How long is the flight from London to Puerto Rico?

There are many flights that can get you from London to Puerto Rico in 21h 19m. Fly via TAP AIR PORTUGAL, United Airlines, or British Airways to get the fastest option. The distance from London to Puerto Rico is about 4224 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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 to Puerto Rico?

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

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

JetBlue, Iberia and Icelandair are the most popular airlines when flying from London to Puerto Rico.

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

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

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

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

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

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

Yes. Cheapflights offers flight deals from London 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.

£275+ Cheap Flights from London to Puerto Rico

Cheap flight deals from London to Puerto Rico

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from London to Puerto Rico
Explore the most affordable flight options available from London to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Thu 1/1014:00 -

1 stop14h 13m

Sun 11/1010:39 -

1 stop18h 21m

Deal found 8/9£482

Fri 4/1212:35 -

1 stop27h 18m

Sat 12/1219:43 -

1 stop32h 32m

Deal found 6/9£499

Thu 5/1114:50 -

2 stops25h 46m

Sun 15/1121:35 -

1 stop30h 20m

Deal found 8/9£525

Thu 29/1009:40 -

1 stop17h 59m

Wed 11/1116:52 -

1 stop15h 43m

Deal found 8/9£569

Thu 12/1109:20 -

1 stop19h 53m

Sat 21/1121:10 -

1 stop32h 20m

Deal found 6/9£573

Mon 2/1112:20 -

1 stop32h 35m

Fri 6/1107:00 -

1 stop19h 55m

Deal found 9/9£573

Fri 9/1008:15 -

1 stop16h 48m

Fri 16/1019:35 -

1 stop29h 55m

Deal found 9/9£574

Tue 6/1008:40 -

1 stop32h 27m

Tue 13/1010:30 -

1 stop29h 15m

Deal found 6/9£582

Tue 10/1108:20 -

1 stop15h 40m

Tue 17/1121:35 -

1 stop18h 00m

Deal found 9/9£583

Sat 19/911:55 -

1 stop30h 44m

Sat 3/1018:55 -

1 stop30h 35m

Deal found 5/9£583

Thu 1/1011:55 -

1 stop33h 17m

Sun 11/1010:30 -

1 stop18h 00m

Deal found 7/9£584

Thu 5/1112:20 -

1 stop32h 35m

Sun 15/1106:30 -

1 stop23h 00m

Deal found 8/9£584

Best flights from London to Puerto Rico
Discover carefully curated flight deals from London to Puerto Rico that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Fri 16/1018:25 -

