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Cheap flights from London Heathrow Airport to Puerto Rico from £298

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 20/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SJU
12 Oct — 19 Oct1
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 12 September 2025.

Round-trip from

£492

One-way from

£298

Popular in

December

Cheapest in

September

Average price

£537
Iberia
  • Iberia
  • 3/3-11/3
  • 2 total stops
  • 29h 50m total
  • London to Puerto Rico
Search Deals
20/2
  • 20/2
  • 2 total stops
  • 19h 47m total
  • London to Puerto Rico
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£11 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 September 2025
Search Deals

Find flight deals from Heathrow to Puerto Rico

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 12 September 2025.

Wed 3/1209:20LHR - SJU
1 stop18h 33mJetBlue
Tue 16/1206:15SJU - LHR
1 stop20h 40mJetBlue
Deal found 11/9£498
Tue 2/1212:20LHR - SJU
1 stop19h 29mJetBlue
Tue 16/1206:15SJU - LHR
1 stop20h 40mJetBlue
Deal found 11/9£509
Tue 2/1212:20LHR - SJU
2 stops28h 26mIcelandair
Tue 16/1213:51SJU - LHR
1 stop13h 04mIcelandair
Deal found 11/9£513
Thu 6/1109:20LHR - SJU
2 stops22h 28mIcelandair
Sat 15/1110:42SJU - LHR
2 stops18h 48mIcelandair
Deal found 10/9£536
Thu 6/1109:20LHR - SJU
1 stop18h 39mJetBlue
Sat 15/1112:30SJU - LHR
1 stop17h 00mJetBlue
Deal found 10/9£543
Fri 17/1008:15LHR - SJU
1 stop21h 42mJetBlue
Sun 26/1019:10SJU - LHR
1 stop31h 45mJetBlue
Deal found 11/9£546
Sat 1/1108:05LHR - SJU
1 stop29h 47mJetBlue
Tue 18/1115:34SJU - LHR
1 stop13h 56mJetBlue
Deal found 11/9£554
Mon 3/1112:50LHR - SJU
1 stop15h 46mUnited Airlines
Thu 13/1102:05SJU - LHR
1 stop14h 30mUnited Airlines
Deal found 10/9£554
Fri 28/1112:20LHR - SJU
1 stop19h 28mJetBlue
Fri 12/1219:20SJU - LHR
1 stop21h 25mJetBlue
Deal found 10/9£555
Fri 24/1008:25LHR - SJU
1 stop33h 24mIcelandair
Mon 3/1118:51SJU - LHR
2 stops32h 04mIcelandair
Deal found 10/9£557
Fri 28/1112:20LHR - SJU
2 stops18h 24mIcelandair
Fri 12/1212:45SJU - LHR
1 stop16h 45mIcelandair
Deal found 10/9£563
Sat 15/1109:00LHR - BQN
2 stops18h 57mAir Canada
Tue 18/1101:09BQN - LHR
2 stops39h 26mAir Canada
Deal found 10/9£980

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 12 September 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

Tue 17/2

09:20-23:00

1 stop17h 40m

San Juan Luis Munoz Marin Intl

Sun 8/3

00:59-20:45

1 stop15h 46m

£509

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 17/2

09:20-23:00

1 stop17h 40m

San Juan Luis Munoz Marin Intl

Mon 2/3

01:59-20:45

1 stop14h 46m

£509

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 18/2

09:20-19:57

1 stop14h 37m

San Juan Luis Munoz Marin Intl

Mon 9/3

15:10-09:30

1 stop14h 20m

£509

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 5/3

12:20-03:55

1 stop19h 35m

San Juan Luis Munoz Marin Intl

Mon 9/3

16:35-09:30

1 stop12h 55m

£513

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 18/2

09:20-23:00

1 stop17h 40m

San Juan Luis Munoz Marin Intl

Sat 7/3

00:59-20:45

1 stop15h 46m

£520

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 17/2

09:20-23:00

1 stop17h 40m

San Juan Luis Munoz Marin Intl

Fri 6/3

01:59-20:45

1 stop14h 46m

£520

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 20/2

07:25-21:35

1 stop18h 10m

San Juan Luis Munoz Marin Intl

Wed 4/3

12:05-06:55

1 stop14h 50m

£538

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 20/2

07:25-21:35

1 stop18h 10m

San Juan Luis Munoz Marin Intl

Mon 9/3

16:35-09:30

1 stop12h 55m

£538

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 19/2

09:20-19:57

1 stop14h 37m

San Juan Luis Munoz Marin Intl

Sun 8/3

00:59-20:45

1 stop15h 46m

£538

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 19/2

09:20-19:57

1 stop14h 37m

San Juan Luis Munoz Marin Intl

Wed 4/3

12:05-06:55

1 stop14h 50m

£538

Flights are sorted by cheapest return flights first.

