Cheap flights from London to Puerto Rico from £292

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 27/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SJU
16 Jan — 23 Jan1
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 17 December 2025.

Tue 16/1209:20LHR - SJU
1 stop18h 34mJetBlue
Tue 17/223:50SJU - LHR
1 stop17h 50mJetBlue
Deal found 15/12£791
Mon 29/1209:20LHR - SJU
1 stop18h 36mJetBlue
Sat 10/108:00SJU - LHR
1 stop18h 55mJetBlue
Deal found 16/12£800
Fri 26/1209:20LHR - SJU
1 stop18h 36mJetBlue
Tue 30/1220:55SJU - LHR
1 stop20h 45mJetBlue
Deal found 15/12£806
Thu 25/1212:20LHR - SJU
1 stop14h 14mJetBlue
Wed 31/1211:40SJU - LHR
1 stop17h 50mJetBlue
Deal found 17/12£825
Tue 30/1209:20LHR - SJU
1 stop18h 36mJetBlue
Sat 10/119:15SJU - LHR
1 stop31h 40mJetBlue
Deal found 15/12£831
Wed 17/1209:20LHR - SJU
1 stop18h 34mJetBlue
Wed 25/223:59SJU - LHR
1 stop17h 41mJetBlue
Deal found 15/12£836
Sat 27/1209:20LHR - SJU
1 stop18h 36mJetBlue
Mon 5/120:55SJU - LHR
1 stop20h 45mJetBlue
Deal found 15/12£841
Wed 24/1209:20LHR - SJU
1 stop18h 36mJetBlue
Wed 31/1210:38SJU - LHR
1 stop18h 52mJetBlue
Deal found 16/12£864
Wed 24/1212:20LHR - SJU
1 stop17h 39mJetBlue
Tue 30/1220:55SJU - LHR
1 stop20h 45mJetBlue
Deal found 16/12£871
Thu 25/1212:20LHR - SJU
1 stop18h 39mJetBlue
Tue 30/1220:55SJU - LHR
1 stop20h 45mJetBlue
Deal found 15/12£880
Tue 30/1209:20LHR - SJU
1 stop14h 05mJetBlue
Thu 8/105:01SJU - LHR
1 stop12h 39mJetBlue
Deal found 16/12£891
Thu 25/1214:00LGW - SJU
1 stop16h 12mMultiple Airlines
Tue 30/1213:21SJU - LGW
2 stops21h 09mMultiple Airlines
Deal found 15/12£922

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 17 December 2025.

Round-trip from

£460

One-way from

£292

Popular in

December

Cheapest in

September

Average price

£957
JetBlue
  • JetBlue
  • 28/1-11/2
  • 2 total stops
  • 49h 53m total
  • London to Puerto Rico
27/2
  • 27/2
  • 2 total stops
  • 33h 10m total
  • London to Puerto Rico
Highest demand for flights based on searches. 5% potential increase in price (£28 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Average for round-trip flights in December 2025

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 17 December 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

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Wed 28/1

07:25-19:53

1 stop16h 28m

Aguadilla Borinquen

Wed 11/2

08:15-21:40

1 stop33h 25m

£460

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 16/1

12:20-00:58

1 stop16h 38m

San Juan Luis Munoz Marin Intl

Mon 26/1

06:05-09:30

1 stop23h 25m

£545

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 28/1

19:40-11:35

2 stops19h 55m

San Juan Luis Munoz Marin Intl

Sun 8/2

07:10-06:00

1 stop18h 50m

£548

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Mon 2/2

09:35-19:55

1 stop14h 20m

San Juan Luis Munoz Marin Intl

Mon 9/2

21:25-14:05

1 stop12h 40m

£565

LondonAguadilla

LHR - BQN

LHRBQN

London Heathrow

Thu 5/3

12:20-00:44

1 stop16h 24m

Aguadilla Borinquen

Sun 8/3

01:32-20:45

1 stop15h 13m

£595

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 24/4

14:00-08:47

1 stop23h 47m

San Juan Luis Munoz Marin Intl

Mon 4/5

19:05-10:00

1 stop33h 55m

£595

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 13/1

12:20-02:25

1 stop18h 05m

San Juan Luis Munoz Marin Intl

Tue 20/1

14:00-06:55

1 stop12h 55m

£606

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Sat 7/3

16:20-17:05

2 stops28h 45m

San Juan Luis Munoz Marin Intl

Sat 14/3

18:30-23:35

2 stops25h 05m

£618

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 16/1

11:55-15:35

3 stops31h 40m

San Juan Luis Munoz Marin Intl

Mon 26/1

06:00-10:55

3 stops24h 55m

£637

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 14/1

13:00-12:42

2 stops27h 42m

San Juan Luis Munoz Marin Intl

Sun 18/1

03:58-10:00

1 stop26h 02m

£640

Flights are sorted by cheapest return flights first.

Deals found on 16/12

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, June is the cheapest month in which you can book a flight from London to Puerto Rico (average of £439). Flying from London to Puerto Rico in December is currently the most expensive (average of £542). 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 17 December 2025.

It’s optimal to fly from London to Puerto Rico in the evening. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight at midday.

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 17 December 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.

Entertainment

6.9

Crew

8.1

Overall

7.6

Food

6.7

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Entertainment

6.9

Crew

8.1

Overall

7.6

Food

6.7

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Entertainment

6.9

Crew

8.1

Overall

7.6

Food

6.7

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Entertainment

6.9

Crew

8.1

Overall

7.6

Food

6.7

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Entertainment

6.9

Crew

8.1

Overall

7.6

Food

6.7

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Entertainment

6.9

Crew

8.1

Overall

7.6

Food

6.7

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

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 28m. Fly via JetBlue, TAP AIR PORTUGAL, or British Airways to get the fastest option. The distance from London to Puerto Rico is about 4224 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?

  • 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, June is the cheapest month in which you can book a flight from London to Puerto Rico (average of £439). Flying from London to Puerto Rico in December is currently the most expensive (average of £542). 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.

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 17 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£333Average£1,125FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£450Average£549FlexibilityNo cancel feeOn-time76%
Search Finnair flights
JetBlueCheapest£457Average£610FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IcelandairCheapest£486Average£651FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
IberiaCheapest£501Average£871FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£539Average£954FlexibilityNo 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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