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

Avianca, JetBlue, and TAP AIR PORTUGAL are the most popular carriers operating from London to Puerto Rico

Which airlines fly to Puerto Rico?

JetBlue, Iberia and Icelandair are the top three most popular airlines that fly to Puerto Rico from London according to our data. JetBlue is the first choice among our users, with 65% of people opting to fly with this airline when travelling to Puerto Rico. Keep in mind that there are 7 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 to Puerto Rico?

Prices for flights from London to Puerto Rico are refreshed on a daily basis.

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

As of April 2026, there are 7 operators available to choose from for flights from London to Puerto Rico.

How old do you have to be to fly from London 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 to Puerto Rico.

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

The necessary travel and health documents for your Puerto Rico trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£338 Cheap Flights from London to Puerto Rico in 2026

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Find the cheapest flights from London to Puerto Rico

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

12:20 - 21:42

LGW

SJU

14h 22m

1 stop

05:01 - 09:35

SJU

LGW

23h 34m

1 stop

£610JetBlue

Thu, 4 Jun - Tue, 9 Jun

12:20 - 21:42

LGW

SJU

14h 22m

1 stop

05:01 - 09:35

SJU

LGW

23h 34m

1 stop

£627JetBlue

Mon, 1 Jun - Sun, 7 Jun

08:20 - 18:50

STN

SJU

15h 30m

1 stop

20:40 - 20:20

SJU

STN

18h 40m

1 stop

£651Multiple Airlines

Wed, 3 Jun - Wed, 10 Jun

08:20 - 18:50

STN

SJU

15h 30m

1 stop

20:40 - 20:20

SJU

STN

18h 40m

1 stop

£653Multiple Airlines

Wed, 3 Jun - Wed, 10 Jun

07:30 - 23:09

LHR

BQN

20h 39m

2 stops

00:15 - 06:55

BQN

LHR

25h 40m

2 stops

£1,138United Airlines

Thu, 11 Jun - Sun, 14 Jun

09:30 - 23:09

LHR

BQN

18h 39m

2 stops

00:15 - 21:35

BQN

LHR

16h 20m

1 stop

£1,139United Airlines

Thu, 11 Jun - Sun, 14 Jun

09:50 - 18:50

LCY

SJU

14h 00m

1 stop

20:35 - 15:15

SJU

LCY

13h 40m

1 stop

£1,184British Airways

Thu, 18 Jun - Sun, 21 Jun

09:35 - 18:50

LCY

SJU

14h 15m

1 stop

20:25 - 15:15

SJU

LCY

13h 50m

1 stop

£1,202Iberia

Wed, 10 Jun - Tue, 8 Sep

09:35 - 18:50

LCY

SJU

14h 15m

1 stop

17:15 - 15:15

SJU

LCY

17h 00m

1 stop

£1,215Iberia

Wed, 10 Jun - Tue, 8 Sep

09:50 - 18:50

LCY

SJU

14h 00m

1 stop

20:25 - 15:15

SJU

LCY

13h 50m

1 stop

£1,216British Airways

Fri, 3 Jul - Thu, 16 Jul

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JetBlue flights from London to Puerto Rico

