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Cheap flights from Puerto Rico to the United Kingdom from £203

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 the United Kingdom departing on 16/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Puerto Rico to the United Kingdom

Recent return flight deals from Puerto Rico to the United Kingdom

Enter your travel dates to find the best prices.
Multiple Airlines Logo
02:58 - 10:00SJU  San Juan Luis Munoz Marin Intl-LGW London Gatwick
26h 02m1 stop Orlando
Multiple Airlines Logo
11:00 - 02:50LGW  London Gatwick-SJU San Juan Luis Munoz Marin Intl
19h 50m1 stop Orlando
£453Multiple Airlines
Sun, 18 Oct - Thu, 5 Nov
Multiple Airlines Logo
07:15 - 10:00SJU  San Juan Luis Munoz Marin Intl-LGW London Gatwick
21h 45m2 stops Philadelphia Orlando
Multiple Airlines Logo
11:00 - 18:37LGW  London Gatwick-SJU San Juan Luis Munoz Marin Intl
35h 37m1 stop Orlando
£475Multiple Airlines
Tue, 20 Oct - Thu, 5 Nov
Multiple Airlines Logo
08:55 - 13:30PSE  Ponce Mercedita-LHR London Heathrow
23h 35m2 stops Orlando Dublin
Multiple Airlines Logo
07:40 - 08:01LHR  London Heathrow-PSE Ponce Mercedita
29h 21m2 stops Dublin Orlando
£495Multiple Airlines
Tue, 15 Sep - Tue, 22 Sep
Multiple Airlines Logo
06:05 - 10:00SJU  San Juan Luis Munoz Marin Intl-LGW London Gatwick
22h 55m1 stop Orlando
Multiple Airlines Logo
12:35 - 02:50LGW  London Gatwick-SJU San Juan Luis Munoz Marin Intl
18h 15m1 stop Orlando
£516Multiple Airlines
Sat, 24 Oct - Fri, 6 Nov
Multiple Airlines Logo
20:25 - 23:05SJU  San Juan Luis Munoz Marin Intl-LGW London Gatwick
21h 40m1 stop Madrid Barajas
Multiple Airlines Logo
08:05 - 20:00LGW  London Gatwick-SJU San Juan Luis Munoz Marin Intl
15h 55m1 stop Madrid Barajas
£567Multiple Airlines
Thu, 15 Oct - Fri, 30 Oct
Iberia Logo
18:55 - 12:05SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
13h 10m1 stop Miami
Iberia Logo
11:15 - 22:29LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
15h 14m1 stop Miami
£577Iberia
Mon, 16 Nov - Fri, 20 Nov
Multiple Airlines Logo
03:10 - 10:00SJU  San Juan Luis Munoz Marin Intl-LGW London Gatwick
25h 50m1 stop Orlando
Multiple Airlines Logo
14:00 - 08:11LGW  London Gatwick-SJU San Juan Luis Munoz Marin Intl
23h 11m1 stop Orlando
£582Multiple Airlines
Sat, 22 Aug - Sat, 5 Sep
Virgin Atlantic Logo
18:35 - 11:40SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
13h 05m1 stop Atlanta Hartsfield-Jackson
Virgin Atlantic Logo
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
Iberia Logo
15:17 - 08:15SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
12h 58m1 stop Miami
Iberia Logo
11:15 - 21:38LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
14h 23m1 stop Miami
£590Iberia
Thu, 26 Nov - Thu, 3 Dec
JetBlue Logo
06:00 - 20:45SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
33h 45m1 stop New York John F Kennedy Intl
JetBlue Logo
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

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Iberia flights from Puerto Rico to United Kingdom

