How long is the flight from Puerto Rico to London?

Airlines like KLM, JetBlue, and Delta fly from Puerto Rico to London in about 16h 20m. The time it takes to get you to your destination can typically vary by up to 5h 45m. The distance from Puerto Rico to London is about 4179 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in London 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 when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, 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?

When deciding which route to take from Puerto Rico to London consider San Juan Luis Munoz Marin Intl - London Heathrow, San Juan Luis Munoz Marin Intl - London City or San Juan Luis Munoz Marin Intl - London Gatwick as they are the most popular.

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

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

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

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

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

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

Yes. Cheapflights offers flight deals from Puerto Rico to London 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

Cheap flight deals from Puerto Rico to London

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Puerto Rico to London
Explore the most affordable flight options available from Puerto Rico to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 September 2026.

Tue 20/1007:20 -

1 stop21h 40m

Sun 8/1112:35 -

1 stop18h 15m

Deal found 3/9£486

Mon 19/1019:44 -

1 stop33h 16m

Sun 8/1112:35 -

1 stop18h 15m

Deal found 3/9£487

Sat 24/1010:39 -

1 stop18h 21m

Sun 8/1112:35 -

1 stop18h 15m

Deal found 3/9£491

Tue 20/1010:39 -

1 stop18h 21m

Tue 27/1010:10 -

1 stop19h 40m

Deal found 7/9£493

Sun 11/1009:43 -

1 stop19h 17m

Sun 8/1112:35 -

1 stop25h 24m

Deal found 7/9£502

Tue 20/1003:00 -

1 stop26h 00m

Sun 8/1112:35 -

1 stop18h 15m

Deal found 3/9£504

Sun 18/1010:39 -

1 stop18h 21m

Sun 8/1112:35 -

1 stop18h 15m

Deal found 3/9£521

Mon 9/1118:55 -

1 stop13h 10m

Mon 16/1106:15 -

1 stop14h 25m

Deal found 6/9£524

Tue 8/920:05 -

1 stop12h 30m

Tue 15/907:50 -

1 stop12h 35m

Deal found 6/9£530

Mon 9/1114:10 -

1 stop13h 55m

Mon 16/1106:20 -

2 stops20h 55m

Deal found 6/9£530

Thu 22/1010:39 -

1 stop18h 21m

Sun 8/1112:35 -

1 stop18h 15m

Deal found 3/9£535

Mon 16/1118:55 -

1 stop12h 45m

Fri 20/1110:45 -

1 stop13h 15m

Deal found 6/9£536

Best flights from Puerto Rico to London
Discover carefully curated flight deals from Puerto Rico to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 September 2026.

