Find flights
When to book
Airlines
FAQs

Cheap flights from Puerto Rico to London Heathrow Airport from £252

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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — LHR
30 Mar — 6 Apr1
1 adult

Cheap flight deals from Puerto Rico to Heathrow

Keep the following information in mind while searching for Puerto Rico to Heathrow flight deals. Data was last updated 25 March 2025.

Round-trip from

£503

One-way from

£252

Popular in

June

Cheapest in

September

Average price

£532
KLM
  • KLM
  • 17/5-26/5
  • 2 total stops
  • 29h 20m total
  • Puerto Rico to London
Search Deals
JetBlue
  • JetBlue
  • 2/4
  • 1 total stop
  • 14h 53m total
  • Puerto Rico to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£86 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from Puerto Rico to Heathrow

Cheapest flights from Puerto Rico to Heathrow
Explore the most affordable flight options available from Puerto Rico to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 March 2025.

Tue 28/1001:05SJU - LHR
2 stops26h 05mAir Canada
Fri 7/1118:00LHR - SJU
1 stop24h 45mAir Canada
Deal found 24/3£503
Mon 14/413:19SJU - LHR
1 stop14h 31mKLM
Fri 25/410:55LHR - SJU
1 stop17h 53mKLM
Deal found 24/3£505
Wed 30/406:00SJU - LHR
1 stop19h 30mJetBlue
Wed 14/508:25LHR - SJU
1 stop20h 32mJetBlue
Deal found 25/3£507
Wed 10/913:27SJU - LHR
1 stop13h 38mDelta
Thu 18/910:55LHR - SJU
1 stop16h 47mDelta
Deal found 25/3£509
Wed 29/1007:35SJU - LHR
2 stops18h 45mUnited Airlines
Fri 7/1112:05LHR - SJU
2 stops16h 31mUnited Airlines
Deal found 24/3£510
Wed 23/415:34SJU - LHR
1 stop16h 56mMultiple Airlines
Wed 30/420:55LHR - SJU
2 stops31h 53mMultiple Airlines
Deal found 24/3£510
Sun 24/812:05SJU - LHR
1 stop13h 50mAmerican Airlines
Mon 8/907:50LHR - SJU
1 stop15h 40mAmerican Airlines
Deal found 24/3£520
Mon 25/813:54SJU - LHR
1 stop13h 11mBritish Airways
Mon 8/907:50LHR - SJU
1 stop15h 40mBritish Airways
Deal found 24/3£520
Wed 10/914:28SJU - LHR
2 stops35h 17mAir France
Thu 18/908:55LHR - SJU
2 stops18h 47mAir France
Deal found 24/3£567
Tue 25/317:29SJU - LHR
1 stop14h 51mIberia
Tue 1/413:40LHR - SJU
1 stop15h 00mIberia
Deal found 24/3£614
Tue 22/402:45SJU - LHR
2 stops24h 15mAer Lingus
Wed 30/413:25LHR - SJU
2 stops17h 04mAer Lingus
Deal found 24/3£655
Sat 19/701:35PSE - LHR
1 stop14h 10mJetBlue
Thu 31/711:55LHR - PSE
1 stop19h 03mJetBlue
Deal found 24/3£858

Cheapflights Fare Finder

Customise your flight search to find flights from Puerto Rico to Heathrow 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 25 March 2025.
Use the filters below to find and compare flights from Puerto Rico to London Heathrow Airport that are best for you.

