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Cheap flights from Puerto Rico to London from £239

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — LON
17 Apr — 24 Apr1
1 adult

Cheap flight deals from Puerto Rico to London

Keep the following information in mind while searching for Puerto Rico to London flight deals. Data was last updated 12 April 2025.

Round-trip from

£500

One-way from

£239

Popular in

June

Cheapest in

September

Average price

£539
United Airlines
  • United Airlines
  • 30/4-6/5
  • 3 total stops
  • 34h 02m total
  • Puerto Rico to London
Search Deals
2/10
  • 2/10
  • 1 total stop
  • 26h 54m total
  • Puerto Rico to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£84 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 London

Cheapest flights from Puerto Rico to London
Explore the most affordable flight options available from Puerto Rico to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 April 2025.

Wed 30/407:25SJU - LHR
2 stops18h 05mUnited Airlines
Tue 6/513:00LHR - SJU
1 stop15h 57mUnited Airlines
Deal found 11/4£500
Tue 22/400:58SJU - LHR
1 stop14h 47mJetBlue
Fri 2/508:15LHR - SJU
1 stop15h 51mJetBlue
Deal found 11/4£501
Tue 2/912:43SJU - LHR
1 stop15h 07mKLM
Tue 9/910:55LHR - SJU
1 stop16h 47mKLM
Deal found 11/4£506
Wed 29/1014:28SJU - LHR
2 stops15h 47mDelta
Fri 7/1120:00LHR - SJU
2 stops25h 15mDelta
Deal found 11/4£507
Wed 10/911:55SJU - LHR
1 stop14h 00mAmerican Airlines
Thu 18/908:55LHR - SJU
2 stops16h 15mAmerican Airlines
Deal found 11/4£509
Sun 24/812:43SJU - LGW
1 stop16h 17mAir France
Sun 7/912:00LGW - SJU
1 stop16h 46mAir France
Deal found 11/4£511
Tue 13/513:25SJU - LCY
2 stops22h 00mMultiple Airlines
Tue 20/508:45LCY - SJU
2 stops20h 09mMultiple Airlines
Deal found 11/4£527
Sat 26/417:11SJU - LHR
2 stops38h 59mAir France
Mon 5/508:55LHR - SJU
2 stops40h 28mAir France
Deal found 11/4£562
Sat 2/812:56SJU - LGW
2 stops16h 04mDelta
Sun 17/812:00LGW - SJU
1 stop16h 46mDelta
Deal found 11/4£567
Tue 13/519:30SJU - LGW
1 stop33h 30mMultiple Airlines
Tue 20/514:00LGW - SJU
2 stops26h 31mMultiple Airlines
Deal found 11/4£599
Fri 29/814:05SJU - LHR
1 stop14h 20mIberia
Wed 10/906:15LHR - SJU
1 stop17h 15mIberia
Deal found 11/4£655
Mon 12/501:05SJU - LHR
2 stops24h 25mAir Canada
Tue 20/509:30LHR - SJU
2 stops19h 27mAir Canada
Deal found 11/4£672

Cheapflights Fare Finder

Customise your flight search to find flights from Puerto Rico to London 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 12 April 2025.
Use the filters below to find and compare flights from Puerto Rico to London that are best for you.

Fly from

Puerto Rico

Fly to

London

Route

Depart

Return

Price

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 30/4

17:11-13:30

1 stop15h 19m

London Heathrow

Tue 6/5

10:55-23:48

1 stop17h 53m

£500

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 22/4

00:58-20:45

1 stop14h 47m

London Heathrow

Fri 2/5

08:15-19:06

1 stop15h 51m

£501

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 22/4

13:25-10:40

2 stops16h 15m

London Heathrow

Wed 30/4

09:30-23:54

2 stops19h 24m

£503

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 20/8

15:08-10:55

1 stop14h 47m

London Heathrow

Wed 10/9

07:10-18:30

2 stops16h 20m

£505

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Sun 24/8

12:43-10:00

1 stop16h 17m

London Gatwick

Sun 7/9

12:00-23:46

1 stop16h 46m

£511

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 20/5

13:12-07:15

1 stop13h 03m

London Heathrow

Thu 29/5

12:25-23:42

1 stop16h 17m

£511

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 14/5

14:31-12:35

2 stops17h 04m

London Heathrow

Wed 21/5

20:10-12:01

1 stop20h 51m

£513

San JuanLondon

SJU - LCY

SJULCY

San Juan Luis Munoz Marin Intl

Tue 13/5

13:25-16:25

2 stops22h 00m

London City

Tue 20/5

08:45-23:54

2 stops20h 09m

£527

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 26/4

15:34-13:10

2 stops40h 36m

London Heathrow

Mon 5/5

08:55-20:23

2 stops40h 28m

£561

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Sat 2/8

12:56-10:00

2 stops16h 04m

London Gatwick

Sun 17/8

12:00-23:46

1 stop16h 46m

£567

Flights are sorted by cheapest return flights first.

