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Cheap flights from the United Kingdom to Puerto Rico from £234

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Puerto Rico departing on 13/4. 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
0 bags

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Find the cheapest flights from the United Kingdom to Puerto Rico

Recent return flight deals from the United Kingdom to Puerto Rico

Enter your travel dates to find the best prices.
JetBlue Logo
08:15 - 18:30
LHR
-
SJU
15h 15m
1 stop
JetBlue Logo
12:00 - 09:30
SJU
-
LHR
16h 30m
1 stop
£431JetBlue
Tue, 28 Apr - Sun, 10 May
JetBlue Logo
07:25 - 20:26
LHR
-
SJU
17h 01m
1 stop
JetBlue Logo
05:10 - 06:55
SJU
-
LHR
21h 45m
1 stop
£463JetBlue
Tue, 17 Mar - Tue, 24 Mar
JetBlue Logo
07:45 - 01:25
LHR
-
SJU
21h 40m
1 stop
JetBlue Logo
05:01 - 06:30
SJU
-
LHR
20h 29m
1 stop
£465JetBlue
Sun, 15 Mar - Tue, 31 Mar
JetBlue Logo
07:45 - 22:51
LHR
-
SJU
19h 06m
1 stop
JetBlue Logo
05:01 - 06:30
SJU
-
LHR
20h 29m
1 stop
£466JetBlue
Sun, 15 Mar - Tue, 31 Mar
Multiple Airlines Logo
19:25 - 23:58
LGW
-
SJU
32h 33m
2 stops
Multiple Airlines Logo
06:10 - 06:20
SJU
-
LGW
19h 10m
1 stop
£559Multiple Airlines
Mon, 16 Mar - Tue, 31 Mar
Multiple Airlines Logo
14:00 - 22:45
LGW
-
SJU
36h 45m
1 stop
Multiple Airlines Logo
06:10 - 06:20
SJU
-
LGW
19h 10m
1 stop
£567Multiple Airlines
Mon, 16 Mar - Tue, 31 Mar
Icelandair Logo
13:05 - 02:07
MAN
-
SJU
18h 02m
2 stops
Icelandair Logo
06:25 - 11:40
SJU
-
MAN
48h 15m
2 stops
£836Icelandair
Wed, 15 Apr - Wed, 22 Apr
Aer Lingus Logo
08:35 - 19:47
EDI
-
SJU
16h 12m
2 stops
Aer Lingus Logo
08:30 - 08:30
SJU
-
EDI
19h 00m
2 stops
£1,013Aer Lingus
Mon, 17 Aug - Mon, 31 Aug
Aer Lingus Logo
13:30 - 01:28
EDI
-
SJU
16h 58m
2 stops
Aer Lingus Logo
08:30 - 08:00
SJU
-
EDI
18h 30m
2 stops
£1,014Aer Lingus
Mon, 17 Aug - Mon, 31 Aug
United Airlines Logo
06:05 - 20:34
BHX
-
SJU
19h 29m
2 stops
United Airlines Logo
07:20 - 09:40
SJU
-
BHX
21h 20m
2 stops
£1,053United Airlines
Wed, 15 Apr - Wed, 22 Apr

JetBlue flights from United Kingdom to Puerto Rico

Our best JetBlue deals on United Kingdom to Puerto Rico flight tickets
JetBlue
9 Mar
LHR08:05London Heathrow
19h 24m
1 stop
SJU23:29San Juan Luis Munoz Marin Intl
16 Mar
SJU03:26San Juan Luis Munoz Marin Intl
14h 14m
1 stop
LHR21:40London Heathrow
£415
JetBlue
28 Apr
LHR08:15London Heathrow
15h 15m
1 stop
SJU18:30San Juan Luis Munoz Marin Intl
10 May
SJU12:00San Juan Luis Munoz Marin Intl
16h 30m
1 stop
LHR09:30London Heathrow
£431
JetBlue
13 Mar
LHR08:05London Heathrow
30h 50m
1 stop
SJU10:55San Juan Luis Munoz Marin Intl
17 Mar
SJU05:10San Juan Luis Munoz Marin Intl
21h 45m
1 stop
LHR06:55London Heathrow
£462

Icelandair flights from United Kingdom to Puerto Rico

Our best Icelandair deals on United Kingdom to Puerto Rico flight tickets
Icelandair
14 Apr
LGW15:40London Gatwick
39h 27m
2 stops
SJU02:07San Juan Luis Munoz Marin Intl
23 Apr
SJU06:25San Juan Luis Munoz Marin Intl
27h 15m
2 stops
LGW14:40London Gatwick
£711
Icelandair
13 Apr
LGW15:40London Gatwick
39h 27m
2 stops
SJU02:07San Juan Luis Munoz Marin Intl
24 Apr
SJU07:25San Juan Luis Munoz Marin Intl
26h 15m
2 stops
LGW14:40London Gatwick
£713
Icelandair
17 Apr
LGW15:40London Gatwick
39h 27m
2 stops
SJU02:07San Juan Luis Munoz Marin Intl
24 Apr
SJU07:25San Juan Luis Munoz Marin Intl
26h 15m
2 stops
LGW14:40London Gatwick
£718

momondo Fare Finder

 
Customise your flight search to find flights from United Kingdom to Puerto Rico 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 5 March 2026.
Use the filters below to find and compare flights from the United Kingdom to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 28/4

