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Cheap flights from London Heathrow Airport to Puerto Rico from £355

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 14/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SJU
18 Jun — 25 Jun1
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 13 June 2025.

Round-trip from

£470

One-way from

£355

Popular in

July

Cheapest in

September

Average price

£628
23/9-30/9
  • 23/9-30/9
  • 4 total stops
  • 58h 38m total
  • London to Puerto Rico
Search Deals
14/8
  • 14/8
  • 3 total stops
  • 57h 21m total
  • London to Puerto Rico
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£90 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 13 June 2025.

Tue 23/909:50LHR - SJU
2 stops29h 04mMultiple Airlines
Tue 30/921:26SJU - LHR
2 stops29h 34mMultiple Airlines
Deal found 10/6£470
Tue 9/908:25LHR - SJU
1 stop32h 42mIcelandair
Sun 21/912:50SJU - LHR
1 stop26h 55mIcelandair
Deal found 11/6£503
Tue 4/1108:25LHR - SJU
1 stop18h 35mJetBlue
Thu 13/1106:15SJU - LHR
1 stop19h 40mJetBlue
Deal found 12/6£506
Thu 6/1108:15LHR - SJU
2 stops23h 02mTAP AIR PORTUGAL
Sat 15/1107:10SJU - LHR
2 stops24h 15mTAP AIR PORTUGAL
Deal found 12/6£647
Sat 26/711:55LHR - BQN
1 stop20h 04mJetBlue
Sat 2/809:35BQN - LHR
1 stop18h 55mJetBlue
Deal found 10/6£969
Sat 26/708:00LHR - BQN
1 stop20h 09mAir Canada
Fri 1/800:15BQN - LHR
2 stops25h 15mAir Canada
Deal found 11/6£1,314
Sat 26/708:30LHR - BQN
2 stops19h 39mUnited Airlines
Fri 1/800:15BQN - LHR
2 stops30h 30mUnited Airlines
Deal found 11/6£1,325
Wed 9/708:00LHR - BQN
2 stops23h 01mMultiple Airlines
Fri 11/702:59BQN - LHR
2 stops22h 21mMultiple Airlines
Deal found 12/6£1,497
Sun 27/711:05LHR - MAZ
2 stops34h 22mUnited Airlines
Sun 3/814:00MAZ - LHR
2 stops39h 10mUnited Airlines
Deal found 12/6£1,551

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 13 June 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

Tue 23/9

09:50-09:54

2 stops29h 04m

San Juan Luis Munoz Marin Intl

Tue 30/9

21:26-08:00

2 stops29h 34m

£470

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 9/9

08:25-12:07

1 stop32h 42m

San Juan Luis Munoz Marin Intl

Sun 21/9

12:50-20:45

1 stop26h 55m

£503

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 4/11

12:20-00:37

1 stop16h 17m

San Juan Luis Munoz Marin Intl

Wed 12/11

01:59-20:45

1 stop14h 46m

£506

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 6/11

08:15-03:17

2 stops23h 02m

San Juan Luis Munoz Marin Intl

Sat 15/11

07:10-11:25

2 stops24h 15m

£647

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 4/11

06:30-23:31

2 stops21h 01m

San Juan Luis Munoz Marin Intl

Wed 12/11

05:55-11:30

1 stop25h 35m

£757

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Sat 26/7

11:55-02:59

1 stop20h 04m

Aguadilla Borinquen

Sat 2/8

09:35-09:30

1 stop18h 55m

£969

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Sat 26/7

08:00-23:09

1 stop20h 09m

Aguadilla Borinquen

Fri 1/8

00:15-06:30

2 stops25h 15m

£1,314

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Sat 26/7

08:30-23:09

2 stops19h 39m

Aguadilla Borinquen

Fri 1/8

00:15-11:45

2 stops30h 30m

£1,325

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Wed 9/7

08:00-02:01

2 stops23h 01m

Aguadilla Borinquen

Fri 11/7

02:59-06:20

2 stops22h 21m

£1,497

LondonMayagüez

LHR - MAZ

LHRMAZ

London Heathrow

Sun 27/7

11:05-16:27

2 stops34h 22m

Mayagüez Eugenio M De Hostos

Sun 3/8

14:00-10:10

2 stops39h 10m

£1,551

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 18 results
1
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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 13 June 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.

