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Cheap flights from London Heathrow Airport to Puerto Rico from £350

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SJU
26 Jul — 2 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Puerto Rico

Enter your travel dates to find the best prices.

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 26 June 2026.

Tue 30/620:05
LHR
-
SJU
1 stop20h 55m
Virgin Atlantic
Thu 30/713:10
SJU
-
LHR
1 stop18h 00m
Virgin Atlantic
Deal found 23/6£350
Mon 7/918:35
LHR
-
SJU
1 stop22h 28m
Virgin Atlantic
Tue 22/913:21
SJU
-
LHR
1 stop14h 29m
Virgin Atlantic
Deal found 23/6£516
Fri 28/811:55
LHR
-
SJU
1 stop15h 50m
JetBlue
Thu 3/915:24
SJU
-
LHR
1 stop13h 06m
JetBlue
Deal found 25/6£547
Tue 10/1112:20
LHR
-
SJU
1 stop32h 31m
JetBlue
Tue 17/1111:45
SJU
-
LHR
1 stop29h 00m
JetBlue
Deal found 22/6£559
Tue 15/908:40
LHR
-
SJU
1 stop34h 43m
JetBlue
Wed 23/913:00
SJU
-
LHR
1 stop26h 45m
JetBlue
Deal found 22/6£579
Sat 7/1109:20
LHR
-
SJU
1 stop33h 53m
JetBlue
Sun 15/1115:50
SJU
-
LHR
1 stop13h 40m
JetBlue
Deal found 23/6£585
Sat 14/1109:20
LHR
-
SJU
1 stop19h 05m
JetBlue
Tue 17/1120:00
SJU
-
LHR
1 stop20h 45m
JetBlue
Deal found 24/6£587
Wed 11/1109:20
LHR
-
SJU
1 stop19h 05m
JetBlue
Tue 24/1105:30
SJU
-
LHR
1 stop12h 10m
JetBlue
Deal found 26/6£591
Sat 11/708:15
LHR
-
SJU
1 stop17h 03m
JetBlue
Mon 27/713:10
SJU
-
LHR
1 stop15h 20m
JetBlue
Deal found 24/6£604
Thu 12/1109:30
LHR
-
BQN
2 stops18h 27m
United Airlines
Sun 15/1101:09
BQN
-
LHR
1 stop27h 16m
United Airlines
Deal found 24/6£1,018
Fri 25/1208:05
LHR
-
BQN
1 stop16h 50m
JetBlue
Sun 10/115:20
BQN
-
LHR
2 stops25h 32m
JetBlue
Deal found 23/6£1,125
Wed 30/915:20
LHR
-
MAZ
2 stops29h 51m
United Airlines
Sun 4/1013:19
MAZ
-
LHR
2 stops27h 16m
United Airlines
Deal found 24/6£1,310

Find 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 26 June 2026.

Round-trip from

£516

One-way from

£378

Popular in

December

Cheapest in

February

Average price

£712
Virgin Atlantic
  • Virgin Atlantic
  • 7/9-22/9
  • 2 total stops
  • 36h 57m total
  • London to Puerto Rico
Search Deals
4/9
  • 4/9
  • 3 total stops
  • 40h 50m total
  • London to Puerto Rico
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£31 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 26 June 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 1/12