Deals found on 11/9

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, April is the cheapest month in which you can book a flight from London Heathrow Airport to Puerto Rico (average of £631). Flying from London Heathrow Airport to Puerto Rico in July is currently the most expensive (average of £1,027). 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 12 September 2025.

When flying from London Heathrow Airport to Puerto Rico, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 12 September 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
1,323 reviews
Check prices

Entertainment

6.9

Food

6.7

Overall

7.6

Comfort

7.5

Crew

8.1

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Daniel,May 2025

HEL - ARN

This is a very short flight. The crew was all very friendly and helpful. The plane was clean and nice. By the time you're in the air, you're starting to descend. It's painless.
Finnair
7.6
Good
1,323 reviews
Finnair
7.6
Good
1,323 reviews
Check prices

Entertainment

6.9

Food

6.7

Overall

7.6

Comfort

7.5

Crew

8.1

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Daniel,May 2025

HEL - ARN

This is a very short flight. The crew was all very friendly and helpful. The plane was clean and nice. By the time you're in the air, you're starting to descend. It's painless.
JetBlue
7.2
Good
2,913 reviews
Finnair
7.6
Good
1,323 reviews
Check prices

Entertainment

6.9

Food

6.7

Overall

7.6

Comfort

7.5

Crew

8.1

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Daniel,May 2025

HEL - ARN

This is a very short flight. The crew was all very friendly and helpful. The plane was clean and nice. By the time you're in the air, you're starting to descend. It's painless.
Icelandair
7.0
Good
546 reviews
Finnair
7.6
Good
1,323 reviews
Check prices

Entertainment

6.9

Food

6.7

Overall

7.6

Comfort

7.5

Crew

8.1

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Daniel,May 2025

HEL - ARN

This is a very short flight. The crew was all very friendly and helpful. The plane was clean and nice. By the time you're in the air, you're starting to descend. It's painless.
Iberia
7.0
Good
2,929 reviews
Finnair
7.6
Good
1,323 reviews
Check prices

Entertainment

6.9

Food

6.7

Overall

7.6

Comfort

7.5

Crew

8.1

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Daniel,May 2025

HEL - ARN

This is a very short flight. The crew was all very friendly and helpful. The plane was clean and nice. By the time you're in the air, you're starting to descend. It's painless.
British Airways
6.7
Okay
7,361 reviews
Finnair
7.6
Good
1,323 reviews
Check prices

Entertainment

6.9

Food

6.7

Overall

7.6

Comfort

7.5

Crew

8.1

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Daniel,May 2025

HEL - ARN

This is a very short flight. The crew was all very friendly and helpful. The plane was clean and nice. By the time you're in the air, you're starting to descend. It's painless.

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 Air Canada can get you from London Heathrow Airport to Puerto Rico in just under 17h 40m. Your travel time can differ by up to 1h 17m. The distance between London Heathrow Airport and Puerto Rico is about 4179 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, April is the cheapest month in which you can book a flight from London Heathrow Airport to Puerto Rico (average of £631). Flying from London Heathrow Airport to Puerto Rico in July is currently the most expensive (average of £1,027). 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.
Heathrow to Bridgetown flights
Heathrow to Montego Bay flights
Heathrow to Kingston flights
Gatwick to Bridgetown flights
Heathrow to St. George's flights
Heathrow to Punta Cana flights
London City to Bridgetown flights
Gatwick to Montego Bay flights
London City to Montego Bay flights
Gatwick to St. John's flights
Gatwick to St. George's flights
Gatwick to Kingston flights
Heathrow to Port of Spain flights
Gatwick to Punta Cana flights
Heathrow to Kingstown flights
Heathrow to Nassau flights
Heathrow to Castries flights
Heathrow to St. John's flights
London City to Kingston flights
Heathrow to Luis Munoz Marin Intl flights
Gatwick to Castries flights
London City to Punta Cana flights
Gatwick to Port of Spain flights
Gatwick to Luis Munoz Marin Intl flights
Heathrow to George Town flights
Heathrow to Roseau flights
Heathrow to Santo Domingo flights
Heathrow to Oranjestad flights
Stansted to Punta Cana flights
London City to Castries flights
Heathrow to Castries flights
London City to Luis Munoz Marin Intl flights
Luton to Punta Cana flights
Gatwick to Havana flights
Gatwick to Nassau flights
Heathrow to Road Town flights
Heathrow to Simpson Bay flights
Gatwick to Santo Domingo flights
Gatwick to Roseau flights
Heathrow to Basseterre flights
Stansted to Montego Bay flights
Stansted to Santo Domingo flights
London City to St. John's flights
London City to Santo Domingo flights
Gatwick to Road Town flights
Heathrow to Providenciales flights
Luton to Montego Bay flights
Gatwick to George Town flights
Heathrow to Havana flights

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 12 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£341Average£907FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£446Average£587FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
FinnairCheapest£449Average£552FlexibilityNo cancel feeOn-time76%
Search Finnair flights
JetBlueCheapest£456Average£588FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IberiaCheapest£507Average£728FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£534Average£813FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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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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