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Cheap flights from the United Kingdom to Puerto Rico from £291

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 28/1. 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.
Multiple Airlines Logo
14:00 - 10:24
LGW
-
SJU
24h 24m1 stop
Multiple Airlines Logo
17:50 - 15:50
SJU
-
LGW
18h 00m2 stops
£526Multiple Airlines
Thu, 22 Jan - Thu, 29 Jan
Multiple Airlines Logo
12:15 - 09:47
LHR
-
SJU
25h 32m2 stops
Multiple Airlines Logo
06:00 - 10:50
SJU
-
LHR
24h 50m2 stops
£527Multiple Airlines
Fri, 23 Jan - Sun, 1 Feb
JetBlue Logo
07:25 - 23:50
LHR
-
SJU
20h 25m1 stop
JetBlue Logo
06:15 - 06:55
SJU
-
LHR
20h 40m1 stop
£530JetBlue
Thu, 8 Jan - Thu, 22 Jan
JetBlue Logo
08:25 - 22:01
LHR
-
SJU
18h 36m1 stop
JetBlue Logo
19:40 - 20:45
SJU
-
LHR
20h 05m1 stop
£531JetBlue
Mon, 13 Apr - Wed, 22 Apr
Icelandair Logo
14:20 - 01:29
GLA
-
SJU
16h 09m2 stops
Icelandair Logo
05:15 - 13:25
SJU
-
GLA
27h 10m2 stops
£785Icelandair
Sun, 12 Apr - Wed, 22 Apr
Icelandair Logo
14:20 - 01:29
GLA
-
SJU
40h 09m2 stops
Icelandair Logo
16:40 - 13:25
SJU
-
GLA
15h 45m2 stops
£823Icelandair
Sat, 11 Apr - Fri, 24 Apr
Iberia Logo
19:15 - 16:35
LCY
-
SJU
25h 20m1 stop
Iberia Logo
21:25 - 08:50
SJU
-
LCY
31h 25m1 stop
£858Iberia
Mon, 26 Jan - Thu, 5 Feb
Iberia Logo
09:10 - 19:55
LCY
-
SJU
14h 45m1 stop
Iberia Logo
21:25 - 14:35
SJU
-
LCY
13h 10m1 stop
£868Iberia
Mon, 19 Jan - Mon, 26 Jan
British Airways Logo
06:05 - 19:55
EDI
-
SJU
17h 50m2 stops
British Airways Logo
16:50 - 15:15
SJU
-
EDI
18h 25m2 stops
£901British Airways
Thu, 26 Feb - Mon, 2 Mar
British Airways Logo
08:20 - 23:44
EDI
-
SJU
19h 24m2 stops
British Airways Logo
06:00 - 15:15
SJU
-
EDI
29h 15m2 stops
£907British Airways
Thu, 26 Feb - Mon, 2 Mar

JetBlue flights from United Kingdom to Puerto Rico

Our best JetBlue deals on United Kingdom to Puerto Rico flight tickets
JetBlue
8 Jan
LHR07:25London Heathrow
20h 25m
1 stop
SJU23:50San Juan Luis Munoz Marin Intl
22 Jan
SJU06:15San Juan Luis Munoz Marin Intl
20h 40m
1 stop
LHR06:55London Heathrow
£530
Find similar
JetBlue
13 Apr
LHR08:25London Heathrow
18h 36m
1 stop
SJU22:01San Juan Luis Munoz Marin Intl
22 Apr
SJU19:40San Juan Luis Munoz Marin Intl
20h 05m
1 stop
LHR20:45London Heathrow
£531
Find similar
JetBlue
31 Dec
LHR09:20London Heathrow
13h 15m
1 stop
SJU18:35San Juan Luis Munoz Marin Intl
15 Jan
SJU14:20San Juan Luis Munoz Marin Intl
15h 10m
1 stop
LHR09:30London Heathrow
£537
Find similar

Avianca flights from United Kingdom to Puerto Rico

Our best Avianca deals on United Kingdom to Puerto Rico flight tickets
Avianca
14 Apr
LHR22:05London Heathrow
23h 45m
1 stop
SJU16:50San Juan Luis Munoz Marin Intl
19 Apr
SJU18:15San Juan Luis Munoz Marin Intl
16h 20m
1 stop
LHR15:35London Heathrow
£585
Find similar
Avianca
2 Feb
LHR21:40London Heathrow
23h 25m
1 stop
SJU17:05San Juan Luis Munoz Marin Intl
23 Feb
SJU18:30San Juan Luis Munoz Marin Intl
16h 05m
1 stop
LHR14:35London Heathrow
£592
Find similar
Avianca
13 Apr
LHR22:05London Heathrow
18h 50m
1 stop
SJU11:55San Juan Luis Munoz Marin Intl
19 Apr
SJU18:15San Juan Luis Munoz Marin Intl
16h 20m
1 stop
LHR15:35London Heathrow
£635
Find similar

