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Cheap flights from London to Puerto Rico from £341

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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SJU
19 Jul — 26 Jul1
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 19 June 2026.

Thu 29/1006:20
STN
-
SJU
1 stop17h 40m
Multiple Airlines
Sun 8/1107:00
SJU
-
STN
2 stops22h 15m
Multiple Airlines
Deal found 17/6£435
Thu 29/1006:20
STN
-
SJU
1 stop17h 40m
Multiple Airlines
Mon 9/1121:35
SJU
-
STN
1 stop17h 50m
Multiple Airlines
Deal found 17/6£438
Thu 29/1006:20
STN
-
SJU
1 stop17h 40m
Multiple Airlines
Tue 10/1114:00
SJU
-
STN
2 stops17h 45m
Multiple Airlines
Deal found 17/6£440
Thu 29/1007:50
LGW
-
SJU
1 stop16h 10m
Multiple Airlines
Mon 9/1121:35
SJU
-
LGW
1 stop17h 25m
Multiple Airlines
Deal found 17/6£473
Mon 2/1106:55
STN
-
SJU
1 stop13h 45m
Multiple Airlines
Mon 9/1121:35
SJU
-
STN
1 stop17h 50m
Multiple Airlines
Deal found 17/6£475
Sat 31/1008:50
STN
-
SJU
1 stop15h 10m
Multiple Airlines
Sat 7/1121:35
SJU
-
STN
1 stop12h 05m
Multiple Airlines
Deal found 17/6£484
Wed 4/1108:30
STN
-
SJU
1 stop15h 30m
Multiple Airlines
Sun 15/1121:35
SJU
-
STN
1 stop13h 15m
Multiple Airlines
Deal found 16/6£489
Thu 29/1006:20
STN
-
SJU
1 stop14h 20m
Multiple Airlines
Sat 7/1107:00
SJU
-
STN
2 stops21h 50m
Multiple Airlines
Deal found 17/6£497
Thu 29/1006:20
STN
-
SJU
1 stop14h 20m
Multiple Airlines
Thu 5/1114:00
SJU
-
STN
2 stops17h 55m
Multiple Airlines
Deal found 17/6£508
Wed 4/1110:10
LGW
-
SJU
1 stop20h 40m
Multiple Airlines
Sun 15/1121:35
SJU
-
LGW
1 stop31h 25m
Multiple Airlines
Deal found 16/6£509
Mon 2/1106:55
STN
-
SJU
1 stop13h 45m
Multiple Airlines
Sun 8/1121:35
SJU
-
STN
1 stop17h 20m
Multiple Airlines
Deal found 17/6£517
Mon 2/1107:25
LGW
-
SJU
1 stop16h 35m
Multiple Airlines
Sun 8/1121:35
SJU
-
LGW
1 stop14h 50m
Multiple Airlines
Deal found 17/6£522

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 19 June 2026.

Round-trip from

£435

One-way from

£341

Popular in

December

Cheapest in

February

Average price

£708
29/10-8/11
  • 29/10-8/11
  • 3 total stops
  • 39h 55m total
  • London to Puerto Rico
Search Deals
11/11
  • 11/11
  • 1 total stop
  • 36h 27m total
  • London to Puerto Rico
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£30 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 19 June 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

STN - SJU

STNSJU

London Stansted

Wed 4/11

08:30-20:00

1 stop15h 30m

San Juan Luis Munoz Marin Intl

Tue 10/11

14:00-11:45

2 stops17h 45m

£552

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 11/11

09:20-00:25

1 stop19h 05m

San Juan Luis Munoz Marin Intl

Tue 24/11

05:30-21:40

1 stop12h 10m

£598

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 11/9

08:15-19:32

1 stop16h 17m

San Juan Luis Munoz Marin Intl

Tue 15/9

13:00-09:30

1 stop15h 30m

£642

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 9/10

08:40-23:58

1 stop20h 18m

San Juan Luis Munoz Marin Intl

Mon 19/10

15:00-09:30

1 stop13h 30m

£667

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Sun 13/12

17:35-16:40

1 stop27h 05m

San Juan Luis Munoz Marin Intl

Sun 17/1

21:30-14:50

1 stop13h 20m

£678
Fastest return journey

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 25/11

09:20-19:29

1 stop14h 09m

San Juan Luis Munoz Marin Intl

Fri 4/12

14:41-06:55

1 stop12h 14m

£689

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 6/7

12:20-23:59

1 stop16h 39m

San Juan Luis Munoz Marin Intl

Mon 20/7

16:55-09:35

1 stop11h 40m

£718

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 13/7

08:15-00:13

1 stop20h 58m

San Juan Luis Munoz Marin Intl

Mon 27/7

15:24-09:30

1 stop13h 06m

£722

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 16/11

19:20-16:40

2 stops25h 20m

San Juan Luis Munoz Marin Intl

Sat 28/11

21:35-08:20

2 stops30h 45m

£723

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 16/10

21:15-13:08

2 stops44h 53m

San Juan Luis Munoz Marin Intl

Sat 24/10

06:12-21:40

3 stops34h 28m

£741

Flights are sorted by cheapest return flights first.

