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 14h 34m. Fly via Delta, United Airlines, 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.

£197+ 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 10 September 2026.

Wed 16/914:22 -

1 stop12h 28m

Thu 24/910:50 -

1 stop13h 00m

Deal found 9/9£508

Wed 11/1113:00 -

1 stop13h 45m

Tue 24/1106:00 -

2 stops19h 36m

Deal found 9/9£518

Mon 2/1118:55 -

1 stop13h 10m

Mon 16/1110:45 -

1 stop13h 15m

Deal found 7/9£522

Tue 8/920:05 -

1 stop12h 30m

Tue 15/907:50 -

1 stop12h 35m

Deal found 6/9£528

Mon 9/1114:10 -

1 stop13h 55m

Mon 16/1106:20 -

2 stops20h 55m

Deal found 6/9£529

Wed 11/1107:00 -

1 stop21h 05m

Tue 24/1108:55 -

1 stop18h 20m

Deal found 9/9£534

Mon 16/1118:55 -

1 stop12h 45m

Fri 20/1110:45 -

1 stop13h 15m

Deal found 6/9£535

Wed 14/1014:59 -

2 stops16h 06m

Wed 21/1020:05 -

2 stops25h 44m

Deal found 8/9£536

Mon 28/1218:05 -

1 stop32h 15m

Fri 8/111:35 -

1 stop16h 20m

Deal found 9/9£537

Thu 5/1118:10 -

1 stop12h 25m

Tue 10/1107:30 -

1 stop13h 10m

Deal found 9/9£542

Tue 8/907:30 -

1 stop17h 50m

Tue 15/911:15 -

1 stop16h 04m

Deal found 5/9£543

Sun 11/1008:45 -

2 stops19h 25m

Sun 8/1111:40 -

2 stops18h 10m

Deal found 7/9£5,638

Find flight deals from Puerto Rico to Heathrow

Round-trip from	£504
One-way from	£197
Popular in	June
Cheapest in	February
Average price	£563

United Airlines
16/11-18/11
3 total stops
32h 40m total
Puerto Rico to London

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Virgin Atlantic
5/10-31/12
1 total stop
15h 21m total
Puerto Rico to London

Search Deals

Highest demand for flights based on searches. 19% potential increase in price (£109 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 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 4/10

01:00-06:45

2 stops24h 45m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£223

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

£223

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

£223

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Sun 15/11

02:05-06:40

2 stops24h 35m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£223

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Tue 20/10

07:15-07:15

1 stop19h 00m

London Heathrow

Tue 27/10

20:10-16:49

2 stops24h 39m

£536

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 28/12

18:05-20:10

1 stop22h 05m

London Heathrow

Fri 8/1

20:10-17:20

2 stops25h 10m

£548

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 2/11

07:40-07:40

1 stop20h 00m

London Heathrow

Sat 7/11

06:50-00:36

2 stops21h 46m

£600

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Thu 24/9

13:16-08:50

1 stop14h 34m

London Heathrow

Mon 28/9

09:55-22:19

2 stops17h 24m

£600

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Thu 14/1

08:05-07:10

2 stops19h 05m

London Heathrow

Sun 24/1

06:50-22:22

2 stops19h 32m

£610

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Wed 18/11

02:05-08:25

1 stop26h 20m

London Heathrow

Sat 28/11

06:50-00:36

2 stops21h 46m

£615

Flights are sorted by cheapest return flights first.

Deals found on 7/9

Showing 1-10 of 15 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 £532). Flying from Puerto Rico to London Heathrow Airport in June is currently the most expensive (average of £835). 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 33 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 14h 34m. Fly via Delta, United Airlines, 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 £532). Flying from Puerto Rico to London Heathrow Airport in June is currently the most expensive (average of £835). 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?

Cheapflights simply makes it quick and affordable to book flights from Puerto Rico to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from Puerto Rico to London Heathrow Airport from £197

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/10. 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 10 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 10 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 10 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 10 September 2026.

Last-minute flights from Puerto Rico to HeathrowDiscover last-minute flight deals from Puerto Rico to Heathrow. Data last updated 10 September 2026 and is based on user searches.

Discover last-minute flight deals from Puerto Rico to Heathrow. Data last updated 10 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 10 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 10 September 2026.

Find flight deals from Puerto Rico to Heathrow

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Cheapflights Fare Finder

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 33 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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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 10 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 10 September 2026.

Last-minute flights from Puerto Rico to Heathrow
Discover last-minute flight deals from Puerto Rico to Heathrow. Data last updated 10 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 10 September 2026.