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£302 Find cheap flights from Puerto Rico to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Heathrow departing on 14/6. 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
0 bags
Fri 24/5
Fri 31/5

Search hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results for flights to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to London, as well as popular online travel agencies
In the last 7 days, travellers have searched 45,119,101 times on KAYAK, and here's why:

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Flights to Heathrow - Travel Insights & Trends

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

What is the cheapest day to fly to London?

The average price of all flights to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to London is Wednesday where tickets can be as cheap as £537. On the other hand, the most expensive day to fly is Sunday, where prices are £853 on average.

What is the cheapest month to fly to London Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to London Heathrow Airport, 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 to London Heathrow Airport is February, where tickets cost £579 on average for one-way flights. On the other hand, the most expensive months are June and July, where the average cost of tickets from Puerto Rico is £1,106 and £1,018 respectively. For return trips, the best month to travel is February with an average price of £579.

What is the cheapest time of day to fly to London Heathrow Airport?

The average price for all flights to London Heathrow Airport depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to London Heathrow Airport is generally in the afternoon, when flights cost £661 on average. The most expensive time of day to fly to London Heathrow Airport is generally at night, which is peak travel time and where the average cost of a ticket is £1,049.

How far in advance should I book a flight to London Heathrow Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 87 days before departure.

How long is the flight to London Heathrow Airport?

The duration of your flight to London depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular routes to London on KAYAK are from Ponce, which takes 12h 15m, San Juan, which takes 12h 35m, and Culebra, which takes 15h 10m.

How many direct flights to London Heathrow Airport are there each day?

There are around 57 direct flights from within Puerto Rico to London Heathrow Airport every day. Most flights depart in the morning, with 10:00 the most common departure time and 49% of flights departing in the morning.

How many direct flights to London Heathrow Airport are there each week?

Each week there are around 394 direct flights from within Puerto Rico to London Heathrow Airport. The most common day for departures is Tuesday, with 16% of flights taking off on this day.

Good to know - Cheap tickets from Puerto Rico to London Heathrow Airport

Low season

February

High season

May

Cheapest flight

£302
Best time to beat the crowds (23% less expensive on average)
Most popular time to fly and prices are also 6% lower on average.
Flight from San Juan to London Heathrow Airport

FAQs - booking London Heathrow Airport flights

  • How far is London Heathrow Airport from central London?

    You’ll need to travel 14 miles to reach the London city centre from London Heathrow Airport.

  • How does KAYAK find such low prices on flights to London Heathrow Airport?

    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 to London Heathrow Airport.

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

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

  • What is the Hacker Fare option on flights to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport 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 to London Heathrow Airport?

    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 to London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airline offers the most flights to London Heathrow Airport?

    Of the 2 airlines that fly to London Heathrow Airport, British Airways offers the most flights, with around 363 per week, followed by Loganair with 31 flights per week.

See more FAQs

Top tips for finding cheap flights to London Heathrow Airport

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London Heathrow Airport flight deals.

Prefer to fly direct to London Heathrow?

Find which airlines fly direct to Heathrow, which days they fly and book direct flights.

Direct departures

Puerto Rico to London Heathrow

Monday

ANA, AccesRail, Aegean Airlines, +89 more

ANA, AccesRail, +90 more

Tuesday

ANA, AccesRail, Aegean Airlines, +89 more

ANA, AccesRail, +90 more

Wednesday

ANA, AccesRail, Aegean Airlines, +92 more

ANA, AccesRail, +93 more

Thursday

ANA, AccesRail, Aegean Airlines, +86 more

ANA, AccesRail, +87 more

Friday

ANA, AccesRail, Aegean Airlines, +93 more

ANA, AccesRail, +94 more

Saturday

ANA, AccesRail, Aegean Airlines, +88 more

ANA, AccesRail, +89 more

Sunday

ANA, AccesRail, Aegean Airlines, +91 more

ANA, AccesRail, +92 more

See more direct flights

Direct returns

London Heathrow to Puerto Rico

Monday

ANA, AccesRail, Aegean Airlines, +89 more

ANA, AccesRail, +90 more

Tuesday

ANA, AccesRail, Aegean Airlines, +89 more

ANA, AccesRail, +90 more

Wednesday

ANA, AccesRail, Aegean Airlines, +92 more

ANA, AccesRail, +93 more

Thursday

ANA, AccesRail, Aegean Airlines, +86 more

ANA, AccesRail, +87 more

Friday

ANA, AccesRail, Aegean Airlines, +93 more

ANA, AccesRail, +94 more

Saturday

ANA, AccesRail, Aegean Airlines, +88 more

ANA, AccesRail, +89 more

Sunday

ANA, AccesRail, Aegean Airlines, +91 more

ANA, AccesRail, +92 more

See more direct flights
See more direct flights

Top airline flying from Puerto Rico to Heathrow

 
See real verified KAYAK customer reviews for airlines flying to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Puerto Rico to London. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Heathrow? 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.
6.8
British AirwaysOverall score based on 6924 reviews
7.7crew
6.8comfort
6.4food
6.5entertainment
7.0boarding
Airline reviews

The first class flight itself was first class, however getting to the airport and getting through the airport was agony. The BA flight sat on the taxiway for ages and caused us to miss our connecting flight which meant half a day lost. Our return flight on BA was cancelled so a dawn flight was made and we lost another half day. Goodby BA

