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Cheap flights from London to Puerto Rico from £252

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 26/1. 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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Cheap return flights

Enter your travel dates to find the best prices.
JetBlue Logo
12:20 - 02:52
LHR
-
BQN
18h 32m1 stop
JetBlue Logo
02:32 - 20:45
BQN
-
LHR
14h 13m1 stop
£544JetBlue
Mon, 23 Feb - Thu, 26 Feb
JetBlue Logo
08:05 - 23:59
LHR
-
BQN
19h 54m1 stop
JetBlue Logo
02:32 - 20:45
BQN
-
LHR
14h 13m1 stop
£548JetBlue
Mon, 23 Feb - Thu, 26 Feb
Multiple Airlines Logo
13:40 - 17:05
LHR
-
SJU
31h 25m3 stops
Multiple Airlines Logo
10:52 - 09:15
SJU
-
LHR
18h 23m2 stops
£555Multiple Airlines
Thu, 19 Feb - Tue, 3 Mar
Multiple Airlines Logo
14:00 - 09:47
LGW
-
SJU
23h 47m1 stop
Multiple Airlines Logo
17:50 - 15:45
SJU
-
LGW
17h 55m2 stops
£557Multiple Airlines
Mon, 2 Feb - Tue, 10 Feb
Icelandair Logo
09:20 - 10:32
LHR
-
SJU
29h 12m2 stops
Icelandair Logo
06:00 - 06:55
SJU
-
LHR
44h 55m2 stops
£561Icelandair
Fri, 6 Feb - Mon, 23 Feb
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
United Airlines Logo
16:20 - 16:11
LHR
-
MAZ
27h 51m2 stops
United Airlines Logo
13:19 - 07:30
MAZ
-
LHR
38h 11m2 stops
£1,192United Airlines
Thu, 22 Jan - Mon, 26 Jan
United Airlines Logo
16:20 - 16:11
LHR
-
MAZ
27h 51m2 stops
United Airlines Logo
13:19 - 07:30
MAZ
-
LHR
38h 11m2 stops
£1,199United Airlines
Thu, 22 Jan - Mon, 26 Jan
Air Canada Logo
09:00 - 23:57
LHR
-
BQN
18h 57m2 stops
Air Canada Logo
01:09 - 08:30
BQN
-
LHR
27h 21m2 stops
£1,441Air Canada
Mon, 23 Feb - Thu, 26 Feb
Air Canada Logo
09:00 - 23:57
LHR
-
BQN
18h 57m2 stops
Air Canada Logo
01:09 - 08:30
BQN
-
LHR
27h 21m2 stops
£1,450Air Canada
Mon, 23 Feb - Thu, 26 Feb

Icelandair flights from London to Puerto Rico

Our best Icelandair deals on London to Puerto Rico flight tickets
Icelandair
6 Feb
LHR09:20London Heathrow
29h 12m
2 stops
SJU10:32San Juan Luis Munoz Marin Intl
23 Feb
SJU06:00San Juan Luis Munoz Marin Intl
44h 55m
2 stops
LHR06:55London Heathrow
£561
Find similar
Icelandair
21 Feb
LHR08:05London Heathrow
24h 05m
1 stop
SJU04:10San Juan Luis Munoz Marin Intl
7 Mar
SJU06:00San Juan Luis Munoz Marin Intl
23h 30m
2 stops
LHR09:30London Heathrow
£567
Find similar
Icelandair
20 Feb
LHR12:20London Heathrow
16h 39m
2 stops
SJU00:59San Juan Luis Munoz Marin Intl
5 Mar
SJU10:55San Juan Luis Munoz Marin Intl
16h 00m
2 stops
LHR06:55London Heathrow
£571
Find similar

Iberia flights from London to Puerto Rico

Our best Iberia deals on London to Puerto Rico flight tickets
Iberia
2 Feb
LGW11:45London Gatwick
12h 10m
1 stop
SJU19:55San Juan Luis Munoz Marin Intl
9 Feb
SJU18:10San Juan Luis Munoz Marin Intl
12h 40m
1 stop
LGW10:50London Gatwick
£685
Find similar
Iberia
2 Feb
LGW11:45London Gatwick
12h 10m
1 stop
SJU19:55San Juan Luis Munoz Marin Intl
8 Feb
SJU18:10San Juan Luis Munoz Marin Intl
12h 40m
1 stop
LGW10:50London Gatwick
£732
Find similar
Iberia
2 Feb
LGW11:45London Gatwick
12h 10m
1 stop
SJU19:55San Juan Luis Munoz Marin Intl
10 Feb
SJU18:10San Juan Luis Munoz Marin Intl
12h 40m
1 stop
LGW10:50London Gatwick
£740
Find similar

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 5 December 2025.
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

Mon 23/2

12:20-02:52

1 stop18h 32m

Aguadilla Borinquen

Thu 26/2

02:32-20:45

1 stop14h 13m

£544

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Mon 23/2

08:05-23:59

1 stop19h 54m

Aguadilla Borinquen

Thu 26/2

02:32-20:45

1 stop14h 13m

£548

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 19/2

13:40-17:05

3 stops31h 25m

San Juan Luis Munoz Marin Intl

Tue 3/3

10:52-09:15

2 stops18h 23m

£555

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 2/2

14:00-09:47

1 stop23h 47m

San Juan Luis Munoz Marin Intl

Tue 10/2

17:50-15:45

2 stops17h 55m

£557

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 6/2

09:20-10:32

2 stops29h 12m

San Juan Luis Munoz Marin Intl

Mon 23/2

06:00-06:55

2 stops44h 55m

£561

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

LondonMayagüez

LHR - MAZ

LHRMAZ

London Heathrow

Thu 22/1

16:20-16:11

2 stops27h 51m

Mayagüez Eugenio M De Hostos

Mon 26/1

13:19-07:30

2 stops38h 11m

£1,192

LondonMayagüez

LHR - MAZ

LHRMAZ

London Heathrow

Thu 22/1

16:20-16:11

2 stops27h 51m

Mayagüez Eugenio M De Hostos

Mon 26/1

13:19-07:30

2 stops38h 11m

£1,199

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Mon 23/2

09:00-23:57

2 stops18h 57m

Aguadilla Borinquen

Thu 26/2

01:09-08:30

2 stops27h 21m

£1,441

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Mon 23/2

09:00-23:57

2 stops18h 57m

Aguadilla Borinquen

Thu 26/2

01:09-08:30

2 stops27h 21m

£1,450

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 £534. If you don’t want to visit Puerto Rico in September, then you should wait until January to fly from London, 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 London. The lowest ticket price found for a Monday departure recently was £483. 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 £645.

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

Flying to Puerto Rico from London in the morning is the least expensive time of day to depart. momondo users have found prices as low as £571 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 £729 on average. Flights to Puerto Rico from London 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 London when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around £646 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 £525 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 50m

Direct flights

None
The fastest flight from London to Puerto Rico takes 12h 50m
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 £334Free CancellationRating
7.5
675 reviews
Search Virgin Atlantic flights
FinnairPriceFrom £452Free CancellationRating
7.6
1,334 reviews
Search Finnair flights
JetBluePriceFrom £456Free CancellationRating
7.2
2,899 reviews
Search JetBlue flights
IcelandairPriceFrom £488Free CancellationRating
7.0
584 reviews
Search Icelandair flights
IberiaPriceFrom £504Free CancellationRating
7.0
3,040 reviews
Search Iberia flights
British AirwaysPriceFrom £542Free CancellationRating
6.7
7,562 reviews
Search British Airways 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 £415
Flights to Aguadillafrom £747