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 30m on average. Another popular route from Puerto Rico to London is flying from Ponce to London Heathrow Airport, which will take roughly 22h 55m. Keep in mind that layovers or delays could extend your travel time.

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

JetBlue, Avianca, and United Airlines are the most popular carriers 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.

£196 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.

16:55 - 07:55SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

35h 00m1 stop Chicago O'Hare Intl

06:50 - 13:32LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

34h 42m2 stops Brussels Bruxelles-National Newark

£515United Airlines

Tue, 1 Dec - Fri, 4 Dec

16:55 - 07:55SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

35h 00m1 stop Chicago O'Hare Intl

06:50 - 13:32LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

34h 42m2 stops Brussels Bruxelles-National Newark

£528United Airlines

Mon, 1 Feb - Thu, 4 Feb

16:55 - 07:55SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

35h 00m1 stop Chicago O'Hare Intl

06:50 - 13:32LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

34h 42m2 stops Brussels Bruxelles-National Newark

£529United Airlines

Mon, 1 Feb - Thu, 4 Feb

15:14 - 08:15SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

13h 01m1 stop Miami

08:45 - 20:00LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

15h 15m1 stop Madrid Barajas

£535Iberia

Fri, 15 Jan - Sun, 24 Jan

15:14 - 08:15SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

13h 01m1 stop Miami

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

18h 00m1 stop Madrid Barajas

£535Iberia

Thu, 14 Jan - Sat, 23 Jan

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

£543Avianca

Tue, 1 Dec - Fri, 4 Dec

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

£543Avianca

Mon, 23 Nov - Mon, 30 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

£543Avianca

Thu, 26 Nov - Mon, 30 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

£544Avianca

Sun, 22 Nov - Mon, 30 Nov

07:30 - 06:25SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

17h 55m1 stop Atlanta Hartsfield-Jackson

08:55 - 23:19LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

19h 24m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson

£544Virgin Atlantic

Mon, 29 Mar - Mon, 5 Apr

Recent last minute 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

06:30 - 23:15LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

20h 45m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

£530Virgin Atlantic

Wed, 11 Nov - Wed, 18 Nov

18:55 - 12:05SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

13h 10m1 stop Miami

06:15 - 16:40LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

14h 25m1 stop Madrid Barajas

£530Iberia

Wed, 11 Nov - Wed, 18 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

£541Avianca

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

£543Avianca

Fri, 13 Nov - Wed, 25 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

£543Avianca

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

£544Avianca

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

£544Avianca

Fri, 13 Nov - Wed, 25 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

£544Avianca

Fri, 13 Nov - Wed, 18 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

£544Avianca

Mon, 16 Nov - Fri, 20 Nov

21:35 - 14:00SJU San Juan Luis Munoz Marin Intl-LCY London City

12h 25m1 stop Madrid Barajas

07:40 - 16:40LCY London City-SJU San Juan Luis Munoz Marin Intl

13h 00m1 stop Madrid Barajas

£549Iberia

Wed, 11 Nov - Wed, 18 Nov

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United Airlines flights from Puerto Rico to London

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

United Airlines

1 Dec

SJU16:55San Juan Luis Munoz Marin Intl

35h 00m

1 stop

LHR07:55London Heathrow

4 Dec

LHR06:50London Heathrow

34h 42m

2 stops

SJU13:32San Juan Luis Munoz Marin Intl

£515

United Airlines

1 Feb

SJU16:55San Juan Luis Munoz Marin Intl

35h 00m

1 stop

LHR07:55London Heathrow

4 Feb

LHR06:50London Heathrow

34h 42m

2 stops

SJU13:32San Juan Luis Munoz Marin Intl

£528

United Airlines

1 Feb

SJU16:55San Juan Luis Munoz Marin Intl

35h 00m

1 stop

LHR07:55London Heathrow

4 Feb

LHR06:50London Heathrow

34h 42m

2 stops

SJU13:32San Juan Luis Munoz Marin Intl

£529

Avianca flights from Puerto Rico to London

Our best Avianca deals on Puerto Rico to London flight tickets

Avianca

11 Nov

SJU18:20San Juan Luis Munoz Marin Intl

16h 15m

1 stop

LHR14:35London Heathrow

24 Nov

LHR21:35London Heathrow

23h 20m

1 stop

SJU16:55San Juan Luis Munoz Marin Intl

£541

Avianca

23 Nov

SJU18:20San Juan Luis Munoz Marin Intl

16h 15m

1 stop

LHR14:35London Heathrow

30 Nov

LHR21:35London Heathrow

23h 20m

1 stop

SJU16:55San Juan Luis Munoz Marin Intl

£543

Avianca

26 Nov

SJU12:50San Juan Luis Munoz Marin Intl

21h 45m

1 stop

LHR14:35London Heathrow

1 Dec

LHR21:35London Heathrow

23h 20m

1 stop

SJU16:55San Juan Luis Munoz Marin Intl

£544

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

Tue 1/12

16:55-07:55

1 stop35h 00m

London Heathrow

Fri 4/12

06:50-13:32

2 stops34h 42m

£515

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 1/2

16:55-07:55

1 stop35h 00m

London Heathrow

Thu 4/2

06:50-13:32

2 stops34h 42m

£528

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 1/2

16:55-07:55

1 stop35h 00m

London Heathrow

Thu 4/2

06:50-13:32

2 stops34h 42m

£529

Fastest return journey

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Fri 15/1

15:14-08:15

1 stop13h 01m

London Heathrow

Sun 24/1

08:45-20:00

1 stop15h 15m

£535

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Thu 14/1

15:14-08:15

1 stop13h 01m

London Heathrow

Sat 23/1

06:00-20:00

1 stop18h 00m

£535

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Tue 1/12

18:20-14:35

1 stop16h 15m

London Heathrow

Fri 4/12

21:35-11:25

1 stop17h 50m

£543

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 23/11

18:20-14:35

1 stop16h 15m

London Heathrow

Mon 30/11

21:35-16:55

1 stop23h 20m

£543

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Thu 26/11

18:20-14:35

1 stop16h 15m

London Heathrow

Mon 30/11

21:35-11:25

1 stop17h 50m

£543

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Sun 22/11

18:20-14:35

1 stop16h 15m

London Heathrow

Mon 30/11

21:35-11:25

1 stop17h 50m

£544

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 29/3

07:30-06:25

1 stop17h 55m

London Heathrow

Mon 5/4

08:55-23:19

2 stops19h 24m

£544

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 February. Flight prices, which tend to average around £535, are often lower during this time because this is during the off-season. The month of March is another great option to travel to London, with average flight prices from Puerto Rico averaging around £593.

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 £698 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 £544 on momondo.

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

You could potentially save up to 36% 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	£196
Fastest flight time	12h 25m
Direct flights	None

The best one-way flight to London from Puerto Rico in the past 72 hours is £196. The best return flight deal from Puerto Rico to London found on momondo in the last 72 hours is £515.

The fastest flight from Puerto Rico to London takes 12h 25m

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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Hastings

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Bedford

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Harlow

Winchester

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 £196

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 25/11. 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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United Airlines flights from Puerto Rico to London

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

Avianca flights from Puerto Rico to London

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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