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Cheap flights from London to Puerto Rico from £335

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 23/8. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SJU
27 Jun — 4 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 28 May 2026.

Fri 9/1011:55
LHR
-
SJU
1 stop16h 54m
JetBlue
Sat 17/1013:00
SJU
-
LHR
1 stop15h 30m
JetBlue
Deal found 24/5£556
Fri 4/1208:05
LHR
-
SJU
1 stop23h 43m
JetBlue
Fri 11/1220:10
SJU
-
LHR
1 stop30h 45m
JetBlue
Deal found 24/5£586
Sat 7/1107:25
LHR
-
SJU
1 stop32h 58m
JetBlue
Sat 14/1107:00
SJU
-
LHR
1 stop19h 55m
JetBlue
Deal found 28/5£587
Tue 17/1107:25
LHR
-
SJU
1 stop17h 20m
JetBlue
Thu 26/1105:30
SJU
-
LHR
1 stop12h 10m
JetBlue
Deal found 27/5£608
Wed 11/1109:20
LHR
-
SJU
1 stop19h 05m
JetBlue
Tue 24/1113:20
SJU
-
LHR
1 stop16h 10m
JetBlue
Deal found 25/5£612
Wed 16/908:15
LHR
-
SJU
1 stop19h 27m
Multiple Airlines
Mon 28/916:10
SJU
-
LHR
1 stop15h 25m
Multiple Airlines
Deal found 26/5£613
Mon 16/1112:20
LHR
-
SJU
1 stop17h 23m
JetBlue
Tue 1/1214:41
SJU
-
LHR
1 stop12h 14m
JetBlue
Deal found 27/5£629
Fri 4/914:00
LGW
-
SJU
1 stop16h 54m
Multiple Airlines
Sat 12/903:00
SJU
-
LGW
1 stop26h 00m
Multiple Airlines
Deal found 28/5£633
Mon 14/908:15
LHR
-
SJU
1 stop19h 27m
JetBlue
Sun 20/919:00
SJU
-
LHR
1 stop20h 45m
JetBlue
Deal found 23/5£635
Tue 17/1107:25
LHR
-
SJU
1 stop17h 20m
JetBlue
Fri 27/1115:25
SJU
-
LHR
1 stop14h 05m
JetBlue
Deal found 27/5£638
Wed 10/612:20
LGW
-
SJU
1 stop14h 22m
JetBlue
Sat 13/614:40
SJU
-
LGW
1 stop13h 55m
JetBlue
Deal found 27/5£644
Mon 14/908:15
LHR
-
SJU
1 stop19h 27m
JetBlue
Mon 21/906:00
SJU
-
LHR
1 stop19h 30m
JetBlue
Deal found 23/5£645

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 28 May 2026.

Round-trip from

£556

One-way from

£335

Popular in

December

Cheapest in

February

Average price

£584
JetBlue
  • JetBlue
  • 9/10-17/10
  • 2 total stops
  • 32h 24m total
  • London to Puerto Rico
Search Deals
23/8
  • 23/8
  • 3 total stops
  • 47h 23m total
  • London to Puerto Rico
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£38 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 28 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

Wed 11/11

12:20-01:43

1 stop17h 23m

San Juan Luis Munoz Marin Intl

Tue 24/11

15:25-09:30

1 stop14h 05m

£612

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sat 29/8

12:20-01:55

1 stop18h 35m

San Juan Luis Munoz Marin Intl

Sat 5/9

15:25-09:35

1 stop13h 10m

£711
Fastest return journey

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 27/8

14:00-23:29

1 stop14h 29m

San Juan Luis Munoz Marin Intl

Thu 10/9

17:15-10:50

1 stop12h 35m

£734

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Thu 20/8

21:25-18:36

2 stops50h 11m

Aguadilla Borinquen

Sun 23/8

00:15-06:35

2 stops25h 20m

£758

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 27/8

10:35-08:47

2 stops27h 12m

San Juan Luis Munoz Marin Intl

Thu 10/9

10:30-09:45

2 stops42h 15m

£773

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 9/10

12:05-13:08

2 stops30h 03m

San Juan Luis Munoz Marin Intl

Mon 19/10

06:12-15:35

2 stops28h 23m

£798

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Thu 25/6

08:15-22:08

1 stop18h 53m

Aguadilla Borinquen

Thu 2/7

04:45-09:30

1 stop23h 45m

£803

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 9/10

06:00-23:58

2 stops22h 58m

San Juan Luis Munoz Marin Intl

Mon 19/10

06:12-10:20

2 stops23h 08m

£804

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Thu 15/10

21:55-18:50

2 stops25h 55m

San Juan Luis Munoz Marin Intl

Sun 25/10

18:10-12:30

1 stop14h 20m

£813

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 11/9

15:40-13:34

2 stops26h 54m

San Juan Luis Munoz Marin Intl

Fri 18/9

06:00-14:40

2 stops27h 40m

£818

Flights are sorted by cheapest return flights first.

