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Cheap flights from London to Puerto Rico from £329

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SJU
11 Jun — 18 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap 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 12 May 2026.

Wed 2/912:20
LGW
-
SJU
1 stop14h 12m
JetBlue
Mon 7/916:55
SJU
-
LGW
1 stop11h 40m
JetBlue
Deal found 10/5£578
Sat 6/612:20
LGW
-
SJU
1 stop14h 52m
JetBlue
Mon 15/616:53
SJU
-
LGW
1 stop11h 42m
JetBlue
Deal found 10/5£587
Tue 2/612:20
LGW
-
SJU
1 stop14h 22m
JetBlue
Wed 10/613:27
SJU
-
LGW
1 stop15h 08m
JetBlue
Deal found 10/5£595
Fri 5/612:20
LGW
-
SJU
1 stop14h 22m
JetBlue
Sun 14/616:57
SJU
-
LGW
1 stop11h 38m
JetBlue
Deal found 10/5£599
Wed 3/612:20
LGW
-
SJU
1 stop14h 22m
JetBlue
Sun 7/605:01
SJU
-
LGW
1 stop23h 34m
JetBlue
Deal found 8/5£608
Thu 4/608:15
LHR
-
SJU
1 stop14h 15m
JetBlue
Sun 14/615:24
SJU
-
LHR
1 stop13h 06m
JetBlue
Deal found 10/5£608
Tue 2/612:20
LGW
-
SJU
1 stop32h 58m
JetBlue
Sun 7/605:01
SJU
-
LGW
1 stop23h 34m
JetBlue
Deal found 10/5£609
Mon 8/612:20
LGW
-
SJU
1 stop14h 22m
JetBlue
Sun 14/616:57
SJU
-
LGW
1 stop11h 38m
JetBlue
Deal found 10/5£610
Tue 2/612:20
LGW
-
SJU
1 stop14h 22m
JetBlue
Sat 6/607:30
SJU
-
LGW
1 stop21h 05m
JetBlue
Deal found 10/5£611
Sat 6/612:20
LGW
-
SJU
1 stop14h 52m
JetBlue
Tue 9/613:27
SJU
-
LGW
1 stop15h 08m
JetBlue
Deal found 10/5£613
Fri 5/612:20
LGW
-
SJU
1 stop14h 22m
JetBlue
Mon 15/616:53
SJU
-
LGW
1 stop11h 42m
JetBlue
Deal found 10/5£616
Tue 17/1112:20
LHR
-
SJU
1 stop30h 26m
JetBlue
Fri 4/1214:41
SJU
-
LHR
1 stop12h 14m
JetBlue
Deal found 9/5£619

Find 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 12 May 2026.

Round-trip from

£578

One-way from

£329

Popular in

December

Cheapest in

February

Average price

£577
JetBlue
  • JetBlue
  • 2/9-7/9
  • 2 total stops
  • 25h 52m total
  • London to Puerto Rico
Search Deals
1/6
  • 1/6
  • 2 total stops
  • 46h 49m total
  • London to Puerto Rico
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£39 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 May 2026
Search Deals

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 5/11

09:20-00:25

1 stop19h 05m

San Juan Luis Munoz Marin Intl

Wed 11/11

11:45-09:30

1 stop17h 45m

£661

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 5/6

08:40-21:42

1 stop18h 02m

San Juan Luis Munoz Marin Intl

Wed 10/6

20:06-20:45

1 stop19h 39m

£674

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sun 20/9

08:15-19:32

1 stop16h 17m

San Juan Luis Munoz Marin Intl

Mon 5/10

06:00-06:30

1 stop19h 30m

£681

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 3/6

12:20-21:42

1 stop14h 22m

San Juan Luis Munoz Marin Intl

Sun 7/6

15:25-09:35

1 stop13h 10m

£691

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 22/5

12:20-00:19

1 stop16h 59m

San Juan Luis Munoz Marin Intl

Sun 31/5

05:01-09:35

1 stop23h 34m

£694

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sat 30/5

12:20-21:42

1 stop14h 22m

San Juan Luis Munoz Marin Intl

Sat 6/6

15:25-09:35

1 stop13h 10m

£696
Fastest return journey

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sun 7/6

12:20-21:42

1 stop14h 22m

San Juan Luis Munoz Marin Intl

Sun 14/6

16:57-09:35

1 stop11h 38m

£711

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 24/6

08:15-19:54

1 stop16h 39m

San Juan Luis Munoz Marin Intl

Wed 1/7

08:30-06:30

1 stop17h 00m

£713

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sun 20/9

13:45-13:08

2 stops28h 23m

San Juan Luis Munoz Marin Intl

Mon 5/10

10:30-17:45

2 stops26h 15m

£758

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Tue 2/6

09:10-22:29

2 stops18h 19m

San Juan Luis Munoz Marin Intl

Mon 15/6

17:25-12:05

1 stop13h 40m

£772

Flights are sorted by cheapest return flights first.

