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Cheap flights from London to Puerto Rico from £257

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Puerto Rico departing on 26/2. 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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0 bags

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Find the cheapest flights from London to Puerto Rico

Cheap return flights

Enter your travel dates to find the best prices.
JetBlue Logo
12:20 - 23:59
LHR
-
BQN
15h 39m
1 stop
JetBlue Logo
04:00 - 21:40
BQN
-
LHR
13h 40m
1 stop
£382JetBlue
Wed, 11 Mar - Wed, 18 Mar
JetBlue Logo
08:05 - 18:53
LHR
-
SJU
14h 48m
1 stop
JetBlue Logo
05:10 - 06:55
SJU
-
LHR
21h 45m
1 stop
£402JetBlue
Mon, 9 Mar - Tue, 17 Mar
JetBlue Logo
12:20 - 02:54
LHR
-
SJU
18h 34m
1 stop
JetBlue Logo
05:01 - 21:40
SJU
-
LHR
12h 39m
1 stop
£403JetBlue
Mon, 9 Mar - Tue, 17 Mar
JetBlue Logo
09:20 - 21:56
LHR
-
SJU
16h 36m
1 stop
JetBlue Logo
11:10 - 06:55
SJU
-
LHR
15h 45m
1 stop
£411JetBlue
Tue, 3 Mar - Tue, 10 Mar
Multiple Airlines Logo
14:00 - 02:53
LGW
-
SJU
16h 53m
1 stop
Multiple Airlines Logo
15:19 - 10:00
SJU
-
LGW
14h 41m
1 stop
£424Multiple Airlines
Fri, 27 Feb - Fri, 6 Mar
Multiple Airlines Logo
14:00 - 01:24
LGW
-
SJU
39h 24m
2 stops
Multiple Airlines Logo
15:19 - 10:00
SJU
-
LGW
14h 41m
1 stop
£456Multiple Airlines
Fri, 27 Feb - Fri, 6 Mar
United Airlines Logo
09:05 - 22:57
LHR
-
BQN
41h 52m
2 stops
United Airlines Logo
00:09 - 07:55
BQN
-
LHR
27h 46m
2 stops
£886United Airlines
Wed, 11 Mar - Tue, 17 Mar
Air Canada Logo
09:00 - 23:57
LHR
-
BQN
18h 57m
2 stops
Air Canada Logo
00:09 - 06:30
BQN
-
LHR
26h 21m
2 stops
£1,490Air Canada
Thu, 5 Mar - Sun, 8 Mar
Air Canada Logo
09:00 - 23:57
LHR
-
BQN
18h 57m
2 stops
Air Canada Logo
00:09 - 06:30
BQN
-
LHR
26h 21m
2 stops
£1,490Air Canada
Thu, 5 Mar - Sun, 8 Mar
United Airlines Logo
16:40 - 16:11
LHR
-
MAZ
28h 31m
2 stops
United Airlines Logo
13:19 - 08:30
MAZ
-
LHR
38h 11m
2 stops
£1,572United Airlines
Sat, 18 Apr - Wed, 22 Apr

JetBlue flights from London to Puerto Rico

Our best JetBlue deals on London to Puerto Rico flight tickets
JetBlue
11 Mar
LHR12:20London Heathrow
15h 39m
1 stop
BQN23:59Aguadilla Borinquen
18 Mar
BQN04:00Aguadilla Borinquen
13h 40m
1 stop
LHR21:40London Heathrow
£382
JetBlue
9 Mar
LHR08:05London Heathrow
14h 48m
1 stop
SJU18:53San Juan Luis Munoz Marin Intl
17 Mar
SJU05:10San Juan Luis Munoz Marin Intl
21h 45m
1 stop
LHR06:55London Heathrow
£402
JetBlue
9 Mar
LHR12:20London Heathrow
18h 34m
1 stop
SJU02:54San Juan Luis Munoz Marin Intl
17 Mar
SJU05:01San Juan Luis Munoz Marin Intl
12h 39m
1 stop
LHR21:40London Heathrow
£403

