What are the cheapest airlines to fly from London Heathrow Airport to Puerto Rico one-way?

The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as £389. 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.

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.

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).

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.

What are the most popular airlines that fly from London Heathrow Airport to Puerto Rico?

Before booking your flight from London Heathrow Airport to Puerto Rico check out the most popular airlines for this route: Finnair, JetBlue or British Airways.

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

Find a great deal and save up to 59% by booking at least 57 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from London Heathrow Airport to Puerto Rico within the next two weeks, with the cheapest ticket starting at £475.

What is the cheapest month to fly from London Heathrow Airport to Puerto Rico?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, September can be a great choice for travel to Puerto Rico. Flights to Puerto Rico from London Heathrow Airport in September are about £664 on average during September, but can be found for as low as £436.

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.

£232+ Flights from London Heathrow Airport to Puerto Rico

Cheap flight deals from Heathrow to Puerto Rico

Round-trip from	£483
One-way from	£232
Popular in	July
Cheapest in	September
Average price	£932

JetBlue
3/9-17/9
2 total stops
29h 17m total
London to Puerto Rico

Search Deals

25/9
3 total stops
56h 54m total
London to Puerto Rico

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£88 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 July 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 11 July 2025.

Wed 3/908:15LHR - SJU

1 stop13h 37mJetBlue

Wed 17/912:50SJU - LHR

1 stop15h 40mJetBlue

Deal found 10/7£483

Fri 7/1112:20LHR - SJU

1 stop19h 29mIcelandair

Sat 15/1118:51SJU - LHR

2 stops21h 54mIcelandair

Deal found 10/7£489

Thu 18/912:45LHR - SJU

2 stops27h 49mMultiple Airlines

Wed 24/901:59SJU - LHR

2 stops27h 31mMultiple Airlines

Deal found 9/7£559

Fri 7/1112:25LHR - SJU

2 stops19h 24mTAP AIR PORTUGAL

Sat 15/1116:09SJU - LHR

2 stops22h 46mTAP AIR PORTUGAL

Deal found 10/7£617

Sat 15/1113:25LHR - BQN

2 stops38h 32mAir Canada

Tue 18/1101:09BQN - LHR

2 stops26h 01mAir Canada

Deal found 10/7£808

Fri 31/1016:20LHR - MAZ

2 stops52h 07mUnited Airlines

Tue 4/1114:00MAZ - LHR

2 stops36h 40mUnited Airlines

Deal found 9/7£968

Best flights from Heathrow to Puerto Rico
Discover carefully curated flight deals from Heathrow to Puerto Rico that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 July 2025.

Wed 3/908:15LHR - SJU

1 stop13h 37mJetBlue

Wed 17/912:50SJU - LHR

1 stop15h 40mJetBlue

Deal found 10/7£483

Fri 7/1112:20LHR - SJU

1 stop19h 29mIcelandair

Sat 15/1118:51SJU - LHR

2 stops21h 54mIcelandair

Deal found 10/7£489

Thu 18/912:45LHR - SJU

2 stops27h 49mMultiple Airlines

Wed 24/901:59SJU - LHR

2 stops27h 31mMultiple Airlines

Deal found 9/7£559

Fri 7/1112:25LHR - SJU

2 stops19h 24mTAP AIR PORTUGAL

Sat 15/1116:09SJU - LHR

2 stops22h 46mTAP AIR PORTUGAL

Deal found 10/7£617

Sat 15/1113:25LHR - BQN

2 stops38h 32mAir Canada

Tue 18/1101:09BQN - LHR

2 stops26h 01mAir Canada

Deal found 10/7£808

Fri 31/1016:20LHR - MAZ

2 stops52h 07mUnited Airlines

Tue 4/1114:00MAZ - LHR

2 stops36h 40mUnited Airlines

Deal found 9/7£968

Last-minute flights from Heathrow to Puerto Rico
Discover last-minute flight deals from Heathrow to Puerto Rico. Data last updated 11 July 2025 and is based on user searches.

Fri 15/820:45LHR - SJU

2 stops47h 21mMultiple Airlines

Fri 22/821:30SJU - LHR

1 stop17h 15mMultiple Airlines

Deal found 10/7£690

Sat 16/808:15LHR - SJU

1 stop20h 19mIcelandair

Sun 24/808:25SJU - LHR

1 stop17h 05mIcelandair

Deal found 10/7£542

Sat 30/808:15LHR - SJU

1 stop16h 49mJetBlue

Sun 14/913:00SJU - LHR

1 stop12h 30mJetBlue

Deal found 10/7£511

One-way flights from Heathrow to Puerto Rico
Search for one-way flight options from Heathrow to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated 11 July 2025.

