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Cheap flights from Puerto Rico to London Heathrow Airport from £201

SJU — LHR
2 Nov — 9 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Puerto Rico to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Puerto Rico to Heathrow

Tue 3/1102:05 -
1 stop15h 15m
Thu 5/1106:50 -
2 stops19h 32m
Deal found 28/9£516
Wed 28/1001:05 -
2 stops28h 15m
Fri 30/1017:30 -
2 stops31h 52m
Deal found 28/9£525
Fri 13/1102:05 -
2 stops25h 05m
Sun 15/1109:30 -
2 stops19h 06m
Deal found 28/9£527
Wed 4/1118:55 -
1 stop13h 10m
Mon 9/1107:30 -
1 stop13h 10m
Deal found 29/9£532
Sun 8/1108:05 -
2 stops24h 45m
Mon 9/1115:10 -
2 stops26h 05m
Deal found 28/9£542
Thu 26/1116:20 -
1 stop15h 20m
Thu 3/1216:00 -
1 stop35h 13m
Deal found 30/9£551
Fri 2/1016:55 -
2 stops18h 45m
Sun 4/1009:30 -
2 stops32h 04m
Deal found 28/9£562
Thu 26/1121:35 -
1 stop14h 30m
Thu 3/1211:15 -
1 stop15h 20m
Deal found 28/9£563
Mon 16/1115:17 -
1 stop16h 23m
Mon 23/1106:15 -
1 stop14h 25m
Deal found 2/10£597
Sun 8/1110:32 -
1 stop21h 33m
Sun 22/1107:30 -
1 stop13h 10m
Deal found 1/10£601

Find flight deals from Puerto Rico to Heathrow

Round-trip from

£516

One-way from

£201

Popular in

June

Cheapest in

February

Average price

£665
United Airlines
  • United Airlines
  • 3/11-5/11
  • 3 total stops
  • 34h 47m total
  • Puerto Rico to London
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Virgin Atlantic
  • Virgin Atlantic
  • 15/1-31/12
  • 1 total stop
  • 21h 35m total
  • Puerto Rico to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£123 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Puerto Rico to London Heathrow Airport that are best for you.

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Depart

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Price

Cheapest return flight

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 16/11

13:00-10:50

2 stops17h 50m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£228

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Fri 8/1

07:30-06:20

2 stops18h 50m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£229

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Tue 17/11

07:00-09:25

1 stop22h 25m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£231

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 2/11

14:52-06:40

2 stops35h 48m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£231

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Thu 12/11

07:40-08:25

2 stops20h 45m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£231

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Wed 18/11

07:00-06:20

1 stop19h 20m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£231
Fastest return journey

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Wed 11/11

13:52-07:50

1 stop13h 58m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£231

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Fri 13/11

08:25-10:25

2 stops22h 00m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£231

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Wed 6/1

15:55-20:10

2 stops24h 15m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£231

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Thu 5/11

17:50-10:50

1 stop13h 00m

London Heathrow

Tue 10/11

06:50-00:36

2 stops21h 46m

£611

Flights are sorted by cheapest return flights first.

Deals found on 1/10

Showing 1-10 of 19 resultsSorted by cheapest first
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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

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, April is the cheapest month in which you can book a flight from Puerto Rico to London Heathrow Airport (average of £545). Flying from Puerto Rico to London Heathrow Airport in June is currently the most expensive (average of £855). 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.

How far ahead should I book a flight from Puerto Rico to London Heathrow Airport?

The price you pay for your flight from Puerto Rico to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 29 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

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

    There are many flights that can get you from Puerto Rico to London Heathrow Airport in 13h. Fly via United Airlines or KLM to get the fastest option. There are 4179 mi between Puerto Rico and London Heathrow Airport. This flight may include one or multiple stops.

  • 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, Ponce Mercedita - London Heathrow and Culebra - 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, April is the cheapest month in which you can book a flight from Puerto Rico to London Heathrow Airport (average of £545). Flying from Puerto Rico to London Heathrow Airport in June is currently the most expensive (average of £855). 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 London Heathrow Airport?

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Hounslow
Milton Keynes
Luton
Gatwick
Wembley
Slough
Ilford
Hayes
Croydon
Northampton
Colchester
Eastbourne
Enfield
Brentford
Southend-on-Sea
Barnet
Southall
Watford
Stratford-upon-Avon
Kingston upon Thames

Browse thousands of different options on Cheapflights for your next trip

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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!

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