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

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — LHR
28 Jun — 5 Jul1
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
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 29 May 2026.

Tue 8/913:25
SJU
-
LHR
1 stop13h 55m
United Airlines
Thu 10/906:50
LHR
-
SJU
2 stops22h 00m
United Airlines
Deal found 24/5£516
Mon 14/914:05
SJU
-
LHR
1 stop13h 55m
Iberia
Tue 29/907:50
LHR
-
SJU
1 stop12h 35m
Iberia
Deal found 25/5£534
Tue 27/1017:50
SJU
-
LHR
1 stop14h 15m
Iberia
Tue 10/1108:25
LHR
-
SJU
1 stop15h 35m
Iberia
Deal found 28/5£548
Tue 27/1013:06
SJU
-
LHR
1 stop14h 59m
Virgin Atlantic
Tue 10/1106:20
LHR
-
SJU
2 stops20h 53m
Virgin Atlantic
Deal found 28/5£557
Thu 26/1114:41
SJU
-
LHR
1 stop13h 34m
Iberia
Thu 3/1209:15
LHR
-
SJU
1 stop14h 45m
Iberia
Deal found 24/5£562
Thu 26/1113:55
SJU
-
LHR
1 stop17h 45m
Virgin Atlantic
Thu 3/1206:20
LHR
-
SJU
2 stops21h 00m
Virgin Atlantic
Deal found 25/5£569
Tue 17/1107:00
SJU
-
LHR
1 stop19h 25m
Virgin Atlantic
Wed 2/1206:20
LHR
-
SJU
2 stops21h 00m
Virgin Atlantic
Deal found 26/5£576
Tue 22/917:41
SJU
-
LHR
1 stop14h 34m
Virgin Atlantic
Sat 3/1009:20
LHR
-
SJU
1 stop17h 40m
Virgin Atlantic
Deal found 28/5£582
Fri 11/1207:15
SJU
-
LHR
1 stop19h 05m
Virgin Atlantic
Thu 24/1216:10
LHR
-
SJU
1 stop14h 25m
Virgin Atlantic
Deal found 26/5£583
Tue 29/1203:45
SJU
-
LHR
1 stop26h 30m
Virgin Atlantic
Fri 8/115:50
LHR
-
SJU
1 stop36h 00m
Virgin Atlantic
Deal found 28/5£590

Find 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 29 May 2026.

Round-trip from

£516

One-way from

£201

Popular in

June

Cheapest in

February

Average price

£663
United Airlines
  • United Airlines
  • 8/9-10/9
  • 3 total stops
  • 35h 55m total
  • Puerto Rico to London
Search Deals
Virgin Atlantic
  • Virgin Atlantic
  • 5/10
  • 1 total stop
  • 12h 43m total
  • Puerto Rico to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£110 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 29 May 2026.
Use the filters below to find and compare flights from Puerto Rico to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 17/9

14:20-11:35

1 stop16h 15m

London Heathrow

Sat 19/9

07:30-23:50

2 stops21h 20m

£600

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 29/8

18:45-20:40

1 stop20h 55m

London Heathrow

Tue 8/9

12:00-23:50

1 stop16h 50m

£676

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 19/8

16:55-10:40

1 stop12h 45m

London Heathrow

Sun 23/8

07:30-23:50

2 stops21h 20m

£677

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 14/8

16:55-10:40

1 stop12h 45m

London Heathrow

Fri 28/8

07:30-23:50

2 stops21h 20m

£677
Fastest return journey

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 24/9

13:32-08:50

1 stop14h 18m

London Heathrow

Mon 28/9

11:45-23:44

2 stops16h 59m

£680

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 24/9

12:58-10:20

2 stops16h 22m

London Heathrow

Mon 28/9

20:05-13:16

2 stops22h 11m

£705

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 29/8

12:56-13:05

2 stops19h 09m

London Heathrow

Tue 8/9

18:35-16:35

2 stops27h 00m

£723

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 24/7

07:35-06:20

1 stop17h 45m

London Heathrow

Fri 14/8

19:50-16:38

2 stops25h 48m

£727

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 21/7

14:42-13:15

1 stop17h 33m

London Heathrow

Wed 5/8

16:20-13:42

2 stops26h 22m

£756

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 13/7

17:50-13:15

1 stop14h 25m

London Heathrow

Fri 24/7

18:35-13:32

2 stops23h 57m

£790

Flights are sorted by cheapest return flights first.

Deals found on 25/5

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
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, February is the cheapest month in which you can book a flight from Puerto Rico to London Heathrow Airport (average of £75). Flying from Puerto Rico to London Heathrow Airport in June is currently the most expensive (average of £666). 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 47 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 29 May 2026.
Get a feel of what it's like to fly with JetBlue from Puerto Rico to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
JetBlue
7.2
Good
2,984 reviews
Check prices

Entertainment

7.2

Comfort

7.5

Overall

7.2

Boarding

7.3

Crew

7.9

Food

6.6

Reviews

1 / 20
10.0
Excellent

JONATHAN,Mar 2025

MDE - FLL

Why will they allow you to have electronic boarding pass to then tell you you need to go to the counter and get a paper ticket?
JetBlue
7.2
Good
2,984 reviews
JetBlue
7.2
Good
2,984 reviews
Check prices

Entertainment

7.2

Comfort

7.5

Overall

7.2

Boarding

7.3

Crew

7.9

Food

6.6

Reviews

1 / 20
10.0
Excellent

JONATHAN,Mar 2025

MDE - FLL

Why will they allow you to have electronic boarding pass to then tell you you need to go to the counter and get a paper ticket?

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.

  • 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 14h 18m. 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, 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, February is the cheapest month in which you can book a flight from Puerto Rico to London Heathrow Airport (average of £75). Flying from Puerto Rico to London Heathrow Airport in June is currently the most expensive (average of £666). 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
Milton Keynes
Northampton
Wembley
Luton
Gatwick
Croydon
Ilford
Slough
Hayes
Brentford
Colchester
Kingston upon Thames
Eastbourne
Ipswich
Watford
Swindon
Romford
Guildford
Borehamwood

Browse thousands of different options on Cheapflights for your next trip

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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 29 May 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£572Average£681FlexibilityNo cancel feeOn-time62%
Search JetBlue 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!

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