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£329 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 15/7. 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
Sun 23/6
Sun 30/6

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 43,604,079 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 £523. On the other hand, the most expensive day to fly is Saturday, where prices are £984 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 £529 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 £977 and £856 respectively. For return trips, the best month to travel is February with an average price of £529.

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 £644 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 £1,023.

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 33 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 22m, and Culebra, which takes 15h 10m.

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

There are around 52 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 50% of flights departing in the morning.

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

Each week there are around 364 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

January

High season

July

Cheapest flight

£329
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly (28% more expensive 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 333 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, +91 more

ANA, AccesRail, +92 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, +91 more

ANA, AccesRail, +92 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 6793 reviews
7.7Crew
6.8Comfort
6.4Food
7.0Boarding
6.5Entertainment
Airline reviews

I couldn’t select my seat until I checked in at the airport. Extremely difficult to talk to a customer service representative. Also, the gate announcement doesn’t appear until less than an hour before boarding.

8.0 ExcellentAnonymous, May 2024PRG - LHR
Read more about British Airways reviews

I couldn’t select my seat until I checked in at the airport. Extremely difficult to talk to a customer service representative. Also, the gate announcement doesn’t appear until less than an hour before boarding.

They over sold the flight and I was not able to board. Had to buy two tickets so I would not miss my connection.

Wonderful service and very comfy in the bulkhead in Economy Plus! Delicious food.

On the flight from Venice to London even it’s short, 2 hours 20 minutes and mostly people are on vacation, it’s ridiculous to change money for the cup of tea or coffee. Also it’s to much to charge 80$ for 1 piece of luggage

Flying economy is like being packed into a sardine can.

The BA team at Sky Harbor is deplorable, full of unnecessary attitude and poor communication. It seems like every member of the team was looking at another to solve the problem, instead of taking agency to do so themselves. I saw no less than 6 altercations with the same gate agent where he threatened to revoke the passengers boarding pass for asking a wildly reasonable question, something as simple as where the cue to board was. I’ve complained to BA before but it seems this isn’t an issue for them, which is very disappointing

Boarding poor in London,ok in Chicago. Don’t like Heatrow/terminal5

It was very good. We got a late start by about an hour and a half. However I worked rather have that than crash. It was purely mechanical. They had our tickets ready when we came off the plane in London for the next leg. The only mishap was when we got to Lisbon my husbands luggage made or bit mine didn't. All was not lost because I did finally get it 2 days later. I was really pleased that they c made the effort.

Business lounge in Naples is very spartan with poor food and not very comfortable. Late departure from gate, ride bust then wait on runway for 30 minutes. Almost an hour late departing. Business class was middle seat empty. We exit row do reasonable comfort. Service was friendly and prompt but drink offerings limited with some selections requiring extra charge.

Liked that my American Airlines status seamlessly transferred to BA so luggage check was free. Flights were on time, boarding quick. Wish they didn’t assign connecting gate so late at Heathrow.

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.
11/11Mon
1 stopJetBlue
14h 46mSJU-LHR
19/11Tue
1 stopJetBlue
17h 15mLHR-SJU
£421
12/11Tue
1 stopJetBlue
14h 26mSJU-LHR
19/11Tue
1 stopJetBlue
17h 15mLHR-SJU
£478
11/9Wed
1 stopBritish Airways
14h 16mSJU-LHR
24/9Tue
1 stopBritish Airways
12h 30mLHR-SJU
£531
9/10Wed
1 stopAmerican Airlines
12h 11mSJU-LHR
16/10Wed
2 stopsAmerican Airlines
20h 32mLHR-SJU
£532
11/9Wed
2 stopsAmerican Airlines
14h 46mSJU-LHR
24/9Tue
1 stopAmerican Airlines
17h 05mLHR-SJU
£533
8/9Sun
1 stopUnited Airlines
14h 35mSJU-LHR
18/9Wed
2 stopsUnited Airlines
22h 07mLHR-SJU
£539
8/9Sun
1 stopUnited Airlines
14h 35mSJU-LHR
18/9Wed
1 stopUnited Airlines
15h 57mLHR-SJU
£546
4/11Mon
2 stopsAir Canada
25h 05mSJU-LHR
12/11Tue
2 stopsAir Canada
34h 36mLHR-SJU
£555
20/9Fri
2 stopsAir Canada
47h 35mSJU-LHR
30/9Mon
2 stopsAir Canada
19h 27mLHR-SJU
£583
6/11Wed
2 stopsBritish Airways
19h 34mSJU-LHR
12/11Tue
2 stopsBritish Airways
29h 39mLHR-SJU
£584

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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.
15/7Mon
3 stops
31h 46mSJU-LHR
£329
5/10Sat
3 stops
33h 40mSJU-LHR
£340
20/6Thu
2 stops
48h 05mSJU-LHR
£346
15/7Mon
1 stopJetBlue
15h 15mSJU-LHR
£350
5/10Sat
1 stopJetBlue
15h 59mSJU-LHR
£362
15/7Mon
2 stopsAmerican Airlines
14h 28mSJU-LHR
£414
4/6Tue
1 stopIberia
17h 25mSJU-LHR
£421
4/10Fri
2 stopsAir Canada
38h 55mSJU-LHR
£436
14/7Sun
1 stopAmerican Airlines
25h 30mSJU-LHR
£438
28/5Tue
1 stopBritish Airways
14h 35mSJU-LHR
£468

Search by stops

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Search by price

Last minute flights to Heathrow

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to London that are departing in the next 10 days.
29/5Wed
multi-stopAmerican Airlines
15h 00mSJU-LHR
12/6Wed
multi-stopAmerican Airlines
17h 30mLHR-SJU
£591
29/5Wed
multi-stopKLM
14h 15mSJU-LHR
12/6Wed
multi-stopKLM
24h 47mLHR-SJU
£610
29/5Wed
multi-stopAmerican Airlines
15h 00mSJU-LHR
12/6Wed
multi-stopAmerican Airlines
17h 19mLHR-SJU
£612
27/5Mon
multi-stopAmerican Airlines
13h 15mSJU-LHR
3/6Mon
multi-stopAmerican Airlines
18h 30mLHR-SJU
£639
27/5Mon
multi-stopUnited Airlines
35h 45mSJU-LHR
3/6Mon
multi-stopUnited Airlines
24h 49mLHR-SJU
£642
29/5Wed
multi-stopJetBlue
19h 28mSJU-LHR
2/6Sun
multi-stopJetBlue
18h 36mLHR-SJU
£786
29/5Wed
multi-stopUnited Airlines
14h 35mSJU-LHR
13/6Thu
multi-stopUnited Airlines
15h 57mLHR-SJU
£834
29/5Wed
multi-stopUnited Airlines
14h 35mSJU-LHR
13/6Thu
multi-stopUnited Airlines
20h 27mLHR-SJU
£838
26/5Sun
multi-stopAir Canada
24h 25mSJU-LHR
3/6Mon
multi-stopAir Canada
31h 31mLHR-SJU
£1,065
27/5Mon
multi-stopAir Canada
20h 10mSJU-LHR
3/6Mon
multi-stopAir Canada
31h 31mLHR-SJU
£1,069

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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: