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Cheap flights from London Heathrow Airport to Puerto Rico from £325

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SJU
14 Nov — 21 Nov1
1 adult
1 adult, Economy

Cheap flight deals from Heathrow to Puerto Rico

Keep the following information in mind while searching for Heathrow to Puerto Rico flight deals. Data was last updated 15 October 2025.

Round-trip from

£489

One-way from

£325

Popular in

July

Cheapest in

September

Average price

£654
JetBlue
  • JetBlue
  • 7/11-15/11
  • 2 total stops
  • 52h 01m total
  • London to Puerto Rico
Search Deals
15/11
  • 15/11
  • 3 total stops
  • 35h 24m total
  • London to Puerto Rico
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£71 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Heathrow to Puerto Rico

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Puerto Rico
Explore the most affordable flight options available from Heathrow to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 October 2025.

Fri 7/1108:05LHR - SJU
1 stop23h 43mIcelandair
Sat 15/1106:10SJU - LHR
1 stop20h 45mIcelandair
Deal found 14/10£488
Thu 6/1107:25LHR - SJU
2 stops39h 32mIcelandair
Sat 15/1106:27SJU - LHR
2 stops20h 28mIcelandair
Deal found 13/10£491
Sat 15/1109:20LHR - SJU
2 stops52h 33mIcelandair
Mon 24/1113:10SJU - LHR
1 stop28h 30mIcelandair
Deal found 14/10£493
Wed 12/1107:25LHR - SJU
1 stop18h 29mJetBlue
Thu 27/1113:10SJU - LHR
1 stop16h 20mJetBlue
Deal found 13/10£494
Thu 6/1107:25LHR - SJU
1 stop24h 23mJetBlue
Sat 15/1106:10SJU - LHR
1 stop20h 45mJetBlue
Deal found 14/10£500
Tue 4/1107:25LHR - SJU
2 stops20h 56mIcelandair
Sat 8/1106:27SJU - LHR
2 stops20h 28mIcelandair
Deal found 13/10£505
Fri 7/1109:20LHR - SJU
2 stops34h 02mIcelandair
Sun 16/1122:05SJU - LHR
2 stops31h 25mIcelandair
Deal found 13/10£506
Sat 15/1109:20LHR - SJU
2 stops30h 05mIcelandair
Sun 23/1106:01SJU - LHR
2 stops23h 29mIcelandair
Deal found 14/10£508
Fri 12/1212:20LHR - SJU
2 stops30h 25mIcelandair
Thu 8/120:15SJU - LHR
2 stops30h 40mIcelandair
Deal found 13/10£509
Sat 15/1108:05LHR - BQN
1 stop18h 32mJetBlue
Sun 30/1107:02BQN - LHR
1 stop33h 43mJetBlue
Deal found 14/10£892
Sat 15/1110:50LHR - BQN
1 stop20h 14mMultiple Airlines
Sat 29/1103:55BQN - LHR
2 stops25h 05mMultiple Airlines
Deal found 14/10£1,023
Fri 12/1212:20LHR - BQN
1 stop14h 30mJetBlue
Thu 8/106:15BQN - LHR
1 stop23h 15mJetBlue
Deal found 14/10£1,029

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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, Cheapflights users made 858,174 searches. Data last updated 15 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

