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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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SJU
26 Jul — 2 Aug1
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 26 June 2026.

Tue 30/620:05
LHR
-
SJU
1 stop20h 55m
Virgin Atlantic
Thu 30/713:10
SJU
-
LHR
1 stop18h 00m
Virgin Atlantic
Deal found 23/6£350
Fri 28/812:20
LGW
-
SJU
1 stop16h 34m
JetBlue
Thu 3/913:50
SJU
-
LGW
1 stop14h 45m
JetBlue
Deal found 25/6£489
Mon 7/918:35
LHR
-
SJU
1 stop22h 28m
Virgin Atlantic
Tue 22/913:21
SJU
-
LHR
1 stop14h 29m
Virgin Atlantic
Deal found 23/6£516
Fri 28/811:55
LHR
-
SJU
1 stop15h 50m
JetBlue
Thu 3/915:24
SJU
-
LHR
1 stop13h 06m
JetBlue
Deal found 25/6£547
Tue 10/1112:20
LHR
-
SJU
1 stop32h 31m
JetBlue
Tue 17/1111:45
SJU
-
LHR
1 stop29h 00m
JetBlue
Deal found 22/6£559
Sat 19/914:00
LGW
-
SJU
1 stop22h 58m
Multiple Airlines
Wed 30/906:15
SJU
-
LGW
2 stops22h 45m
Multiple Airlines
Deal found 22/6£572
Tue 15/908:40
LHR
-
SJU
1 stop34h 43m
JetBlue
Wed 23/913:00
SJU
-
LHR
1 stop26h 45m
JetBlue
Deal found 22/6£579
Sat 7/1109:20
LHR
-
SJU
1 stop33h 53m
JetBlue
Sun 15/1115:50
SJU
-
LHR
1 stop13h 40m
JetBlue
Deal found 23/6£585
Sat 14/1109:20
LHR
-
SJU
1 stop19h 05m
JetBlue
Tue 17/1120:00
SJU
-
LHR
1 stop20h 45m
JetBlue
Deal found 24/6£587
Wed 11/1109:20
LHR
-
SJU
1 stop19h 05m
JetBlue
Tue 24/1105:30
SJU
-
LHR
1 stop12h 10m
JetBlue
Deal found 26/6£591
Mon 7/912:20
LGW
-
SJU
1 stop16h 34m
Multiple Airlines
Tue 22/917:15
SJU
-
LGW
1 stop12h 35m
Multiple Airlines
Deal found 23/6£594
Sat 11/708:15
LHR
-
SJU
1 stop17h 03m
JetBlue
Mon 27/713:10
SJU
-
LHR
1 stop15h 20m
JetBlue
Deal found 24/6£604

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 26 June 2026.

Round-trip from

£489

One-way from

£335

Popular in

December

Cheapest in

February

Average price

£712
JetBlue
  • JetBlue
  • 28/8-3/9
  • 2 total stops
  • 31h 19m total
  • London to Puerto Rico
Search Deals
4/9
  • 4/9
  • 1 total stop
  • 17h 15m total
  • London to Puerto Rico
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£31 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 26 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

LHR - SJU

LHRSJU

London Heathrow

Tue 1/12

09:20-23:55

1 stop18h 35m

San Juan Luis Munoz Marin Intl

Sat 12/12

07:10-06:55

1 stop19h 45m

£634

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 18/9

08:40-23:58

1 stop20h 18m

San Juan Luis Munoz Marin Intl

Tue 22/9

13:00-09:30

1 stop15h 30m

£635

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 21/8

12:20-23:54

1 stop16h 34m

San Juan Luis Munoz Marin Intl

Sun 23/8

14:30-09:35

1 stop14h 05m

£643

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 15/9

18:45-13:08

2 stops47h 23m

San Juan Luis Munoz Marin Intl

Wed 23/9

10:30-22:00

2 stops30h 30m

£710

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 5/9

06:00-10:00

2 stops33h 00m

San Juan Luis Munoz Marin Intl

Tue 15/9

10:30-18:50

2 stops27h 20m

£717

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Tue 15/9

10:35-13:08

2 stops31h 33m

San Juan Luis Munoz Marin Intl

Wed 23/9

10:30-20:30

3 stops29h 00m

£720

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Tue 1/12

21:20-03:48

3 stops34h 28m

San Juan Luis Munoz Marin Intl

Sat 12/12

07:10-09:50

2 stops22h 40m

£727

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 30/11

11:00-10:49

2 stops27h 49m

San Juan Luis Munoz Marin Intl

Thu 17/12

13:40-20:35

2 stops26h 55m

£737

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 4/9

10:35-08:47

2 stops27h 12m

San Juan Luis Munoz Marin Intl

Tue 8/9

06:00-09:45

2 stops22h 45m

£746

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 18/9

06:00-23:58

2 stops22h 58m

San Juan Luis Munoz Marin Intl

Tue 22/9

10:30-17:45

2 stops26h 15m

£747

Flights are sorted by cheapest return flights first.