2 stops30h 05m

Fri 30/1021:35 -

1 stop22h 15m

Deal found 6/9£787

Wed 21/1010:35 -

2 stops29h 54m

Wed 28/1017:40 -

2 stops36h 20m

Deal found 6/9£872

Mon 5/1006:50 -

2 stops21h 19m

Sun 11/1000:15 -

2 stops25h 15m

Deal found 5/9£1,003

Thu 7/106:30 -

2 stops21h 24m

Thu 21/115:14 -

1 stop13h 01m

Deal found 8/9£1,034

Fri 9/1010:50 -

2 stops29h 50m

Mon 19/1010:30 -

2 stops25h 10m

Deal found 6/9£1,093

Tue 19/121:20 -

3 stops30h 30m

Sun 31/116:40 -

2 stops23h 55m

Deal found 9/9£817

Sat 6/312:25 -

2 stops19h 02m

Sat 20/311:30 -

2 stops26h 00m

Deal found 6/9£876

Tue 2/221:20 -

3 stops30h 30m

Sun 7/216:40 -

2 stops23h 55m

Deal found 5/9£822

Thu 7/116:00 -

2 stops36h 16m

Thu 21/115:35 -

2 stops20h 15m

Deal found 8/9£897

Fri 9/1009:30 -

2 stops19h 20m

Mon 19/1013:25 -

1 stop12h 50m

Deal found 5/9£1,031

Tue 2/206:05 -

2 stops20h 32m

Sun 7/215:14 -

1 stop13h 01m

Deal found 5/9£1,041

Wed 25/1118:30 -

2 stops58h 10m

Fri 4/1206:16 -

2 stops35h 19m

Deal found 6/9£922

Fri 25/906:50 -

2 stops22h 00m

Mon 28/915:56 -

1 stop14h 59m

Deal found 7/9£1,041

Fri 23/1016:50 -

2 stops34h 55m

Sun 1/1107:01 -

2 stops22h 14m

Deal found 7/9£969

Fri 25/911:30 -

1 stop12h 20m

Mon 28/906:00 -

2 stops47h 50m

Deal found 6/9£1,077

Thu 22/1017:35 -

2 stops31h 18m

Thu 29/1006:00 -

2 stops23h 55m

Deal found 7/9£1,224

Wed 25/1116:35 -

2 stops60h 05m

Fri 4/1206:16 -

2 stops29h 29m

Deal found 8/9£922

Thu 22/1006:00 -

1 stop14h 25m

Thu 29/1021:35 -

2 stops14h 50m

Deal found 7/9£981

Thu 31/1212:05 -

1 stop14h 17m

Tue 12/117:50 -

1 stop32h 50m

Deal found 9/9£1,091

Thu 7/107:40 -

2 stops18h 57m

Thu 21/121:35 -

1 stop12h 25m

Deal found 5/9£1,114

Thu 31/1210:10 -

2 stops41h 49m

Tue 12/111:06 -

2 stops24h 39m

Deal found 5/9£929

Thu 1/1017:35 -

2 stops30h 59m

Sun 11/1006:00 -

2 stops22h 55m

Deal found 7/9£1,241

Thu 5/1106:50 -

2 stops21h 09m

Sun 15/1118:55 -

2 stops32h 20m

Deal found 8/9£996

Fri 2/1009:50 -

1 stop14h 00m

Mon 5/1017:15 -

1 stop17h 00m

Deal found 6/9£1,125

Thu 22/1013:50 -

2 stops27h 07m

Thu 29/1013:35 -

1 stop16h 50m

Deal found 7/9£1,140

Tue 10/1117:20 -

2 stops31h 28m

Wed 18/1113:55 -

2 stops22h 25m

Deal found 9/9£998

Tue 19/108:50 -

2 stops28h 48m

Sun 31/111:28 -

2 stops17h 22m

Deal found 9/9£1,138

Fri 16/1021:15 -

2 stops55h 34m

Fri 30/1017:40 -

2 stops34h 40m

Deal found 6/9£1,060

Thu 31/1210:45 -

1 stop13h 15m

Tue 12/110:32 -

2 stops18h 43m

Deal found 7/9£1,146

Wed 21/1021:15 -

3 stops31h 34m

Wed 28/1017:40 -

2 stops36h 20m

Deal found 6/9£1,077

Find flight deals from London to Puerto Rico

Round-trip from	£482
One-way from	£275
Popular in	December
Cheapest in	February
Average price	£655

1/10-11/10
2 total stops
32h 34m total
London to Puerto Rico

Search Deals

11/11-31/12
2 total stops
44h 36m total
London to Puerto Rico

Search Deals

Highest demand for flights based on searches. 3% potential increase in price (£19 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 September 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from London 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

Sat 7/11

08:05-20:48

1 stop16h 43m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£288

LondonSan Juan

LGW London Gatwick - SJU San Juan Luis Munoz Marin Intl

LGWSJU

London Gatwick

Sun 15/11

12:35-14:43

1 stop30h 08m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£325

LondonSan Juan

LGW London Gatwick - SJU San Juan Luis Munoz Marin Intl

LGWSJU

London Gatwick

Thu 19/11

11:00-02:50

1 stop19h 50m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£344

LondonSan Juan

STN London Stansted - SJU San Juan Luis Munoz Marin Intl

STNSJU

London Stansted

Sun 15/11

13:35-00:04

3 stops38h 29m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£348

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Sun 15/11

08:15-00:30

1 stop20h 15m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£389

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Wed 11/11

07:25-20:48

1 stop17h 23m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£390

Fastest return journey

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Tue 24/11

07:25-18:40

1 stop15h 15m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£392

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Wed 3/2

09:20-23:50

1 stop18h 30m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£396

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Thu 4/2

09:20-23:50

1 stop18h 30m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£396

LondonSan Juan

STN London Stansted - SJU San Juan Luis Munoz Marin Intl

STNSJU

London Stansted

Sun 7/2

20:00-20:00

2 stops28h 00m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£398

Flights are sorted by cheapest return flights first.

Deals found on 7/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from London to Puerto Rico

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

STN-SJU

LGW-SJU

LHR-BQN

LHR-SJU

LCY-SJU

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 to Puerto Rico

LON-PR0

STN-SJU

LGW-SJU

LHR-BQN

LHR-SJU

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

Currently, February is the cheapest month in which you can book a flight from London to Puerto Rico (average of £524). Flying from London to Puerto Rico in December is currently the most expensive (average of £934). 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 to Puerto Rico?

The price you pay for your flight from London to Puerto Rico may vary depending on when you book. For the best chance of a lower fare, look to book 42 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Puerto Rico

Check out reviews from past customers who have flown with TAP AIR PORTUGAL,JetBlue, andIberia from London to Puerto Rico to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

TAP AIR PORTUGAL

7.2

Good

2,387 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Sergio,Sept 2026

IBZ - LIS

The Boarding process was delayed. Then very slow to get on, so many signs of un-organization. I wouldn't want to fly this airline again...

TAP AIR PORTUGAL

7.2

Good

2,387 reviews

TAP AIR PORTUGAL

7.2

Good

2,387 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Sergio,Sept 2026

IBZ - LIS

The Boarding process was delayed. Then very slow to get on, so many signs of un-organization. I wouldn't want to fly this airline again...