Sun 11/1009:43 -

1 stop19h 17m

Sun 8/1112:35 -

1 stop25h 24m

Deal found 7/9£502

Fri 12/215:46 -

1 stop35h 54m

Mon 15/206:35 -

2 stops19h 47m

Deal found 3/9£595

Thu 24/913:16 -

1 stop14h 34m

Mon 28/909:55 -

2 stops17h 24m

Deal found 6/9£601

Sat 24/1013:00 -

1 stop16h 30m

Sun 8/1108:15 -

1 stop16h 33m

Deal found 3/9£630

Mon 16/1107:00 -

2 stops23h 30m

Fri 20/1113:05 -

1 stop14h 49m

Deal found 6/9£687

Wed 3/321:35 -

1 stop12h 25m

Thu 11/307:40 -

1 stop13h 00m

Deal found 2/9£782

Tue 17/1111:20 -

2 stops25h 10m

Sat 28/1106:30 -

2 stops25h 18m

Deal found 6/9£814

Mon 12/1001:00 -

1 stop25h 15m

Mon 19/1017:55 -

2 stops34h 55m

Deal found 3/9£640

Wed 6/107:30 -

2 stops19h 45m

Sat 16/109:05 -

2 stops18h 45m

Deal found 5/9£692

Sat 17/1006:20 -

1 stop19h 10m

Fri 23/1008:15 -

1 stop16h 38m

Deal found 2/9£695

Wed 3/302:05 -

2 stops25h 05m

Tue 9/306:50 -

2 stops19h 32m

Deal found 6/9£655

Sun 17/121:30 -

2 stops31h 40m

Sun 24/121:45 -

2 stops22h 55m

Deal found 2/9£745

Sun 13/1207:00 -

2 stops20h 05m

Wed 23/1210:50 -

1 stop16h 30m

Deal found 3/9£704

Sun 18/1014:55 -

1 stop15h 40m

Sun 8/1106:50 -

2 stops21h 46m

Deal found 3/9£667

Tue 15/1221:35 -

1 stop12h 25m

Wed 23/1207:40 -

2 stops18h 52m

Deal found 5/9£820

Fri 12/221:35 -

2 stops31h 45m

Mon 15/219:55 -

2 stops24h 45m

Deal found 3/9£752

Thu 19/1105:30 -

2 stops23h 40m

Sat 28/1106:30 -

2 stops25h 18m

Deal found 5/9£833

Wed 30/1218:05 -

1 stop22h 05m

Fri 8/108:55 -

1 stop16h 05m

Deal found 6/9£706

Mon 2/1121:35 -

1 stop12h 40m

Sat 7/1107:45 -

2 stops20h 14m

Deal found 6/9£837

Sun 22/1105:30 -

2 stops23h 40m

Mon 30/1106:30 -

2 stops22h 47m

Deal found 4/9£866

Tue 20/1013:15 -

2 stops22h 10m

Tue 27/1010:00 -

2 stops30h 05m

Deal found 6/9£788

Thu 5/1107:00 -

2 stops22h 10m

Tue 10/1106:30 -

2 stops22h 43m

Deal found 4/9£814

Thu 26/1111:31 -

2 stops17h 19m

Mon 30/1108:50 -

2 stops19h 07m

Deal found 4/9£976

Wed 21/1006:00 -

2 stops22h 55m

Sun 8/1106:30 -

2 stops22h 43m

Deal found 3/9£815

Sun 22/1111:31 -

2 stops17h 19m

Mon 30/1108:50 -

2 stops19h 07m

Deal found 6/9£983

Thu 19/1105:30 -

2 stops23h 40m

Sat 28/1106:30 -

2 stops25h 18m

Deal found 6/9£833

Thu 24/913:16 -

2 stops22h 09m

Mon 28/910:00 -

2 stops31h 03m

Deal found 6/9£840

Thu 4/311:45 -

2 stops21h 05m

Tue 9/306:50 -

2 stops20h 50m

Deal found 6/9£1,027

Sun 11/1008:45 -

2 stops19h 25m

Sun 8/1111:40 -

2 stops18h 10m

Deal found 7/9£5,651

Find flight deals from Puerto Rico to London

Round-trip from	£486
One-way from	£150
Popular in	June
Cheapest in	February
Average price	£564

20/10-8/11
2 total stops
39h 55m 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 (£110 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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LGW London Gatwick

SJULGW

San Juan Luis Munoz Marin Intl

Thu 10/12

19:43-10:00

1 stop34h 17m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£203

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

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

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

Sun 4/10

01:00-06:45

2 stops24h 45m

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

Mon 19/10

13:15-07:15

1 stop13h 00m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£226

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LGW London Gatwick

SJULGW

San Juan Luis Munoz Marin Intl

Tue 10/11

18:10-15:45

2 stops17h 35m

London Gatwick

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

18:10-20:10

1 stop22h 00m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£226

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LGW London Gatwick

SJULGW

San Juan Luis Munoz Marin Intl

Thu 3/12

18:10-15:45

2 stops17h 35m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£230

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LGW London Gatwick

SJULGW

San Juan Luis Munoz Marin Intl

Wed 9/12

07:00-15:45

2 stops28h 45m

London Gatwick

Wed 31/12

00:00-19:00

Nonstop0h 00m

£230

Flights are sorted by cheapest return flights first.

Deals found on 4/9

Showing 1-10 of 59 resultsSorted by cheapest first

...

