found 3/7£521
Tue 15/701:59PSE - LHR
1 stop13h 46mJetBlue
Sat 19/711:55LHR - PSE
1 stop17h 48mJetBlue
Deal found 2/7£621

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 3 July 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 24/9

15:55-10:35

1 stop13h 40m

London Heathrow

Wed 1/10

06:15-18:30

1 stop17h 15m

£489

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 25/8

12:00-09:25

1 stop16h 25m

London Heathrow

Mon 8/9

20:00-15:05

1 stop24h 05m

£494

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 21/10

01:05-20:40

1 stop14h 35m

London Heathrow

Thu 30/10

09:30-23:36

2 stops18h 06m

£503

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 29/10

04:25-20:45

1 stop12h 20m

London Heathrow

Thu 6/11

12:20-03:49

1 stop19h 29m

£505

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 10/9

13:36-10:35

1 stop15h 59m

London Heathrow

Thu 18/9

07:45-18:35

2 stops15h 50m

£510

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 27/10

01:05-06:30

2 stops25h 25m

London Heathrow

Thu 13/11

13:25-14:40

2 stops29h 15m

£510

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 13/10

13:30-12:50

2 stops18h 20m

London Heathrow

Mon 20/10

07:30-23:57

2 stops21h 27m

£544

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 2/9

13:34-08:50

1 stop14h 16m

London Heathrow

Tue 9/9

09:20-22:07

1 stop17h 47m

£548

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 29/10

14:28-10:15

2 stops15h 47m

London Heathrow

Fri 7/11

12:20-23:50

1 stop15h 30m

£556

PonceLondon

PSE - LHR

PSELHR

Ponce Mercedita

Tue 15/7

01:59-20:45

1 stop13h 46m

London Heathrow

Sat 19/7

11:55-00:43

1 stop17h 48m

£621

Flights are sorted by cheapest return flights first.

Deals found on 30/6

Showing 1-10 of 19 results
1
2

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 3 July 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.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 3 July 2025.
Get a feel of what it's like to fly with Delta, KLM, andUnited Airlines from Puerto Rico to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,982 reviews
Check prices

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,982 reviews
Delta
8.0
Very Good
7,982 reviews
Check prices

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,366 reviews
Delta
8.0
Very Good
7,982 reviews
Check prices

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very Good
7,982 reviews
Check prices

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
JetBlue
7.3
Good
2,918 reviews
Delta
8.0
Very Good
7,982 reviews
Check prices

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
7,982 reviews
Check prices

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines to fly from Puerto Rico to London Heathrow Airport one-way?

    The cheapest airline one-way is JetBlue, with whom users have recently found tickets for as low as £257. However, be on the lookout for offers from KLM and Air Canada, as they are both options that can get you from Puerto Rico to London Heathrow Airport for a low price.

  • 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 Puerto Rico?

Book flights to Puerto Rico if you plan to visit one of these locations
Hounslow
Croydon
Milton Keynes
Deal
Northampton
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Hayes
Folkestone
Southend-on-Sea
Watford
Ipswich
Winchester
Swindon
Maidstone

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.
Bridgetown to Heathrow flights
Port of Spain to Heathrow flights
Luis Munoz Marin Intl to Heathrow flights
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Kingston to Gatwick flights
George Town to Heathrow flights
St. George's to Heathrow flights
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Santo Domingo to Gatwick flights
Nassau to Gatwick flights
St. John's to Gatwick flights
Punta Cana to Heathrow flights
St. George's to Gatwick flights
George Town to Gatwick flights
Montego Bay to Luton flights
Castries to Heathrow flights
St. John's to Heathrow flights
Saint Thomas Island to Heathrow flights
Bridgetown to London City flights
Port of Spain to Stansted flights
Basseterre to Gatwick flights
Providenciales to Heathrow flights
Scarborough to Gatwick flights
Montego Bay to London City flights
Havana to Heathrow flights
Kingston to Stansted flights
Scarborough to Heathrow flights
Road Town to Gatwick flights
Simpson Bay to Gatwick flights
Nassau to Stansted flights

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

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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.

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