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Cheap flights from the United Kingdom to Puerto Rico from £305

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 14/5. 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 - 13:34
LHR
-
SJU
34h 19m
1 stop
JetBlue Logo
19:35 - 06:30
SJU
-
LHR
29h 55m
1 stop
£581JetBlue
Tue, 6 Oct - Fri, 16 Oct
JetBlue Logo
11:30 - 00:17
EDI
-
SJU
17h 47m
1 stop
JetBlue Logo
06:30 - 09:20
SJU
-
EDI
21h 50m
1 stop
£587JetBlue
Thu, 21 May - Thu, 28 May
Multiple Airlines Logo
14:00 - 23:59
LGW
-
SJU
38h 59m
2 stops
Multiple Airlines Logo
02:59 - 10:00
SJU
-
LGW
26h 01m
1 stop
£613Multiple Airlines
Wed, 27 May - Sat, 6 Jun
Multiple Airlines Logo
14:00 - 04:01
LGW
-
SJU
43h 01m
2 stops
Multiple Airlines Logo
02:59 - 10:00
SJU
-
LGW
26h 01m
1 stop
£617Multiple Airlines
Fri, 29 May - Sat, 6 Jun
Aer Lingus Logo
08:10 - 21:42
BHX
-
SJU
18h 32m
2 stops
Aer Lingus Logo
20:40 - 19:55
SJU
-
BHX
42h 15m
2 stops
£993Aer Lingus
Wed, 3 Jun - Wed, 10 Jun
Aer Lingus Logo
08:45 - 19:05
NCL
-
SJU
39h 20m
2 stops
Aer Lingus Logo
20:40 - 08:15
SJU
-
NCL
30h 35m
2 stops
£1,019Aer Lingus
Thu, 28 May - Thu, 11 Jun
British Airways Logo
09:35 - 19:05
LCY
-
SJU
14h 30m
1 stop
British Airways Logo
20:40 - 15:15
SJU
-
LCY
13h 35m
1 stop
£1,084British Airways
Thu, 14 May - Mon, 18 May
British Airways Logo
09:15 - 22:05
NCL
-
SJU
17h 50m
2 stops
British Airways Logo
15:44 - 14:15
SJU
-
NCL
17h 31m
2 stops
£1,145British Airways
Sat, 9 May - Wed, 13 May
Iberia Logo
19:15 - 15:25
LCY
-
SJU
25h 10m
1 stop
Iberia Logo
17:15 - 15:15
SJU
-
LCY
17h 00m
1 stop
£1,167Iberia
Fri, 18 Sep - Tue, 22 Sep
Iberia Logo
16:05 - 15:25
LCY
-
SJU
28h 20m
2 stops
Iberia Logo
17:15 - 15:15
SJU
-
LCY
17h 00m
1 stop
£1,170Iberia
Fri, 18 Sep - Tue, 22 Sep

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JetBlue flights from United Kingdom to Puerto Rico

Our best JetBlue deals on United Kingdom to Puerto Rico flight tickets
JetBlue
6 Oct
LHR08:15London Heathrow
34h 19m
1 stop
SJU13:34San Juan Luis Munoz Marin Intl
16 Oct
SJU19:35San Juan Luis Munoz Marin Intl
29h 55m
1 stop
LHR06:30London Heathrow
£581
JetBlue
21 May
EDI11:30Edinburgh Turnhouse
17h 47m
1 stop
SJU00:17San Juan Luis Munoz Marin Intl
28 May
SJU06:30San Juan Luis Munoz Marin Intl
21h 50m
1 stop
EDI09:20Edinburgh Turnhouse
£587
JetBlue
2 May
LHR08:15London Heathrow
15h 15m
1 stop
SJU18:30San Juan Luis Munoz Marin Intl
6 May
SJU08:00San Juan Luis Munoz Marin Intl
17h 30m
1 stop
LHR06:30London Heathrow
£622

Avianca flights from United Kingdom to Puerto Rico

Our best Avianca deals on United Kingdom to Puerto Rico flight tickets
Avianca
3 Jun
LHR22:05London Heathrow
24h 05m
1 stop
SJU17:10San Juan Luis Munoz Marin Intl
10 Jun
SJU18:35San Juan Luis Munoz Marin Intl
16h 00m
1 stop
LHR15:35London Heathrow
£685
Avianca
8 May
LHR22:05London Heathrow
18h 20m
1 stop
SJU11:25San Juan Luis Munoz Marin Intl
16 May
SJU18:35San Juan Luis Munoz Marin Intl
16h 00m
1 stop
LHR15:35London Heathrow
£705
Avianca
15 Jun
LHR22:05London Heathrow
18h 20m
1 stop
SJU11:25San Juan Luis Munoz Marin Intl
22 Jun
SJU18:35San Juan Luis Munoz Marin Intl
16h 00m
1 stop
LHR15:35London Heathrow
£715