Best time to book a flight from Puerto Rico to London

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

SJU-LHR

SJU-LGW

PSE-LGW

SJU-LCY

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

PR0-LON

SJU-LHR

SJU-LGW

PSE-LGW

SJU-LCY

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

Currently, February is the cheapest month in which you can book a flight from Puerto Rico to London (average of £462). Flying from Puerto Rico to London in June is currently the most expensive (average of £854). 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?

Booking 76 days in advance of your planned departure date is, on average, the best time to get cheap flights from Puerto Rico to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Related info for your journey

How long is the flight from Puerto Rico to London?
Airlines like KLM, JetBlue, and Delta fly from Puerto Rico to London in about 16h 20m. The time it takes to get you to your destination can typically vary by up to 5h 45m. The distance from Puerto Rico to London is about 4179 mi. This flight may include one or multiple stops.
What are the most popular routes from Puerto Rico to London?
When deciding which route to take from Puerto Rico to London consider San Juan Luis Munoz Marin Intl - London Heathrow, San Juan Luis Munoz Marin Intl - London City or San Juan Luis Munoz Marin Intl - London Gatwick as they are the most popular.
Can I find deals for flights from Puerto Rico to London that include hotel bookings?
Yes. In addition to deals on Puerto Rico to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Puerto Rico to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Puerto Rico to London.
Can I find deals for business class flights from Puerto Rico to London?
Yes. Cheapflights offers flight deals from Puerto Rico to London 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?
Currently, February is the cheapest month in which you can book a flight from Puerto Rico to London (average of £462). Flying from Puerto Rico to London in June is currently the most expensive (average of £854). 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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Gatwick

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Slough

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

Deals for Puerto Rico to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London from Puerto Rico.

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

Certainly. Search results for flights to London from Puerto Rico shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Not ready to book yet? You can track prices for flights from Puerto Rico to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Puerto Rico to London 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 London

Cheapest flights from Puerto Rico to LondonExplore the most affordable flight options available from Puerto Rico to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 September 2026.

Explore the most affordable flight options available from Puerto Rico to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 September 2026.

Best flights from Puerto Rico to LondonDiscover carefully curated flight deals from Puerto Rico to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 September 2026.

Discover carefully curated flight deals from Puerto Rico to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 September 2026.

Last-minute flights from Puerto Rico to LondonDiscover last-minute flight deals from Puerto Rico to London. Data last updated 7 September 2026 and is based on user searches.

Discover last-minute flight deals from Puerto Rico to London. Data last updated 7 September 2026 and is based on user searches.

One-way flights from Puerto Rico to LondonSearch for one-way flight options from Puerto Rico to London. Find affordable one-way fares based on user searches. Data last updated 7 September 2026.

Search for one-way flight options from Puerto Rico to London. Find affordable one-way fares based on user searches. Data last updated 7 September 2026.

Find flight deals from Puerto Rico to London

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

Best time to book a flight from Puerto Rico to London

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

Cheapflights Insights

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

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

Booking 76 days in advance of your planned departure date is, on average, the best time to get cheap flights from Puerto Rico to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Related info for your journey

How long is the flight from Puerto Rico to London?

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

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

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

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

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

Travelling to a place near London?

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Alternative routes for Puerto Rico to London

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Complete your trip

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Direct flights to England

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

Search flights from Puerto Rico to London by cabin class

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

Other flights to London

Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 7 September 2026.

Puerto Rico and London flights

Browse other Puerto Rico and London flight options. Last updated on 7 September 2026.

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

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

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

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

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Cheapest flights from Puerto Rico to London
Explore the most affordable flight options available from Puerto Rico to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 September 2026.

Best flights from Puerto Rico to London
Discover carefully curated flight deals from Puerto Rico to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 September 2026.

Last-minute flights from Puerto Rico to London
Discover last-minute flight deals from Puerto Rico to London. Data last updated 7 September 2026 and is based on user searches.

One-way flights from Puerto Rico to London
Search for one-way flight options from Puerto Rico to London. Find affordable one-way fares based on user searches. Data last updated 7 September 2026.