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

JetBlue, TAP AIR PORTUGAL, and British Airways are the most popular carriers operating from London 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 according to our data. JetBlue is the first choice among our users, with 74% of people opting to fly with this airline when travelling to Puerto Rico. Keep in mind that there are 5 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 July 2026, there are 5 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.

£311 Cheap Flights from London to Puerto Rico in 2026

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Find the cheapest flights from London to Puerto Rico

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

14:00 - 13:16

LGW

SJU

28h 16m

1 stop

09:03 - 10:00

SJU

LGW

19h 57m

1 stop

£501Multiple Airlines

Fri, 11 Sep - Mon, 28 Sep

14:00 - 01:50

LGW

SJU

16h 50m

1 stop

18:42 - 10:00

SJU

LGW

34h 18m

1 stop

£539Multiple Airlines

Wed, 30 Sep - Sun, 4 Oct

08:15 - 19:32

LHR

SJU

16h 17m

1 stop

13:00 - 20:45

SJU

LHR

26h 45m

1 stop

£555JetBlue

Tue, 22 Sep - Wed, 30 Sep

08:15 - 19:32

LHR

SJU

16h 17m

1 stop

10:30 - 20:45

SJU

LHR

29h 15m

1 stop

£556JetBlue

Wed, 30 Sep - Sun, 4 Oct

14:00 - 01:50

LGW

SJU

16h 50m

1 stop

21:05 - 16:50

SJU

LGW

38h 45m

2 stops

£558Multiple Airlines

Wed, 9 Sep - Wed, 16 Sep

09:15 - 23:50

LCY

SJU

19h 35m

2 stops

07:00 - 17:55

SJU

LCY

29h 55m

2 stops

£981Lufthansa

Tue, 22 Sep - Wed, 30 Sep

07:50 - 16:40

LCY

SJU

12h 50m

1 stop

21:35 - 14:05

SJU

LCY

12h 30m

1 stop

£1,009British Airways

Wed, 4 Nov - Wed, 11 Nov

08:50 - 23:47

LCY

SJU

18h 57m

2 stops

12:55 - 08:50

SJU

LCY

15h 55m

2 stops

£1,025British Airways

Tue, 17 Nov - Mon, 23 Nov

15:20 - 16:11

LHR

MAZ

29h 51m

2 stops

13:19 - 21:35

MAZ

LHR

27h 16m

2 stops

£1,309United Airlines

Wed, 30 Sep - Sun, 4 Oct

16:00 - 15:49

LHR

MAZ

27h 49m

2 stops

13:25 - 07:40

MAZ

LHR

38h 15m

2 stops

£1,497United Airlines

Wed, 4 Nov - Mon, 16 Nov

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LOT flights from London to Puerto Rico

