What is the cheapest airline that flies from London Heathrow to Puerto Rico?

JetBlue, Avianca, and United Airlines are the most popular carriers operating from London Heathrow to Puerto Rico

Which airlines fly to Puerto Rico?

JetBlue, Icelandair and Iberia are the top three most popular airlines that fly to Puerto Rico from London Heathrow Airport according to our data. JetBlue is the first choice among our users, with 73% of people opting to fly with this airline when travelling to Puerto Rico. Keep in mind that there are 6 different airlines that fly to Puerto Rico on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from London Heathrow Airport to Puerto Rico?

Prices for flights from London Heathrow Airport to Puerto Rico are updated daily.

How many operators does momondo search for flights from London Heathrow Airport to Puerto Rico?

As of June 2026, there are 6 operators available to choose from for flights from London Heathrow Airport to Puerto Rico.

How old do you have to be to fly from London Heathrow Airport to Puerto Rico?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Puerto Rico.

What documentation or ID do you need to fly to Puerto Rico?

The required travel and health documents for your Puerto Rico trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Puerto Rico. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£412 Cheap Flights from London Heathrow Airport to Puerto Rico in 2026

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Find the cheapest flights from London Heathrow Airport to Puerto Rico

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

07:25 - 14:46

LHR

SJU

35h 21m

1 stop

11:45 - 20:45

SJU

LHR

29h 00m

1 stop

£555JetBlue

Tue, 3 Nov - Tue, 17 Nov

09:20 - 00:25

LHR

SJU

19h 05m

1 stop

07:00 - 06:55

SJU

LHR

19h 55m

1 stop

£576JetBlue

Wed, 4 Nov - Thu, 12 Nov

12:20 - 12:23

LHR

SJU

28h 03m

1 stop

17:15 - 20:45

SJU

LHR

23h 30m

1 stop

£585JetBlue

Mon, 16 Nov - Sat, 21 Nov

09:20 - 00:25

LHR

SJU

19h 05m

1 stop

05:30 - 21:40

SJU

LHR

12h 10m

1 stop

£588JetBlue

Wed, 11 Nov - Tue, 24 Nov

09:20 - 00:25

LHR

SJU

19h 05m

1 stop

05:30 - 21:40

SJU

LHR

12h 10m

1 stop

£590JetBlue

Wed, 11 Nov - Tue, 24 Nov

08:15 - 19:32

LHR

SJU

16h 17m

1 stop

06:00 - 20:45

SJU

LHR

33h 45m

1 stop

£594JetBlue

Mon, 21 Sep - Wed, 30 Sep

09:20 - 00:25

LHR

SJU

19h 05m

1 stop

14:41 - 11:30

SJU

LHR

16h 49m

1 stop

£610Multiple Airlines

Wed, 18 Nov - Wed, 25 Nov

07:30 - 23:09

LHR

BQN

20h 39m

2 stops

00:15 - 06:30

BQN

LHR

49h 15m

2 stops

£992United Airlines

Wed, 23 Sep - Sat, 26 Sep

07:30 - 23:09

LHR

BQN

20h 39m

2 stops

00:15 - 06:30

BQN

LHR

49h 15m

2 stops

£1,003United Airlines

Wed, 23 Sep - Sat, 26 Sep

07:30 - 23:09

LHR

BQN

20h 39m

2 stops

00:15 - 06:30

BQN

LHR

49h 15m

2 stops

£1,004United Airlines

Wed, 23 Sep - Sat, 26 Sep

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JetBlue flights from London Heathrow Airport to Puerto Rico