Our best JetBlue deals on London to Puerto Rico flight tickets

JetBlue

2 Jun

LHR11:55London Heathrow

15h 58m

1 stop

SJU22:53San Juan Luis Munoz Marin Intl

13 Jun

SJU15:34San Juan Luis Munoz Marin Intl

12h 56m

1 stop

LHR09:30London Heathrow

£582

JetBlue

2 Sept

LGW12:20London Gatwick

14h 12m

1 stop

SJU21:32San Juan Luis Munoz Marin Intl

7 Sept

SJU16:55San Juan Luis Munoz Marin Intl

11h 40m

1 stop

LGW09:35London Gatwick

£583

JetBlue

3 Jun

LHR11:55London Heathrow

15h 58m

1 stop

SJU22:53San Juan Luis Munoz Marin Intl

14 Jun

SJU13:12San Juan Luis Munoz Marin Intl

15h 18m

1 stop

LHR09:30London Heathrow

£587

TAP AIR PORTUGAL flights from London to Puerto Rico

Our best TAP AIR PORTUGAL deals on London to Puerto Rico flight tickets

TAP AIR PORTUGAL

20 Sept

LGW10:35London Gatwick

31h 33m

2 stops

SJU13:08San Juan Luis Munoz Marin Intl

6 Oct

SJU10:30San Juan Luis Munoz Marin Intl

24h 05m

2 stops

LGW15:35London Gatwick

£739

TAP AIR PORTUGAL

20 Sept

LGW10:35London Gatwick

31h 33m

2 stops

SJU13:08San Juan Luis Munoz Marin Intl

5 Oct

SJU10:30San Juan Luis Munoz Marin Intl

24h 05m

2 stops

LGW15:35London Gatwick

£759

TAP AIR PORTUGAL

17 Oct

LGW12:05London Gatwick

40h 53m

2 stops

SJU23:58San Juan Luis Munoz Marin Intl

23 Oct

SJU06:12San Juan Luis Munoz Marin Intl

22h 33m

2 stops

LGW09:45London Gatwick

£779

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 4/6

12:20-21:42

1 stop14h 22m

San Juan Luis Munoz Marin Intl

Tue 9/6

05:01-09:35

1 stop23h 34m

£610

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 1/6

12:20-21:42

1 stop14h 22m

San Juan Luis Munoz Marin Intl

Sun 7/6

05:01-09:35

1 stop23h 34m

£627

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Wed 3/6

08:20-18:50

1 stop15h 30m

San Juan Luis Munoz Marin Intl

Wed 10/6

20:40-20:20

1 stop18h 40m

£651

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Wed 3/6

08:20-18:50

1 stop15h 30m

San Juan Luis Munoz Marin Intl

Wed 10/6

20:40-20:20

1 stop18h 40m

£653

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Thu 11/6

07:30-23:09

2 stops20h 39m

Aguadilla Borinquen

Sun 14/6

00:15-06:55

2 stops25h 40m

£1,138

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Thu 11/6

09:30-23:09

2 stops18h 39m

Aguadilla Borinquen

Sun 14/6

00:15-21:35

1 stop16h 20m

£1,139

Fastest return journey

LondonSan Juan

LCY - SJU

LCYSJU

London City

Thu 18/6

09:50-18:50

1 stop14h 00m

San Juan Luis Munoz Marin Intl

Sun 21/6

20:35-15:15

1 stop13h 40m

£1,184

LondonSan Juan

LCY - SJU

LCYSJU

London City

Wed 10/6

09:35-18:50

1 stop14h 15m

San Juan Luis Munoz Marin Intl

Tue 8/9

20:25-15:15

1 stop13h 50m

£1,202

LondonSan Juan

LCY - SJU

LCYSJU

London City

Wed 10/6

09:35-18:50

1 stop14h 15m

San Juan Luis Munoz Marin Intl

Tue 8/9

17:15-15:15

1 stop17h 00m

£1,215

LondonSan Juan

LCY - SJU

LCYSJU

London City

Fri 3/7

09:50-18:50

1 stop14h 00m

San Juan Luis Munoz Marin Intl

Thu 16/7

20:25-15:15

1 stop13h 50m

£1,216

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 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, July is the cheapest month to fly from London to Puerto Rico. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £140. If you don’t want to visit Puerto Rico in July, then you should wait until June to fly from London, when ticket prices are also cheap, with an average price of £182.

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

You are more likely to see cheaper flights to Puerto Rico from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around £657 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 for as low as £519 on momondo.

Cheap London to Puerto Rico flight deals and tips

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

Fastest flight time	13h 50m
Direct flights	None

The fastest flight from London to Puerto Rico takes 13h 50m

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

Search flight deals

Frequently asked questions about flying from London to Puerto Rico

When did momondo last update prices for flights from London to Puerto Rico?
Prices for flights from London to Puerto Rico are refreshed on a daily basis.
How many operators does momondo search for flights from London to Puerto Rico?
As of April 2026, there are 7 operators available to choose from for flights from London to Puerto Rico.
How old do you have to be to fly from London 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 to Puerto Rico.
What documentation or ID do you need to fly to Puerto Rico?
The necessary travel and health documents for your Puerto Rico trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from London to Puerto Rico

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

Airline	Rating	Free Cancellation	Price
Virgin Atlantic	PriceFrom £331	Free Cancellation	Rating 7.4 688 reviews	Search Virgin Atlantic flights
JetBlue	PriceFrom £419	Free Cancellation	Rating 7.2 2,967 reviews	Search JetBlue flights
Finnair	PriceFrom £486	Free Cancellation	Rating 7.6 1,392 reviews	Search Finnair flights
Icelandair	PriceFrom £491	Free Cancellation	Rating 7.0 646 reviews	Search Icelandair flights
Avianca	PriceFrom £534	Free Cancellation	Rating 6.5 2,517 reviews	Search Avianca flights
British Airways	PriceFrom £536	Free Cancellation	Rating 6.7 7,937 reviews	Search British Airways flights
Iberia	PriceFrom £580	Free Cancellation	Rating 7.0 3,204 reviews	Search Iberia flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Puerto Rico for you.

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

Yes. momondo allows you to filter the results for London to Puerto Rico flights to just show those with flexible booking policies.

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

Once you have performed a search for London to Puerto Rico flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from London to Puerto Rico now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Puerto Rico and let you know when they 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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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 £610

Flights to Aguadillafrom £855

Cheap flights from London to Puerto Rico from £338

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Puerto Rico departing on 15/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from London to Puerto Rico

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Big names, great deals

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JetBlue flights from London to Puerto Rico

Our best JetBlue deals on London to Puerto Rico flight tickets

TAP AIR PORTUGAL flights from London to Puerto Rico

Our best TAP AIR PORTUGAL deals on London to Puerto Rico flight tickets

momondo Fare Finder

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

See travel insights to Puerto Rico from

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

What is the cheapest month to fly to Puerto Rico?

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

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

Which airlines fly to Puerto Rico?

Cheap London to Puerto Rico flight deals and tips

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

Fastest flight time

Direct flights

Frequently asked questions about flying from London to Puerto Rico

Best airlines flying from London to Puerto Rico

Compare and see reviews for airlines that fly from London 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 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