Our best Iberia deals on Puerto Rico to United Kingdom flight tickets
Iberia
16 Nov
SJU18:55San Juan Luis Munoz Marin Intl
13h 10m
1 stop
LHR12:05London Heathrow
20 Nov
LHR11:15London Heathrow
15h 14m
1 stop
SJU22:29San Juan Luis Munoz Marin Intl
£577
Iberia
26 Nov
SJU15:17San Juan Luis Munoz Marin Intl
12h 58m
1 stop
LHR08:15London Heathrow
3 Dec
LHR11:15London Heathrow
14h 23m
1 stop
SJU21:38San Juan Luis Munoz Marin Intl
£590
Iberia
26 Nov
SJU15:17San Juan Luis Munoz Marin Intl
12h 58m
1 stop
LHR08:15London Heathrow
3 Dec
LHR11:15London Heathrow
14h 23m
1 stop
SJU21:38San Juan Luis Munoz Marin Intl
£600

United Airlines flights from Puerto Rico to United Kingdom

Our best United Airlines deals on Puerto Rico to United Kingdom 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
£609

momondo Fare Finder

 
Customise your flight search to find flights from Puerto Rico to United Kingdom that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 14 August 2026.
Use the filters below to find and compare flights from Puerto Rico to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LGW London Gatwick

SJULGW

San Juan Luis Munoz Marin Intl

Sun 18/10

02:58-10:00

1 stop26h 02m

London Gatwick

Thu 5/11

11:00-02:50

1 stop19h 50m

£453

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LGW London Gatwick

SJULGW

San Juan Luis Munoz Marin Intl

Tue 20/10

07:15-10:00

2 stops21h 45m

London Gatwick

Thu 5/11

11:00-18:37

1 stop35h 37m

£475

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 - LGW London Gatwick

SJULGW

San Juan Luis Munoz Marin Intl

Sat 24/10

06:05-10:00

1 stop22h 55m

London Gatwick

Fri 6/11

12:35-02:50

1 stop18h 15m

£516

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LGW London Gatwick

SJULGW

San Juan Luis Munoz Marin Intl

Thu 15/10

20:25-23:05

1 stop21h 40m

London Gatwick

Fri 30/10

08:05-20:00

1 stop15h 55m

£567

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 16/11

18:55-12:05

1 stop13h 10m

London Heathrow

Fri 20/11

11:15-22:29

1 stop15h 14m

£577

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LGW London Gatwick

SJULGW

San Juan Luis Munoz Marin Intl

Sat 22/8

03:10-10:00

1 stop25h 50m

London Gatwick

Sat 5/9

14:00-08:11

1 stop23h 11m

£582

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
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

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

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to the United Kingdom from

How to get the cheapest flight ticket from Puerto Rico to United Kingdom

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

What is the cheapest month to fly to United Kingdom?

The cheapest month to fly to United Kingdom from Puerto Rico is in February. Flight prices, which tend to average around £463, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of February, then departing from Puerto Rico during the month January is also very affordable. Most momondo users find prices during this month for around £464.

How far in advance should I book a flight from Puerto Rico to the United Kingdom?

You are more likely to see cheaper flights to United Kingdom from Puerto Rico when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom 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 United Kingdom from Puerto Rico for as low as £549 on momondo.

Can stopping save me money on Puerto Rico to United Kingdom flights?

You could potentially save up to 15% on your flight if you consider stops on a Puerto Rico to United Kingdom flight.

Cheap Puerto Rico to United Kingdom flight deals and tips

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

Fastest flight time

12h 00m

Direct flights

None
The fastest flight from Puerto Rico to United Kingdom takes 12h 00m
There are no direct flights from Puerto Rico to United Kingdom. There are no popular flight routes from Puerto Rico to United Kingdom.
Search flight deals

Frequently asked questions about flying from Puerto Rico to the United Kingdom

  • When did momondo last update prices for flights from Puerto Rico to United Kingdom?

    Prices for flights from Puerto Rico to United Kingdom are updated daily.

  • How old do you have to be to fly from Puerto Rico to United Kingdom?

    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 Puerto Rico to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

    The travel and health documents you'll need for your trip to United Kingdom may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United Kingdom. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

Finding the right flight to United Kingdom from Puerto Rico is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to United Kingdom quick and easy, saving you time and money.

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

Yes. All flights to United Kingdom from Puerto Rico on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to United Kingdom from Puerto Rico.

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

Price alerts on flights to United Kingdom from Puerto Rico are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
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