How long is the flight from London Heathrow Airport to Puerto Rico?

JetBlue can get you from London Heathrow Airport to Puerto Rico in just under 20h 30m. Your travel time can differ by up to . The distance between London Heathrow Airport and Puerto Rico is about 4224 mi.

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: JetBlue, Iberia or British Airways.

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.

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.

£350+ Cheap Flights from London Heathrow Airport to Puerto Rico

Cheap flight deals from Heathrow to Puerto Rico

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 28 October 2026.

Wed 11/1107:25 -

1 stop20h 30m

Wed 18/1101:09 -

2 stops27h 21m

Deal found 25/10£523

Thu 12/1112:20 -

1 stop15h 35m

Thu 19/1101:09 -

2 stops39h 51m

Deal found 25/10£541

Tue 10/1106:30 -

2 stops21h 08m

Mon 23/1103:42 -

1 stop22h 48m

Deal found 23/10£610

Thu 12/1107:25 -

1 stop17h 23m

Thu 26/1115:50 -

1 stop13h 40m

Deal found 27/10£626

Tue 8/1206:30 -

2 stops23h 28m

Mon 14/1203:28 -

1 stop23h 02m

Deal found 24/10£627

Wed 11/1107:25 -

1 stop17h 23m

Mon 16/1120:39 -

1 stop30h 16m

Deal found 26/10£631

Sun 13/1206:30 -

2 stops23h 28m

Mon 21/1213:57 -

1 stop18h 38m

Deal found 23/10£632

Tue 1/1207:25 -

1 stop20h 05m

Tue 8/1213:55 -

1 stop15h 35m

Deal found 27/10£633

Thu 12/1120:25 -

2 stops31h 13m

Thu 26/1111:38 -

1 stop21h 02m

Deal found 25/10£636

Thu 12/1106:30 -

2 stops21h 08m

Mon 16/1116:52 -

1 stop15h 43m

Deal found 26/10£638

Wed 11/1106:00 -

2 stops34h 36m

Mon 16/1106:00 -

2 stops26h 40m

Deal found 26/10£639

Wed 18/1107:25 -

1 stop20h 30m

Tue 24/1105:05 -

1 stop12h 35m

Deal found 24/10£662

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 28 October 2026.

Wed 18/1107:25 -

1 stop20h 30m

Tue 24/1105:05 -

1 stop12h 35m

Deal found 24/10£662

Wed 18/1113:20 -

2 stops41h 29m

Mon 23/1101:09 -

2 stops25h 21m

Deal found 24/10£855

Sat 27/206:00 -

2 stops24h 02m

Tue 2/306:50 -

2 stops25h 50m

Deal found 27/10£877

Thu 31/1211:25 -

2 stops26h 23m

Tue 12/106:01 -

2 stops23h 44m

Deal found 28/10£1,006

Thu 12/1107:30 -

2 stops20h 27m

Sun 15/1101:09 -

1 stop27h 16m

Deal found 27/10£1,082

Sat 27/208:05 -

1 stop19h 23m

Tue 2/314:10 -

1 stop15h 20m

Deal found 27/10£667

Fri 15/108:05 -

1 stop17h 50m

Sat 30/110:43 -

1 stop18h 47m

Deal found 25/10£670

Sat 21/1109:20 -

1 stop19h 20m

Fri 27/1103:29 -

1 stop14h 11m

Deal found 24/10£675

Thu 12/1116:30 -

2 stops36h 43m

Thu 26/1106:05 -

2 stops35h 30m

Deal found 26/10£879

Tue 10/1112:20 -

1 stop15h 35m

Tue 17/1101:09 -

2 stops25h 21m

Deal found 28/10£944

Thu 12/1119:55 -

2 stops33h 18m

Wed 25/1116:43 -

2 stops44h 47m

Deal found 27/10£879

Sat 24/411:55 -

1 stop19h 03m

Fri 30/407:20 -

1 stop18h 10m

Deal found 23/10£751

Sun 8/1106:25 -

2 stops22h 48m

Sat 21/1116:43 -

2 stops25h 47m

Deal found 25/10£970

Sat 27/318:30 -

2 stops43h 24m

Sun 4/405:10 -

2 stops36h 45m

Deal found 27/10£925

Wed 11/1107:25 -

1 stop20h 30m

Thu 19/1105:05 -

1 stop12h 35m

Deal found 27/10£814

Thu 31/1211:25 -

2 stops26h 23m

Tue 12/117:35 -

2 stops23h 30m

Deal found 26/10£1,030

Thu 12/1112:20 -

1 stop15h 35m

Sat 21/1105:05 -

1 stop12h 35m

Deal found 25/10£817

Wed 9/1209:20 -

1 stop14h 07m

Wed 16/1207:00 -

1 stop19h 55m

Deal found 25/10£834

Tue 10/1107:25 -

1 stop20h 30m

Wed 18/1107:01 -

1 stop34h 39m

Deal found 28/10£941

Find flight deals from Heathrow to Puerto Rico

Round-trip from	£523
One-way from	£350
Popular in	December
Cheapest in	February
Average price	£616

