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Cheap flights from London Heathrow Airport to Puerto Rico from £294

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 Heathrow Airport to Puerto Rico departing on 25/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from London Heathrow Airport to Puerto Rico

Cheap return flights

Enter your travel dates to find the best prices.
JetBlue Logo
07:45 - 00:59
LHR
-
BQN
21h 14m
1 stop
JetBlue Logo
01:32 - 21:40
BQN
-
LHR
16h 08m
1 stop
£367JetBlue
Sun, 1 Mar - Mon, 9 Mar
JetBlue Logo
07:25 - 00:44
LHR
-
BQN
21h 19m
1 stop
JetBlue Logo
01:32 - 20:45
BQN
-
LHR
15h 13m
1 stop
£368JetBlue
Thu, 5 Mar - Sun, 8 Mar
JetBlue Logo
07:25 - 00:44
LHR
-
BQN
21h 19m
1 stop
JetBlue Logo
01:32 - 20:45
BQN
-
LHR
15h 13m
1 stop
£369JetBlue
Thu, 5 Mar - Sun, 8 Mar
JetBlue Logo
08:05 - 03:49
LHR
-
SJU
23h 44m
1 stop
JetBlue Logo
06:30 - 20:45
SJU
-
LHR
34h 15m
1 stop
£408JetBlue
Sat, 7 Mar - Sat, 14 Mar
JetBlue Logo
07:25 - 00:29
LHR
-
SJU
21h 04m
1 stop
JetBlue Logo
17:22 - 09:30
SJU
-
LHR
12h 08m
1 stop
£415JetBlue
Tue, 24 Feb - Wed, 11 Mar
JetBlue Logo
12:20 - 13:41
LHR
-
SJU
29h 21m
1 stop
JetBlue Logo
01:30 - 06:55
SJU
-
LHR
25h 25m
1 stop
£420JetBlue
Sat, 14 Mar - Sun, 22 Mar
Multiple Airlines Logo
10:50 - 02:57
LHR
-
BQN
20h 07m
1 stop
Multiple Airlines Logo
02:42 - 06:50
BQN
-
LHR
24h 08m
2 stops
£625Multiple Airlines
Thu, 5 Mar - Sun, 8 Mar
United Airlines Logo
12:50 - 23:57
LHR
-
BQN
15h 07m
1 stop
United Airlines Logo
00:09 - 06:40
BQN
-
LHR
26h 31m
2 stops
£860United Airlines
Sun, 1 Mar - Mon, 9 Mar
United Airlines Logo
16:40 - 16:11
LHR
-
MAZ
28h 31m
2 stops
United Airlines Logo
13:19 - 10:40
MAZ
-
LHR
16h 21m
2 stops
£1,570United Airlines
Sat, 18 Apr - Wed, 22 Apr
United Airlines Logo
08:00 - 16:11
LHR
-
MAZ
37h 11m
2 stops
United Airlines Logo
13:19 - 20:40
MAZ
-
LHR
26h 21m
2 stops
£1,572United Airlines
Sat, 18 Apr - Wed, 22 Apr

JetBlue flights from London Heathrow Airport to Puerto Rico

Our best JetBlue deals on London Heathrow Airport to Puerto Rico flight tickets
JetBlue
1 Mar
LHR07:45London Heathrow
21h 14m
1 stop
BQN00:59Aguadilla Borinquen
9 Mar
BQN01:32Aguadilla Borinquen
16h 08m
1 stop
LHR21:40London Heathrow
£367
JetBlue
5 Mar
LHR07:25London Heathrow
21h 19m
1 stop
BQN00:44Aguadilla Borinquen
8 Mar
BQN01:32Aguadilla Borinquen
15h 13m
1 stop
LHR20:45London Heathrow
£368
JetBlue
5 Mar
LHR07:25London Heathrow
21h 19m
1 stop
BQN00:44Aguadilla Borinquen
8 Mar
BQN01:32Aguadilla Borinquen
15h 13m
1 stop
LHR20:45London Heathrow
£369