Fly from

Puerto Rico

Fly to

Heathrow

Route

Depart

Return

Price

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 17/5

13:12-08:50

1 stop14h 38m

London Heathrow

Mon 26/5

13:05-22:47

1 stop14h 42m

£503

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 30/4

06:00-06:30

1 stop19h 30m

London Heathrow

Wed 14/5

08:25-23:57

1 stop20h 32m

£507

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 10/9

13:27-08:05

1 stop13h 38m

London Heathrow

Thu 18/9

10:55-22:42

1 stop16h 47m

£509

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 22/4

13:25-10:40

2 stops16h 15m

London Heathrow

Wed 30/4

09:30-13:45

2 stops33h 15m

£510

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 23/4

15:34-13:30

1 stop16h 56m

London Heathrow

Wed 30/4

20:55-23:48

2 stops31h 53m

£510

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 24/8

12:05-06:55

1 stop13h 50m

London Heathrow

Mon 8/9

07:50-18:30

1 stop15h 40m

£520

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 25/8

13:54-08:05

1 stop13h 11m

London Heathrow

Mon 8/9

07:50-18:30

1 stop15h 40m

£520

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 10/4

01:05-21:00

2 stops38h 55m

London Heathrow

Sat 19/4

08:30-13:50

1 stop34h 20m

£557

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 22/4

00:58-20:45

1 stop14h 47m

London Heathrow

Wed 30/4

08:25-01:29

1 stop22h 04m

£565

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 10/9

14:28-06:45

2 stops35h 17m

London Heathrow

Thu 18/9

08:55-22:42

2 stops18h 47m

£567

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from Puerto Rico to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Puerto Rico 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 Puerto Rico to London Heathrow Airport

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

Currently, January is the cheapest month in which you can book a flight from Puerto Rico to London Heathrow Airport (average of £112). Flying from Puerto Rico to London Heathrow Airport in August is currently the most expensive (average of £164). 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 PR to LHR?

Find hourly flight availability from Puerto Rico to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 March 2025.

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

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 25 March 2025.
Get a feel of what it's like to fly with Delta, KLM and Air France from Puerto Rico to London by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Comfort

8.0

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,890 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Comfort

8.0

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,318 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Comfort

8.0

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,423 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Comfort

8.0

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,605 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Comfort

8.0

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
JetBlue
7.3
Good
2,923 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Comfort

8.0

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

  • What are the cheapest airlines to fly from Puerto Rico to London Heathrow Airport one-way?

    The cheapest airline one-way is JetBlue, with whom users have recently found tickets for as low as £252. However, be on the lookout for offers from United Airlines and Air France, as they are both options that can get you from Puerto Rico to London Heathrow Airport for a low price.

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

    The most popular flight routes from Puerto Rico to London Heathrow Airport are San Juan Luis Munoz Marin Intl - London Heathrow, Culebra - London Heathrow and Ponce Mercedita - London Heathrow.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Puerto Rico to Heathrow 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 Puerto Rico to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Puerto Rico to London Heathrow Airport (average of £112). Flying from Puerto Rico to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Travelling to a place near Puerto Rico?

Book flights to Puerto Rico if you plan to visit one of these locations
Hounslow
Deal
Milton Keynes
Gatwick
Croydon
Luton
Slough
Eastbourne
Wembley
Northampton
Swindon
Hayes
Ilford
Crawley
Southend-on-Sea
Winchester
Maidstone
Ipswich
Watford
Southall

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Puerto Rico to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Bridgetown to Heathrow flights
Luis Munoz Marin Intl to Heathrow flights
Port of Spain to Heathrow flights
Saint Thomas Island to Heathrow flights
Luis Munoz Marin Intl to Gatwick flights
Bridgetown to Gatwick flights
George Town to Heathrow flights
Kingston to Heathrow flights
Montego Bay to Heathrow flights
Kingston to Gatwick flights
Port of Spain to Gatwick flights
Nassau to Heathrow flights
St. John's to Gatwick flights
Santo Domingo to Heathrow flights
Road Town to Gatwick flights
Road Town to Heathrow flights
George Town to Gatwick flights
Santo Domingo to Gatwick flights
St. George's to Heathrow flights
Montego Bay to Gatwick flights
Bridgetown to London City flights
Castries to Gatwick flights
St. George's to Gatwick flights
Nassau to Gatwick flights
Basseterre to Gatwick flights
Castries to Heathrow flights
Providenciales to Heathrow flights
St. John's to Heathrow flights
Punta Cana to Gatwick flights
Roseau to Heathrow flights
Port of Spain to Stansted flights
Montego Bay to London City flights
Castries to London City flights
Havana to Heathrow flights
Oranjestad to Heathrow flights
Kingstown to Gatwick flights
Montego Bay to Luton flights
Kingston to Stansted flights
Punta Cana to Heathrow flights
Pointe-à-Pitre to Gatwick flights

Top airline flying from Puerto Rico to Heathrow

Discover the top airline that operate flights from Puerto Rico to Heathrow. 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 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£534Average£818FlexibilityNo 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 Puerto Rico to Heathrow?

Cheapflights helps you search for flights from Puerto Rico to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights simply makes it quick and affordable to book flights from Puerto Rico to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes, we can. To see specific flights from Puerto Rico to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.