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Cheap flights from London to Puerto Rico from £288

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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SJU
19 Dec — 26 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 19 November 2025.

Round-trip from

£543

One-way from

£288

Popular in

December

Cheapest in

September

Average price

£595
Avianca
  • Avianca
  • 28/1-5/2
  • 2 total stops
  • 39h 30m total
  • London to Puerto Rico
Search Deals
11/1
  • 11/1
  • 1 total stop
  • 23h 37m total
  • London to Puerto Rico
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£22 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£20 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 19 November 2025.

Thu 27/1114:00LGW - SJU
1 stop16h 54mMultiple Airlines
Thu 4/1209:15SJU - LGW
2 stops21h 40mMultiple Airlines
Deal found 18/11£588
Wed 17/1207:25LHR - SJU
1 stop24h 23mIcelandair
Wed 25/218:22SJU - LHR
1 stop23h 18mIcelandair
Deal found 18/11£592
Fri 28/1114:00LGW - SJU
1 stop16h 54mMultiple Airlines
Fri 12/1204:10SJU - LGW
2 stops25h 55mMultiple Airlines
Deal found 18/11£600
Fri 28/1114:00LGW - SJU
1 stop16h 54mMultiple Airlines
Thu 11/1203:55SJU - LGW
1 stop26h 05mMultiple Airlines
Deal found 18/11£606
Mon 29/1212:30LHR - SJU
2 stops24h 09mMultiple Airlines
Mon 12/111:52SJU - LHR
1 stop19h 18mMultiple Airlines
Deal found 17/11£641
Thu 4/1210:40LGW - SJU
2 stops21h 40mTAP AIR PORTUGAL
Mon 8/1206:10SJU - LGW
2 stops23h 40mTAP AIR PORTUGAL
Deal found 18/11£658
Thu 4/1217:30LHR - SJU
3 stops35h 15mMultiple Airlines
Sun 7/1204:10SJU - LHR
3 stops32h 50mMultiple Airlines
Deal found 18/11£666
Thu 11/1209:20LHR - SJU
1 stop31h 24mIcelandair
Sat 27/1201:59SJU - LHR
1 stop27h 31mIcelandair
Deal found 18/11£674
Thu 27/1109:20LHR - SJU
2 stops39h 28mIcelandair
Thu 4/1219:10SJU - LHR
1 stop31h 45mIcelandair
Deal found 18/11£693
Tue 18/1109:20LHR - SJU
1 stop31h 24mIcelandair
Tue 25/1106:07SJU - LHR
1 stop20h 48mIcelandair
Deal found 17/11£703
Tue 18/1116:25LGW - SJU
2 stops39h 08mMultiple Airlines
Tue 25/1107:11SJU - LGW
1 stop18h 49mMultiple Airlines
Deal found 17/11£704
Thu 4/1217:40LCY - SJU
2 stops30h 10mMultiple Airlines
Mon 8/1213:22SJU - LCY
2 stops19h 33mMultiple Airlines
Deal found 18/11£704

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 19 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 9/1

14:00-09:47

1 stop23h 47m

San Juan Luis Munoz Marin Intl

Sun 18/1

21:04-10:00

1 stop32h 56m

£559

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 12/1

11:55-15:35

3 stops31h 40m

San Juan Luis Munoz Marin Intl

Fri 16/1

10:52-10:55

2 stops20h 03m

£569

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 2/2

08:35-11:35

2 stops31h 00m

San Juan Luis Munoz Marin Intl

Sat 7/2

10:52-17:50

2 stops26h 58m

£598

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 28/1

09:20-02:33

2 stops21h 13m

San Juan Luis Munoz Marin Intl

Wed 4/2

08:15-06:55

2 stops18h 40m

£618

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 28/1

10:00-11:35

2 stops29h 35m

San Juan Luis Munoz Marin Intl

Wed 4/2

19:50-10:00

2 stops34h 10m

£633

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

£637

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 28/1

16:35-01:22

2 stops36h 47m

San Juan Luis Munoz Marin Intl

Wed 4/2

11:15-15:05

2 stops23h 50m

£644

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Sun 8/3

07:40-15:20

2 stops35h 40m

San Juan Luis Munoz Marin Intl

Thu 12/3

13:00-00:05

2 stops31h 05m

£652

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sat 31/1

17:25-17:05

2 stops27h 40m

San Juan Luis Munoz Marin Intl

Sun 1/2

19:50-10:00

2 stops34h 10m

£655

LondonSan Juan

LCY - SJU

LCYSJU

London City

Mon 12/1

13:30-15:35

3 stops30h 05m

San Juan Luis Munoz Marin Intl

Thu 15/1

10:52-12:55

2 stops22h 03m

£658

Flights are sorted by cheapest return flights first.

Deals found on 17/11

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 £432). Flying from London to Puerto Rico in December is currently the most expensive (average of £541). 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 19 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 19 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
1,334 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.6

Crew

8.1

Comfort

7.4

Overall

7.6

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
1,334 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.6

Crew

8.1

Comfort

7.4

Overall

7.6

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
2,902 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.6

Crew

8.1

Comfort

7.4

Overall

7.6

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
7.0
Good
580 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.6

Crew

8.1

Comfort

7.4

Overall

7.6

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
3,026 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.6

Crew

8.1

Comfort

7.4

Overall

7.6

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
7,532 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.6

Crew

8.1

Comfort

7.4

Overall

7.6

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 15h 36m. Fly via Icelandair, TAP AIR PORTUGAL, or JetBlue to get the fastest option. The distance from London to Puerto Rico is about 4179 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 £432). Flying from London to Puerto Rico in December is currently the most expensive (average of £541). 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
Heathrow to Montego Bay flights
Heathrow to Kingston flights
Heathrow to Punta Cana flights
Gatwick to Punta Cana flights
London City to Bridgetown flights
Gatwick to Bridgetown flights
Gatwick to Kingston flights
Manchester to Bridgetown flights
Heathrow to St. George's flights
London City to Montego Bay flights
London City to Kingston flights
Heathrow to Port of Spain flights
Heathrow to Nassau flights
Heathrow to Castries flights
Gatwick to Montego Bay flights
London City to Punta Cana flights
Gatwick to St. John's flights
Stansted to Punta Cana flights
Gatwick to Castries flights
Heathrow to Luis Munoz Marin Intl flights
Gatwick to Port of Spain flights
Heathrow to St. John's flights
Luton to Punta Cana flights
Heathrow to Kingstown flights
Stansted to Bridgetown flights
Gatwick to St. George's flights
Gatwick to Luis Munoz Marin Intl flights
Heathrow to Castries flights
Heathrow to Road Town flights
Heathrow to George Town flights
Heathrow to Basseterre flights
Heathrow to Roseau flights
Heathrow to Santo Domingo flights
Stansted to Montego Bay flights
London City to Castries flights
Gatwick to Havana flights
Heathrow to Simpson Bay flights
Luton to Montego Bay flights
London City to St. John's flights
Manchester to Montego Bay flights
Birmingham to Montego Bay flights
Manchester to Punta Cana flights
Gatwick to Santo Domingo flights
Gatwick to Road Town flights
Stansted to Kingston flights
Gatwick to Basseterre flights
Edinburgh to Bridgetown flights
Gatwick to Nassau flights
London City to Santo Domingo 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 19 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£339Average£1,146FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£452Average£614FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
FinnairCheapest£458Average£560FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IcelandairCheapest£483Average£655FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
IberiaCheapest£516Average£855FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£550Average£880FlexibilityNo 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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