What are the cheapest airlines to fly from Puerto Rico to London Heathrow Airport one-way?

The cheapest airline one-way is Iberia, with whom users have recently found tickets for as low as £301. However, be on the lookout for offers from JetBlue and Avianca, as they are both options that can get you from Puerto Rico to London Heathrow Airport for a low price.

What are the most popular routes from Puerto Rico to London Heathrow Airport?

The most popular flight routes from Puerto Rico to London Heathrow Airport are San Juan Luis Munoz Marin Intl - London Heathrow, Culebra - London Heathrow and Ponce Mercedita - London Heathrow.

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

Travelers have found it’s best to book a flight 45 days in advance to save up to 24% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 45 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Puerto Rico to London Heathrow Airport 1-2 weeks in advance for as low as £547, or £547 for flights within the next 24 hours.

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

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, September can be a great choice for travel to London Heathrow Airport. Flights to London Heathrow Airport from Puerto Rico in September are about £594 on average during September, but can be found for as low as £440.

Can I find deals for flights from Puerto Rico to Heathrow that include hotel bookings?

Yes. In addition to deals on Puerto Rico to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Puerto Rico to Heathrow?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Puerto Rico to Heathrow.

Can I find deals for business class flights from Puerto Rico to Heathrow?

Yes. Cheapflights offers flight deals from Puerto Rico to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£578+ Flights from Puerto Rico to London Heathrow Airport - Compare & Save Big

Cheap flight deals from Puerto Rico to Heathrow

Round-trip from	£489
One-way from	£265
Popular in	June
Cheapest in	September
Average price	£529

American Airlines
1/10-11/10
2 total stops
29h 05m total
Puerto Rico to London

Search Deals

11/5
2 total stops
24h 35m total
Puerto Rico to London

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£82 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Find flight deals from Puerto Rico to Heathrow

Cheapest flights from Puerto Rico to Heathrow
Explore the most affordable flight options available from Puerto Rico to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 April 2025.

Wed 1/1011:55SJU - LHR

1 stop16h 30mAmerican Airlines

Sat 11/1007:35LHR - SJU

1 stop12h 35mAmerican Airlines

Deal found 30/4£489

Tue 2/913:25SJU - LHR

1 stop12h 20mDelta

Tue 9/909:20LHR - SJU

1 stop17h 48mDelta

Deal found 30/4£492

Wed 24/903:15SJU - LHR

1 stop12h 30mJetBlue

Fri 10/1011:55LHR - SJU

1 stop18h 50mJetBlue

Deal found 29/4£500

Wed 3/915:58SJU - LHR

1 stop13h 37mBritish Airways

Wed 10/909:15LHR - SJU

1 stop14h 15mBritish Airways

Deal found 29/4£525

Tue 11/1115:28SJU - LHR

1 stop15h 07mKLM

Thu 20/1110:00LHR - SJU

2 stops17h 50mKLM

Deal found 29/4£531

Mon 10/1102:05SJU - LHR

1 stop15h 15mUnited Airlines

Thu 20/1107:40LHR - SJU

1 stop17h 15mUnited Airlines

Deal found 29/4£541

Tue 13/517:10SJU - LHR

1 stop22h 35mIcelandair

Tue 27/508:15LHR - SJU

1 stop22h 34mIcelandair

Deal found 30/4£544

Tue 28/1001:05SJU - LHR

2 stops26h 05mAir Canada

Fri 7/1118:00LHR - SJU

2 stops34h 36mAir Canada

Deal found 29/4£553

Fri 2/514:40SJU - LHR

2 stops23h 40mMultiple Airlines

Sun 4/507:25LHR - SJU

2 stops21h 27mMultiple Airlines

Deal found 28/4£612

Fri 29/814:05SJU - LHR

1 stop14h 20mIberia

Wed 10/909:15LHR - SJU

1 stop14h 15mIberia

Deal found 29/4£614

Wed 10/907:00SJU - LHR

2 stops18h 20mLufthansa

Thu 18/909:30LHR - SJU

2 stops19h 27mLufthansa

Deal found 29/4£691

Thu 12/601:59PSE - LHR

1 stop13h 46mJetBlue

Fri 20/608:15LHR - PSE

1 stop21h 04mJetBlue

Deal found 29/4£758

Best flights from Puerto Rico to Heathrow
Discover carefully curated flight deals from Puerto Rico to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 April 2025.