08:15-18:30

1 stop15h 15m

San Juan Luis Munoz Marin Intl

Sun 10/5

12:00-09:30

1 stop16h 30m

£431

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 17/3

07:25-20:26

1 stop17h 01m

San Juan Luis Munoz Marin Intl

Tue 24/3

05:10-06:55

1 stop21h 45m

£463

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sun 15/3

07:45-01:25

1 stop21h 40m

San Juan Luis Munoz Marin Intl

Tue 31/3

05:01-06:30

1 stop20h 29m

£465

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sun 15/3

07:45-22:51

1 stop19h 06m

San Juan Luis Munoz Marin Intl

Tue 31/3

05:01-06:30

1 stop20h 29m

£466

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 16/3

19:25-23:58

2 stops32h 33m

San Juan Luis Munoz Marin Intl

Tue 31/3

06:10-06:20

1 stop19h 10m

£559

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 16/3

14:00-22:45

1 stop36h 45m

San Juan Luis Munoz Marin Intl

Tue 31/3

06:10-06:20

1 stop19h 10m

£567

ManchesterSan Juan

MAN - SJU

MANSJU

Manchester

Wed 15/4

13:05-02:07

2 stops18h 02m

San Juan Luis Munoz Marin Intl

Wed 22/4

06:25-11:40

2 stops48h 15m

£836

EdinburghSan Juan

EDI - SJU

EDISJU

Edinburgh Turnhouse

Mon 17/8

08:35-19:47

2 stops16h 12m

San Juan Luis Munoz Marin Intl

Mon 31/8

08:30-08:30

2 stops19h 00m

£1,013

EdinburghSan Juan

EDI - SJU

EDISJU

Edinburgh Turnhouse

Mon 17/8

13:30-01:28

2 stops16h 58m

San Juan Luis Munoz Marin Intl

Mon 31/8

08:30-08:00

2 stops18h 30m

£1,014

BirminghamSan Juan

BHX - SJU

BHXSJU

Birmingham

Wed 15/4

06:05-20:34

2 stops19h 29m

San Juan Luis Munoz Marin Intl

Wed 22/4

07:20-09:40

2 stops21h 20m

£1,053

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 Puerto Rico from

How to get the cheapest flight ticket from United Kingdom 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

What is the cheapest month to fly to Puerto Rico?

In general, September is the cheapest month to fly from United Kingdom to Puerto Rico. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £544. If you don’t want to visit Puerto Rico in September, then you should wait until February to fly from United Kingdom, when ticket prices are also cheap, with an average price of £550.

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

You are more likely to see cheaper flights to Puerto Rico from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around £663 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 United Kingdom for as low as £525 on momondo.

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

You could potentially save up to 45% on your flight if you consider stops on a United Kingdom to Puerto Rico flight.

Cheap United Kingdom to Puerto Rico flight deals and tips

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

Fastest flight time

12h 50m

Direct flights

None
The fastest flight from United Kingdom to Puerto Rico takes 12h 50m
There are no direct flights from United Kingdom to Puerto Rico. There are no popular flight routes from United Kingdom to Puerto Rico.
Search flight deals

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

    Prices for flights from United Kingdom to Puerto Rico are refreshed on a daily basis.

  • How many operators does momondo search for flights from United Kingdom to Puerto Rico?

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

Compare and see reviews for airlines that fly from United Kingdom to Puerto Rico with momondo
Airline
Rating
Free Cancellation
Price
Virgin AtlanticPriceFrom £346Free CancellationRating
7.5
680 reviews
Search Virgin Atlantic flights
Aer LingusPriceFrom £366Free CancellationRating
7.2
1,467 reviews
Search Aer Lingus flights
JetBluePriceFrom £411Free CancellationRating
7.2
2,896 reviews
Search JetBlue flights
FinnairPriceFrom £438Free CancellationRating
7.6
1,370 reviews
Search Finnair flights
IcelandairPriceFrom £481Free CancellationRating
7.1
617 reviews
Search Icelandair flights
IberiaPriceFrom £558Free CancellationRating
7.0
3,132 reviews
Search Iberia flights
British AirwaysPriceFrom £609Free CancellationRating
6.7
7,775 reviews
Search British Airways flights

Why use momondo?

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

Finding the right flight to Puerto Rico from United Kingdom 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 Puerto Rico quick and easy, saving you time and money.

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

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

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

momondo provides multiple filters to help you find the best flight to Puerto Rico from United Kingdom. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of United Kingdom to Puerto Rico flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Puerto Rico trip

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