09:20-23:55

1 stop18h 35m

San Juan Luis Munoz Marin Intl

Sat 12/12

07:10-06:55

1 stop19h 45m

£634

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 18/9

08:40-23:58

1 stop20h 18m

San Juan Luis Munoz Marin Intl

Tue 22/9

13:00-09:30

1 stop15h 30m

£635

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 15/9

18:45-13:08

2 stops47h 23m

San Juan Luis Munoz Marin Intl

Wed 23/9

10:30-22:00

2 stops30h 30m

£710

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 5/9

06:00-10:00

2 stops33h 00m

San Juan Luis Munoz Marin Intl

Tue 15/9

10:30-18:50

2 stops27h 20m

£717

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 18/9

06:00-23:58

2 stops22h 58m

San Juan Luis Munoz Marin Intl

Tue 22/9

10:30-17:45

2 stops26h 15m

£747

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 30/11

18:30-03:48

2 stops37h 18m

San Juan Luis Munoz Marin Intl

Thu 17/12

10:38-22:40

2 stops32h 02m

£755

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 28/8

08:00-08:47

2 stops29h 47m

San Juan Luis Munoz Marin Intl

Mon 31/8

14:30-22:00

2 stops26h 30m

£764

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 21/8

06:00-09:58

2 stops32h 58m

San Juan Luis Munoz Marin Intl

Sun 23/8

08:03-22:00

2 stops32h 57m

£789

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 7/11

19:55-00:25

2 stops32h 30m

San Juan Luis Munoz Marin Intl

Sun 15/11

11:45-21:35

2 stops29h 50m

£794
Fastest return journey

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 18/7

08:15-20:18

1 stop17h 03m

San Juan Luis Munoz Marin Intl

Sat 25/7

13:10-09:30

1 stop15h 20m

£804

Flights are sorted by cheapest return flights first.

Deals found on 25/6

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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, October is the cheapest month in which you can book a flight from London Heathrow Airport to Puerto Rico (average of £350). Flying from London Heathrow Airport to Puerto Rico in June is currently the most expensive (average of £571). 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.

How far ahead should I book a flight from London Heathrow Airport to Puerto Rico?

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Puerto Rico, you should look to book at least 33 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 26 June 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Puerto Rico, such as Virgin Atlantic,JetBlue, andIcelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
690 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Comfort

7.3

Food

6.9

Overall

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Virgin Atlantic
7.5
Good
690 reviews
Virgin Atlantic
7.5
Good
690 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Comfort

7.3

Food

6.9

Overall

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
JetBlue
7.1
Good
3,014 reviews
Virgin Atlantic
7.5
Good
690 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Comfort

7.3

Food

6.9

Overall

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Icelandair
7.0
Good
690 reviews
Virgin Atlantic
7.5
Good
690 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Comfort

7.3

Food

6.9

Overall

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Iberia
7.0
Good
3,250 reviews
Virgin Atlantic
7.5
Good
690 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Comfort

7.3

Food

6.9

Overall

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
British Airways
6.7
Okay
8,072 reviews
Virgin Atlantic
7.5
Good
690 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Comfort

7.3

Food

6.9

Overall

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

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.

  • How long is the flight from London Heathrow Airport to Puerto Rico?

    JetBlue, TAP AIR PORTUGAL, and United Airlines can get you from London Heathrow Airport to Puerto Rico in just under 18h 27m. Your travel time can differ by up to 28h 56m. The distance between London Heathrow Airport and Puerto Rico is about 4224 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Most travelers choose London Heathrow - San Juan Luis Munoz Marin Intl, London Heathrow - Mayagüez Eugenio M De Hostos or London Heathrow - Aguadilla Borinquen when deciding on the best route 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, October is the cheapest month in which you can book a flight from London Heathrow Airport to Puerto Rico (average of £350). Flying from London Heathrow Airport to Puerto Rico in June is currently the most expensive (average of £571). 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.
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Heathrow to Kingstown flights
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Heathrow to Willemstad flights
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Gatwick to Willemstad flights
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Gatwick to St. George's flights
London City to Castries flights
Heathrow to Castries flights
Stansted to Santo Domingo flights
Heathrow to Luis Munoz Marin Intl flights
Gatwick to Havana flights
Heathrow to George Town flights
Heathrow to Roseau flights
Gatwick to Luis Munoz Marin Intl flights
Gatwick to George Town flights
London City to Santo Domingo flights
London City to Luis Munoz Marin Intl flights
Gatwick to Kingstown flights
Heathrow to Oranjestad flights

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 26 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£338Average£1,162FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£443Average£637FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
AviancaCheapest£502Average£605FlexibilityNo cancel feeOn-time71%
Search Avianca flights
IcelandairCheapest£512Average£694FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
IberiaCheapest£787Average£1,088FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£851Average£1,027FlexibilityNo cancel feeOn-time70%
Search British Airways 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 Heathrow to Puerto Rico?

Cheapflights makes it easy to find Heathrow to Puerto Rico flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Puerto Rico.

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.

Can Cheapflights notify me if prices for flights from Heathrow to Puerto Rico become cheaper?

Of course! You can now track prices for flights from Heathrow to Puerto Rico and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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