How long does it take to fly to London?

Flight times from Puerto Rico to London vary, but if you’re flying out of San Juan and flying into London Heathrow Airport (one of the most popular routes), then the duration is 12h 25m on average. Another popular route from Puerto Rico to London is flying from Ponce to London Heathrow Airport, which will take roughly 21h 12m. Keep in mind that layovers or delays could extend your travel time.

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

United Airlines is the most popular carrier operating from Puerto Rico to London

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

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

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

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.

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

The necessary travel and health documents for your London 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.

£200 Cheap Flights from Puerto Rico to London in 2026/27

Find the cheapest flights from Puerto Rico to London

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Recent return flight deals from Puerto Rico to London

Enter your travel dates to find the best prices.

16:20 - 11:40SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

15h 20m1 stop Atlanta Hartsfield-Jackson

11:35 - 16:54LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

33h 19m1 stop New York John F Kennedy Intl

£507Virgin Atlantic

Thu, 26 Nov - Thu, 3 Dec

14:27 - 07:50SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

12h 23m1 stop Philadelphia

11:25 - 09:46LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

26h 21m2 stops Madrid Barajas Miami

£508British Airways

Wed, 21 Oct - Wed, 28 Oct

18:10 - 17:15SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

19h 05m1 stop Madrid Barajas

08:25 - 20:00LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

15h 35m1 stop Madrid Barajas

£516Iberia

Wed, 11 Nov - Tue, 24 Nov

18:20 - 14:35SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

16h 15m1 stop Bogotá El Dorado

21:35 - 16:55LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

23h 20m1 stop Bogotá El Dorado

£516Avianca

Mon, 16 Nov - Fri, 20 Nov

18:35 - 15:35SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

16h 00m1 stop Bogotá El Dorado

21:35 - 16:55LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

23h 20m1 stop Bogotá El Dorado

£517Avianca

Wed, 21 Oct - Wed, 28 Oct

18:35 - 15:35SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

16h 00m1 stop Bogotá El Dorado

22:05 - 17:10LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

24h 05m1 stop Bogotá El Dorado

£518Avianca

Fri, 9 Oct - Tue, 20 Oct

12:50 - 14:35SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

21h 45m1 stop Bogotá El Dorado

21:35 - 16:55LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

23h 20m1 stop Bogotá El Dorado

£519Avianca

Thu, 5 Nov - Tue, 10 Nov

18:10 - 13:30SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

15h 20m1 stop Madrid Barajas

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

14h 23m1 stop Miami

£519Iberia

Thu, 26 Nov - Thu, 3 Dec

18:20 - 14:35SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

16h 15m1 stop Bogotá El Dorado

21:35 - 11:25LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

17h 50m1 stop Bogotá El Dorado

£520Avianca

Wed, 4 Nov - Wed, 11 Nov

18:20 - 14:35SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

16h 15m1 stop Bogotá El Dorado

21:35 - 11:25LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

17h 50m1 stop Bogotá El Dorado

£521Avianca

Fri, 26 Feb - Fri, 12 Mar

Recent last minute flight deals from Puerto Rico to London

Enter your travel dates to find the best prices.

18:35 - 15:35SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

16h 00m1 stop Bogotá El Dorado

22:05 - 17:10LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

24h 05m1 stop Bogotá El Dorado

£518Avianca

Sun, 27 Sep - Tue, 29 Sep

07:00 - 11:35SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

23h 35m1 stop Houston George Bush Intcntl

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

22h 00m2 stops Brussels Bruxelles-National Newark

£537United Airlines

Sun, 27 Sep - Tue, 29 Sep

07:00 - 20:40SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

32h 40m2 stops Houston George Bush Intcntl Newark

17:55 - 23:50LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

34h 55m2 stops Brussels Bruxelles-National Newark

£541United Airlines

Sun, 27 Sep - Tue, 29 Sep

15:56 - 08:30SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

35h 34m1 stop Chicago O'Hare Intl

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

22h 00m2 stops Brussels Bruxelles-National Newark

£572United Airlines

Fri, 25 Sep - Mon, 28 Sep

13:16 - 06:45SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

12h 29m1 stop New York John F Kennedy Intl

12:50 - 23:44LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

15h 54m1 stop New York John F Kennedy Intl

£627Virgin Atlantic

Mon, 28 Sep - Tue, 13 Oct

13:25 - 07:15SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

12h 50m1 stop Newark

06:50 - 11:57LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

34h 07m2 stops Brussels Bruxelles-National Newark

£634United Airlines

Mon, 28 Sep - Tue, 13 Oct

13:00 - 09:30SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

15h 30m1 stop New York John F Kennedy Intl

08:15 - 19:53LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

16h 38m1 stop New York John F Kennedy Intl

£636JetBlue

Fri, 25 Sep - Sun, 18 Oct

13:25 - 10:40SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

16h 15m2 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

£638United Airlines

Mon, 28 Sep - Tue, 13 Oct

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

17h 16m1 stop Atlanta Hartsfield-Jackson

12:50 - 23:49LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

15h 59m1 stop New York John F Kennedy Intl

£656KLM

Fri, 25 Sep - Mon, 28 Sep

14:59 - 12:05SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

16h 06m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl

17:45 - 12:05LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

23h 20m1 stop New York John F Kennedy Intl

£660Delta

Fri, 25 Sep - Sun, 18 Oct

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Iberia flights from Puerto Rico to London