Wed 1/1011:55SJU - LHR

1 stop16h 30mAmerican Airlines

Sat 11/1007:35LHR - SJU

1 stop12h 35mAmerican Airlines

Deal found 30/4£489

Tue 2/913:25SJU - LHR

1 stop12h 20mDelta

Tue 9/909:20LHR - SJU

1 stop17h 48mDelta

Deal found 30/4£492

Wed 24/903:15SJU - LHR

1 stop12h 30mJetBlue

Fri 10/1011:55LHR - SJU

1 stop18h 50mJetBlue

Deal found 29/4£500

Wed 3/915:58SJU - LHR

1 stop13h 37mBritish Airways

Wed 10/909:15LHR - SJU

1 stop14h 15mBritish Airways

Deal found 29/4£525

Wed 27/814:39SJU - LHR

1 stop15h 31mKLM

Tue 9/909:55LHR - SJU

2 stops17h 13mKLM

Deal found 29/4£531

Tue 13/517:10SJU - LHR

1 stop22h 35mIcelandair

Tue 27/508:15LHR - SJU

1 stop22h 34mIcelandair

Deal found 30/4£544

Wed 3/913:25SJU - LHR

2 stops16h 15mUnited Airlines

Wed 10/908:30LHR - SJU

2 stops20h 27mUnited Airlines

Deal found 29/4£551

Fri 29/814:05SJU - LHR

1 stop14h 20mIberia

Wed 10/909:15LHR - SJU

1 stop14h 15mIberia

Deal found 29/4£614

Tue 30/901:05SJU - LHR

2 stops24h 25mAir Canada

Sat 11/1009:30LHR - SJU

2 stops31h 30mAir Canada

Deal found 29/4£688

Wed 10/907:00SJU - LHR

2 stops18h 20mLufthansa

Thu 18/909:30LHR - SJU

2 stops19h 27mLufthansa

Deal found 29/4£691

Tue 13/506:15SJU - LHR

2 stops32h 25mMultiple Airlines

Tue 27/507:25LHR - SJU

2 stops23h 36mMultiple Airlines

Deal found 30/4£694

Mon 7/715:00SJU - LHR

2 stops15h 10mAer Lingus

Mon 28/719:10LHR - SJU

2 stops35h 21mAer Lingus

Deal found 29/4£788

Last-minute flights from Puerto Rico to Heathrow
Discover last-minute flight deals from Puerto Rico to Heathrow. Data last updated 30 April 2025 and is based on user searches.

