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Cheap flights from Puerto Rico to London Heathrow Airport from £200

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
19 Jun — 26 Jun1
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 20 May 2026.

Tue 6/1013:25
SJU
-
LHR
1 stop12h 50m
United Airlines
Thu 8/1006:50
LHR
-
SJU
2 stops22h 00m
United Airlines
Deal found 17/5£517
Wed 4/1107:00
SJU
-
LHR
1 stop19h 55m
Virgin Atlantic
Wed 11/1106:20
LHR
-
SJU
2 stops20h 53m
Virgin Atlantic
Deal found 18/5£536
Thu 26/1113:55
SJU
-
LHR
1 stop17h 45m
Virgin Atlantic
Thu 3/1206:20
LHR
-
SJU
2 stops21h 00m
Virgin Atlantic
Deal found 17/5£565
Sun 24/505:05
PSE
-
LHR
2 stops27h 50m
Multiple Airlines
Tue 26/515:10
LHR
-
PSE
2 stops37h 48m
Multiple Airlines
Deal found 20/5£1,321

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 20 May 2026.

Round-trip from

£517

One-way from

£200

Popular in

June

Cheapest in

February

Average price

£641
United Airlines
  • United Airlines
  • 6/10-8/10
  • 3 total stops
  • 34h 50m total
  • Puerto Rico to London
Search Deals
Virgin Atlantic
  • Virgin Atlantic
  • 5/10
  • 1 total stop
  • 17h 33m total
  • Puerto Rico to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£105 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 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 20 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

Wed 11/11

07:00-07:05

2 stops20h 05m

London Heathrow

Tue 24/11

15:50-14:00

2 stops26h 10m

£637

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

£654

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 8/10

01:00-20:40

1 stop14h 40m

London Heathrow

Tue 20/10

09:30-23:50

2 stops19h 20m

£656

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 19/8

17:49-13:15

1 stop14h 26m

London Heathrow

Sun 23/8

11:45-23:52

1 stop17h 07m

£669

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 5/11

07:30-06:20

2 stops18h 50m

London Heathrow

Tue 10/11

08:55-23:13

2 stops18h 18m

£671
Fastest return journey

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 7/11

14:06-08:05

1 stop13h 59m

London Heathrow

Sat 14/11

12:30-23:13

1 stop14h 43m

£700

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 11/9

14:26-13:05

2 stops17h 39m

London Heathrow

Sun 20/9

18:35-16:31

2 stops26h 56m

£703

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 24/9

12:58-13:05

2 stops19h 07m

London Heathrow

Mon 28/9

20:05-13:16

2 stops22h 11m

£706

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 14/8

13:25-10:40

2 stops16h 15m

London Heathrow

Fri 28/8

12:05-23:50

2 stops16h 45m

£716

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 21/7

13:25-07:15

1 stop12h 50m

London Heathrow

Wed 5/8

09:30-21:24

2 stops16h 54m

£758

Flights are sorted by cheapest return flights first.

Deals found on 16/5

Showing 1-10 of 17 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 45 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 20 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
2,982 reviews
Check prices

Boarding

7.3

Crew

7.9

Overall

7.2

Comfort

7.5

Entertainment

7.2

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
2,982 reviews
JetBlue
7.2
Good
2,982 reviews
Check prices

Boarding

7.3

Crew

7.9

Overall

7.2

Comfort

7.5

Entertainment

7.2

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 12h 45m. Fly via Delta, 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
Croydon
Northampton
Wembley
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Watford
Romford
Kingston upon Thames
Eastbourne
Ipswich
Swindon
Guildford
Southall

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 20 May 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£573Average£682FlexibilityNo 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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