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Cheap flights from London to Puerto Rico from £275

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SJU
2 Sep — 9 Sep1
1 adult

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 28 August 2025.

Round-trip from

£486

One-way from

£275

Popular in

December

Cheapest in

September

Average price

£775
11/11-14/11
  • 11/11-14/11
  • 2 total stops
  • 49h 54m total
  • London to Puerto Rico
Search Deals
4/12
  • 4/12
  • 1 total stop
  • 23h 52m total
  • London to Puerto Rico
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£9 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 August 2025
Search Deals

Find flight deals from London to Puerto Rico

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 August 2025.

Tue 11/1113:00LGW - SJU
1 stop32h 54mMultiple Airlines
Fri 14/1109:00SJU - LGW
1 stop17h 00mMultiple Airlines
Deal found 27/8£486
Thu 25/913:05LGW - SJU
1 stop25h 51mMultiple Airlines
Sun 28/921:26SJU - LGW
1 stop27h 54mMultiple Airlines
Deal found 27/8£489
Fri 5/1214:00LGW - SJU
1 stop31h 34mMultiple Airlines
Sat 13/1220:28SJU - LGW
1 stop33h 32mMultiple Airlines
Deal found 26/8£496
Mon 3/1113:00LGW - SJU
2 stops26h 19mMultiple Airlines
Wed 12/1109:00SJU - LGW
1 stop17h 00mMultiple Airlines
Deal found 27/8£506
Mon 10/1113:00LGW - SJU
1 stop18h 03mMultiple Airlines
Thu 13/1103:59SJU - LGW
2 stops22h 01mMultiple Airlines
Deal found 27/8£512
Tue 4/1113:00LGW - SJU
2 stops41h 54mMultiple Airlines
Wed 12/1109:00SJU - LGW
1 stop17h 00mMultiple Airlines
Deal found 27/8£518
Sun 9/1113:00LGW - SJU
1 stop32h 54mMultiple Airlines
Fri 14/1109:00SJU - LGW
1 stop17h 00mMultiple Airlines
Deal found 27/8£518
Thu 6/1112:20LHR - SJU
1 stop19h 28mJetBlue
Mon 10/1108:05SJU - LHR
1 stop21h 25mJetBlue
Deal found 25/8£519
Thu 9/1011:55LHR - SJU
1 stop14h 29mJetBlue
Thu 16/1014:25SJU - LHR
1 stop14h 05mJetBlue
Deal found 25/8£520
Tue 23/909:50LGW - SJU
2 stops29h 06mMultiple Airlines
Tue 30/921:26SJU - LGW
1 stop27h 54mMultiple Airlines
Deal found 26/8£520
Tue 23/908:15LHR - SJU
1 stop33h 27mJetBlue
Tue 30/918:05SJU - LHR
1 stop21h 40mJetBlue
Deal found 26/8£522
Sat 30/810:00LGW - SJU
1 stop27h 59mMultiple Airlines
Thu 4/921:26SJU - LGW
2 stops52h 34mMultiple Airlines
Deal found 27/8£523

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 August 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

Tue 11/11

13:00-17:54

1 stop32h 54m

San Juan Luis Munoz Marin Intl

Fri 14/11

09:00-06:00

1 stop17h 00m

£486

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 25/9

13:05-09:56

1 stop25h 51m

San Juan Luis Munoz Marin Intl

Sun 28/9

21:26-06:20

1 stop27h 54m

£489

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 5/12

14:00-19:21

1 stop33h 21m

San Juan Luis Munoz Marin Intl

Fri 12/12

02:59-10:05

1 stop27h 06m

£496

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 31/1

08:05-23:55

1 stop19h 50m

San Juan Luis Munoz Marin Intl

Tue 10/2

11:15-09:30

1 stop18h 15m

£500

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 3/11

13:00-11:19

2 stops26h 19m

San Juan Luis Munoz Marin Intl

Wed 12/11

09:00-06:00

1 stop17h 00m

£506

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 5/2

07:25-19:13

1 stop15h 48m

San Juan Luis Munoz Marin Intl

Sun 15/2

21:10-06:55

1 stop29h 45m

£509

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 10/11

13:00-03:03

1 stop18h 03m

San Juan Luis Munoz Marin Intl

Thu 13/11

03:59-06:00

2 stops22h 01m

£512

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 31/1

08:05-19:13

1 stop15h 08m

San Juan Luis Munoz Marin Intl

Tue 10/2

08:30-06:55

2 stops18h 25m

£514

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Tue 4/11

13:00-02:54

2 stops41h 54m

San Juan Luis Munoz Marin Intl

Wed 12/11

09:00-06:00

1 stop17h 00m

£518

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sun 9/11

13:00-17:54

1 stop32h 54m

San Juan Luis Munoz Marin Intl

Fri 14/11

09:00-06:00

1 stop17h 00m

£518

Flights are sorted by cheapest return flights first.