Deals found on 11/4

Showing 1-10 of 41 results
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Best time to book a flight from Puerto Rico to London

Have a flexible travel schedule? Discover the best time to fly to London 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

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

Currently, January is the cheapest month in which you can book a flight from Puerto Rico to London (average of £112). Flying from Puerto Rico to London 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 LON?

Find hourly flight availability from Puerto Rico to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 April 2025.

When flying from Puerto Rico to London, 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 London by month

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

In terms of precipitation, rainfall in London 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 when rainfall is around 40.0 mm.

Temperature in London by month

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

If weather is an important factor for your trip to London, 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 London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 12 April 2025.
Read through reviews of airlines operating flights from Puerto Rico to London, such as Delta, KLM and Air France. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,913 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

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
7,913 reviews
Delta
8.0
Very Good
7,913 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

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
1,321 reviews
Delta
8.0
Very Good
7,913 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

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.
Air France
7.4
Good
1,428 reviews
Delta
8.0
Very Good
7,913 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

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
8,644 reviews
Delta
8.0
Very Good
7,913 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

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.
Virgin Atlantic
7.4
Good
641 reviews
Delta
8.0
Very Good
7,913 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

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

Find useful and relevant information for your journey from Puerto Rico to London. 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 one-way?

    The cheapest airline one-way is JetBlue, with whom users have recently found tickets for as low as £265. However, be on the lookout for offers from United Airlines and Lufthansa, as they are both options that can get you from Puerto Rico to London for a low price.

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

    When deciding which route to take from Puerto Rico to London consider San Juan Luis Munoz Marin Intl - London Heathrow, San Juan Luis Munoz Marin Intl - London Gatwick or San Juan Luis Munoz Marin Intl - London City as they are the most popular.

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

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

  • How can I find direct flights from Puerto Rico to London?

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

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

    Yes. Cheapflights offers flight deals from Puerto Rico to London 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?

    Currently, January is the cheapest month in which you can book a flight from Puerto Rico to London (average of £112). Flying from Puerto Rico to London 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

Travelling to a place near Puerto Rico?

Book flights to Puerto Rico if you plan to visit one of these locations
Hounslow
Deal
Milton Keynes
Luton
Gatwick
Croydon
Slough
Eastbourne
Wembley
Crawley
Hayes
Southend-on-Sea
Maidstone
Ilford
Winchester
Ipswich
Southall
Folkestone
Dartford
Watford

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 London

See prices for flight routes from nearby airports that may be better suited for you.
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George Town to Heathrow flights
Kingston to Gatwick flights
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Montego Bay to Heathrow flights
Luis Munoz Marin Intl to Gatwick flights
Providenciales to Heathrow flights
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George Town to Gatwick flights
Port of Spain to Gatwick flights
Montego Bay to Gatwick flights
Castries to Gatwick flights
Oranjestad to Heathrow flights
Bridgetown to London City flights
St. John's to Gatwick flights
St. John's to Heathrow flights
St. George's to Heathrow flights
St. George's to Gatwick flights
Castries to Heathrow flights
Bridgetown to Manchester flights
Punta Cana to Gatwick flights
Castries to London City flights
Montego Bay to London City flights
Basseterre to Gatwick flights
Punta Cana to Heathrow flights
Luis Munoz Marin Intl to Edinburgh flights
Kingston to Stansted flights
Port of Spain to Stansted flights
Kingstown to Gatwick flights
Havana to Heathrow flights
Montego Bay to Birmingham flights
Nassau to Stansted flights

Top airline flying from Puerto Rico to London

Discover the top airline that operate flights from Puerto Rico to London. 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 12 April 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£529Average£810FlexibilityNo 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 Puerto Rico to London?

Deals for Puerto Rico to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London from Puerto Rico.

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

Certainly. Search results for flights to London from Puerto Rico shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Not ready to book yet? You can track prices for flights from Puerto Rico to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

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