Rainfall in Puerto Rico by month

Plan your trip to Puerto Rico by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Puerto Rico ranges from 55.0 - 156.0 inches per month. November is typically the wettest month, when rainfall can reach 156.0 mm. March is typically the driest time to visit Puerto Rico when rainfall is around 55.0 mm.

Temperature in Puerto Rico by month

Plan your trip to Puerto Rico by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Puerto Rico, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 25.0 C).

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 13 June 2025.
To help decide which airline to fly from London to Puerto Rico, see what other customers have to say about United Airlines, Virgin Atlantic and JetBlue. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,790 reviews
Check prices

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Momny,Jun 2025

HND - BKK

I very love and happy with ANA and Sevice very super good .Thank you ANA
United Airlines
7.4
Good
8,790 reviews
United Airlines
7.4
Good
8,790 reviews
Check prices

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Momny,Jun 2025

HND - BKK

I very love and happy with ANA and Sevice very super good .Thank you ANA
Virgin Atlantic
7.4
Good
652 reviews
United Airlines
7.4
Good
8,790 reviews
Check prices

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Momny,Jun 2025

HND - BKK

I very love and happy with ANA and Sevice very super good .Thank you ANA
JetBlue
7.3
Good
2,923 reviews
United Airlines
7.4
Good
8,790 reviews
Check prices

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Momny,Jun 2025

HND - BKK

I very love and happy with ANA and Sevice very super good .Thank you ANA
Air Canada
7.1
Good
9,539 reviews
United Airlines
7.4
Good
8,790 reviews
Check prices

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Momny,Jun 2025

HND - BKK

I very love and happy with ANA and Sevice very super good .Thank you ANA
TAP AIR PORTUGAL
7.1
Good
1,885 reviews
United Airlines
7.4
Good
8,790 reviews
Check prices

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Momny,Jun 2025

HND - BKK

I very love and happy with ANA and Sevice very super good .Thank you ANA

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 Avianca, with whom users have recently found tickets for as low as £546. However, be on the lookout for offers from Iberia 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?

    Most travelers choose London Heathrow - San Juan Luis Munoz Marin Intl, London Heathrow - Aguadilla Borinquen or London Heathrow - Mayagüez Eugenio M De Hostos 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, 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

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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.
Heathrow to Montego Bay flights
Heathrow to Bridgetown flights
Gatwick to Montego Bay flights
Heathrow to Kingston flights
Gatwick to Kingston flights
Gatwick to Bridgetown flights
Gatwick to Punta Cana flights
Heathrow to Castries flights
Heathrow to Punta Cana flights
London City to Montego Bay flights
Gatwick to Castries flights
Heathrow to Luis Munoz Marin Intl flights
Heathrow to St. John's flights
London City to Kingston flights
Heathrow to St. George's flights
Luton to Montego Bay flights
Gatwick to St. John's flights
Heathrow to Port of Spain flights
Heathrow to Nassau flights
Gatwick to Luis Munoz Marin Intl flights
London City to Bridgetown flights
London City to Punta Cana flights
Stansted to Montego Bay flights
Heathrow to Kingstown flights
Heathrow to Santo Domingo flights
Stansted to Punta Cana flights
Heathrow to George Town flights
London City to Castries flights
Gatwick to Santo Domingo flights
Gatwick to St. George's flights
Gatwick to Castries flights
London City to Luis Munoz Marin Intl flights
Stansted to Kingston flights
Gatwick to Nassau flights
Gatwick to Port of Spain flights
Gatwick to George Town flights
Gatwick to Havana flights
Heathrow to Basseterre flights
Stansted to Bridgetown flights
Heathrow to Castries flights
Luton to Punta Cana flights
Gatwick to Basseterre flights
London City to Santo Domingo flights
Heathrow to Road Town flights
Gatwick to Kingstown flights
Heathrow to Providenciales flights
London City to St. John's flights
Heathrow to Havana flights
Heathrow to Roseau 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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£355Average£1,114FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£408Average£593FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
FinnairCheapest£412Average£546FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IcelandairCheapest£447Average£564FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
IberiaCheapest£506Average£714FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£532Average£689FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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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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