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 21 April 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

Cheapest return flight

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 6/10

08:15-13:34

1 stop34h 19m

San Juan Luis Munoz Marin Intl

Fri 16/10

19:35-06:30

1 stop29h 55m

£581

EdinburghSan Juan

EDI - SJU

EDISJU

Edinburgh Turnhouse

Thu 21/5

11:30-00:17

1 stop17h 47m

San Juan Luis Munoz Marin Intl

Thu 28/5

06:30-09:20

1 stop21h 50m

£587

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 27/5

14:00-23:59

2 stops38h 59m

San Juan Luis Munoz Marin Intl

Sat 6/6

02:59-10:00

1 stop26h 01m

£613

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 29/5

14:00-04:01

2 stops43h 01m

San Juan Luis Munoz Marin Intl

Sat 6/6

02:59-10:00

1 stop26h 01m

£617

BirminghamSan Juan

BHX - SJU

BHXSJU

Birmingham

Wed 3/6

08:10-21:42

2 stops18h 32m

San Juan Luis Munoz Marin Intl

Wed 10/6

20:40-19:55

2 stops42h 15m

£993

Newcastle upon TyneSan Juan

NCL - SJU

NCLSJU

Newcastle upon Tyne

Thu 28/5

08:45-19:05

2 stops39h 20m

San Juan Luis Munoz Marin Intl

Thu 11/6

20:40-08:15

2 stops30h 35m

£1,019
Fastest return journey

LondonSan Juan

LCY - SJU

LCYSJU

London City

Thu 14/5

09:35-19:05

1 stop14h 30m

San Juan Luis Munoz Marin Intl

Mon 18/5

20:40-15:15

1 stop13h 35m

£1,084

Newcastle upon TyneSan Juan

NCL - SJU

NCLSJU

Newcastle upon Tyne

Sat 9/5

09:15-22:05

2 stops17h 50m

San Juan Luis Munoz Marin Intl

Wed 13/5

15:44-14:15

2 stops17h 31m

£1,145

LondonSan Juan

LCY - SJU

LCYSJU

London City

Fri 18/9

19:15-15:25

1 stop25h 10m

San Juan Luis Munoz Marin Intl

Tue 22/9

17:15-15:15

1 stop17h 00m

£1,167

LondonSan Juan

LCY - SJU

LCYSJU

London City

Fri 18/9

16:05-15:25

2 stops28h 20m

San Juan Luis Munoz Marin Intl

Tue 22/9

17:15-15:15

1 stop17h 00m

£1,170

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, February 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 February, then you should wait until September to fly from United Kingdom, when ticket prices are also cheap, with an average price of £548.

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 £655 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 £518 on momondo.

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

You could potentially save up to 36% 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 35m

Direct flights

None
The fastest flight from United Kingdom to Puerto Rico takes 12h 35m
There are no direct flights from United Kingdom to Puerto Rico. There are no popular flight routes from United Kingdom to Puerto Rico.
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Frequently asked questions about flying from the United Kingdom to Puerto Rico

  • 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 £330Free CancellationRating
7.5
687 reviews
Search Virgin Atlantic flights
JetBluePriceFrom £418Free CancellationRating
7.2
2,949 reviews
Search JetBlue flights
FinnairPriceFrom £485Free CancellationRating
7.7
1,390 reviews
Search Finnair flights
IcelandairPriceFrom £490Free CancellationRating
7.0
637 reviews
Search Icelandair flights
AviancaPriceFrom £533Free CancellationRating
6.5
2,514 reviews
Search Avianca flights
British AirwaysPriceFrom £535Free CancellationRating
6.7
7,898 reviews
Search British Airways flights
IberiaPriceFrom £580Free CancellationRating
7.0
3,185 reviews
Search Iberia flights
Aer LingusPriceFrom £651Free CancellationRating
7.3
1,520 reviews
Search Aer Lingus 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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Find better results for your trip to Puerto Rico

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