Thu 25/920:50LHR - SJU

3 stops56h 54mMultiple Airlines

Deal found 9/7£232

Fri 29/808:25LHR - SJU

1 stop14h 17mIcelandair

Deal found 9/7£389

Thu 28/822:05LHR - SJU

1 stop23h 45mAvianca

Deal found 9/7£528

Sat 23/808:25LHR - SJU

1 stop14h 17mJetBlue

Deal found 9/7£575

Fri 29/806:00LHR - SJU

2 stops33h 54mTAP AIR PORTUGAL

Deal found 10/7£578

Mon 15/913:55LHR - SJU

2 stops31h 36mWestJet

Deal found 10/7£847

Fri 1/818:30LHR - SJU

2 stops30h 40mTurkish Airlines

Deal found 10/7£943

Sat 23/808:45LHR - SJU

2 stops32h 49mUnited Airlines

Deal found 9/7£968

Thu 20/1120:00LHR - SJU

2 stops22h 15mDelta

Deal found 10/7£1,386

Cheapflights Fare Finder

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

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 3/9

08:15-16:52

1 stop13h 37m

San Juan Luis Munoz Marin Intl

Wed 17/9

12:50-09:30

1 stop15h 40m

£483

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 7/11

12:20-03:49

1 stop19h 29m

San Juan Luis Munoz Marin Intl

Sat 15/11

18:51-20:45

2 stops21h 54m

£489

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 18/9

12:45-11:34

2 stops27h 49m

San Juan Luis Munoz Marin Intl

Wed 24/9

01:59-10:30

2 stops27h 31m

£559

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 7/11

12:25-03:49

2 stops19h 24m

San Juan Luis Munoz Marin Intl

Sat 15/11

16:09-18:55

2 stops22h 46m

£617

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Sat 15/11

13:25-23:57

2 stops38h 32m

Aguadilla Borinquen

Tue 18/11

01:09-07:10

2 stops26h 01m

£808

LondonMayagüez

LHR - MAZ

LHRMAZ

London Heathrow

Fri 31/10

16:20-16:27

2 stops52h 07m

Mayagüez Eugenio M De Hostos

Tue 4/11

14:00-06:40

2 stops36h 40m

£968

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 25/9

20:50-00:44

3 stops56h 54m

£232

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 29/8

08:25-17:42

1 stop14h 17m

£389

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 28/8

22:05-16:50

1 stop23h 45m

£528

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 23/8

08:25-17:42

1 stop14h 17m

£575

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Showing 1-10 of 15 results

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?

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.

Reviews of airlines servicing Puerto Rico

Read through reviews of airlines operating flights from London Heathrow Airport to Puerto Rico, such as Delta, United Airlines, andJetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,951 reviews

Check prices

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

7,951 reviews

Delta

8.0

Very Good

7,951 reviews

Check prices

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

8,846 reviews

Delta

8.0

Very Good

7,951 reviews

Check prices

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

2,914 reviews

Delta

8.0

Very Good

7,951 reviews

Check prices

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

3,896 reviews

Delta

8.0

Very Good

7,951 reviews

Check prices

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

WestJet

7.2

Good

2,927 reviews

Delta

8.0

Very Good

7,951 reviews

Check prices

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

What are the cheapest airlines to fly from London Heathrow Airport to Puerto Rico one-way?
The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as £389. 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Heathrow to Puerto Rico

Heathrow to Montego Bay flights

Heathrow to Bridgetown flights

Gatwick to Bridgetown flights

Gatwick to Kingston flights

Gatwick to Montego Bay flights

Heathrow to Kingston flights

Gatwick to Punta Cana flights

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Heathrow to Luis Munoz Marin Intl flights

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Gatwick to Castries flights

Heathrow to Santo Domingo flights

Stansted to Punta Cana flights

Gatwick to Nassau flights

Gatwick to St. George's flights

Stansted to Montego Bay flights

Heathrow to George Town flights

Gatwick to Luis Munoz Marin Intl flights

Gatwick to Havana flights

London City to Castries flights

Heathrow to Road Town flights

Heathrow to Oranjestad flights

Luton to Montego Bay flights

Heathrow to Pointe-à-Pitre flights

Gatwick to Port of Spain flights

Heathrow to Willemstad flights

London City to Luis Munoz Marin Intl flights

Stansted to Kingston flights

Gatwick to Kingstown flights

Stansted to Bridgetown flights

Luton to Punta Cana flights

Heathrow to Simpson Bay flights

Gatwick to Road Town flights

Heathrow to Castries flights

London City to Oranjestad flights

Gatwick to Pointe-à-Pitre flights

Stansted to Nassau flights

Heathrow to Roseau flights

Direct flights to

Direct flights to Montego Bay

Direct flights to Bridgetown

Direct flights to Kingston

Direct flights to Punta Cana

Direct flights to Port of Spain

Direct flights to St. John's

Direct flights to Kingstown

Direct flights to St. George's

Direct flights to Nassau

Direct flights to Castries

Direct flights to George Town

Direct flights to Providenciales

Direct flights to Basseterre

Direct flights to Oranjestad

Direct flights to Scarborough

Top 6 airlines flying from Heathrow to Puerto Rico

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£355	Average£1,114	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
JetBlue	Cheapest£413	Average£604	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Finnair	Cheapest£425	Average£552	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Icelandair	Cheapest£447	Average£566	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Iberia	Cheapest£506	Average£715	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
British Airways	Cheapest£532	Average£687	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

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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Cheap flights from London Heathrow Airport to Puerto Rico from £232

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 25/9. Fares are subject to change and may not be available on all flights or dates of travel.

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 11 July 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to Puerto Rico

Cheapest flights from Heathrow to Puerto RicoExplore 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 11 July 2025.

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 11 July 2025.

Cheapflights Fare Finder

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

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.

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?

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 11 July 2025.

Reviews of airlines servicing Puerto Rico

Read through reviews of airlines operating flights from London Heathrow Airport to Puerto Rico, such as Delta, United Airlines, andJetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

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

Can I find deals for flights from Heathrow to Puerto Rico that include hotel bookings?

How can I find direct flights from Heathrow to Puerto Rico?

Can I find deals for business class flights from Heathrow to Puerto Rico?

What is the cheapest month to book a flight from London Heathrow Airport to Puerto Rico?

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.

Top 6 airlines flying from Heathrow to Puerto Rico

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?

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

Can Cheapflights find flights from Heathrow to Puerto Rico with no change fees?

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

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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 11 July 2025.