2.0 MediocreAnonymous, Apr 2024AMS - LHR
Read more about British Airways reviews

The first class flight itself was first class, however getting to the airport and getting through the airport was agony. The BA flight sat on the taxiway for ages and caused us to miss our connecting flight which meant half a day lost. Our return flight on BA was cancelled so a dawn flight was made and we lost another half day. Goodby BA

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Starting with the flight Cairo to London the plain was so poor no entertainment at all uncomfortable seats although it’s 5 hours long,then an American airline plain took me from London to Miami it was a bad experience the crew most of flight time not available and they asked us to help our selves for any snacks if we need. From Miami to London actually was perfect flight with a huge plain and perfect crew but from London to Cairo was horrible plain with stiff fixed seats not movable no entertainment or wi fi very poor Menu which is unacceptable for a business class

There was some delay at Heathrow where a machine needed to "start the engines" wasn't available and they couldn't even find the team tasked to do it. Unacceptable. Caused about an hour delay and seemed unnecessary. Also saw several passengers abusing the overhead luggage situation, having too many large bags and not leaving enough space for others. The crew was good and the refreshments were good in quality and quantity.

They cancelled our ticket, gave us no warning, they reissued it 4 days prior to trip and it was cancelled again when we got to the airport- very stressful, the flight was overbooked so they drove us across Milan to malpensa

I've done hundreds of flights in my life, and this flight was one of the best I've ever taken, From beginning to end, everything went smoothly, professionally, and with a smile and friendly attitude from all employees I interacted with. The food was delicious (and free), as were the drinks. There was just a genial and effective way in the way that British Airways organized the flight -that reminded of days in the 70's, 80's, and 90's, when flying was a fun, and exciting adventure. I enjoyed and had confidence in the abilities of the flight crew, I'll be flying British Airways several more times this summer. Thank you so much for the great experience! Cheryl Olso

Some how I got “offloaded” even though I had my boarding pass Food was horrible Staff were nice and cheerful No headphones were provided

Terrible! I missed my flight to my final destination and British airlines and American Airlines keep pointing fingers on each other’s. Nobody wants to take responsibility

Overall, terrific service, accommodations, and experience. Only reason comfort was rated lower was because it was difficult to keep a comfortable sleeping position for the overnight flight, but I also had an economy seat.

Very Stress free Lounges were superb. Crews were caring. I loved it.

Book cheap flights from Puerto Rico to London

Recent return flight deals

 
These are the cheapest return flights to London found on KAYAK in the last 72 hours.
9/10Wed
1 stopAmerican Airlines
17h 46mSJU-LHR
16/10Wed
2 stopsAmerican Airlines
19h 57mLHR-SJU
£526
9/10Wed
2 stopsAmerican Airlines
14h 21mSJU-LHR
16/10Wed
2 stopsAmerican Airlines
19h 57mLHR-SJU
£530
21/8Wed
1 stopKLM
13h 45mSJU-LHR
28/8Wed
1 stopKLM
15h 34mLHR-SJU
£534
9/10Wed
1 stopAmerican Airlines
15h 16mSJU-LHR
16/10Wed
1 stopAmerican Airlines
17h 27mLHR-SJU
£550
8/10Tue
1 stopUnited Airlines
14h 35mSJU-LHR
16/10Wed
2 stopsUnited Airlines
26h 05mLHR-SJU
£552
9/10Wed
1 stopJetBlue
15h 00mSJU-LHR
16/10Wed
1 stopJetBlue
18h 36mLHR-SJU
£557
6/5Mon
1 stopJetBlue
19h 28mSJU-LHR
15/5Wed
1 stopJetBlue
20h 25mLHR-SJU
£557
7/9Sat
1 stopUnited Airlines
14h 35mSJU-LHR
19/9Thu
2 stopsUnited Airlines
22h 07mLHR-SJU
£575
5/9Thu
1 stopBritish Airways
12h 18mSJU-LHR
18/9Wed
1 stopBritish Airways
14h 05mLHR-SJU
£658
5/9Thu
1 stopBritish Airways
12h 18mSJU-LHR
19/9Thu
1 stopBritish Airways
26h 00mLHR-SJU
£680

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to London found on KAYAK in the last 72 hours.
14/6Fri
2 stops
54h 46mSJU-LHR
£302
21/8Wed
2 stops
25h 04mSJU-LHR
£329
15/9Sun
2 stops
25h 04mSJU-LHR
£340
18/10Fri
1 stopJetBlue
15h 00mSJU-LHR
£342
17/7Wed
1 stopJetBlue
19h 00mSJU-LHR
£359
29/4Mon
2 stopsUnited Airlines
24h 40mSJU-LHR
£423
8/10Tue
1 stopAvianca
21h 25mSJU-LHR
£424
8/10Tue
2 stopsLufthansa
18h 20mSJU-LHR
£440
17/10Thu
1 stopUnited Airlines
14h 35mSJU-LHR
£464
7/5Tue
1 stopAvianca
16h 25mSJU-LHR
£1,683

Search by stops

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Flights to London Heathrow Airport

Destination:

London Heathrow Airport (LHR)United Kingdom

Return flight deals:

London Heathrow Airport - Puerto Rico

Cabin classes: