Find flights
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Puerto Rico from £374

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SJU
8 Aug — 15 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 9 July 2026.

Wed 9/911:55
LHR
-
SJU
1 stop33h 01m
JetBlue
Sun 20/906:00
SJU
-
LHR
1 stop33h 45m
JetBlue
Deal found 7/7£553
Wed 30/908:15
LHR
-
SJU
1 stop16h 17m
JetBlue
Sun 4/1010:30
SJU
-
LHR
1 stop29h 15m
JetBlue
Deal found 8/7£557
Sat 31/1009:20
LHR
-
SJU
1 stop33h 53m
JetBlue
Tue 10/1120:00
SJU
-
LHR
1 stop20h 45m
JetBlue
Deal found 5/7£580
Tue 22/908:15
LHR
-
SJU
1 stop34h 19m
JetBlue
Sat 26/906:00
SJU
-
LHR
1 stop33h 45m
JetBlue
Deal found 7/7£580
Fri 18/911:55
LHR
-
SJU
1 stop33h 01m
JetBlue
Tue 22/906:00
SJU
-
LHR
1 stop33h 45m
JetBlue
Deal found 7/7£583
Wed 11/1109:20
LHR
-
SJU
1 stop19h 05m
JetBlue
Tue 24/1105:30
SJU
-
LHR
1 stop12h 10m
JetBlue
Deal found 6/7£589
Wed 4/1107:25
LHR
-
SJU
1 stop22h 18m
JetBlue
Mon 16/1107:00
SJU
-
LHR
1 stop19h 55m
JetBlue
Deal found 8/7£591
Wed 4/1109:20
LHR
-
SJU
1 stop19h 05m
JetBlue
Wed 11/1107:00
SJU
-
LHR
1 stop19h 55m
JetBlue
Deal found 8/7£604
Wed 4/1109:20
LHR
-
SJU
1 stop19h 05m
JetBlue
Tue 17/1116:00
SJU
-
LHR
1 stop13h 30m
JetBlue
Deal found 8/7£605
Thu 1/1008:40
LHR
-
SJU
1 stop20h 18m
JetBlue
Wed 14/1010:30
SJU
-
LHR
1 stop29h 15m
JetBlue
Deal found 6/7£607
Wed 4/1109:20
LHR
-
SJU
1 stop19h 05m
Multiple Airlines
Sun 15/1110:29
SJU
-
LHR
1 stop16h 21m
Multiple Airlines
Deal found 8/7£618
Mon 5/1008:15
LHR
-
BQN
1 stop19h 24m
JetBlue
Mon 12/1014:20
BQN
-
LHR
2 stops25h 25m
JetBlue
Deal found 5/7£707

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 9 July 2026.

Round-trip from

£553

One-way from

£374

Popular in

December

Cheapest in

February

Average price

£903
JetBlue
  • JetBlue
  • 9/9-20/9
  • 2 total stops
  • 66h 46m total
  • London to Puerto Rico
Search Deals
JetBlue
  • JetBlue
  • 1/9
  • 1 total stop
  • 18h 25m total
  • London to Puerto Rico
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£24 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 9 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

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

£634

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 21/8

08:15-22:45

1 stop19h 30m

San Juan Luis Munoz Marin Intl

Fri 28/8

22:45-20:45

1 stop17h 00m

£698

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Mon 5/10

08:15-22:39

1 stop19h 24m

Aguadilla Borinquen

Mon 12/10

14:20-20:45

2 stops25h 25m

£707

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

15:00-17:45

2 stops21h 45m

£750

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 9/9

18:45-23:58

2 stops34h 13m

San Juan Luis Munoz Marin Intl

Sun 20/9

15:00-17:45

2 stops21h 45m

£765

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 22/7

08:40-22:04

1 stop18h 24m

San Juan Luis Munoz Marin Intl

Wed 29/7

07:25-09:30

1 stop21h 05m

£787

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Sat 28/11

08:05-02:34

1 stop22h 29m

Aguadilla Borinquen

Sun 6/12

07:01-09:30

1 stop22h 29m

£800

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Mon 3/8

11:55-18:37

1 stop35h 42m

Aguadilla Borinquen

Wed 19/8

20:05-20:45

1 stop19h 40m

£825

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 5/8

08:40-22:04

1 stop18h 24m

San Juan Luis Munoz Marin Intl

Thu 20/8

22:40-20:45

1 stop17h 05m

£843

Flights are sorted by cheapest return flights first.

Deals found on 4/7

Showing 1-10 of 29 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 £346). Flying from London Heathrow Airport to Puerto Rico in June is currently the most expensive (average of £563). 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 9 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
693 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Overall

7.5

Crew

8.1

Food

6.9

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
693 reviews
Virgin Atlantic
7.5
Good
693 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Overall

7.5

Crew

8.1

Food

6.9

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
3,011 reviews
Virgin Atlantic
7.5
Good
693 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Overall

7.5

Crew

8.1

Food

6.9

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
702 reviews
Virgin Atlantic
7.5
Good
693 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Overall

7.5

Crew

8.1

Food

6.9

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
3,252 reviews
Virgin Atlantic
7.5
Good
693 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Overall

7.5

Crew

8.1

Food

6.9

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
8,105 reviews
Virgin Atlantic
7.5
Good
693 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Overall

7.5

Crew

8.1

Food

6.9

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 20h 18m. Your travel time can differ by up to 12h 42m. 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, October is the cheapest month in which you can book a flight from London Heathrow Airport to Puerto Rico (average of £346). Flying from London Heathrow Airport to Puerto Rico in June is currently the most expensive (average of £563). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Bridgetown flights
Heathrow to Montego Bay flights
Gatwick to Bridgetown flights
Heathrow to Kingston flights
Stansted to Montego Bay flights
Gatwick to Punta Cana flights
Stansted to Bridgetown flights
Gatwick to Kingston flights
Heathrow to Punta Cana flights
London City to Montego Bay flights
Heathrow to Nassau flights
London City to Kingston flights
London City to Bridgetown flights
Stansted to Punta Cana flights
Stansted to Kingston flights
Heathrow to Castries flights
Luton to Montego Bay flights
Gatwick to Montego Bay flights
Gatwick to Castries flights
Heathrow to St. George's flights
Heathrow to Port of Spain flights
Gatwick to St. John's flights
Luton to Punta Cana flights
Heathrow to St. John's flights
Heathrow to Santo Domingo flights
London City to Punta Cana flights
Heathrow to Castries flights
Gatwick to Santo Domingo flights
Gatwick to Nassau flights
Heathrow to Luis Munoz Marin Intl flights
Heathrow to Roseau flights
Gatwick to Luis Munoz Marin Intl flights
Heathrow to Kingstown flights
Gatwick to Port of Spain flights
Stansted to Santo Domingo flights
London City to Castries flights
Gatwick to Havana flights
Stansted to Nassau flights
Stansted to Luis Munoz Marin Intl flights
Stansted to Port of Spain flights
Gatwick to Castries flights
Heathrow to Willemstad flights
Gatwick to St. George's flights
Gatwick to Willemstad flights
London City to Santo Domingo flights
London City to Luis Munoz Marin Intl flights
Heathrow to Basseterre flights
Gatwick to Roseau flights
Gatwick to Basseterre 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 9 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£334Average£1,147FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£435Average£632FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
AviancaCheapest£495Average£597FlexibilityNo cancel feeOn-time71%
Search Avianca flights
IcelandairCheapest£505Average£680FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
IberiaCheapest£776Average£1,082FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£839Average£1,014FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.