Wed 30/413:25SJU - LHR

2 stops36h 05mAir Canada

Tue 6/509:30LHR - SJU

2 stops19h 27mAir Canada

Deal found 30/4£749

Thu 1/503:29SJU - LHR

1 stop12h 16mJetBlue

Thu 22/508:15LHR - SJU

1 stop18h 15mJetBlue

Deal found 29/4£526

Fri 2/514:40SJU - LHR

2 stops23h 40mMultiple Airlines

Sun 4/507:25LHR - SJU

2 stops21h 27mMultiple Airlines

Deal found 28/4£612

Tue 13/517:10SJU - LHR

1 stop22h 35mIcelandair

Tue 27/508:15LHR - SJU

1 stop22h 34mIcelandair

Deal found 30/4£544

Mon 19/513:12SJU - LHR

1 stop13h 03mDelta

Thu 29/510:55LHR - SJU

2 stops16h 52mDelta

Deal found 30/4£608

Mon 19/513:25SJU - LHR

1 stop14h 55mUnited Airlines

Thu 29/512:15LHR - SJU

2 stops16h 42mUnited Airlines

Deal found 29/4£678

Mon 19/513:25SJU - LHR

2 stops18h 15mLufthansa

Thu 29/507:30LHR - SJU

2 stops21h 27mLufthansa

Deal found 29/4£833

Sat 24/514:10SJU - LHR

1 stop12h 55mBritish Airways

Sat 31/510:05LHR - SJU

1 stop18h 54mBritish Airways

Deal found 30/4£839

Sun 25/518:15SJU - LHR

1 stop16h 20mAvianca

Sun 1/622:05LHR - SJU

2 stops21h 55mAvianca

Deal found 30/4£955

Mon 26/515:35SJU - LHR

1 stop12h 50mIberia

Mon 16/612:15LHR - SJU

1 stop14h 30mIberia

Deal found 29/4£714

One-way flights from Puerto Rico to Heathrow
Search for one-way flight options from Puerto Rico to Heathrow. Find affordable one-way fares based on user searches. Data last updated 30 April 2025.

Sun 11/506:20SJU - LHR

2 stops24h 35mMultiple Airlines

Deal found 29/4£265

Fri 3/1013:55SJU - LHR

1 stop14h 30mIberia

Deal found 29/4£301

Thu 8/503:33SJU - LHR

1 stop12h 12mJetBlue

Deal found 29/4£309

Fri 9/514:10SJU - LHR

2 stops20h 25mAvianca

Deal found 29/4£330

Sat 23/818:40SJU - LHR

1 stop21h 00mLufthansa

Deal found 29/4£331

Sat 5/718:05SJU - LHR

1 stop20h 55mDelta

Deal found 29/4£340

Mon 1/912:43SJU - LHR

1 stop15h 07mKLM

Deal found 29/4£343

Thu 2/1001:05SJU - LHR

1 stop14h 35mUnited Airlines

Deal found 29/4£368

Sat 10/501:05SJU - LHR

2 stops24h 25mAir Canada

Deal found 29/4£371

Tue 6/513:58SJU - LHR

2 stops25h 22mIcelandair

Deal found 30/4£1,954

Cheapflights Fare Finder

Use the filters below to find and compare flights from Puerto Rico to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 1/10

11:55-09:25

1 stop16h 30m

London Heathrow

Sat 11/10

07:35-15:10

1 stop12h 35m

£489

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 2/9

13:25-06:45

1 stop12h 20m

London Heathrow

Tue 9/9

09:20-22:08

1 stop17h 48m

£492

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 24/9

03:15-20:45

1 stop12h 30m

London Heathrow

Fri 10/10

11:55-01:45

1 stop18h 50m

£500

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 3/9

15:58-10:35

1 stop13h 37m

London Heathrow

Wed 10/9

09:15-18:30

1 stop14h 15m

£525

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 27/8

14:39-11:10

1 stop15h 31m

London Heathrow

Tue 9/9

09:55-22:08

2 stops17h 13m

£531

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 13/5

17:10-20:45

1 stop22h 35m

London Heathrow

Tue 27/5

08:15-01:49

1 stop22h 34m

£544

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 3/9

13:25-10:40

2 stops16h 15m

London Heathrow

Wed 10/9

08:30-23:57

2 stops20h 27m

£551

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 29/8

14:05-09:25

1 stop14h 20m

London Heathrow

Wed 10/9

09:15-18:30

1 stop14h 15m

£614

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 30/9

01:05-06:30

2 stops24h 25m

London Heathrow

Sat 11/10

09:30-12:00

2 stops31h 30m

£688

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 10/9

07:00-06:20

2 stops18h 20m

London Heathrow

Thu 18/9

09:30-23:57

2 stops19h 27m

£691

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 23 results

Best time to book a flight from Puerto Rico to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Puerto Rico 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 Puerto Rico to London Heathrow Airport

What is the cheapest month to book a flight from Puerto Rico to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Puerto Rico to London Heathrow Airport (average of £112). Flying from Puerto Rico to London Heathrow Airport in August is currently the most expensive (average of £164). 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 PR to LHR?

