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Cheap flights from London to Puerto Rico from £311

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 24/11. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SJU
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Puerto Rico

Keep the following information in mind while searching for London to Puerto Rico flight deals. Data was last updated 7 November 2025.

Round-trip from

£531

One-way from

£311

Popular in

July

Cheapest in

September

Average price

£595
JetBlue
  • JetBlue
  • 3/12-8/12
  • 2 total stops
  • 31h 13m total
  • London to Puerto Rico
Search Deals
24/11
  • 24/11
  • 1 total stop
  • 16h 54m total
  • London to Puerto Rico
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£71 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from London to Puerto Rico

Enter your travel dates to find the best prices.

Cheapest flights from London to Puerto Rico
Explore the most affordable flight options available from London to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 November 2025.

Wed 3/1207:25LHR - SJU
1 stop15h 28mJetBlue
Mon 8/1213:45SJU - LHR
1 stop15h 45mJetBlue
Deal found 6/11£531
Thu 20/1114:00LGW - SJU
1 stop16h 54mMultiple Airlines
Tue 25/1106:10SJU - LGW
2 stops19h 50mMultiple Airlines
Deal found 6/11£533
Tue 2/1207:25LHR - SJU
1 stop18h 29mJetBlue
Mon 8/1210:00SJU - LHR
1 stop19h 30mJetBlue
Deal found 6/11£538
Thu 4/1209:20LHR - SJU
1 stop18h 34mJetBlue
Wed 10/1205:09SJU - LHR
1 stop12h 31mJetBlue
Deal found 6/11£547
Sat 6/1214:00LGW - SJU
1 stop14h 16mMultiple Airlines
Fri 12/1203:55SJU - LGW
1 stop26h 10mMultiple Airlines
Deal found 6/11£548
Wed 3/1207:25LHR - SJU
1 stop15h 28mJetBlue
Sat 13/1205:10SJU - LHR
1 stop12h 50mJetBlue
Deal found 5/11£550
Fri 5/1214:00LGW - SJU
2 stops26h 32mMultiple Airlines
Fri 12/1211:38SJU - LGW
1 stop18h 22mMultiple Airlines
Deal found 5/11£553
Tue 2/1207:25LHR - SJU
1 stop18h 29mJetBlue
Sat 13/1205:10SJU - LHR
1 stop12h 50mJetBlue
Deal found 5/11£554
Thu 20/1112:20LHR - SJU
1 stop15h 28mJetBlue
Mon 24/1101:59SJU - LHR
1 stop15h 41mJetBlue
Deal found 6/11£558
Fri 28/1108:05LHR - SJU
1 stop19h 43mJetBlue
Wed 10/1205:09SJU - LHR
1 stop12h 31mJetBlue
Deal found 6/11£558
Thu 4/1209:20LHR - SJU
1 stop18h 34mJetBlue
Thu 11/1213:41SJU - LHR
1 stop13h 14mJetBlue
Deal found 6/11£560
Fri 28/1108:05LHR - SJU
1 stop19h 43mJetBlue
Thu 11/1213:41SJU - LHR
1 stop13h 14mJetBlue
Deal found 6/11£567

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Puerto Rico 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 7 November 2025.
Use the filters below to find and compare flights from London to Puerto Rico that are best for you.