Air Canada
11/11-18/11
3 total stops
47h 51m total
London to Puerto Rico

Search Deals

21/1-31/12
3 total stops
33h 59m total
London to Puerto Rico

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (£29 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£15 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

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

Cheapest return flight

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Fri 13/11

09:20-01:13

1 stop19h 53m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£423

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Sun 6/12

12:20-01:52

1 stop17h 32m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£423

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Thu 12/11

07:25-20:48

1 stop17h 23m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£426

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Fri 5/2

08:05-23:28

1 stop19h 23m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£427

Fastest return journey

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Wed 6/1

09:20-19:25

1 stop14h 05m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£430

LondonAguadilla

LHR London Heathrow - BQN Aguadilla Borinquen

LHRBQN

London Heathrow

Wed 18/11

07:25-23:55

1 stop20h 30m

Aguadilla Borinquen

Tue 24/11

05:05-21:40

1 stop12h 35m

£662

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Sat 27/2

08:05-23:28

1 stop19h 23m

San Juan Luis Munoz Marin Intl

Tue 2/3

14:10-09:30

1 stop15h 20m

£667

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Fri 15/1

08:05-21:55

1 stop17h 50m

San Juan Luis Munoz Marin Intl

Sat 30/1

10:43-09:30

1 stop18h 47m

£670

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Sat 21/11

09:20-00:40

1 stop19h 20m

San Juan Luis Munoz Marin Intl

Fri 27/11

03:29-21:40

1 stop14h 11m

£675

LondonAguadilla

LHR London Heathrow - BQN Aguadilla Borinquen

LHRBQN

London Heathrow

Tue 5/1

07:25-23:25

1 stop20h 00m

Aguadilla Borinquen

Wed 31/12

00:00-05:00

Nonstop0h 00m

£681

Flights are sorted by cheapest return flights first.

Deals found on 27/10

Showing 1-10 of 30 resultsSorted by cheapest first

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.

LHR-SJU

LHR-BQN

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

LHR-PR0

LHR-SJU

LHR-BQN

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 £570). Flying from London Heathrow Airport to Puerto Rico in December is currently the most expensive (average of £1,015). 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 34 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

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

JetBlue

7.1

Good

3,075 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2024

BDL - SJU

My experience was very positive: I liked the big space among seats, the huge entertainment options, and the crew professionalism. My only complaint is the lacked of use of Spanish. As a Spanish speaker, I didn’t like this.

JetBlue

7.1

Good

3,075 reviews

JetBlue

7.1

Good

3,075 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2024

BDL - SJU

Icelandair

7.0

Good

766 reviews

JetBlue

7.1

Good

3,075 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2024

BDL - SJU

Iberia

7.0

Good

3,245 reviews

JetBlue

7.1

Good

3,075 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2024

BDL - SJU

British Airways

6.7

Okay

8,274 reviews

JetBlue

7.1

Good

3,075 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2024

BDL - SJU

Related info for your journey

How long is the flight from London Heathrow Airport to Puerto Rico?
JetBlue can get you from London Heathrow Airport to Puerto Rico in just under 20h 30m. Your travel time can differ by up to . The distance between London Heathrow Airport and Puerto Rico is about 4224 mi.
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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Puerto Rico (average of £570). Flying from London Heathrow Airport to Puerto Rico in December is currently the most expensive (average of £1,015). 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

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Top 4 airlines flying from Heathrow to Puerto Rico

Airline	Cheapest	Average	Flexibility	On-time
JetBlue	Cheapest£420	Average£647	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Icelandair	Cheapest£488	Average£680	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Iberia	Cheapest£850	Average£1,037	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
British Airways	Cheapest£851	Average£1,083	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 £350

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/1. 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

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 28 October 2026.

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 28 October 2026.

Best flights from Heathrow to Puerto RicoDiscover 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 28 October 2026.

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 28 October 2026.

Last-minute flights from Heathrow to Puerto RicoDiscover last-minute flight deals from Heathrow to Puerto Rico. Data last updated 28 October 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Puerto Rico. Data last updated 28 October 2026 and is based on user searches.

One-way flights from Heathrow to Puerto RicoSearch for one-way flight options from Heathrow to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated 28 October 2026.

Search for one-way flight options from Heathrow to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated 28 October 2026.

Find flight deals from Heathrow to Puerto Rico

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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

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

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 34 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

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

Related info for your journey

How long is the flight from London Heathrow Airport to Puerto Rico?

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.

Complete your trip

Complete your trip to Puerto Rico by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to

Book a non-stop flight to one of these other cities located in .

Search flights from Heathrow to Puerto Rico by cabin class

Find flights from Heathrow to Puerto Rico, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Heathrow and Puerto Rico flights

Browse other Heathrow and Puerto Rico flight options. Last updated on 28 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Heathrow to Puerto Rico flights

Consider these flights travelling from Heathrow to Puerto Rico.

Top 4 airlines flying from Heathrow to Puerto Rico

Fly with Cheapflights

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?

100% Free

Book with Flexibility

Travel Smart

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 28 October 2026.

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 28 October 2026.

Last-minute flights from Heathrow to Puerto Rico
Discover last-minute flight deals from Heathrow to Puerto Rico. Data last updated 28 October 2026 and is based on user searches.

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 28 October 2026.