TAP AIR PORTUGAL flights from London Heathrow Airport to Puerto Rico

Our best TAP AIR PORTUGAL deals on London Heathrow Airport to Puerto Rico flight tickets
TAP AIR PORTUGAL
31 Jan
LHR06:00London Heathrow
20h 55m
2 stops
SJU22:55San Juan Luis Munoz Marin Intl
7 Feb
SJU06:09San Juan Luis Munoz Marin Intl
29h 21m
2 stops
LHR15:30London Heathrow
£631
TAP AIR PORTUGAL
22 Jan
LHR06:00London Heathrow
21h 48m
2 stops
SJU23:48San Juan Luis Munoz Marin Intl
29 Jan
SJU16:40San Juan Luis Munoz Marin Intl
22h 15m
2 stops
LHR18:55London Heathrow
£645
TAP AIR PORTUGAL
22 Jan
LHR12:25London Heathrow
27h 48m
2 stops
SJU12:13San Juan Luis Munoz Marin Intl
29 Jan
SJU16:40San Juan Luis Munoz Marin Intl
22h 15m
2 stops
LHR18:55London Heathrow
£647

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport 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 22 January 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Sun 1/3

07:45-00:59

1 stop21h 14m

Aguadilla Borinquen

Mon 9/3

01:32-21:40

1 stop16h 08m

£367

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Thu 5/3

07:25-00:44

1 stop21h 19m

Aguadilla Borinquen

Sun 8/3

01:32-20:45

1 stop15h 13m

£368

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Thu 5/3

07:25-00:44

1 stop21h 19m

Aguadilla Borinquen

Sun 8/3

01:32-20:45

1 stop15h 13m

£369

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 7/3

08:05-03:49

1 stop23h 44m

San Juan Luis Munoz Marin Intl

Sat 14/3

06:30-20:45

1 stop34h 15m

£408

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 24/2

07:25-00:29

1 stop21h 04m

San Juan Luis Munoz Marin Intl

Wed 11/3

17:22-09:30

1 stop12h 08m

£415

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 14/3

12:20-13:41

1 stop29h 21m

San Juan Luis Munoz Marin Intl

Sun 22/3

01:30-06:55

1 stop25h 25m

£420

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Thu 5/3

10:50-02:57

1 stop20h 07m

Aguadilla Borinquen

Sun 8/3

02:42-06:50

2 stops24h 08m

£625

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Sun 1/3

12:50-23:57

1 stop15h 07m

Aguadilla Borinquen

Mon 9/3

00:09-06:40

2 stops26h 31m

£860

LondonMayagüez

LHR - MAZ

LHRMAZ

London Heathrow

Sat 18/4

16:40-16:11

2 stops28h 31m

Mayagüez Eugenio M De Hostos

Wed 22/4

13:19-10:40

2 stops16h 21m

£1,570

LondonMayagüez

LHR - MAZ

LHRMAZ

London Heathrow

Sat 18/4

08:00-16:11

2 stops37h 11m

Mayagüez Eugenio M De Hostos

Wed 22/4

13:19-20:40

2 stops26h 21m

£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 Heathrow Airport 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 Heathrow Airport to Puerto Rico. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £549. If you don’t want to visit Puerto Rico in September, then you should wait until March to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £567.

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 Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around £650 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 Heathrow Airport for as low as £522 on momondo.

Cheap London Heathrow Airport to Puerto Rico flight deals and tips

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

Fastest flight time

17h 09m

Direct flights

None
The fastest flight from London Heathrow Airport to Puerto Rico takes 17h 09m
There are no direct flights from London Heathrow Airport to Puerto Rico. There are no popular flight routes from London Heathrow Airport to Puerto Rico.
Search flight deals

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

    Prices for flights from London Heathrow Airport to Puerto Rico are updated daily.

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

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

  • What documentation or ID do you need to fly to Puerto Rico?

    The required travel and health documents for your Puerto Rico trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Puerto Rico. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from London Heathrow Airport to Puerto Rico

Compare and see reviews for airlines that fly from London Heathrow Airport to Puerto Rico with momondo
Airline
Rating
Free Cancellation
Price
Virgin AtlanticPriceFrom £344Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
JetBluePriceFrom £432Free CancellationRating
7.2
2,891 reviews
Search JetBlue flights
FinnairPriceFrom £435Free CancellationRating
7.6
1,353 reviews
Search Finnair flights
IberiaPriceFrom £500Free CancellationRating
7.0
3,097 reviews
Search Iberia flights
IcelandairPriceFrom £504Free CancellationRating
7.1
602 reviews
Search Icelandair flights
British AirwaysPriceFrom £538Free CancellationRating
6.7
7,690 reviews
Search British Airways flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Puerto Rico. momondo saves you time and could save you money on your trip.

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

All flight searches from London to Puerto Rico on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Puerto Rico.

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

Yes momondo offers price alerts on flights to Puerto Rico from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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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 £366
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