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Cheap flights from London Heathrow Airport to Puerto Rico from £379

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 4/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SJU
23 Aug — 30 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 24 July 2026.

Fri 11/908:15
LHR
-
SJU
1 stop16h 17m
JetBlue
Sun 13/906:00
SJU
-
LHR
1 stop22h 30m
JetBlue
Deal found 22/7£575
Tue 3/1109:20
LHR
-
SJU
1 stop19h 05m
JetBlue
Wed 25/1102:05
SJU
-
LHR
1 stop15h 35m
JetBlue
Deal found 21/7£589
Wed 11/1107:25
LHR
-
SJU
1 stop17h 20m
JetBlue
Mon 23/1102:05
SJU
-
LHR
1 stop15h 35m
JetBlue
Deal found 24/7£592
Thu 3/908:15
LHR
-
SJU
1 stop29h 32m
JetBlue
Thu 10/913:00
SJU
-
LHR
1 stop15h 30m
JetBlue
Deal found 22/7£600
Mon 7/908:15
LHR
-
SJU
1 stop20h 58m
JetBlue
Mon 14/906:00
SJU
-
LHR
1 stop19h 30m
JetBlue
Deal found 23/7£604
Tue 3/1109:20
LHR
-
SJU
1 stop19h 05m
JetBlue
Tue 1/1207:10
SJU
-
LHR
1 stop19h 45m
JetBlue
Deal found 21/7£609
Tue 1/908:15
LHR
-
BQN
1 stop15h 13m
JetBlue
Fri 4/920:42
BQN
-
LHR
1 stop19h 03m
JetBlue
Deal found 24/7£621
Tue 1/908:50
LHR
-
BQN
2 stops27h 59m
Multiple Airlines
Fri 4/920:42
BQN
-
LHR
2 stops30h 23m
Multiple Airlines
Deal found 24/7£691
Mon 5/1011:55
LHR
-
BQN
1 stop15h 44m
JetBlue
Mon 12/1005:01
BQN
-
LHR
2 stops34h 44m
JetBlue
Deal found 20/7£695
Fri 28/808:15
LHR
-
BQN
1 stop16h 48m
JetBlue
Mon 31/820:42
BQN
-
LHR
1 stop19h 03m
JetBlue
Deal found 24/7£712
Fri 28/807:40
LHR
-
BQN
2 stops17h 23m
Multiple Airlines
Mon 31/820:42
BQN
-
LHR
2 stops31h 23m
Multiple Airlines
Deal found 24/7£742
Sat 5/918:00
LHR
-
MAZ
2 stops27h 11m
United Airlines
Sat 12/913:19
MAZ
-
LHR
2 stops17h 36m
United Airlines
Deal found 22/7£1,221

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 24 July 2026.

Round-trip from

£575

One-way from

£379

Popular in

December

Cheapest in

February

Average price

£904
JetBlue
  • JetBlue
  • 11/9-13/9
  • 2 total stops
  • 38h 47m total
  • London to Puerto Rico
Search Deals
JetBlue
  • JetBlue
  • 4/11
  • 1 total stop
  • 19h 05m total
  • London to Puerto Rico
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£27 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 24 July 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
Fastest return journey

