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

JetBlue is the most popular carrier operating from Puerto Rico to London Heathrow

How long does it take to fly to London Heathrow Airport?

If you’re flying from a popular airport in Puerto Rico, such as San Juan or Ponce, and flying into London Heathrow Airport, then you can expect flight times to average 12h 28m and 24h 07m, respectively.

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

Prices for flights from Puerto Rico to London Heathrow Airport were last updated today.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Puerto Rico to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The necessary travel and health documents for your London Heathrow Airport 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.

£224 Cheap Flights from Puerto Rico to London Heathrow Airport in 2026

Find the cheapest flights from Puerto Rico to London

Return

One-way

Last minute

Recent return flight deals from Puerto Rico to London

Enter your travel dates to find the best prices.

08:55 - 13:30PSE Ponce Mercedita-LHR London Heathrow

23h 35m2 stops Orlando Dublin

07:40 - 08:01LHR London Heathrow-PSE Ponce Mercedita

29h 21m2 stops Dublin Orlando

£495Multiple Airlines

Tue, 15 Sep - Tue, 22 Sep

18:35 - 11:40SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

13h 05m1 stop Atlanta Hartsfield-Jackson

20:10 - 17:20LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

25h 10m1 stop New York John F Kennedy Intl

£583Virgin Atlantic

Thu, 26 Nov - Thu, 3 Dec

15:17 - 08:15SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

12h 58m1 stop Miami

11:15 - 21:38LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

14h 23m1 stop Miami

£590Iberia

Thu, 26 Nov - Thu, 3 Dec

06:00 - 20:45SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

33h 45m1 stop New York John F Kennedy Intl

08:15 - 13:39LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

34h 24m1 stop New York John F Kennedy Intl

£599JetBlue

Thu, 24 Sep - Thu, 1 Oct

15:17 - 08:15SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

12h 58m1 stop Miami

11:15 - 21:38LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

14h 23m1 stop Miami

£600Iberia

Thu, 26 Nov - Thu, 3 Dec

21:35 - 14:55SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

13h 20m1 stop Madrid Barajas

10:45 - 20:00LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

13h 15m1 stop Madrid Barajas

£601Iberia

Wed, 11 Nov - Tue, 24 Nov

21:35 - 14:55SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

13h 20m1 stop Madrid Barajas

10:45 - 20:00LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

13h 15m1 stop Madrid Barajas

£602Iberia

Wed, 11 Nov - Tue, 24 Nov

17:50 - 10:50SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

13h 00m1 stop Washington, D.C. Dulles Intl

06:50 - 00:36LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

21h 46m2 stops Brussels Bruxelles-National Newark

£603United Airlines

Mon, 16 Nov - Fri, 20 Nov

17:50 - 10:50SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

13h 00m1 stop Washington, D.C. Dulles Intl

06:50 - 00:36LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

21h 46m2 stops Brussels Bruxelles-National Newark

£603United Airlines

Mon, 16 Nov - Fri, 20 Nov

06:00 - 06:30SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

19h 30m1 stop Boston Logan Intl

08:15 - 13:39LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

34h 24m1 stop New York John F Kennedy Intl

£605JetBlue

Sat, 19 Sep - Sat, 26 Sep

Recent last minute flight deals from Puerto Rico to London

Enter your travel dates to find the best prices.