Our best JetBlue deals on London Heathrow Airport to Puerto Rico flight tickets

JetBlue

3 Nov

LHR07:25London Heathrow

35h 21m

1 stop

SJU14:46San Juan Luis Munoz Marin Intl

17 Nov

SJU11:45San Juan Luis Munoz Marin Intl

29h 00m

1 stop

LHR20:45London Heathrow

£555

JetBlue

4 Nov

LHR09:20London Heathrow

19h 05m

1 stop

SJU00:25San Juan Luis Munoz Marin Intl

12 Nov

SJU07:00San Juan Luis Munoz Marin Intl

19h 55m

1 stop

LHR06:55London Heathrow

£576

JetBlue

16 Nov

LHR12:20London Heathrow

28h 03m

1 stop

SJU12:23San Juan Luis Munoz Marin Intl

21 Nov

SJU17:15San Juan Luis Munoz Marin Intl

23h 30m

1 stop

LHR20:45London Heathrow

£585

Avianca flights from London Heathrow Airport to Puerto Rico

Our best Avianca deals on London Heathrow Airport to Puerto Rico flight tickets

Avianca

19 Jun

LHR22:05London Heathrow

18h 20m

1 stop

SJU11:25San Juan Luis Munoz Marin Intl

26 Jun

SJU16:40San Juan Luis Munoz Marin Intl

17h 55m

2 stops

LHR15:35London Heathrow

£1,142

Avianca

19 Jun

LHR22:05London Heathrow

18h 20m

1 stop

SJU11:25San Juan Luis Munoz Marin Intl

26 Jun

SJU16:40San Juan Luis Munoz Marin Intl

41h 55m

2 stops

LHR15:35London Heathrow

£1,144

Avianca

19 Jun

LHR22:05London Heathrow

18h 20m

1 stop

SJU11:25San Juan Luis Munoz Marin Intl

26 Jun

SJU16:40San Juan Luis Munoz Marin Intl

17h 55m

2 stops

LHR15:35London Heathrow

£1,148

momondo 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 - SJU

LHRSJU

London Heathrow

Tue 3/11

07:25-14:46

1 stop35h 21m

San Juan Luis Munoz Marin Intl

Tue 17/11

11:45-20:45

1 stop29h 00m

£555

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 4/11

09:20-00:25

1 stop19h 05m

San Juan Luis Munoz Marin Intl

Thu 12/11

07:00-06:55

1 stop19h 55m

£576

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 16/11

12:20-12:23

1 stop28h 03m

San Juan Luis Munoz Marin Intl

Sat 21/11

17:15-20:45

1 stop23h 30m

£585

Fastest return journey

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 11/11

09:20-00:25

1 stop19h 05m

San Juan Luis Munoz Marin Intl

Tue 24/11

05:30-21:40

1 stop12h 10m

£588

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 11/11

09:20-00:25

1 stop19h 05m

San Juan Luis Munoz Marin Intl

Tue 24/11

05:30-21:40

1 stop12h 10m

£590

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 21/9

08:15-19:32

1 stop16h 17m

San Juan Luis Munoz Marin Intl

Wed 30/9

06:00-20:45

1 stop33h 45m

£594

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 18/11

09:20-00:25

1 stop19h 05m

San Juan Luis Munoz Marin Intl

Wed 25/11

14:41-11:30

1 stop16h 49m

£610

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Wed 23/9

07:30-23:09

2 stops20h 39m

Aguadilla Borinquen

Sat 26/9

00:15-06:30

2 stops49h 15m

£992

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Wed 23/9

07:30-23:09

2 stops20h 39m

Aguadilla Borinquen

Sat 26/9

00:15-06:30

2 stops49h 15m

£1,003

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Wed 23/9

07:30-23:09

2 stops20h 39m

Aguadilla Borinquen

Sat 26/9

00:15-06:30

2 stops49h 15m

£1,004

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Heathrow Airport to Puerto Rico

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Puerto Rico?

In general, October is the cheapest month to fly from London Heathrow Airport to Puerto Rico. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £344. If you don’t want to visit Puerto Rico in October, then you should wait until February to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £366.

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

You are more likely to see cheaper flights to Puerto Rico from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around £691 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Puerto Rico from London Heathrow Airport for as low as £573 on momondo.

Cheap London Heathrow Airport to Puerto Rico flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Puerto Rico

Fastest flight time	16h 17m
Direct flights	None

The fastest flight from London Heathrow Airport to Puerto Rico takes 16h 17m

There are no direct flights from London Heathrow Airport to Puerto Rico. There are no popular flight routes from London Heathrow Airport to Puerto Rico.

