£232 Find Cheap Flights from London to Puerto Rico

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Puerto Rico departing on 25/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Best Puerto Rico Flight Deals from London

Cheapest return prices found by our users on KAYAK in the last 72 hours
Aguadilla
Aguadilla2 stops£808
Aguadilla
Aguadilla2 stops£808

Cheap Flights from London to Puerto Rico

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Puerto Rico that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Puerto Rico

Tue, 9 Sep - Wed, 24 Sep
Icelandair Logo
12:10 - 12:07LGW-SJU
28h 57m1 stop
Icelandair Logo
06:00 - 09:35SJU-LGW
22h 35m2 stops
£378Icelandair
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Tue, 9 Sep - Wed, 24 Sep
Icelandair Logo
12:10 - 12:07LGW-SJU
28h 57m1 stop
Icelandair Logo
06:00 - 09:35SJU-LGW
22h 35m2 stops
£393Icelandair
Find Deal
Fri, 8 Aug - Fri, 15 Aug
JetBlue Logo
08:25 - 00:49LHR-SJU
21h 24m1 stop
JetBlue Logo
06:00 - 06:30SJU-LHR
19h 30m1 stop
£394JetBlue
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Tue, 9 Sep - Wed, 24 Sep
Icelandair Logo
08:25 - 12:07LHR-SJU
32h 42m1 stop
Icelandair Logo
06:00 - 09:30SJU-LHR
22h 30m1 stop
£405Icelandair
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Wed, 3 Sep - Wed, 17 Sep
JetBlue Logo
08:15 - 16:52LHR-SJU
13h 37m1 stop
JetBlue Logo
18:15 - 20:45SJU-LHR
21h 30m1 stop
£445JetBlue
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Thu, 6 Nov - Sat, 15 Nov
TAP AIR PORTUGAL Logo
10:40 - 03:49LGW-SJU
21h 09m2 stops
TAP AIR PORTUGAL Logo
12:10 - 09:50SJU-LGW
17h 40m2 stops
£601TAP AIR PORTUGAL
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Thu, 6 Nov - Sat, 15 Nov
TAP AIR PORTUGAL Logo
10:40 - 03:49LGW-SJU
21h 09m2 stops
TAP AIR PORTUGAL Logo
12:10 - 09:50SJU-LGW
17h 40m2 stops
£603TAP AIR PORTUGAL
Find Deal
Sat, 15 Nov - Tue, 18 Nov
Air Canada Logo
13:25 - 23:57LHR-BQN
38h 32m2 stops
Air Canada Logo
01:09 - 07:10BQN-LHR
26h 01m2 stops
£808Air Canada
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Sat, 15 Nov - Tue, 18 Nov
Air Canada Logo
13:25 - 23:57LHR-BQN
38h 32m2 stops
Air Canada Logo
01:09 - 07:10BQN-LHR
26h 01m2 stops
£809Air Canada
Find Deal
Sun, 14 Dec - Sun, 21 Dec
British Airways Logo
19:15 - 19:55LCY-SJU
28h 40m1 stop
British Airways Logo
06:40 - 17:30SJU-LCY
30h 50m2 stops
£1,107British Airways
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KAYAK's insights & trends for London to Puerto Rico flights

Get data-powered insights and trends into flights from London to Puerto Rico to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from London to Puerto Rico?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Puerto Rico, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Puerto Rico is September, when tickets cost £536 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of return tickets is £932 and £890 respectively.

What’s the cheapest day of the week to fly from London to Puerto Rico?

The average price of all round-trip flights from London to Puerto Rico clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Puerto Rico on a Monday and more expensive on a Friday. On your return trip to London, you should consider flying back on a Tuesday, and avoid Saturdays for better deals.

How far in advance should I book a flight from London to Puerto Rico?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London to Puerto Rico, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on the flight from London to Puerto Rico, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.


Good to know - Cheap tickets from London to Puerto Rico

Low seasonJune
High seasonDecember
Cheapest flight£232
Best time to beat the crowds (5% less expensive on average)
Most popular time to fly (34% more expensive on average)
Flight from London Heathrow Airport to San Juan

FAQs - booking Puerto Rico flights

  • Do I need a car seat to drive in Puerto Rico?

    In Puerto Rico, children under 12 years may not sit in the front seat. If your kid is between four and eight years or has a height of fewer than 57 inches, you are legally required to place them in a booster seat. A child safety seat is mandatory for children under four years.

  • Do I need a visa to visit Puerto Rico?

    UK citizens need a visa to travel to Puerto Rico. It may take up to five days to acquire the visa, so be sure to start the application process a few days before your flight. Note that the Puerto Rican Counsel has the discretion to offer visas or not.

  • Which airport is closest to El Morro Fort?

    If you are in Puerto Rico to explore the remarkable beauty of the centuries-old El Morro Fort, consider making Luis Muñoz Marín International Airport your arrival point. You can take a taxi to the fort and arrive in roughly 30 minutes. If not in a hurry, taking a bus is more fun. Buses go as far as Cataño, where you can take a ferry to El Morro Fort.

  • Which airlines fly direct from London to Puerto Rico?

    No airlines provide direct flights from London to Puerto Rico. However, most of them offer one-stop trips. If you prefer a stop in Miami, fly with Finnair. You may use JetBlue if you are up for a stop in Boston or New York.

  • How does KAYAK find such low prices on flights from London to Puerto Rico?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Puerto Rico.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Puerto Rico?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London to Puerto Rico is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Puerto Rico?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from London to Puerto Rico with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Puerto Rico?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London to Puerto Rico up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Puerto Rico?

    The cheapest time of day to fly to Puerto Rico is generally in the morning, when retur flights cost £762 on average. Morning departures are around 13% cheaper than evening flights, on average. The most expensive time of day to fly to Puerto Rico is generally at night, which is peak travel time and where the average cost of a ticket is £973.

Top tips for finding a cheap flight from London to Puerto Rico

  • London Heathrow (LHR) is the departure point for some of the cheapest flights from London to Puerto Rico. The airport is also an ideal place to board your plane as most airlines for the London-Puerto Rico route start their flights here. Further, it is an excellent place to treat yourself to shopping therapy, having been voted the best airport to shop for several years. Other departure airports include London Gatwick (LGW), London Stansted (STN), London City Airport (LCY), and London Luton (LTN).
  • At the moment, direct flights from London to Puerto Rico are unavailable. Thus, consider selecting a flight route with a stop in a city you would love to tour. Possible stopovers occur in major US cities such as Miami, Charlotte, and Boston. Trips may feature at most two transfers. Note that one-stop flights are cheaper than journeys with two stopovers.
  • At the end of your journey, you may arrive at any of three major airports in Puerto Rico. Most flights arrive at Luis Muñoz Marín International Airport (SJU). Given its accessibility and proximity to San Juan, the airport is an excellent arrival point for travellers who wish to tour Eastern Caribbean. Additionally, the airport is ideal for sightseers travelling to cities like Bogota and Panama. The other two airports, Rafael Hernández Airport and Mercedita International Airport, are favourable for those planning to tour the Northwest and South parts of Puerto Rico, respectively.
  • Being a large city, most London airports are usually busy and feature long queues at security checkpoints. Notably, London Gatwick has shorter lines. The airport has automatic gates, which keeps delays low. However, the airport opens its boarding gates a few minutes before departure. If you arrive too early, you may have to spend some money dining in its on-site restaurants.
  • Touring the numerous attractions in Puerto Rico is more fun with a rental car. At Luis Muñoz Marín International Airport, the car rental centre is on the first floor of the terminal building. Similarly, you can hire your preferred vehicle type at Rafael Hernández Airport at the counters located in the Baggage Claim area. If you arrive at Mercedita International Airport, rent a car in the terminal building near Baggage Claims.

Reviews of the top 5 airlines flying from London to Puerto Rico

 
Need help choosing which airline to fly with from London to Puerto Rico? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
FinnairOverall score based on 1312 reviews
7.6Boarding
8.1Crew
6.9Entertainment
7.5Comfort
6.7Food
Airline reviews

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

8.0 ExcellentSandrine, Jul 2025JFK - DCA
Read more Finnair reviews

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

We had an excellent trip with Finnair. This was our first time and we’re very pleased. The only issue was with the boarding - it was a little bit confusing and needs a little bit of streamlining.

Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.

Flight delayed over an hour. They said they would hold our connection but then did not.

Major problems checking in at Alaska counter. They could not find our booking code because it came from Finnair.

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

The staff were all particularly great. The plane was clean and fresh. The bassinet worked great. It was all very nice.

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

Any flight that lands safely is a good flight. However our leg from Helsinki was delayed 1 hour with no explanation. The delay would not allow us to make our connection to Cincinnati. I was informed by American Airlines that our Cincinnati flight was rescheduled for the following day. I immediately made a non refundable hotel reservation in Dallas. Upon exiting the plane at Dallas I was given a hotel voucher. Nice, but I can't get a refund on the hotel I booked. A little communication would have been helpful. Food on Finnair is below quality of Korean Air.

I especially liked the lead crew officer. His boarding and safety announcements were made with a bit of novelty and humor. The flight also left the gate 10 minutes early and we landed about 20 minutes early… It was a delightful flight…

Seats were not too comfortable; it was impossible to locate the underseat power outlet.