Fly from

London

Fly to

Puerto Rico

Route

Depart

Return

Price

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 16/1

14:00-15:02

2 stops29h 02m

San Juan Luis Munoz Marin Intl

Sat 24/1

06:00-10:05

1 stop24h 05m

£539

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 31/1

08:05-23:55

1 stop19h 50m

San Juan Luis Munoz Marin Intl

Mon 9/2

08:15-06:55

2 stops18h 40m

£554

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 8/1

14:00-09:55

1 stop23h 55m

San Juan Luis Munoz Marin Intl

Thu 22/1

11:05-10:00

1 stop18h 55m

£555

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 17/1

09:20-01:22

1 stop20h 02m

San Juan Luis Munoz Marin Intl

Sat 24/1

06:00-22:00

1 stop12h 00m

£569

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 3/12

07:25-18:53

1 stop15h 28m

San Juan Luis Munoz Marin Intl

Sun 7/12

10:00-09:30

1 stop19h 30m

£586

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 11/12

14:00-10:33

1 stop24h 33m

San Juan Luis Munoz Marin Intl

Sun 14/12

11:38-10:00

1 stop18h 22m

£606

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sun 11/1

14:10-09:47

1 stop23h 37m

San Juan Luis Munoz Marin Intl

Thu 15/1

17:50-20:40

2 stops22h 50m

£612

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 4/12

09:20-23:54

1 stop18h 34m

San Juan Luis Munoz Marin Intl

Sun 7/12

10:00-09:30

1 stop19h 30m

£622

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 11/12

09:20-03:48

2 stops22h 28m

San Juan Luis Munoz Marin Intl

Wed 17/12

13:41-06:55

1 stop13h 14m

£629

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 26/1

11:00-13:48

2 stops30h 48m

San Juan Luis Munoz Marin Intl

Thu 5/2

06:15-09:50

2 stops23h 35m

£634

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 60 results
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Best time to book a flight from London to Puerto Rico

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

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

Currently, July is the cheapest month in which you can book a flight from London to Puerto Rico (average of £434). Flying from London to Puerto Rico in December is currently the most expensive (average of £548). 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 LON to PR?

Find hourly flight availability from London to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7 November 2025.

It’s optimal to fly from London to Puerto Rico in the evening. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated 7 November 2025.
Check out reviews from past customers who have flown with Finnair, JetBlue, andIcelandair from London to Puerto Rico to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.6

Crew

8.1

Entertainment

6.9

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Finnair
7.6
Good
1,335 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.6

Crew

8.1

Entertainment

6.9

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
JetBlue
7.2
Good
2,907 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.6

Crew

8.1

Entertainment

6.9

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Icelandair
7.1
Good
572 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.6

Crew

8.1

Entertainment

6.9

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Iberia
7.0
Good
3,007 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.6

Crew

8.1

Entertainment

6.9

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
British Airways
6.7
Okay
7,500 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.6

Crew

8.1

Entertainment

6.9

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Related info for your journey

Find useful and relevant information for your journey from London to Puerto Rico. 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 London to Puerto Rico?

    There are many flights that can get you from London to Puerto Rico in 14h 45m. Fly via Icelandair, JetBlue, or British Airways to get the fastest option. The distance from London to Puerto Rico is about 4201 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    When deciding which route to take from London to Puerto Rico consider London Heathrow - San Juan Luis Munoz Marin Intl, London Gatwick - San Juan Luis Munoz Marin Intl or London City - San Juan Luis Munoz Marin Intl as they are the most popular.

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

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

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

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

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

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

    Currently, July is the cheapest month in which you can book a flight from London to Puerto Rico (average of £434). Flying from London to Puerto Rico in December is currently the most expensive (average of £548). 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

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 London to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Bridgetown flights
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Stansted to Bridgetown flights
London City to Castries flights
Luton to Punta Cana flights
Heathrow to George Town flights
Heathrow to Pointe-à-Pitre flights
Manchester to Montego Bay flights
Gatwick to Havana flights
Gatwick to Basseterre flights
Manchester to Punta Cana flights
London City to Luis Munoz Marin Intl flights
Stansted to Montego Bay flights
Gatwick to Road Town flights
Gatwick to Santo Domingo flights
Heathrow to Santo Domingo flights
Luton to Montego Bay flights
Heathrow to Providenciales flights

Top 6 airlines flying from London to Puerto Rico

Discover the top 6 airlines that operate flights from London to Puerto Rico. 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 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£341Average£1,152FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£454Average£617FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
FinnairCheapest£461Average£563FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IcelandairCheapest£485Average£658FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
IberiaCheapest£518Average£859FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£552Average£884FlexibilityNo 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 London to Puerto Rico?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Puerto Rico from London today with Cheapflights!

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

Millions of users choose and trust Cheapflights to book the best flight deals from London to Puerto Rico for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Puerto Rico, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on London to Puerto Rico flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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