Deals found on 25/6

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 £222). Flying from London to Puerto Rico in June is currently the most expensive (average of £560). 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 26 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
3,014 reviews
Check prices

Food

6.6

Comfort

7.5

Overall

7.1

Entertainment

7.2

Crew

7.9

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2024

BDL - SJU

My experience was very positive: I liked the big space among seats, the huge entertainment options, and the crew professionalism. My only complaint is the lacked of use of Spanish. As a Spanish speaker, I didn’t like this.
JetBlue
7.1
Good
3,014 reviews
JetBlue
7.1
Good
3,014 reviews
Check prices

Food

6.6

Comfort

7.5

Overall

7.1

Entertainment

7.2

Crew

7.9

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2024

BDL - SJU

My experience was very positive: I liked the big space among seats, the huge entertainment options, and the crew professionalism. My only complaint is the lacked of use of Spanish. As a Spanish speaker, I didn’t like this.
Icelandair
7.0
Good
690 reviews
JetBlue
7.1
Good
3,014 reviews
Check prices

Food

6.6

Comfort

7.5

Overall

7.1

Entertainment

7.2

Crew

7.9

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2024

BDL - SJU

My experience was very positive: I liked the big space among seats, the huge entertainment options, and the crew professionalism. My only complaint is the lacked of use of Spanish. As a Spanish speaker, I didn’t like this.
Iberia
7.0
Good
3,250 reviews
JetBlue
7.1
Good
3,014 reviews
Check prices

Food

6.6

Comfort

7.5

Overall

7.1

Entertainment

7.2

Crew

7.9

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2024

BDL - SJU

My experience was very positive: I liked the big space among seats, the huge entertainment options, and the crew professionalism. My only complaint is the lacked of use of Spanish. As a Spanish speaker, I didn’t like this.
British Airways
6.7
Okay
8,072 reviews
JetBlue
7.1
Good
3,014 reviews
Check prices

Food

6.6

Comfort

7.5

Overall

7.1

Entertainment

7.2

Crew

7.9

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2024

BDL - SJU

My experience was very positive: I liked the big space among seats, the huge entertainment options, and the crew professionalism. My only complaint is the lacked of use of Spanish. As a Spanish speaker, I didn’t like this.
Avianca
6.5
Okay
2,537 reviews
JetBlue
7.1
Good
3,014 reviews
Check prices

Food

6.6

Comfort

7.5

Overall

7.1

Entertainment

7.2

Crew

7.9

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2024

BDL - SJU

My experience was very positive: I liked the big space among seats, the huge entertainment options, and the crew professionalism. My only complaint is the lacked of use of Spanish. As a Spanish speaker, I didn’t like this.

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 16h 34m. Fly via JetBlue, TAP AIR PORTUGAL, or Turkish Airlines to get the fastest option. The distance from London to Puerto Rico is about 4188 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, May is the cheapest month in which you can book a flight from London to Puerto Rico (average of £222). Flying from London to Puerto Rico in June is currently the most expensive (average of £560). 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.
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Stansted to Kingston flights
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Heathrow to St. George's flights
Heathrow to Port of Spain flights
Gatwick to Castries flights
London City to Punta Cana flights
London City to Montego Bay flights
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Luton to Punta Cana flights
Heathrow to Luis Munoz Marin Intl flights
Gatwick to St. John's flights
Stansted to Port of Spain flights
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Heathrow to Willemstad flights
Gatwick to St. George's flights
Heathrow to St. John's flights
Heathrow to Kingstown flights
Gatwick to Willemstad flights
Gatwick to Santo Domingo flights
Gatwick to Basseterre flights
Heathrow to Castries flights
Gatwick to Havana flights
Gatwick to Port of Spain flights
Gatwick to Luis Munoz Marin Intl flights
London City to Castries flights
Heathrow to Roseau flights
Heathrow to George Town flights
London City to Luis Munoz Marin Intl flights
Gatwick to Nassau flights
Stansted to Santo Domingo flights
Stansted to Luis Munoz Marin Intl flights
Gatwick to George Town flights
Heathrow to Basseterre 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 26 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£338Average£1,162FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£443Average£696FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
AviancaCheapest£502Average£605FlexibilityNo cancel feeOn-time71%
Search Avianca flights
IcelandairCheapest£512Average£694FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
IberiaCheapest£787Average£1,088FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£851Average£1,027FlexibilityNo 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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