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 20 December 2025.
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

LGW - SJU

LGWSJU

London Gatwick

Thu 22/1

14:00-10:24

1 stop24h 24m

San Juan Luis Munoz Marin Intl

Thu 29/1

17:50-15:50

2 stops18h 00m

£526

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 23/1

12:15-09:47

2 stops25h 32m

San Juan Luis Munoz Marin Intl

Sun 1/2

06:00-10:50

2 stops24h 50m

£527

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 8/1

07:25-23:50

1 stop20h 25m

San Juan Luis Munoz Marin Intl

Thu 22/1

06:15-06:55

1 stop20h 40m

£530

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 13/4

08:25-22:01

1 stop18h 36m

San Juan Luis Munoz Marin Intl

Wed 22/4

19:40-20:45

1 stop20h 05m

£531

GlasgowSan Juan

GLA - SJU

GLASJU

Glasgow Intl

Sun 12/4

14:20-01:29

2 stops16h 09m

San Juan Luis Munoz Marin Intl

Wed 22/4

05:15-13:25

2 stops27h 10m

£785

GlasgowSan Juan

GLA - SJU

GLASJU

Glasgow Intl

Sat 11/4

14:20-01:29

2 stops40h 09m

San Juan Luis Munoz Marin Intl

Fri 24/4

16:40-13:25

2 stops15h 45m

£823

LondonSan Juan

LCY - SJU

LCYSJU

London City

Mon 26/1

19:15-16:35

1 stop25h 20m

San Juan Luis Munoz Marin Intl

Thu 5/2

21:25-08:50

1 stop31h 25m

£858

LondonSan Juan

LCY - SJU

LCYSJU

London City

Mon 19/1

09:10-19:55

1 stop14h 45m

San Juan Luis Munoz Marin Intl

Mon 26/1

21:25-14:35

1 stop13h 10m

£868

EdinburghSan Juan

EDI - SJU

EDISJU

Edinburgh Turnhouse

Thu 26/2

06:05-19:55

2 stops17h 50m

San Juan Luis Munoz Marin Intl

Mon 2/3

16:50-15:15

2 stops18h 25m

£901

EdinburghSan Juan

EDI - SJU

EDISJU

Edinburgh Turnhouse

Thu 26/2

08:20-23:44

2 stops19h 24m

San Juan Luis Munoz Marin Intl

Mon 2/3

06:00-15:15

2 stops29h 15m

£907

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 £531. 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 £564.

What is the cheapest day to depart on your flight to Puerto Rico?

According to our data, Monday is the cheapest day to fly to Puerto Rico from United Kingdom. The lowest ticket price found for a Monday departure recently was £481. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Puerto Rico is Friday, with ticket prices averaging around £644.

What is the cheapest time of day to depart on your flight to Puerto Rico?

Flying to Puerto Rico from United Kingdom in the morning is the least expensive time of day to depart. momondo users have found prices as low as £569 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £727 on average. Flights to Puerto Rico from United Kingdom in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 £649 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 £524 on momondo.

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

You could potentially save up to 57% 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 £345Free CancellationRating
7.5
675 reviews
Search Virgin Atlantic flights
JetBluePriceFrom £440Free CancellationRating
7.2
2,896 reviews
Search JetBlue flights
FinnairPriceFrom £451Free CancellationRating
7.6
1,339 reviews
Search Finnair flights
IcelandairPriceFrom £487Free CancellationRating
7.0
592 reviews
Search Icelandair flights
IberiaPriceFrom £503Free CancellationRating
7.0
3,055 reviews
Search Iberia flights
British AirwaysPriceFrom £540Free CancellationRating
6.7
7,600 reviews
Search British Airways flights
Aer LingusPriceFrom £658Free CancellationRating
7.2
1,406 reviews
Search Aer Lingus flights
KLMPriceFrom £870Free CancellationRating
7.7
1,429 reviews
Search KLM 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

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.
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