20:50 - 19:10SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

17h 20m1 stop Madrid Barajas

10:50 - 19:05LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

13h 15m1 stop Madrid Barajas

£609Iberia

Sat, 15 Aug - Sat, 22 Aug

13:13 - 09:30SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

15h 17m1 stop New York John F Kennedy Intl

08:15 - 21:39LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

18h 24m1 stop New York John F Kennedy Intl

£661JetBlue

Sun, 16 Aug - Fri, 28 Aug

05:01 - 09:30SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

23h 29m1 stop New York John F Kennedy Intl

08:15 - 22:45LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

19h 30m1 stop New York John F Kennedy Intl

£673JetBlue

Sun, 16 Aug - Fri, 28 Aug

20:50 - 14:55SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

13h 05m1 stop Madrid Barajas

06:15 - 21:55LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

20h 40m2 stops Madrid Barajas Miami

£705Iberia

Sat, 15 Aug - Sat, 22 Aug

20:45 - 18:15SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

16h 30m1 stop Madrid Barajas

10:50 - 19:10LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

13h 20m1 stop Madrid Barajas

£713Iberia

Tue, 18 Aug - Tue, 25 Aug

14:59 - 13:15SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

17h 16m1 stop Atlanta Hartsfield-Jackson

09:55 - 22:29LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

17h 34m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

£721Multiple Airlines

Sun, 16 Aug - Fri, 28 Aug

06:00 - 06:30SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

19h 30m1 stop Boston Logan Intl

08:15 - 00:13LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

20h 58m1 stop New York John F Kennedy Intl

£723JetBlue

Sun, 16 Aug - Fri, 28 Aug

20:45 - 19:10SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

17h 25m1 stop Madrid Barajas

20:00 - 15:25LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

24h 25m1 stop Madrid Barajas

£760Iberia

Sat, 15 Aug - Mon, 17 Aug

01:00 - 10:40SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

28h 40m2 stops Newark Washington, D.C. Dulles Intl

06:50 - 23:50LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

22h 00m2 stops Brussels Bruxelles-National Newark

£798United Airlines

Fri, 14 Aug - Sat, 22 Aug

13:38 - 12:05SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

17h 27m2 stops Miami Barcelona-El Prat

07:55 - 22:24LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

19h 29m2 stops Edinburgh Turnhouse Philadelphia

£838British Airways

Sun, 16 Aug - Fri, 28 Aug

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

United Airlines flights from Puerto Rico to London Heathrow Airport

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

United Airlines

16 Nov

SJU17:50San Juan Luis Munoz Marin Intl

13h 00m

1 stop

LHR10:50London Heathrow

20 Nov

LHR06:50London Heathrow

21h 46m

2 stops

SJU00:36San Juan Luis Munoz Marin Intl

£603

United Airlines

16 Nov

SJU17:50San Juan Luis Munoz Marin Intl

13h 00m

1 stop

LHR10:50London Heathrow

20 Nov

LHR06:50London Heathrow

21h 46m

2 stops

SJU00:36San Juan Luis Munoz Marin Intl

£603

United Airlines

11 Nov

SJU13:00San Juan Luis Munoz Marin Intl

16h 10m

1 stop

LHR09:10London Heathrow

24 Nov

LHR06:50London Heathrow

21h 46m

2 stops

SJU00:36San Juan Luis Munoz Marin Intl

£610

KLM flights from Puerto Rico to London Heathrow Airport

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

KLM

2 Feb

SJU14:15San Juan Luis Munoz Marin Intl

17h 25m

1 stop

LHR11:40London Heathrow

18 Feb

LHR10:00London Heathrow

17h 50m

2 stops

SJU23:50San Juan Luis Munoz Marin Intl

£609

KLM

11 Nov

SJU14:30San Juan Luis Munoz Marin Intl

16h 15m

2 stops

LHR10:45London Heathrow

24 Nov

LHR08:40London Heathrow

18h 33m

2 stops

SJU23:13San Juan Luis Munoz Marin Intl

£616

KLM

11 Nov

SJU14:30San Juan Luis Munoz Marin Intl

16h 15m

2 stops

LHR10:45London Heathrow

24 Nov

LHR08:40London Heathrow

18h 33m

2 stops

SJU23:13San Juan Luis Munoz Marin Intl

£617

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PonceLondon

PSE Ponce Mercedita - LHR London Heathrow

PSELHR

Ponce Mercedita

Tue 15/9

08:55-13:30

2 stops23h 35m

London Heathrow

Tue 22/9

07:40-08:01

2 stops29h 21m

£495

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Thu 26/11

18:35-11:40

1 stop13h 05m

London Heathrow

Thu 3/12

20:10-17:20

1 stop25h 10m

£583

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Thu 26/11

15:17-08:15

1 stop12h 58m

London Heathrow

Thu 3/12

11:15-21:38

1 stop14h 23m

£590

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Thu 24/9

06:00-20:45

1 stop33h 45m

London Heathrow

Thu 1/10

08:15-13:39

1 stop34h 24m

£599

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Thu 26/11

15:17-08:15

1 stop12h 58m

London Heathrow

Thu 3/12

11:15-21:38

1 stop14h 23m

£600

Fastest return journey

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Wed 11/11

21:35-14:55

1 stop13h 20m

London Heathrow

Tue 24/11

10:45-20:00

1 stop13h 15m

£601

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Wed 11/11

21:35-14:55

1 stop13h 20m

London Heathrow

Tue 24/11

10:45-20:00

1 stop13h 15m

£602

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 16/11

17:50-10:50

1 stop13h 00m

London Heathrow

Fri 20/11

06:50-00:36

2 stops21h 46m

£603

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 16/11

17:50-10:50

1 stop13h 00m

London Heathrow

Fri 20/11

06:50-00:36

2 stops21h 46m

£603

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Sat 19/9

06:00-06:30

1 stop19h 30m

London Heathrow

Sat 26/9

08:15-13:39

1 stop34h 24m

£605

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 Puerto Rico to London Heathrow Airport

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

Other information

What is the cheapest month to fly to London Heathrow Airport?

In general, October is the cheapest month to fly from Puerto Rico to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £534. The month of April is another great option to travel to London Heathrow Airport, with average flight prices from Puerto Rico averaging around £534.

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

You are more likely to see cheaper flights to London Heathrow Airport from Puerto Rico when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £678 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Puerto Rico for as low as £549 on momondo.

Cheap Puerto Rico to London Heathrow Airport flight deals and tips

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

Fastest flight time	12h 28m
Direct flights	None

The fastest flight from Puerto Rico to London Heathrow Airport takes 12h 28m

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

Search flight deals

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

When did momondo last update prices for flights from Puerto Rico to London Heathrow Airport?
Prices for flights from Puerto Rico to London Heathrow Airport were last updated today.
How old do you have to be to fly from Puerto Rico to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Puerto Rico to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The necessary travel and health documents for your London Heathrow Airport 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.

Eastbourne

Wembley

Gatwick

Milton Keynes

Stratford-upon-Avon

Luton

Southend-on-Sea

Slough

Northampton

Ipswich

Maidstone

Swindon

Folkestone

Ilford

Hastings

Poole

Canterbury

Chichester

Hayes

Guildford

Why use momondo?

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

It is quick and easy to find Puerto Rico to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

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

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

momondo helps you find the best flight between Puerto Rico and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Puerto Rico and alert you when they change.