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 7/1

12:20-23:59

1 stop15h 39m

San Juan Luis Munoz Marin Intl

Thu 21/1

14:00-06:55

1 stop12h 55m

£614

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 5/9

08:15-20:38

1 stop17h 23m

San Juan Luis Munoz Marin Intl

Tue 15/9

10:30-09:30

1 stop18h 00m

£616

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Tue 1/9

08:15-18:28

1 stop15h 13m

Aguadilla Borinquen

Fri 4/9

20:42-20:45

1 stop19h 03m

£621

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Tue 1/9

08:50-07:49

2 stops27h 59m

Aguadilla Borinquen

Fri 4/9

20:42-08:05

2 stops30h 23m

£691

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Mon 5/10

08:15-22:39

1 stop19h 24m

Aguadilla Borinquen

Mon 12/10

06:15-09:30

1 stop22h 15m

£705

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 7/1

16:30-23:50

2 stops35h 20m

San Juan Luis Munoz Marin Intl

Thu 21/1

06:01-11:25

2 stops25h 24m

£730

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 12/8

08:15-00:13

1 stop20h 58m

San Juan Luis Munoz Marin Intl

Sat 29/8

21:55-20:45

1 stop17h 50m

£858

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 31/12

19:55-00:07

2 stops32h 12m

San Juan Luis Munoz Marin Intl

Tue 12/1

11:06-21:35

2 stops30h 29m

£883

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 15/8

08:15-20:38

1 stop17h 23m

San Juan Luis Munoz Marin Intl

Fri 28/8

20:10-20:45

1 stop19h 35m

£900

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 3/8

11:55-00:13

1 stop17h 18m

San Juan Luis Munoz Marin Intl

Sun 16/8

06:00-06:30

1 stop19h 30m

£922

Flights are sorted by cheapest return flights first.

Deals found on 24/7

Showing 1-10 of 27 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Puerto Rico (average of £569). Flying from London Heathrow Airport to Puerto Rico in December is currently the most expensive (average of £1,004). 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 24 July 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
695 reviews
Check prices

Entertainment

7.5

Food

6.9

Overall

7.5

Crew

8.1

Boarding

7.7

Comfort

7.3

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
695 reviews
Virgin Atlantic
7.5
Good
695 reviews
Check prices

Entertainment

7.5

Food

6.9

Overall

7.5

Crew

8.1

Boarding

7.7

Comfort

7.3

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
3,025 reviews
Virgin Atlantic
7.5
Good
695 reviews
Check prices

Entertainment

7.5

Food

6.9

Overall

7.5

Crew

8.1

Boarding

7.7

Comfort

7.3

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
716 reviews
Virgin Atlantic
7.5
Good
695 reviews
Check prices

Entertainment

7.5

Food

6.9

Overall

7.5

Crew

8.1

Boarding

7.7

Comfort

7.3

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
3,256 reviews
Virgin Atlantic
7.5
Good
695 reviews
Check prices

Entertainment

7.5

Food

6.9

Overall

7.5

Crew

8.1

Boarding

7.7

Comfort

7.3

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
8,132 reviews
Virgin Atlantic
7.5
Good
695 reviews
Check prices

Entertainment

7.5

Food

6.9

Overall

7.5

Crew

8.1

Boarding

7.7

Comfort

7.3

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 15h 39m. Your travel time can differ by up to 19h 41m. The distance between London Heathrow Airport and Puerto Rico is about 4179 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Puerto Rico (average of £569). Flying from London Heathrow Airport to Puerto Rico in December is currently the most expensive (average of £1,004). 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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Gatwick to Castries flights
Heathrow to St. John's flights
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Heathrow to Kingstown flights
Stansted to Port of Spain flights
London City to Punta Cana flights
Gatwick to Port of Spain flights
London City to Castries flights
Heathrow to Santo Domingo flights
Heathrow to Willemstad flights
Heathrow to Castries flights
Gatwick to Willemstad flights
Gatwick to Nassau flights
Gatwick to Basseterre flights
Gatwick to Havana flights
Gatwick to Santo Domingo flights
Heathrow to Luis Munoz Marin Intl flights
Gatwick to Luis Munoz Marin Intl flights
Heathrow to Basseterre flights
Gatwick to St. George's flights
Heathrow to George Town flights
Stansted to Santo Domingo flights
Gatwick to Castries flights
Heathrow to Roseau flights
Stansted to Nassau flights
London City to Luis Munoz Marin Intl flights
Stansted to Luis Munoz Marin Intl flights

Top 5 airlines flying from Heathrow to Puerto Rico

Discover the top 5 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 24 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£334Average£1,148FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£435Average£634FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IcelandairCheapest£496Average£754FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
IberiaCheapest£777Average£1,174FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£849Average£1,026FlexibilityNo 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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