Deals found on 14/6

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

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

Currently, May is the cheapest month in which you can book a flight from London to Puerto Rico (average of £221). Flying from London to Puerto Rico in June is currently the most expensive (average of £557). 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 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.

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 June 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
7.1
Good
2,987 reviews
Check prices

Crew

7.9

Food

6.6

Overall

7.1

Boarding

7.3

Comfort

7.5

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Dave,Jun 2026

MCO - ROC

When i book 2 tickets they should keep them together even though I can't choose a seat
JetBlue
7.1
Good
2,987 reviews
JetBlue
7.1
Good
2,987 reviews
Check prices

Crew

7.9

Food

6.6

Overall

7.1

Boarding

7.3

Comfort

7.5

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Dave,Jun 2026

MCO - ROC

When i book 2 tickets they should keep them together even though I can't choose a seat
Icelandair
7.0
Good
679 reviews
JetBlue
7.1
Good
2,987 reviews
Check prices

Crew

7.9

Food

6.6

Overall

7.1

Boarding

7.3

Comfort

7.5

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Dave,Jun 2026

MCO - ROC

When i book 2 tickets they should keep them together even though I can't choose a seat
Iberia
7.0
Good
3,238 reviews
JetBlue
7.1
Good
2,987 reviews
Check prices

Crew

7.9

Food

6.6

Overall

7.1

Boarding

7.3

Comfort

7.5

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Dave,Jun 2026

MCO - ROC

When i book 2 tickets they should keep them together even though I can't choose a seat
British Airways
6.7
Okay
8,055 reviews
JetBlue
7.1
Good
2,987 reviews
Check prices

Crew

7.9

Food

6.6

Overall

7.1

Boarding

7.3

Comfort

7.5

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Dave,Jun 2026

MCO - ROC

When i book 2 tickets they should keep them together even though I can't choose a seat
Avianca
6.5
Okay
2,530 reviews
JetBlue
7.1
Good
2,987 reviews
Check prices

Crew

7.9

Food

6.6

Overall

7.1

Boarding

7.3

Comfort

7.5

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Dave,Jun 2026

MCO - ROC

When i book 2 tickets they should keep them together even though I can't choose a seat

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 19h 05m. Fly via JetBlue, TAP AIR PORTUGAL, or Turkish Airlines 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 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, May is the cheapest month in which you can book a flight from London to Puerto Rico (average of £221). Flying from London to Puerto Rico in June is currently the most expensive (average of £557). 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
Gatwick to Bridgetown flights
Heathrow to Kingston flights
Gatwick to Punta Cana flights
Heathrow to Punta Cana flights
Gatwick to Kingston flights
Stansted to Bridgetown flights
Stansted to Punta Cana flights
Stansted to Kingston flights
Manchester to Bridgetown flights
Luton to Punta Cana flights
London City to Kingston flights
London City to Bridgetown flights
Luton to Montego Bay flights
Stansted to Montego Bay flights
London City to Montego Bay flights
Heathrow to Castries flights
Gatwick to Montego Bay flights
London City to Punta Cana flights
Heathrow to Willemstad flights
Heathrow to St. John's flights
Heathrow to Nassau flights
Heathrow to Port of Spain flights
Heathrow to St. George's flights
Manchester to Montego Bay flights
Gatwick to Willemstad flights
Heathrow to Santo Domingo flights
Gatwick to Santo Domingo flights
Gatwick to St. John's flights
Gatwick to Castries flights
Heathrow to Luis Munoz Marin Intl flights
Stansted to Santo Domingo flights
Birmingham to Montego Bay flights
London City to Santo Domingo flights
Gatwick to Havana flights
Stansted to Port of Spain flights
Heathrow to Castries flights
London City to Castries flights
Gatwick to St. George's flights
Heathrow to Roseau flights
Heathrow to Kingstown flights
Manchester to Punta Cana flights
Gatwick to Luis Munoz Marin Intl flights
Gatwick to Nassau flights
Gatwick to Port of Spain flights
London City to St. John's flights
Heathrow to Simpson Bay 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 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£337Average£1,138FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£441Average£693FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IcelandairCheapest£509Average£698FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
AviancaCheapest£544Average£602FlexibilityNo cancel feeOn-time71%
Search Avianca flights
IberiaCheapest£783Average£1,082FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£847Average£1,022FlexibilityNo 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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