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

Rainfall in Heathrow by month

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Delta

8.0

Very Good

7,934 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very Good

7,934 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,334 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,696 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

JetBlue

7.3

Good

2,922 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines to fly from Puerto Rico to London Heathrow Airport one-way?
The cheapest airline one-way is Iberia, with whom users have recently found tickets for as low as £301. However, be on the lookout for offers from JetBlue and Avianca, as they are both options that can get you from Puerto Rico to London Heathrow Airport for a low price.
What are the most popular routes from Puerto Rico to London Heathrow Airport?
The most popular flight routes from Puerto Rico to London Heathrow Airport are San Juan Luis Munoz Marin Intl - London Heathrow, Culebra - London Heathrow and Ponce Mercedita - London Heathrow.
Can I find deals for flights from Puerto Rico to Heathrow that include hotel bookings?
Yes. In addition to deals on Puerto Rico to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Puerto Rico to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Puerto Rico to Heathrow.
Can I find deals for business class flights from Puerto Rico to Heathrow?
Yes. Cheapflights offers flight deals from Puerto Rico to Heathrow 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 Puerto Rico to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Puerto Rico to London Heathrow Airport (average of £112). Flying from Puerto Rico to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Deal

Hounslow

Milton Keynes

Gatwick

Luton

Slough

Croydon

Eastbourne

Northampton

Southend-on-Sea

Ilford

Crawley

Hayes

Ipswich

Watford

Wembley

Swindon

Folkestone

Maidstone

Winchester

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

How does Cheapflights help users find flights from Puerto Rico to Heathrow?

Cheapflights helps you search for flights from Puerto Rico to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Puerto Rico to Heathrow?

Cheapflights simply makes it quick and affordable to book flights from Puerto Rico to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Puerto Rico to Heathrow with no change fees?

Yes, we can. To see specific flights from Puerto Rico to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Puerto Rico to Heathrow become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Puerto Rico to London Heathrow Airport from £265

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Puerto Rico to Heathrow

Keep the following information in mind while searching for Puerto Rico to Heathrow flight deals. Data was last updated 30 April 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Puerto Rico to Heathrow

Cheapest flights from Puerto Rico to HeathrowExplore the most affordable flight options available from Puerto Rico to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 April 2025.

Explore the most affordable flight options available from Puerto Rico to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 April 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Puerto Rico to London Heathrow Airport that are best for you.

Best time to book a flight from Puerto Rico to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Puerto Rico with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Puerto Rico to London Heathrow Airport

What is the cheapest month to book a flight from Puerto Rico to London Heathrow Airport?

What is the cheapest time of day to fly from PR to LHR?

Find hourly flight availability from Puerto Rico to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 April 2025.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

Reviews of airlines servicing Heathrow

Related info for your journey

Find useful and relevant information for your journey from Puerto Rico to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines to fly from Puerto Rico to London Heathrow Airport one-way?

What are the most popular routes from Puerto Rico to London Heathrow Airport?

Can I find deals for flights from Puerto Rico to Heathrow that include hotel bookings?

How can I find direct flights from Puerto Rico to Heathrow?

Can I find deals for business class flights from Puerto Rico to Heathrow?

What is the cheapest month to book a flight from Puerto Rico to London Heathrow Airport?

Travelling to a place near Puerto Rico?

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 Puerto Rico to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

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 Puerto Rico to Heathrow?

Why should you use Cheapflights to find cheap flight tickets from Puerto Rico to Heathrow?

Can Cheapflights find flights from Puerto Rico to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from Puerto Rico to Heathrow become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Puerto Rico to Heathrow
Explore the most affordable flight options available from Puerto Rico to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 April 2025.