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

There are many flights that can get you from Puerto Rico to London Heathrow Airport in 13h 44m. Fly via British Airways, JetBlue, or KLM to get the fastest option. There are 4179 mi between Puerto Rico and London Heathrow Airport. This flight may include one or multiple stops.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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

The most popular flight routes from Puerto Rico to London Heathrow Airport are San Juan Luis Munoz Marin Intl - London Heathrow, Culebra - London Heathrow and Ponce Mercedita - London Heathrow.

What is the cheapest time of day to fly from PR to LHR?

When flying from Puerto Rico to London Heathrow Airport, 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 Puerto Rico to Heathrow that include hotel bookings?

Yes. In addition to deals on Puerto Rico to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

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

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Puerto Rico to Heathrow.

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

Yes. Cheapflights offers flight deals from Puerto Rico to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£150+ Cheap Flights from Puerto Rico to London Heathrow Airport

Cheap flight deals from Puerto Rico to Heathrow

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Puerto Rico to Heathrow
Explore the most affordable flight options available from Puerto Rico to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Wed 30/1213:10 -

1 stop13h 15m

Fri 8/108:55 -

1 stop16h 05m

Deal found 30/8£581

Thu 26/1118:10 -

1 stop22h 00m

Thu 3/1214:45 -

2 stops36h 28m

Deal found 2/9£596

Wed 2/1215:17 -

1 stop16h 48m

Wed 16/1207:35 -

1 stop13h 05m

Deal found 3/9£600

Tue 1/1213:59 -

1 stop15h 31m

Mon 14/1212:20 -

1 stop17h 32m

Deal found 3/9£600

Thu 1/1013:16 -

1 stop12h 59m

Sat 3/1008:15 -

1 stop16h 19m

Deal found 2/9£605

Mon 28/1218:05 -

1 stop22h 05m

Fri 8/108:55 -

1 stop16h 05m

Deal found 30/8£605

Tue 10/1113:00 -

1 stop13h 45m

Tue 24/1111:25 -

1 stop12h 35m

Deal found 2/9£608

Wed 11/1118:55 -

1 stop13h 10m

Mon 16/1108:45 -

1 stop15h 15m

Deal found 2/9£610

Mon 14/917:59 -

1 stop14h 16m

Mon 1/317:25 -

2 stops22h 00m

Deal found 1/9£611

Wed 11/1114:10 -

1 stop16h 20m

Mon 16/1106:20 -

2 stops20h 55m

Deal found 2/9£611

Sat 17/1008:45 -

2 stops31h 10m

Sat 24/1007:40 -

2 stops29h 42m

Deal found 2/9£1,058

Thu 15/1008:45 -

2 stops19h 45m

Thu 22/1008:20 -

2 stops21h 09m

Deal found 31/8£3,579

Find flight deals from Puerto Rico to Heathrow

Round-trip from	£568
One-way from	£150
Popular in	June
Cheapest in	February
Average price	£565

Iberia
24/2-6/3
2 total stops
26h 20m total
Puerto Rico to London

Search Deals

JetBlue
3/12-31/12
1 total stop
15h 31m total
Puerto Rico to London

Search Deals

Highest demand for flights based on searches. 19% potential increase in price (£112 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£18 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Sun 20/9

10:30-09:30

1 stop18h 00m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£215

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Tue 17/11

07:00-06:55

1 stop19h 55m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£222

Fastest return journey

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Wed 16/9

13:16-08:50

1 stop14h 34m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£224

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 16/11

17:50-20:35

2 stops22h 45m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£224

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 2/11

08:15-07:50

1 stop19h 35m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£226

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Tue 17/11

08:25-12:00

1 stop23h 35m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£226

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Tue 9/2

14:35-10:50

2 stops16h 15m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£226

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Fri 4/12

02:05-07:55

2 stops25h 50m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£226

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Thu 5/11

07:00-06:55

1 stop19h 55m

London Heathrow

Mon 9/11

08:05-20:48

1 stop16h 43m

£623

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Tue 20/10

13:00-09:30

1 stop15h 30m

London Heathrow

Tue 27/10

09:20-00:13

1 stop18h 53m

£625

Flights are sorted by cheapest return flights first.