Heathrow

Fly to

Puerto Rico

Route

Depart

Return

Price

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 12/11

07:25-21:54

1 stop18h 29m

San Juan Luis Munoz Marin Intl

Tue 25/11

05:01-21:40

1 stop12h 39m

£494

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 10/11

08:05-18:20

1 stop14h 15m

San Juan Luis Munoz Marin Intl

Mon 24/11

01:59-21:40

1 stop15h 41m

£512

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 10/11

09:20-23:59

1 stop18h 39m

San Juan Luis Munoz Marin Intl

Thu 27/11

13:10-09:30

1 stop16h 20m

£512

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 13/11

12:20-03:48

1 stop19h 28m

San Juan Luis Munoz Marin Intl

Tue 25/11

05:01-21:40

1 stop12h 39m

£524

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 6/12

12:20-03:48

1 stop19h 28m

San Juan Luis Munoz Marin Intl

Wed 10/12

05:09-21:40

1 stop12h 31m

£533

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 14/11

09:20-23:54

1 stop18h 34m

San Juan Luis Munoz Marin Intl

Thu 27/11

13:10-09:30

1 stop16h 20m

£542

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 15/11

09:20-19:02

1 stop13h 42m

San Juan Luis Munoz Marin Intl

Tue 25/11

05:01-21:40

1 stop12h 39m

£542

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 21/11

12:20-03:48

1 stop19h 28m

San Juan Luis Munoz Marin Intl

Mon 15/12

10:00-09:30

1 stop19h 30m

£542

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 13/11

12:20-03:48

1 stop19h 28m

San Juan Luis Munoz Marin Intl

Sun 23/11

01:59-20:45

1 stop14h 46m

£542

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 24/1

09:20-02:33

2 stops21h 13m

San Juan Luis Munoz Marin Intl

Sat 31/1

06:00-22:00

1 stop12h 00m

£546

Flights are sorted by cheapest return flights first.

Deals found on 13/10

Showing 1-10 of 29 results
1
2
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Best time to book a flight from Heathrow to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Puerto Rico

What is the cheapest month to book a flight from London Heathrow Airport to Puerto Rico?

Currently, July is the cheapest month in which you can book a flight from London Heathrow Airport to Puerto Rico (average of £427). Flying from London Heathrow Airport to Puerto Rico in December is currently the most expensive (average of £539). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to PR?

Find hourly flight availability from Heathrow to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 October 2025.

When flying from London Heathrow Airport to Puerto Rico, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 34% versus a flight at midday.

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Puerto Rico. Reviews last updated 15 October 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Puerto Rico, such as Finnair, JetBlue, andIcelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,332 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Finnair
7.6
Good
1,332 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
JetBlue
7.2
Good
2,905 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Icelandair
7.0
Good
556 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Iberia
7.0
Good
2,990 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
British Airways
6.7
Okay
7,457 reviews
Finnair
7.6
Good
1,332 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Heathrow Airport to Puerto Rico?

    JetBlue and United Airlines can get you from London Heathrow Airport to Puerto Rico in just under 18h 27m. Your travel time can differ by up to 02m. The distance between London Heathrow Airport and Puerto Rico is about 4224 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from London Heathrow Airport to Puerto Rico?

    Most travelers choose London Heathrow - San Juan Luis Munoz Marin Intl, London Heathrow - Aguadilla Borinquen or London Heathrow - Mayagüez Eugenio M De Hostos when deciding on the best route from London Heathrow Airport to Puerto Rico.

  • Can I find deals for flights from Heathrow to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Heathrow to Puerto Rico flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Puerto Rico?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Puerto Rico.

  • Can I find deals for business class flights from Heathrow to Puerto Rico?

    Yes. Cheapflights offers flight deals from Heathrow to Puerto Rico by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Puerto Rico?

    Currently, July is the cheapest month in which you can book a flight from London Heathrow Airport to Puerto Rico (average of £427). Flying from London Heathrow Airport to Puerto Rico in December is currently the most expensive (average of £539). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Heathrow to Puerto Rico

Discover the top 6 airlines that operate flights from Heathrow to Puerto Rico. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£335Average£1,133FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£442Average£599FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
FinnairCheapest£453Average£554FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IcelandairCheapest£470Average£636FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
IberiaCheapest£514Average£735FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£543Average£860FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Puerto Rico?

Cheapflights makes it easy to find Heathrow to Puerto Rico flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Puerto Rico?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Puerto Rico.

Can Cheapflights find flights from Heathrow to Puerto Rico with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Puerto Rico flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Heathrow to Puerto Rico become cheaper?

Of course! You can now track prices for flights from Heathrow to Puerto Rico and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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