Deals found on 27/5

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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 £218). Flying from London to Puerto Rico in July is currently the most expensive (average of £490). 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 28 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
7.1
Good
2,982 reviews
Check prices

Boarding

7.3

Crew

7.9

Entertainment

7.2

Food

6.6

Overall

7.1

Comfort

7.5

Reviews

1 / 20
4.0
Okay

Jeff,Dec 2025

LAX - BOS

We boarded an hour and a half late and the crew was very salty when asked why. Still got no reason other than someone took the intended plane? Won't fly with them again.
JetBlue
7.1
Good
2,982 reviews
JetBlue
7.1
Good
2,982 reviews
Check prices

Boarding

7.3

Crew

7.9

Entertainment

7.2

Food

6.6

Overall

7.1

Comfort

7.5

Reviews

1 / 20
4.0
Okay

Jeff,Dec 2025

LAX - BOS

We boarded an hour and a half late and the crew was very salty when asked why. Still got no reason other than someone took the intended plane? Won't fly with them again.
Icelandair
7.0
Good
662 reviews
JetBlue
7.1
Good
2,982 reviews
Check prices

Boarding

7.3

Crew

7.9

Entertainment

7.2

Food

6.6

Overall

7.1

Comfort

7.5

Reviews

1 / 20
4.0
Okay

Jeff,Dec 2025

LAX - BOS

We boarded an hour and a half late and the crew was very salty when asked why. Still got no reason other than someone took the intended plane? Won't fly with them again.
Iberia
7.0
Good
3,222 reviews
JetBlue
7.1
Good
2,982 reviews
Check prices

Boarding

7.3

Crew

7.9

Entertainment

7.2

Food

6.6

Overall

7.1

Comfort

7.5

Reviews

1 / 20
4.0
Okay

Jeff,Dec 2025

LAX - BOS

We boarded an hour and a half late and the crew was very salty when asked why. Still got no reason other than someone took the intended plane? Won't fly with them again.
British Airways
6.7
Okay
8,007 reviews
JetBlue
7.1
Good
2,982 reviews
Check prices

Boarding

7.3

Crew

7.9

Entertainment

7.2

Food

6.6

Overall

7.1

Comfort

7.5

Reviews

1 / 20
4.0
Okay

Jeff,Dec 2025

LAX - BOS

We boarded an hour and a half late and the crew was very salty when asked why. Still got no reason other than someone took the intended plane? Won't fly with them again.
Avianca
6.5
Okay
2,528 reviews
JetBlue
7.1
Good
2,982 reviews
Check prices

Boarding

7.3

Crew

7.9

Entertainment

7.2

Food

6.6

Overall

7.1

Comfort

7.5

Reviews

1 / 20
4.0
Okay

Jeff,Dec 2025

LAX - BOS

We boarded an hour and a half late and the crew was very salty when asked why. Still got no reason other than someone took the intended plane? Won't fly with them again.

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 17h 23m. Fly via JetBlue, TAP AIR PORTUGAL, or United 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 City - San Juan Luis Munoz Marin Intl or London Gatwick - 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 £218). Flying from London to Puerto Rico in July is currently the most expensive (average of £490). 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 Kingston flights
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Gatwick to Kingston flights
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London City to Punta Cana flights
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Heathrow to Port of Spain flights
Heathrow to Kingstown flights
Heathrow to St. John's flights
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Heathrow to Roseau flights
Stansted to Santo Domingo flights
London City to Santo Domingo flights
Gatwick to St. John's flights
Gatwick to Havana flights
Heathrow to Castries flights
Stansted to Port of Spain flights
Gatwick to St. George's flights
Heathrow to George Town flights
Heathrow to Luis Munoz Marin Intl flights
Stansted to Nassau flights
Gatwick to Willemstad flights
Heathrow to Willemstad flights
Manchester to Montego Bay flights
Gatwick to Castries flights
London City to Luis Munoz Marin Intl flights
Gatwick to Luis Munoz Marin Intl flights
Gatwick to Port of Spain flights
Heathrow to Havana 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 28 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£332Average£1,122FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£436Average£674FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IcelandairCheapest£484Average£669FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
AviancaCheapest£536Average£594FlexibilityNo cancel feeOn-time71%
Search Avianca flights
IberiaCheapest£611Average£995FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£835Average£1,002FlexibilityNo 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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