Deals found on 3/9

Showing 1-10 of 18 resultsSorted by cheapest first

Best time to book a flight from Puerto Rico to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Puerto Rico with our price prediction graph.

SJU-LHR

PSE-LHR

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 Puerto Rico to London Heathrow Airport

PR0-LHR

SJU-LHR

PSE-LHR

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

Currently, April is the cheapest month in which you can book a flight from Puerto Rico to London Heathrow Airport (average of £534). Flying from Puerto Rico to London Heathrow Airport in December is currently the most expensive (average of £849). 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 Puerto Rico to London Heathrow Airport?

The price you pay for your flight from Puerto Rico to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 35 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

How long is the flight from Puerto Rico to London Heathrow Airport?
There are many flights that can get you from Puerto Rico to London Heathrow Airport in 13h 44m. Fly via British Airways, JetBlue, or KLM to get the fastest option. There are 4179 mi between Puerto Rico and London Heathrow Airport. This flight may include one or multiple stops.
What are the most popular routes from Puerto Rico to London Heathrow Airport?
The most popular flight routes from Puerto Rico to London Heathrow Airport are San Juan Luis Munoz Marin Intl - London Heathrow, Culebra - London Heathrow and Ponce Mercedita - London Heathrow.
Can I find deals for flights from Puerto Rico to Heathrow that include hotel bookings?
Yes. In addition to deals on Puerto Rico to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Puerto Rico to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Puerto Rico to Heathrow.
Can I find deals for business class flights from Puerto Rico to Heathrow?
Yes. Cheapflights offers flight deals from Puerto Rico to Heathrow 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 Puerto Rico to London Heathrow Airport?
Currently, April is the cheapest month in which you can book a flight from Puerto Rico to London Heathrow Airport (average of £534). Flying from Puerto Rico to London Heathrow Airport in December is currently the most expensive (average of £849). 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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Why should you use Cheapflights to find cheap flight tickets from Puerto Rico to Heathrow?

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

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Cheap flights from Puerto Rico to London Heathrow Airport from £150

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Puerto Rico to Heathrow

Cheapest flights from Puerto Rico to HeathrowExplore the most affordable flight options available from Puerto Rico to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Explore the most affordable flight options available from Puerto Rico to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Best flights from Puerto Rico to HeathrowDiscover carefully curated flight deals from Puerto Rico to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Discover carefully curated flight deals from Puerto Rico to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Last-minute flights from Puerto Rico to HeathrowDiscover last-minute flight deals from Puerto Rico to Heathrow. Data last updated 4 September 2026 and is based on user searches.

Discover last-minute flight deals from Puerto Rico to Heathrow. Data last updated 4 September 2026 and is based on user searches.

One-way flights from Puerto Rico to HeathrowSearch for one-way flight options from Puerto Rico to Heathrow. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.

Search for one-way flight options from Puerto Rico to Heathrow. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.

Find flight deals from Puerto Rico to Heathrow

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

Best time to book a flight from Puerto Rico to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Puerto Rico with our price prediction graph.

Cheapflights Insights

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

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

The price you pay for your flight from Puerto Rico to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 35 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

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

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

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

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

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

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

Travelling to a place near London Heathrow Airport?

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Alternative routes for Puerto Rico to Heathrow

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Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 4 September 2026.

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Browse other Puerto Rico and Heathrow flight options. Last updated on 4 September 2026.

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How does Cheapflights help users find flights from Puerto Rico to Heathrow?

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

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

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

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Cheapest flights from Puerto Rico to Heathrow
Explore the most affordable flight options available from Puerto Rico to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Best flights from Puerto Rico to Heathrow
Discover carefully curated flight deals from Puerto Rico to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Last-minute flights from Puerto Rico to Heathrow
Discover last-minute flight deals from Puerto Rico to Heathrow. Data last updated 4 September 2026 and is based on user searches.

One-way flights from Puerto Rico to Heathrow
Search for one-way flight options from Puerto Rico to Heathrow. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.