Deals found on 7/5

Showing 1-10 of 60 resultsSorted by cheapest first
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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

How far ahead should I book a flight from London to Puerto Rico?

The price you pay for your flight from London to Puerto Rico may vary depending on when you book. For the best chance of a lower fare, look to book 42 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 £139). Flying from London to Puerto Rico in February is currently the most expensive (average of £937). 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.

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 12 May 2026.
Check out reviews from past customers who have flown with JetBlue,Icelandair, andIberia 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.
JetBlue
7.2
Good
2,974 reviews
Check prices

Crew

7.9

Entertainment

7.2

Overall

7.2

Food

6.6

Comfort

7.5

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

FLL - MDE

The plane crew (all of them) worked as a fantastic team always smiling and professional. So.eonerful and appreciating to.see. They were definitly your A team.
JetBlue
7.2
Good
2,974 reviews
JetBlue
7.2
Good
2,974 reviews
Check prices

Crew

7.9

Entertainment

7.2

Overall

7.2

Food

6.6

Comfort

7.5

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

FLL - MDE

The plane crew (all of them) worked as a fantastic team always smiling and professional. So.eonerful and appreciating to.see. They were definitly your A team.
Icelandair
7.0
Good
654 reviews
JetBlue
7.2
Good
2,974 reviews
Check prices

Crew

7.9

Entertainment

7.2

Overall

7.2

Food

6.6

Comfort

7.5

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

FLL - MDE

The plane crew (all of them) worked as a fantastic team always smiling and professional. So.eonerful and appreciating to.see. They were definitly your A team.
Iberia
7.0
Good
3,215 reviews
JetBlue
7.2
Good
2,974 reviews
Check prices

Crew

7.9

Entertainment

7.2

Overall

7.2

Food

6.6

Comfort

7.5

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

FLL - MDE

The plane crew (all of them) worked as a fantastic team always smiling and professional. So.eonerful and appreciating to.see. They were definitly your A team.
British Airways
6.7
Okay
7,974 reviews
JetBlue
7.2
Good
2,974 reviews
Check prices

Crew

7.9

Entertainment

7.2

Overall

7.2

Food

6.6

Comfort

7.5

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

FLL - MDE

The plane crew (all of them) worked as a fantastic team always smiling and professional. So.eonerful and appreciating to.see. They were definitly your A team.
Avianca
6.5
Okay
2,523 reviews
JetBlue
7.2
Good
2,974 reviews
Check prices

Crew

7.9

Entertainment

7.2

Overall

7.2

Food

6.6

Comfort

7.5

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Feb 2026

FLL - MDE

The plane crew (all of them) worked as a fantastic team always smiling and professional. So.eonerful and appreciating to.see. They were definitly your A team.

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 15m. Fly via JetBlue, British Airways, or Iberia 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 Stansted - 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 £139). Flying from London to Puerto Rico in February is currently the most expensive (average of £937). 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 Montego Bay flights
Heathrow to Bridgetown flights
Heathrow to Kingston flights
Gatwick to Bridgetown flights
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Gatwick to Punta Cana flights
London City to Montego Bay flights
Gatwick to Kingston flights
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Heathrow to Nassau flights
Luton to Punta Cana flights
Manchester to Bridgetown flights
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London City to Punta Cana flights
Heathrow to Castries flights
Heathrow to Roseau flights
Heathrow to St. George's flights
Heathrow to Santo Domingo flights
Heathrow to Port of Spain flights
Gatwick to Castries flights
Heathrow to Luis Munoz Marin Intl flights
Heathrow to Kingstown flights
Gatwick to Santo Domingo flights
Heathrow to St. John's flights
Stansted to Port of Spain flights
Stansted to Santo Domingo flights
Gatwick to St. John's flights
Gatwick to Nassau flights
London City to Santo Domingo flights
Gatwick to Havana flights
Gatwick to Port of Spain flights
Manchester to Punta Cana flights
Stansted to Nassau flights
Gatwick to Luis Munoz Marin Intl flights
Heathrow to Oranjestad flights
Heathrow to Willemstad flights
Heathrow to Castries flights
Manchester to Montego Bay flights
Gatwick to Willemstad flights
Gatwick to Oranjestad flights
Stansted to Luis Munoz Marin Intl flights
Gatwick to Roseau flights
Gatwick to St. George's flights

Top 7 airlines flying from London to Puerto Rico

Discover the top 7 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 12 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£328Average£1,108FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£428Average£607FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
FinnairCheapest£482Average£793FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IcelandairCheapest£486Average£657FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
AviancaCheapest£530Average£587FlexibilityNo cancel feeOn-time71%
Search Avianca flights
British AirwaysCheapest£531Average£987FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£585Average£946FlexibilityNo cancel feeOn-time77%
Search Iberia 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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