Our best LOT deals on London to Puerto Rico flight tickets

LOT

19 Jul

LHR06:30London Heathrow

22h 43m

2 stops

SJU00:13San Juan Luis Munoz Marin Intl

23 Aug

SJU08:03San Juan Luis Munoz Marin Intl

28h 07m

2 stops

LHR17:10London Heathrow

£1,188

LOT

19 Jul

LHR06:30London Heathrow

22h 43m

2 stops

SJU00:13San Juan Luis Munoz Marin Intl

23 Aug

SJU08:03San Juan Luis Munoz Marin Intl

28h 07m

2 stops

LHR17:10London Heathrow

£1,238

Iberia flights from London to Puerto Rico

Our best Iberia deals on London to Puerto Rico flight tickets

Iberia

19 Jul

LHR12:15London Heathrow

14h 44m

1 stop

SJU21:59San Juan Luis Munoz Marin Intl

23 Aug

SJU19:24San Juan Luis Munoz Marin Intl

33h 01m

1 stop

LHR09:25London Heathrow

£1,018

Iberia

19 Jul

LHR12:15London Heathrow

14h 44m

1 stop

SJU21:59San Juan Luis Munoz Marin Intl

23 Aug

SJU19:24San Juan Luis Munoz Marin Intl

33h 01m

1 stop

LHR09:25London Heathrow

£1,019

Iberia

19 Jul

LHR12:15London Heathrow

14h 44m

1 stop

SJU21:59San Juan Luis Munoz Marin Intl

23 Aug

SJU19:24San Juan Luis Munoz Marin Intl

33h 01m

1 stop

LHR09:25London Heathrow

£1,021

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 11/9

14:00-13:16

1 stop28h 16m

San Juan Luis Munoz Marin Intl

Mon 28/9

09:03-10:00

1 stop19h 57m

£501

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 30/9

14:00-01:50

1 stop16h 50m

San Juan Luis Munoz Marin Intl

Sun 4/10

18:42-10:00

1 stop34h 18m

£539

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 22/9

08:15-19:32

1 stop16h 17m

San Juan Luis Munoz Marin Intl

Wed 30/9

13:00-20:45

1 stop26h 45m

£555

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 30/9

08:15-19:32

1 stop16h 17m

San Juan Luis Munoz Marin Intl

Sun 4/10

10:30-20:45

1 stop29h 15m

£556

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 9/9

14:00-01:50

1 stop16h 50m

San Juan Luis Munoz Marin Intl

Wed 16/9

21:05-16:50

2 stops38h 45m

£558

LondonSan Juan

LCY - SJU

LCYSJU

London City

Tue 22/9

09:15-23:50

2 stops19h 35m

San Juan Luis Munoz Marin Intl

Wed 30/9

07:00-17:55

2 stops29h 55m

£981

Fastest return journey

LondonSan Juan

LCY - SJU

LCYSJU

London City

Wed 4/11

07:50-16:40

1 stop12h 50m

San Juan Luis Munoz Marin Intl

Wed 11/11

21:35-14:05

1 stop12h 30m

£1,009

LondonSan Juan

LCY - SJU

LCYSJU

London City

Tue 17/11

08:50-23:47

2 stops18h 57m

San Juan Luis Munoz Marin Intl

Mon 23/11

12:55-08:50

2 stops15h 55m

£1,025

LondonMayagüez

LHR - MAZ

LHRMAZ

London Heathrow

Wed 30/9

15:20-16:11

2 stops29h 51m

Mayagüez Eugenio M De Hostos

Sun 4/10

13:19-21:35

2 stops27h 16m

£1,309

LondonMayagüez

LHR - MAZ

LHRMAZ

London Heathrow

Wed 4/11

16:00-15:49

2 stops27h 49m

Mayagüez Eugenio M De Hostos

Mon 16/11

13:25-07:40

2 stops38h 15m

£1,497

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, February 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 £350. If you don’t want to visit Puerto Rico in February, then you should wait until January to fly from London, when ticket prices are also cheap, with an average price of £369.

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 £695 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 £603 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	12h 15m
Direct flights	None

The fastest flight from London to Puerto Rico takes 12h 15m

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 July 2026, there are 5 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 £333	Free Cancellation	Rating 7.5 693 reviews	Search Virgin Atlantic flights
JetBlue	PriceFrom £434	Free Cancellation	Rating 7.1 3,011 reviews	Search JetBlue flights
Icelandair	PriceFrom £494	Free Cancellation	Rating 7.0 704 reviews	Search Icelandair flights
Iberia	PriceFrom £774	Free Cancellation	Rating 7.0 3,254 reviews	Search Iberia flights
British Airways	PriceFrom £846	Free Cancellation	Rating 6.7 8,106 reviews	Search British Airways 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.

Start using Trips

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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 £539

Flights to Aguadillafrom £723

Cheap flights from London to Puerto Rico from £311

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 26/8. 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

Cheap return flights

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Big names, great deals

Big names, great deals

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Filter for what you want

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Price Alerts

LOT flights from London to Puerto Rico

Our best LOT deals on London to Puerto Rico flight tickets

Iberia flights from London to Puerto Rico

Our best Iberia 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