Iberia flights from London to Puerto Rico

Our best Iberia deals on London to Puerto Rico flight tickets
Iberia
2 Mar
LCY09:10London City
14h 45m
1 stop
SJU19:55San Juan Luis Munoz Marin Intl
9 Mar
SJU21:25San Juan Luis Munoz Marin Intl
13h 10m
1 stop
LCY14:35London City
£939
Iberia
3 Mar
LCY09:10London City
14h 45m
1 stop
SJU19:55San Juan Luis Munoz Marin Intl
10 Mar
SJU13:23San Juan Luis Munoz Marin Intl
20h 42m
2 stops
LCY14:05London City
£955
Iberia
2 Mar
LCY09:10London City
14h 45m
1 stop
SJU19:55San Juan Luis Munoz Marin Intl
9 Mar
SJU21:25San Juan Luis Munoz Marin Intl
13h 10m
1 stop
LCY14:35London City
£960

momondo Fare Finder

 
Customise your flight search to find flights from London 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 2 February 2026.
Use the filters below to find and compare flights from London to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Wed 11/3

12:20-23:59

1 stop15h 39m

Aguadilla Borinquen

Wed 18/3

04:00-21:40

1 stop13h 40m

£382

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 9/3

08:05-18:53

1 stop14h 48m

San Juan Luis Munoz Marin Intl

Tue 17/3

05:10-06:55

1 stop21h 45m

£402

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 9/3

12:20-02:54

1 stop18h 34m

San Juan Luis Munoz Marin Intl

Tue 17/3

05:01-21:40

1 stop12h 39m

£403

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 3/3

09:20-21:56

1 stop16h 36m

San Juan Luis Munoz Marin Intl

Tue 10/3

11:10-06:55

1 stop15h 45m

£411

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 27/2

14:00-02:53

1 stop16h 53m

San Juan Luis Munoz Marin Intl

Fri 6/3

15:19-10:00

1 stop14h 41m

£424

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 27/2

14:00-01:24

2 stops39h 24m

San Juan Luis Munoz Marin Intl

Fri 6/3

15:19-10:00

1 stop14h 41m

£456

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Wed 11/3

09:05-22:57

2 stops41h 52m

Aguadilla Borinquen

Tue 17/3

00:09-07:55

2 stops27h 46m

£886

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Thu 5/3

09:00-23:57

2 stops18h 57m

Aguadilla Borinquen

Sun 8/3

00:09-06:30

2 stops26h 21m

£1,490

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Thu 5/3

09:00-23:57

2 stops18h 57m

Aguadilla Borinquen

Sun 8/3

00:09-06:30

2 stops26h 21m

£1,490

LondonMayagüez

LHR - MAZ

LHRMAZ

London Heathrow

Sat 18/4

16:40-16:11

2 stops28h 31m

Mayagüez Eugenio M De Hostos

Wed 22/4

13:19-08:30

2 stops38h 11m

£1,572

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Puerto Rico from

How to get the cheapest flight ticket from London 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 London to Puerto Rico. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £527. If you don’t want to visit Puerto Rico in September, then you should wait until February to fly from London, when ticket prices are also cheap, with an average price of £537.

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

You are more likely to see cheaper flights to Puerto Rico from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around £639 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 London for as low as £512 on momondo.

Cheap London to Puerto Rico flight deals and tips

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

Fastest flight time

12h 10m

Direct flights

None
The fastest flight from London to Puerto Rico takes 12h 10m
There are no direct flights from London to Puerto Rico. There are no popular flight routes from London to Puerto Rico.
Search flight deals

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

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

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

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

Compare and see reviews for airlines that fly from London to Puerto Rico with momondo
Airline
Rating
Free Cancellation
Price
Virgin AtlanticPriceFrom £337Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
JetBluePriceFrom £422Free CancellationRating
7.2
2,892 reviews
Search JetBlue flights
FinnairPriceFrom £423Free CancellationRating
7.6
1,357 reviews
Search Finnair flights
IcelandairPriceFrom £495Free CancellationRating
7.1
606 reviews
Search Icelandair flights
British AirwaysPriceFrom £528Free CancellationRating
6.7
7,711 reviews
Search British Airways flights
IberiaPriceFrom £543Free CancellationRating
7.0
3,101 reviews
Search Iberia flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Puerto Rico for you.

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

Yes. momondo allows you to filter the results for London to Puerto Rico flights to just show those with flexible booking policies.

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

Once you have performed a search for London to Puerto Rico flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from London to Puerto Rico now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Puerto Rico and let you know when they change.

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.
Start using Trips
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Find better results for your trip to Puerto Rico

Popular Cities in Puerto Rico

Popular flights according to clicks in the last 7 days on momondo
Flights to San Juanfrom £378
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