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Cheap flights from Puerto Rico to London Heathrow Airport from £197

SJU — LHR
17 Oct — 24 Oct1
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

Thu 5/1115:17 -
1 stop12h 58m
Tue 10/1106:05 -
1 stop14h 35m
Deal found 12/9£480
Wed 28/1018:10 -
1 stop12h 25m
Mon 9/1106:15 -
1 stop14h 25m
Deal found 13/9£489
Thu 5/1115:59 -
1 stop34h 26m
Tue 10/1106:20 -
2 stops20h 55m
Deal found 12/9£495
Wed 28/1014:59 -
1 stop16h 41m
Mon 9/1106:20 -
2 stops20h 55m
Deal found 13/9£503
Wed 4/1113:00 -
1 stop13h 45m
Wed 11/1111:25 -
1 stop12h 35m
Deal found 14/9£506
Sat 19/913:25 -
1 stop26h 55m
Mon 21/906:50 -
2 stops36h 03m
Deal found 15/9£508
Wed 11/1118:10 -
1 stop19h 05m
Tue 24/1108:25 -
1 stop15h 35m
Deal found 17/9£509
Wed 14/1018:35 -
1 stop16h 00m
Wed 21/1022:05 -
1 stop18h 20m
Deal found 15/9£510
Thu 26/1118:10 -
1 stop15h 20m
Thu 3/1211:15 -
1 stop14h 23m
Deal found 16/9£511
Thu 5/1112:50 -
1 stop21h 45m
Mon 9/1121:35 -
1 stop23h 20m
Deal found 16/9£512
Thu 29/1012:50 -
1 stop21h 45m
Thu 5/1121:35 -
1 stop23h 20m
Deal found 14/9£512
Sat 14/1118:20 -
1 stop16h 15m
Mon 16/1121:35 -
1 stop23h 20m
Deal found 15/9£513

Find flight deals from Puerto Rico to Heathrow

Round-trip from

£480

One-way from

£197

Popular in

June

Cheapest in

February

Average price

£584
Iberia
  • Iberia
  • 5/11-10/11
  • 2 total stops
  • 27h 33m total
  • Puerto Rico to London
Search Deals
Virgin Atlantic
  • Virgin Atlantic
  • 5/10-31/12
  • 1 total stop
  • 15h 21m total
  • Puerto Rico to London
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£105 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 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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Route

Depart

Return

Price

Cheapest return flight

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Sun 4/10

01:00-10:40

2 stops28h 40m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£225

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Sun 15/11

02:05-06:40

2 stops24h 35m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£225

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 2/11

08:15-07:50

1 stop19h 35m

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

Sun 17/1

06:15-06:50

2 stops20h 35m

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

Wed 18/11

08:05-09:10

2 stops21h 05m

London Heathrow

Wed 31/12

00:00-19:00

Nonstop0h 00m

£228
Fastest return journey

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Sat 31/10

07:05-06:30

2 stops19h 25m

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

Mon 2/11

17:50-21:20

2 stops23h 30m

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

Tue 20/10

07:15-07:15

1 stop19h 00m

London Heathrow

Tue 27/10

20:10-16:49

2 stops24h 39m

£541

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Wed 18/11

07:00-07:05

2 stops20h 05m

London Heathrow

Wed 25/11

16:00-14:04

2 stops26h 04m

£541

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 28/12

16:35-09:55

1 stop13h 20m

London Heathrow

Fri 8/1

20:10-17:20

2 stops25h 10m

£562

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 £536). Flying from Puerto Rico to London Heathrow Airport in June is currently the most expensive (average of £841). 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 33 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 19h. Fly via Delta or United Airlines 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, 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, April is the cheapest month in which you can book a flight from Puerto Rico to London Heathrow Airport (average of £536). Flying from Puerto Rico to London Heathrow Airport in June is currently the most expensive (average of £841). 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?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Luton
Milton Keynes
Gatwick
Wembley
Slough
Ilford
Hayes
Northampton
Croydon
Colchester
Eastbourne
Brentford
Enfield
Southend-on-Sea
Barnet
Southall
Watford
Swindon
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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