You get what you pay for with JetBlue. Every little thing costs more, you are nickel and dimed until the end. Entertainment doesn’t function. Flight attendants do the bare minimum.

Excellent from start to finish. All staff members were amazing!

Excellent. Although they used to greet me as a mosaic member and provide a free drink, early boarding helps me to keep coming back to JetBlue.

It was too hot in the cabin. The AC did not help.

The regular feedback of any changes to our flights. The Jetblue staff were very helpful. Our flights were great. Lots of leg room!

No music app working: no economy meal on five hour flight; hour on tarmac at the end waiting for a gate. Flight itself was smooth and easy.

Overall was excellent. Will definitely us JetBlue in the future.

Very well organized both boarding and deplaning. Very satisfied with the service I received.

Good service. No complementary food for international flight. WiFi kinda pricey. Got the job done for the right price.

Still one of my favorite airlines, but the entertainment options were a bit lacking. It didn't help that my screen didn't work on one of the legs of the trip.

The plane was very small and the aisle was so narrow that every time someone walked by they rubbed against me, so it was very uncomfortable.

Overall good for an economy fare. IMO the movie selection could be improved. Great that you can now connect bluetooth headphones to the entertainment system.

For a four hour flight, I was disappointed that everything was for purchase except for coffee, tea, or water. The disembarking in Iceland was so inefficient and time-consuming. We landed and stopped in the middle of the tarmac, had to disembark in the rain, and then squeeze into a bus which took us to the airport. Crazy! How does that work in winter?

Comfort of seats is not good. Like sitting on a rock for 6 hours. Also no in flight food and limited beverages unless you pay is not nice. Need flight to be dark during the “night” but attendants don’t ask for shades to be lowered..

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

I had an exit row and so was Comfortable on the long flight.

The seats on this airline are sooo small, even for a petite person. I felt like the seat tilted forward and I was fighting to stay in it. The lavatory is horribly small, with a wet floor because the sink is so small you can't help but splash the water all over when washing up.

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Boarding on the buses isn’t efficient. Overall, it was great.

ground crew and check-in was pathetic - insisted on charging me for luggage even though the ticket said it was already included. They also accidentally sent my luggage through without a luggage tag and had to retrieve it. Generally, it was like a bad movie.

Flight was delayed 3 hours and 15 minutes. The delay caused me to miss my tour group due to arriving late.

Well my luggage was damaged and they lost the plastic cover. I need to file a claim and I would like for someone to follow up with me on this. Thanks.

Excellent! Outstanding customer service, the best service I have received. Food was served, dinner, snacks, beverages, crew was there to greet you. 10/10

Charging $300 to be able to pick a seat next to your wife was nothing less than extortion.

I’m very mad because I paid an extra $105 to change seats to an exit row with more leg room. The app clearly showed a gap in between the seats in the row I changed my seat to and I paid for it. When I boarded the plane, it wasn’t an exit row seat and no more room than my original seat. I feel like I was ripped off $105.

I had a great experience , crew was great and enjoyed the entertainment options I will be booking my next International trip with them .

Front desk was closed at 6 pm, I was unable to get my boarding pass and as such missed my connecting flight home.

Awful. The flight wasn't actually operated by Iberia, but by American Airlines. I was unable to get my boarding pass and as a result missed my connecting flight.

Experience with British Airways was hopeless and the response from ground staff after flight cancellation was hopeless

3/4 bags delayed and 1/4 damaged at the other end. Flight was freezing

this was a good experience from on time boarding and take off to early arrival. Comfortable seats became empty seat next to me.

Cancelled flight, limited information and chaotic rebooking and accommodation provision. Apathetic crew who were more interested in taking about their layover plans than remembering passengers orders and actually bringing them (after 3 reminders). To top it off, priority baggage checked in at The Wing (LHR’s first class checkin) was delivered last to the baggage belt.

The crew were good. The flight was on time. The entertainment choice was ok. But the food was bad, tasted and texture were awful.

After boarding we were waiting in the plane for more than one hour to take off without AC with very high temperature inside

The flight was an hour late leaving Heathrow. The food was mediocre. When we got to Austin, my husband’s luggage was missing. He filled out information at baggage claim. We are waiting to hear something. His name is Henry Jacob Braunig.

Only for BA because we had to get to Edinburgh at a certain time. Baggage lost, late boarding with only one person checking, again, our passports and boarding passes until the despatch controller had to step in to get us away. Will never fly BA again.

The food was very good and it came multiple times

Flight from LGW to JFK delayed by 4 hrs No explanation given until the pilot said the delay due to planned maintenance on the aircraft

Everything you need to know for your flight from London to Puerto Rico

Cabin class types available on flights to Puerto Rico

Cabin classes available on flights to Puerto Rico. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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