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Cheap flights from London Heathrow Airport to Puerto Rico 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 25/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SJU
16 Jul — 23 Jul1
1 adult

Cheap flight deals from Heathrow to Puerto Rico

Keep the following information in mind while searching for Heathrow to Puerto Rico flight deals. Data was last updated 11 July 2025.

Round-trip from

£483

One-way from

£232

Popular in

July

Cheapest in

September

Average price

£932
JetBlue
  • JetBlue
  • 3/9-17/9
  • 2 total stops
  • 29h 17m total
  • London to Puerto Rico
25/9
  • 25/9
  • 3 total stops
  • 56h 54m total
  • London to Puerto Rico
Highest demand for flights based on searches. 15% potential increase in price (£88 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Average for round-trip flights in July 2025

Find flight deals from Heathrow to Puerto Rico

Cheapest flights from Heathrow to Puerto Rico
Explore the most affordable flight options available from Heathrow to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.

Wed 3/908:15LHR - SJU
1 stop13h 37mJetBlue
Wed 17/912:50SJU - LHR
1 stop15h 40mJetBlue
Deal found 10/7£483
Fri 7/1112:20LHR - SJU
1 stop19h 29mIcelandair
Sat 15/1118:51SJU - LHR
2 stops21h 54mIcelandair
Deal found 10/7£489
Thu 18/912:45LHR - SJU
2 stops27h 49mMultiple Airlines
Wed 24/901:59SJU - LHR
2 stops27h 31mMultiple Airlines
Deal found 9/7£559
Fri 7/1112:25LHR - SJU
2 stops19h 24mTAP AIR PORTUGAL
Sat 15/1116:09SJU - LHR
2 stops22h 46mTAP AIR PORTUGAL
Deal found 10/7£617
Sat 15/1113:25LHR - BQN
2 stops38h 32mAir Canada
Tue 18/1101:09BQN - LHR
2 stops26h 01mAir Canada
Deal found 10/7£808
Fri 31/1016:20LHR - MAZ
2 stops52h 07mUnited Airlines
Tue 4/1114:00MAZ - LHR
2 stops36h 40mUnited Airlines
Deal found 9/7£968

Cheapflights Fare Finder

Customise your flight search to find flights from Heathrow to Puerto Rico 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 11 July 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Puerto Rico that are best for you.

Fly from

Heathrow

Fly to

Puerto Rico

Route

Depart

Return

Price

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 3/9

08:15-16:52

1 stop13h 37m

San Juan Luis Munoz Marin Intl

Wed 17/9

12:50-09:30

1 stop15h 40m

£483

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 7/11

12:20-03:49

1 stop19h 29m

San Juan Luis Munoz Marin Intl

Sat 15/11

18:51-20:45

2 stops21h 54m

£489

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 18/9

12:45-11:34

2 stops27h 49m

San Juan Luis Munoz Marin Intl

Wed 24/9

01:59-10:30

2 stops27h 31m

£559

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 7/11

12:25-03:49

2 stops19h 24m

San Juan Luis Munoz Marin Intl

Sat 15/11

16:09-18:55

2 stops22h 46m

£617

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Sat 15/11

13:25-23:57

2 stops38h 32m

Aguadilla Borinquen

Tue 18/11

01:09-07:10

2 stops26h 01m

£808

LondonMayagüez

LHR - MAZ

LHRMAZ

London Heathrow

Fri 31/10

16:20-16:27

2 stops52h 07m

Mayagüez Eugenio M De Hostos

Tue 4/11

14:00-06:40

2 stops36h 40m

£968

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 25/9

20:50-00:44

3 stops56h 54m

£232

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 29/8

08:25-17:42

1 stop14h 17m

£389

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 28/8

22:05-16:50

1 stop23h 45m

£528

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 23/8

08:25-17:42

1 stop14h 17m

£575

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Showing 1-10 of 15 results
1
2

Best time to book a flight from Heathrow to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Heathrow 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 London Heathrow Airport to Puerto Rico

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

Currently, April is the cheapest month in which you can book a flight from London Heathrow Airport to Puerto Rico (average of £631). Flying from London Heathrow Airport to Puerto Rico in July is currently the most expensive (average of £1,027). 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 LHR to PR?

Find hourly flight availability from Heathrow to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 July 2025.

When flying from London Heathrow Airport to Puerto Rico, 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 Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated 11 July 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Puerto Rico, such as Delta, United Airlines, andJetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
8.0
Very Good

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Puerto Rico. 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 London Heathrow Airport to Puerto Rico one-way?

    The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as £389. However, be on the lookout for offers from Avianca and JetBlue, as they are both options that can get you from London Heathrow Airport to Puerto Rico for a low price.

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Puerto Rico 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 London Heathrow Airport to Puerto Rico?

    Currently, April is the cheapest month in which you can book a flight from London Heathrow Airport to Puerto Rico (average of £631). Flying from London Heathrow Airport to Puerto Rico in July is currently the most expensive (average of £1,027). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Puerto Rico

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

Top 6 airlines flying from Heathrow to Puerto Rico

Discover the top 6 airlines that operate flights from Heathrow to Puerto Rico. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 11 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£355Average£1,114FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£413Average£604FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
FinnairCheapest£425Average£552FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IcelandairCheapest£447Average£566FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
IberiaCheapest£506Average£715FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£532Average£687FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Puerto Rico flexibly with Cheapflights today.

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