Search flight deals

Frequently asked questions about flying from London Heathrow Airport to Puerto Rico

When did momondo last update prices for flights from London Heathrow Airport to Puerto Rico?
Prices for flights from London Heathrow Airport to Puerto Rico are updated daily.
How many operators does momondo search for flights from London Heathrow Airport to Puerto Rico?
As of June 2026, there are 6 operators available to choose from for flights from London Heathrow Airport to Puerto Rico.
How old do you have to be to fly from London Heathrow Airport to Puerto Rico?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Puerto Rico.
What documentation or ID do you need to fly to Puerto Rico?
The required travel and health documents for your Puerto Rico trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Puerto Rico. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from London Heathrow Airport to Puerto Rico

Compare and see reviews for airlines that fly from London Heathrow Airport to Puerto Rico with momondo

Airline	Rating	Free Cancellation	Price
Virgin Atlantic	PriceFrom £333	Free Cancellation	Rating 7.5 690 reviews	Search Virgin Atlantic flights
JetBlue	PriceFrom £436	Free Cancellation	Rating 7.1 2,981 reviews	Search JetBlue flights
Icelandair	PriceFrom £503	Free Cancellation	Rating 7.0 673 reviews	Search Icelandair flights
Avianca	PriceFrom £537	Free Cancellation	Rating 6.5 2,532 reviews	Search Avianca flights
Iberia	PriceFrom £774	Free Cancellation	Rating 7.0 3,234 reviews	Search Iberia flights
British Airways	PriceFrom £837	Free Cancellation	Rating 6.7 8,047 reviews	Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Puerto Rico?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Puerto Rico. momondo saves you time and could save you money on your trip.

Can I find flights from London to Puerto Rico with flexible booking policies on momondo?

All flight searches from London to Puerto Rico on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from London to Puerto Rico?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Puerto Rico.

I’m not ready to book a flight from London to Puerto Rico right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Puerto Rico from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Puerto Rico trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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Find better results for your trip to Puerto Rico

Popular cities

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Other flights to Puerto Rico

Airlines

Cabin classes

Complete your trip

Feeling lucky

Popular Cities in Puerto Rico

Flights to San Juanfrom £555

Flights to Aguadillafrom £885

Cheap flights from London Heathrow Airport to Puerto Rico from £412

Find the cheapest flights from London Heathrow Airport to Puerto Rico

Cheap return flights

Cheap one-way flights

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Big names, great deals

Big names, great deals

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JetBlue flights from London Heathrow Airport to Puerto Rico

Our best JetBlue deals on London Heathrow Airport to Puerto Rico flight tickets

Avianca flights from London Heathrow Airport to Puerto Rico

Our best Avianca deals on London Heathrow Airport to Puerto Rico flight tickets

momondo Fare Finder

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

See travel insights to Puerto Rico from

How to get the cheapest flight ticket from London Heathrow Airport to Puerto Rico

What is the cheapest month to fly to Puerto Rico?

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

What is the cheapest airline that flies from London Heathrow to Puerto Rico?

Which airlines fly to Puerto Rico?

Cheap London Heathrow Airport to Puerto Rico flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Puerto Rico

Fastest flight time

Direct flights

Frequently asked questions about flying from London Heathrow Airport to Puerto Rico

Best airlines flying from London Heathrow Airport to Puerto Rico

Compare and see reviews for airlines that fly from London Heathrow Airport to Puerto Rico with momondo

Why use momondo?

An easier way to manage your Puerto Rico trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Puerto Rico

Popular Cities in Puerto Rico

Popular flights according to clicks in the last 7 days on momondo

London Heathrow Airport flight routes

According to popular flight searches on momondo this year

Puerto Rico flight routes

According to popular flight searches on momondo this year

Fly your favourite airline to Puerto Rico

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Puerto Rico

List of cabin classes available on flights landing in Puerto Rico. Availability may vary depending on flight origin and airline.

Complete your trip to Puerto Rico

Explore popular destinations other users love

According to popular flight searches on momondo this year