Our best Iberia deals on Puerto Rico to London flight tickets

Iberia

11 Nov

SJU18:10San Juan Luis Munoz Marin Intl

19h 05m

1 stop

LHR17:15London Heathrow

24 Nov

LHR08:25London Heathrow

15h 35m

1 stop

SJU20:00San Juan Luis Munoz Marin Intl

£516

Iberia

26 Nov

SJU18:10San Juan Luis Munoz Marin Intl

15h 20m

1 stop

LHR13:30London Heathrow

3 Dec

LHR11:15London Heathrow

14h 23m

1 stop

SJU21:38San Juan Luis Munoz Marin Intl

£519

Iberia

16 Nov

SJU18:55San Juan Luis Munoz Marin Intl

12h 45m

1 stop

LHR11:40London Heathrow

20 Nov

LHR10:45London Heathrow

13h 15m

1 stop

SJU20:00San Juan Luis Munoz Marin Intl

£547

Avianca flights from Puerto Rico to London

Our best Avianca deals on Puerto Rico to London flight tickets

Avianca

16 Nov

SJU18:20San Juan Luis Munoz Marin Intl

16h 15m

1 stop

LHR14:35London Heathrow

20 Nov

LHR21:35London Heathrow

23h 20m

1 stop

SJU16:55San Juan Luis Munoz Marin Intl

£516

Avianca

21 Oct

SJU18:35San Juan Luis Munoz Marin Intl

16h 00m

1 stop

LHR15:35London Heathrow

28 Oct

LHR21:35London Heathrow

23h 20m

1 stop

SJU16:55San Juan Luis Munoz Marin Intl

£517

Avianca

27 Sept

SJU18:35San Juan Luis Munoz Marin Intl

16h 00m

1 stop

LHR15:35London Heathrow

29 Sept

LHR22:05London Heathrow

24h 05m

1 stop

SJU17:10San Juan Luis Munoz Marin Intl

£518

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Thu 26/11

16:20-11:40

1 stop15h 20m

London Heathrow

Thu 3/12

11:35-16:54

1 stop33h 19m

£507

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Wed 21/10

14:27-07:50

1 stop12h 23m

London Heathrow

Wed 28/10

11:25-09:46

2 stops26h 21m

£508

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Wed 11/11

18:10-17:15

1 stop19h 05m

London Heathrow

Tue 24/11

08:25-20:00

1 stop15h 35m

£516

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 16/11

18:20-14:35

1 stop16h 15m

London Heathrow

Fri 20/11

21:35-16:55

1 stop23h 20m

£516

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Wed 21/10

18:35-15:35

1 stop16h 00m

London Heathrow

Wed 28/10

21:35-16:55

1 stop23h 20m

£517

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Fri 9/10

18:35-15:35

1 stop16h 00m

London Heathrow

Tue 20/10

22:05-17:10

1 stop24h 05m

£518

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Thu 5/11

12:50-14:35

1 stop21h 45m

London Heathrow

Tue 10/11

21:35-16:55

1 stop23h 20m

£519

Fastest return journey

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Thu 26/11

18:10-13:30

1 stop15h 20m

London Heathrow

Thu 3/12

11:15-21:38

1 stop14h 23m

£519

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Wed 4/11

18:20-14:35

1 stop16h 15m

London Heathrow

Wed 11/11

21:35-11:25

1 stop17h 50m

£520

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Fri 26/2

18:20-14:35

1 stop16h 15m

London Heathrow

Fri 12/3

21:35-11:25

1 stop17h 50m

£521

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

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?

The cheapest month to fly to London from Puerto Rico is in January. Flight prices, which tend to average around £454, are often lower during this time because this is during the off-season. The month of February is another great option to travel to London, with average flight prices from Puerto Rico averaging around £479.

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

You are more likely to see cheaper flights to London from Puerto Rico when booking weeks ahead of your departure date. In general, you can expect to find flights to London 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 London from Puerto Rico for as low as £551 on momondo.

Can stopping save me money on Puerto Rico to London flights?

You could potentially save up to 64% on your flight if you consider stops on a Puerto Rico to London flight.

Cheap Puerto Rico to London flight deals and tips

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

Best price found	£200
Fastest flight time	11h 55m
Direct flights	None

The best one-way flight to London from Puerto Rico in the past 72 hours is £200. The best return flight deal from Puerto Rico to London found on momondo in the last 72 hours is £507.

The fastest flight from Puerto Rico to London takes 11h 55m

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

Search flight deals

Frequently asked questions about flying from Puerto Rico to London

When did momondo last update prices for flights from Puerto Rico to London?
Prices for flights from Puerto Rico to London were last updated today.
How old do you have to be to fly from Puerto Rico to London?
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.
What documentation or ID do you need to fly to London?
The necessary travel and health documents for your London 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

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Gatwick

Milton Keynes

Southend-on-Sea

Luton

Slough

Ipswich

Maidstone

Folkestone

Hastings

Ilford

Canterbury

Chichester

Hayes

Bedford

Guildford

Colchester

Harlow

Chelmsford

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Puerto Rico.

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

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

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

Once all potential Puerto Rico to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to London from Puerto Rico. 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.

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Cheap flights from Puerto Rico to London from £200

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Puerto Rico to London departing on 18/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Recent return flight deals from Puerto Rico to London

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Iberia flights from Puerto Rico to London

Our best Iberia deals on Puerto Rico to London flight tickets

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Our best Avianca deals on Puerto Rico to London flight tickets

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

What is the cheapest month to fly to London?

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

Can stopping save me money on Puerto Rico to London flights?

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

How long does it take to fly to London?

Cheap Puerto Rico to London flight deals and tips

Best price found

Fastest flight time

Direct flights

Frequently asked questions about flying from Puerto Rico to London

Travelling to a place near London?

Why use momondo?

An easier way to manage your London 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 the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London

Cabin classes currently available on flights to London

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

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