JetBlue

7.1

Good

3,041 reviews

TAP AIR PORTUGAL

7.2

Good

2,387 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Sergio,Sept 2026

IBZ - LIS

The Boarding process was delayed. Then very slow to get on, so many signs of un-organization. I wouldn't want to fly this airline again...

Iberia

7.0

Good

3,252 reviews

TAP AIR PORTUGAL

7.2

Good

2,387 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Sergio,Sept 2026

IBZ - LIS

The Boarding process was delayed. Then very slow to get on, so many signs of un-organization. I wouldn't want to fly this airline again...

Icelandair

6.9

Okay

741 reviews

TAP AIR PORTUGAL

7.2

Good

2,387 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Sergio,Sept 2026

IBZ - LIS

The Boarding process was delayed. Then very slow to get on, so many signs of un-organization. I wouldn't want to fly this airline again...

Avianca

6.5

Okay

2,553 reviews

TAP AIR PORTUGAL

7.2

Good

2,387 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Sergio,Sept 2026

IBZ - LIS

The Boarding process was delayed. Then very slow to get on, so many signs of un-organization. I wouldn't want to fly this airline again...

Related info for your journey

How long is the flight from London to Puerto Rico?
There are many flights that can get you from London to Puerto Rico in 21h 19m. Fly via TAP AIR PORTUGAL, United Airlines, or British Airways to get the fastest option. The distance from London to Puerto Rico is about 4224 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the most popular routes from London to Puerto Rico?
When deciding which route to take from London to Puerto Rico consider London Heathrow - San Juan Luis Munoz Marin Intl, London City - San Juan Luis Munoz Marin Intl or London Gatwick - San Juan Luis Munoz Marin Intl as they are the most popular.
Can I find deals for flights from London to Puerto Rico that include hotel bookings?
Yes. In addition to deals on London to Puerto Rico flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Puerto Rico?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Puerto Rico.
Can I find deals for business class flights from London to Puerto Rico?
Yes. Cheapflights offers flight deals from London 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 to Puerto Rico?
Currently, February is the cheapest month in which you can book a flight from London to Puerto Rico (average of £524). Flying from London to Puerto Rico in December is currently the most expensive (average of £934). 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 London to Puerto Rico

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Manchester to Punta Cana flights

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Heathrow to Roseau flights

Heathrow to Pointe-à-Pitre flights

Birmingham to Montego Bay flights

Top 5 airlines flying from London to Puerto Rico

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£329	Average£1,131	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
JetBlue	Cheapest£414	Average£691	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Icelandair	Cheapest£480	Average£842	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Iberia	Cheapest£836	Average£1,067	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
British Airways	Cheapest£836	Average£1,060	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Puerto Rico from London today with Cheapflights!

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

Millions of users choose and trust Cheapflights to book the best flight deals from London to Puerto Rico for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Puerto Rico, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on London to Puerto Rico flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from London to Puerto Rico from £275

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Puerto Rico

Cheapest flights from London to Puerto RicoExplore the most affordable flight options available from London to Puerto Rico. 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 London to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Best flights from London to Puerto RicoDiscover carefully curated flight deals from London to Puerto Rico 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 London to Puerto Rico 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 London to Puerto RicoDiscover last-minute flight deals from London to Puerto Rico. Data last updated 10 September 2026 and is based on user searches.

Discover last-minute flight deals from London to Puerto Rico. Data last updated 10 September 2026 and is based on user searches.

One-way flights from London to Puerto RicoSearch for one-way flight options from London to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Search for one-way flight options from London to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Find flight deals from London 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 to Puerto Rico that are best for you.

Best time to book a flight from London to Puerto Rico

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

Cheapflights Insights

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

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

The price you pay for your flight from London to Puerto Rico may vary depending on when you book. For the best chance of a lower fare, look to book 42 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Puerto Rico

Check out reviews from past customers who have flown with TAP AIR PORTUGAL,JetBlue, andIberia from London to Puerto Rico to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from London to Puerto Rico?

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

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

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

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

What is the cheapest month to book a flight from London 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 London 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 London to Puerto Rico by cabin class

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

London and Puerto Rico flights

Browse other London and Puerto Rico flight options. Last updated on 10 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

London to Puerto Rico flights

Consider these flights travelling from London to Puerto Rico.

Top 5 airlines flying from London to Puerto Rico

Fly with Cheapflights

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

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

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

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

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Travel Smart

Cheapest flights from London to Puerto Rico
Explore the most affordable flight options available from London to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Best flights from London to Puerto Rico
Discover carefully curated flight deals from London to Puerto Rico 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 London to Puerto Rico
Discover last-minute flight deals from London to Puerto Rico. Data last updated 10 September 2026 and is based on user searches.

One-way flights from London to Puerto Rico
Search for one-way flight options from London to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.