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Cheap flights from London Heathrow Airport to Puerto Rico from £313

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 15/11. 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
08:05 - 19:13LHR-SJU
15h 08m1 stop
JetBlue Logo
01:59 - 20:45SJU-LHR
14h 46m1 stop
£482JetBlue
Find Deal
Sat, 7 Feb - Sat, 14 Feb
Icelandair Logo
08:05 - 08:49LHR-SJU
28h 44m2 stops
Icelandair Logo
05:26 - 09:30SJU-LHR
24h 04m1 stop
£483Icelandair
Find Deal
Mon, 17 Nov - Sun, 23 Nov
Icelandair Logo
08:05 - 09:46LHR-SJU
29h 41m2 stops
Icelandair Logo
08:15 - 09:30SJU-LHR
21h 15m1 stop
£484Icelandair
Find Deal
Sat, 24 Jan - Sun, 1 Feb
JetBlue Logo
08:05 - 02:33LHR-SJU
22h 28m1 stop
JetBlue Logo
07:20 - 20:45SJU-LHR
33h 25m1 stop
£485JetBlue
Find Deal
Sat, 7 Feb - Sun, 15 Feb
Icelandair Logo
07:25 - 21:54LHR-SJU
18h 29m1 stop
Icelandair Logo
14:33 - 21:40SJU-LHR
27h 07m2 stops
£487Icelandair
Find Deal
Wed, 12 Nov - Wed, 19 Nov
Avianca Logo
21:40 - 17:05LHR-SJU
23h 25m1 stop
Avianca Logo
18:30 - 14:35SJU-LHR
16h 05m1 stop
£490Avianca
Find Deal
Tue, 3 Mar - Tue, 10 Mar
Avianca Logo
21:40 - 11:35LHR-SJU
17h 55m1 stop
Avianca Logo
18:30 - 14:35SJU-LHR
16h 05m1 stop
£493Avianca
Find Deal
Mon, 26 Jan - Thu, 5 Feb
United Airlines Logo
07:30 - 23:57LHR-BQN
20h 27m2 stops
United Airlines Logo
01:09 - 07:10BQN-LHR
26h 01m2 stops
£885United Airlines
Find Deal
Sat, 15 Nov - Tue, 18 Nov
United Airlines Logo
12:45 - 23:57LHR-BQN
15h 12m1 stop
United Airlines Logo
01:09 - 06:40BQN-LHR
25h 31m2 stops
£890United Airlines
Find Deal
Sat, 15 Nov - Tue, 18 Nov
Air Canada Logo
09:00 - 23:57LHR-BQN
18h 57m2 stops
Air Canada Logo
01:09 - 07:10BQN-LHR
26h 01m2 stops
£1,351Air Canada
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Sat, 15 Nov - Tue, 18 Nov

Icelandair flights from London Heathrow Airport to Puerto Rico

Our best Icelandair deals on London Heathrow Airport to Puerto Rico flight tickets
Icelandair
17 Nov
LHR08:05London Heathrow
28h 44m
2 stops
SJU08:49San Juan Luis Munoz Marin Intl
23 Nov
SJU05:26San Juan Luis Munoz Marin Intl
24h 04m
1 stop
LHR09:30London Heathrow
£483
Find similar
Icelandair
24 Jan
LHR08:05London Heathrow
29h 41m
2 stops
SJU09:46San Juan Luis Munoz Marin Intl
1 Feb
SJU08:15San Juan Luis Munoz Marin Intl
21h 15m
1 stop
LHR09:30London Heathrow
£484
Find similar
Icelandair
12 Nov
LHR07:25London Heathrow
18h 29m
1 stop
SJU21:54San Juan Luis Munoz Marin Intl
19 Nov
SJU14:33San Juan Luis Munoz Marin Intl
27h 07m
2 stops
LHR21:40London Heathrow
£487
Find similar

Avianca flights from London Heathrow Airport to Puerto Rico

Our best Avianca deals on London Heathrow Airport to Puerto Rico flight tickets
Avianca
3 Mar
LHR21:40London Heathrow
23h 25m
1 stop
SJU17:05San Juan Luis Munoz Marin Intl
10 Mar
SJU18:30San Juan Luis Munoz Marin Intl
16h 05m
1 stop
LHR14:35London Heathrow
£490
Find similar
Avianca
26 Jan
LHR21:40London Heathrow
17h 55m
1 stop
SJU11:35San Juan Luis Munoz Marin Intl
5 Feb
SJU18:30San Juan Luis Munoz Marin Intl
16h 05m
1 stop
LHR14:35London Heathrow
£493
Find similar
Avianca
2 Mar
LHR21:40London Heathrow
23h 25m
1 stop
SJU17:05San Juan Luis Munoz Marin Intl
11 Mar
SJU18:30San Juan Luis Munoz Marin Intl
16h 05m
1 stop
LHR14:35London Heathrow
£495
Find similar

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 17 October 2025.
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

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 7/2

08:05-19:13

1 stop15h 08m

San Juan Luis Munoz Marin Intl

Sat 14/2

01:59-20:45

1 stop14h 46m

£482

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 17/11

08:05-08:49

2 stops28h 44m

San Juan Luis Munoz Marin Intl

Sun 23/11

05:26-09:30

1 stop24h 04m

£483

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 24/1

08:05-09:46

2 stops29h 41m

San Juan Luis Munoz Marin Intl

Sun 1/2

08:15-09:30

1 stop21h 15m

£484

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 7/2

08:05-02:33

1 stop22h 28m

San Juan Luis Munoz Marin Intl

Sun 15/2

07:20-20:45

1 stop33h 25m

£485

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 12/11

07:25-21:54

1 stop18h 29m

San Juan Luis Munoz Marin Intl

Wed 19/11

14:33-21:40

2 stops27h 07m

£487

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 3/3

21:40-17:05

1 stop23h 25m

San Juan Luis Munoz Marin Intl

Tue 10/3

18:30-14:35

1 stop16h 05m

£490

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 26/1

21:40-11:35

1 stop17h 55m

San Juan Luis Munoz Marin Intl

Thu 5/2

18:30-14:35

1 stop16h 05m

£493

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Sat 15/11

07:30-23:57

2 stops20h 27m

Aguadilla Borinquen

Tue 18/11

01:09-07:10

2 stops26h 01m

£885

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Sat 15/11

12:45-23:57

1 stop15h 12m

Aguadilla Borinquen

Tue 18/11

01:09-06:40

2 stops25h 31m

£890

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Sat 15/11

09:00-23:57

2 stops18h 57m

Aguadilla Borinquen

Tue 18/11

01:09-07:10

2 stops26h 01m

£1,351

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 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 February to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £562.

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 Heathrow Airport. The lowest ticket price found for a Monday departure recently was £480. 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 £641.

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

Flying to Puerto Rico from London Heathrow Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as £567 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 £725 on average. Flights to Puerto Rico from London Heathrow Airport 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 Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around £637 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

Direct flights

None
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 £332Free CancellationRating
7.5
670 reviews
Search Virgin Atlantic flights
JetBluePriceFrom £438Free CancellationRating
7.2
2,907 reviews
Search JetBlue flights
FinnairPriceFrom £449Free CancellationRating
7.6
1,332 reviews
Search Finnair flights
IcelandairPriceFrom £465Free CancellationRating
7.0
556 reviews
Search Icelandair flights
IberiaPriceFrom £510Free CancellationRating
7.0
2,994 reviews
Search Iberia flights
British AirwaysPriceFrom £538Free CancellationRating
6.7
7,457 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

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