Deals found on 26/8

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, April is the cheapest month in which you can book a flight from London to Puerto Rico (average of £631). Flying from London to Puerto Rico in July is currently the most expensive (average of £1,027). 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 28 August 2025.

When flying from London to Puerto Rico, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 August 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
1,321 reviews
Check prices

Crew

8.1

Entertainment

6.9

Food

6.7

Comfort

7.5

Overall

7.6

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,321 reviews
Finnair
7.6
Good
1,321 reviews
Check prices

Crew

8.1

Entertainment

6.9

Food

6.7

Comfort

7.5

Overall

7.6

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
JetBlue
7.2
Good
2,920 reviews
Finnair
7.6
Good
1,321 reviews
Check prices

Crew

8.1

Entertainment

6.9

Food

6.7

Comfort

7.5

Overall

7.6

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Icelandair
7.0
Good
534 reviews
Finnair
7.6
Good
1,321 reviews
Check prices

Crew

8.1

Entertainment

6.9

Food

6.7

Comfort

7.5

Overall

7.6

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Iberia
7.0
Good
2,892 reviews
Finnair
7.6
Good
1,321 reviews
Check prices

Crew

8.1

Entertainment

6.9

Food

6.7

Comfort

7.5

Overall

7.6

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
British Airways
6.7
Okay
7,316 reviews
Finnair
7.6
Good
1,321 reviews
Check prices

Crew

8.1

Entertainment

6.9

Food

6.7

Comfort

7.5

Overall

7.6

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

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 48m. Fly via JetBlue or Icelandair 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, April is the cheapest month in which you can book a flight from London to Puerto Rico (average of £631). Flying from London to Puerto Rico in July is currently the most expensive (average of £1,027). 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
Gatwick to Kingston flights
Heathrow to Punta Cana flights
Heathrow to St. George's flights
Gatwick to Montego Bay flights
Gatwick to Punta Cana flights
London City to Bridgetown flights
Manchester to Bridgetown flights
London City to Montego Bay flights
Heathrow to Port of Spain flights
Heathrow to Castries flights
Heathrow to Nassau flights
London City to Kingston flights
Gatwick to St. John's flights
Heathrow to Luis Munoz Marin Intl flights
London City to Punta Cana flights
Heathrow to St. John's flights
Gatwick to Castries flights
Heathrow to Santo Domingo flights
Heathrow to Kingstown flights
Gatwick to St. George's flights
Gatwick to Santo Domingo flights
Manchester to Montego Bay flights
Gatwick to Port of Spain flights
Gatwick to Luis Munoz Marin Intl flights
Manchester to Punta Cana flights
Stansted to Punta Cana flights
Heathrow to George Town flights
Gatwick to Nassau flights
London City to Castries flights
Gatwick to Havana flights
London City to Santo Domingo flights
Heathrow to Simpson Bay flights
Birmingham to Montego Bay flights
London City to Luis Munoz Marin Intl flights
Luton to Punta Cana flights
Heathrow to Oranjestad flights
Heathrow to Basseterre flights
Heathrow to Roseau flights
Stansted to Santo Domingo flights
Stansted to Montego Bay flights
Heathrow to Castries flights
Heathrow to Scarborough flights
Luton to Montego Bay flights
Heathrow to Santiago de los Caballeros flights
Heathrow to Road Town flights
Heathrow to Providenciales 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 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£343Average£912FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£449Average£649FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
FinnairCheapest£453Average£560FlexibilityNo cancel feeOn-time76%
Search Finnair flights
JetBlueCheapest£458Average£595FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IberiaCheapest£510Average£810FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£537Average£777FlexibilityNo 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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