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Cheap flights from London Heathrow Airport to Puerto Rico from £465

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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SJU
5 May — 12 May1
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 30 April 2025.

Round-trip from

£536

One-way from

£465

Popular in

July

Cheapest in

September

Average price

£693
Icelandair
  • Icelandair
  • 26/9-5/10
  • 3 total stops
  • 34h 50m total
  • London to Puerto Rico
Search Deals
6/8
  • 6/8
  • 3 total stops
  • 24h 54m total
  • London to Puerto Rico
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£93 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 April 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 30 April 2025.

Fri 26/908:25LHR - SJU
2 stops22h 20mIcelandair
Sun 5/1003:15SJU - LHR
1 stop12h 30mIcelandair
Deal found 29/4£536
Fri 26/908:15LHR - SJU
1 stop18h 03mJetBlue
Sun 5/1003:15SJU - LHR
1 stop12h 30mJetBlue
Deal found 29/4£538
Mon 7/720:10LHR - SJU
1 stop18h 52mMultiple Airlines
Fri 11/706:00SJU - LHR
1 stop19h 25mMultiple Airlines
Deal found 29/4£565
Mon 9/620:00LHR - SJU
1 stop24h 05mIberia
Fri 13/613:35SJU - LHR
1 stop14h 50mIberia
Deal found 29/4£687
Fri 13/611:55LHR - BQN
1 stop20h 04mJetBlue
Fri 20/609:40BQN - LHR
1 stop18h 50mJetBlue
Deal found 29/4£728
Tue 6/511:20LHR - SJU
2 stops26h 54mTAP AIR PORTUGAL
Tue 13/513:58SJU - LHR
2 stops23h 52mTAP AIR PORTUGAL
Deal found 29/4£808
Fri 13/622:05LHR - SJU
1 stop23h 45mAvianca
Fri 20/614:10SJU - LHR
2 stops20h 25mAvianca
Deal found 28/4£857
Fri 26/908:30LHR - SJU
2 stops20h 27mUnited Airlines
Sun 5/1001:05SJU - LHR
1 stop14h 35mUnited Airlines
Deal found 29/4£871
Thu 3/712:30LHR - SJU
1 stop15h 25mBritish Airways
Tue 12/813:35SJU - LHR
1 stop14h 50mBritish Airways
Deal found 29/4£890
Tue 13/506:30LHR - SJU
2 stops22h 12mDelta
Thu 19/614:40SJU - LHR
2 stops15h 45mDelta
Deal found 29/4£916
Mon 16/607:30LHR - SJU
2 stops21h 27mLufthansa
Wed 25/613:25SJU - LHR
1 stop12h 50mLufthansa
Deal found 29/4£932
Fri 13/613:00LHR - BQN
1 stop15h 09mUnited Airlines
Thu 19/600:15BQN - LHR
2 stops25h 40mUnited Airlines
Deal found 29/4£1,103

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 30 April 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

Fri 26/9

08:25-01:45

2 stops22h 20m

San Juan Luis Munoz Marin Intl

Sun 5/10

03:15-20:45

1 stop12h 30m

£536

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 26/9

08:15-21:18

1 stop18h 03m

San Juan Luis Munoz Marin Intl

Sun 5/10

03:15-20:45

1 stop12h 30m

£538

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 19/5

14:40-10:00

2 stops24h 20m

San Juan Luis Munoz Marin Intl

Sat 24/5

21:30-19:45

1 stop17h 15m

£560

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 9/6

20:00-15:05

1 stop24h 05m

San Juan Luis Munoz Marin Intl

Fri 13/6

13:35-09:25

1 stop14h 50m

£687

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Fri 13/6

11:55-02:59

1 stop20h 04m

Aguadilla Borinquen

Fri 20/6

09:40-09:30

1 stop18h 50m

£728

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 26/9

09:30-23:57

2 stops19h 27m

San Juan Luis Munoz Marin Intl

Mon 6/10

13:30-07:15

1 stop12h 45m

£852

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 13/6

22:05-16:50

1 stop23h 45m

San Juan Luis Munoz Marin Intl

Fri 20/6

14:10-15:35

2 stops20h 25m

£857

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 26/9

08:30-23:57

2 stops20h 27m

San Juan Luis Munoz Marin Intl

Sun 5/10

01:05-20:40

1 stop14h 35m

£871

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 3/7

12:30-22:55

1 stop15h 25m

San Juan Luis Munoz Marin Intl

Tue 12/8

13:35-09:25

1 stop14h 50m

£890

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 13/5

06:30-23:42

2 stops22h 12m

San Juan Luis Munoz Marin Intl

Thu 19/6

14:40-11:25

2 stops15h 45m

£916

Flights are sorted by cheapest return flights first.

Deals found on 28/4

Showing 1-10 of 20 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 30 April 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 30 April 2025.
To help decide which airline to fly from London to Puerto Rico, see what other customers have to say about Delta, United Airlines 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.
Delta
8.0
Very Good
7,936 reviews
Check prices

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

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
Delta
8.0
Very Good
7,936 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

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
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

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
JetBlue
7.3
Good
2,922 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

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
Turkish Airlines
7.3
Good
3,790 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

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
Air Canada
7.0
Good
9,245 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

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 Iberia, with whom users have recently found tickets for as low as £509. 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?

    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.
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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 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£419Average£551FlexibilityNo cancel feeOn-time76%
Search Finnair flights
JetBlueCheapest£439Average£661FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IcelandairCheapest£451Average£567FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
IberiaCheapest£506Average£685FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£559Average£709FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£872Average£1,129FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic 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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