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Cheap flights from London Heathrow Airport to Puerto Rico from £275

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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SJU
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

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 14 November 2025.

Round-trip from

£529

One-way from

£275

Popular in

December

Cheapest in

September

Average price

£594
JetBlue
  • JetBlue
  • 6/1-22/1
  • 2 total stops
  • 32h 44m total
  • London to Puerto Rico
Search Deals
7/2
  • 7/2
  • 2 total stops
  • 49h 04m total
  • London to Puerto Rico
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£22 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 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 14 November 2025.

Thu 27/1112:20LHR - SJU
1 stop15h 28mJetBlue
Thu 4/1205:15SJU - LHR
1 stop24h 15mJetBlue
Deal found 13/11£555
Mon 24/1112:20LHR - SJU
1 stop17h 37mJetBlue
Tue 9/1219:50SJU - LHR
1 stop21h 50mJetBlue
Deal found 12/11£564
Thu 27/1112:20LHR - SJU
1 stop15h 28mJetBlue
Fri 5/1208:02SJU - LHR
1 stop33h 58mJetBlue
Deal found 13/11£585
Thu 27/1109:20LHR - SJU
2 stops46h 28mIcelandair
Thu 4/1207:00SJU - LHR
2 stops22h 30mIcelandair
Deal found 13/11£586
Thu 27/1109:20LHR - SJU
2 stops52h 28mIcelandair
Fri 5/1219:48SJU - LHR
1 stop22h 12mIcelandair
Deal found 13/11£597
Tue 9/1207:25LHR - SJU
1 stop18h 29mJetBlue
Tue 16/1213:41SJU - LHR
1 stop13h 14mJetBlue
Deal found 13/11£599
Tue 9/1207:25LHR - SJU
1 stop18h 29mJetBlue
Sun 14/1213:41SJU - LHR
1 stop13h 14mJetBlue
Deal found 13/11£606
Mon 8/1209:20LHR - SJU
1 stop18h 34mJetBlue
Tue 16/1213:41SJU - LHR
1 stop13h 14mJetBlue
Deal found 13/11£615
Fri 5/1208:05LHR - SJU
1 stop17h 49mJetBlue
Fri 12/1210:00SJU - LHR
1 stop19h 30mJetBlue
Deal found 12/11£618
Sat 22/1112:15LHR - SJU
2 stops26h 34mMultiple Airlines
Fri 5/1204:10SJU - LHR
3 stops26h 40mMultiple Airlines
Deal found 13/11£621
Sat 15/1112:45LHR - BQN
1 stop15h 12mUnited Airlines
Tue 18/1101:09BQN - LHR
2 stops24h 46mUnited Airlines
Deal found 12/11£1,276
Sat 15/1109:00LHR - BQN
2 stops18h 57mAir Canada
Tue 18/1101:09BQN - LHR
2 stops28h 11mAir Canada
Deal found 11/11£1,279

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 14 November 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

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Wed 22/4

11:55-02:27

1 stop19h 32m

Aguadilla Borinquen

Thu 30/4

06:05-09:30

1 stop22h 25m

£546

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 23/1

12:25-15:35

3 stops31h 10m

San Juan Luis Munoz Marin Intl

Sat 31/1

17:00-18:55

2 stops21h 55m

£620

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 11/12

07:25-18:53

1 stop15h 28m

San Juan Luis Munoz Marin Intl

Mon 15/12

09:31-09:30

1 stop19h 59m

£627

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 8/12

09:20-23:54

1 stop18h 34m

San Juan Luis Munoz Marin Intl

Wed 17/12

13:41-06:55

1 stop13h 14m

£661

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sun 7/12

09:20-23:54

1 stop18h 34m

San Juan Luis Munoz Marin Intl

Tue 16/12

13:41-06:55

1 stop13h 14m

£689

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 28/11

08:05-17:52

1 stop13h 47m

San Juan Luis Munoz Marin Intl

Sat 29/11

01:50-20:45

1 stop14h 55m

£765

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 28/1

06:50-22:22

2 stops19h 32m

San Juan Luis Munoz Marin Intl

Wed 4/2

02:05-20:35

1 stop14h 30m

£886

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 25/12

12:20-01:59

1 stop17h 39m

San Juan Luis Munoz Marin Intl

Tue 30/12

01:59-21:40

1 stop15h 41m

£886

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 5/12

06:30-03:48

2 stops25h 18m

San Juan Luis Munoz Marin Intl

Fri 12/12

08:02-07:45

2 stops19h 43m

£897

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 26/1

12:50-00:36

1 stop15h 46m

San Juan Luis Munoz Marin Intl

Wed 4/2

02:05-20:35

1 stop14h 30m

£908

Flights are sorted by cheapest return flights first.

Deals found on 12/11

Showing 1-10 of 23 results
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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 £432). 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 14 November 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 18% 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 14 November 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
1,334 reviews
Check prices

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Entertainment

6.9

Crew

8.1

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
1,334 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Entertainment

6.9

Crew

8.1

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
2,907 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Entertainment

6.9

Crew

8.1

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
7.1
Good
578 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Entertainment

6.9

Crew

8.1

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
3,012 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Entertainment

6.9

Crew

8.1

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
7,521 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Entertainment

6.9

Crew

8.1

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 can get you from London Heathrow Airport to Puerto Rico in just under 19h 32m. Your travel time can differ by up to . The distance between London Heathrow Airport and Puerto Rico is about 4224 mi.

  • 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 £432). 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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£339Average£1,146FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£452Average£614FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
FinnairCheapest£458Average£560FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IcelandairCheapest£483Average£654FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
IberiaCheapest£515Average£760FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£549Average£880FlexibilityNo 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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