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Luis Munoz Marin Intl

$502+ Cheap flights from Heathrow (LHR) to Luis Munoz Marin Intl (SJU)

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SJU
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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Cheapflights Tip: The best prices from London Heathrow to San Juan Luis Munoz Marin Intl are usually found in September or February, booked 86 days in advance, depart on a Tuesday or Friday and return on a Wednesday

Cheap flight deals from Heathrow to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Luis Munoz Marin Intl (SJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$696
(JetBlue)

One-way from

$502
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$771
Provider with most accurate pricing for London Heathrow-San Juan Luis Munoz Marin Intl flight deals.
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Provider most trusted by Cheapflights users for London Heathrow-San Juan Luis Munoz Marin Intl flights.
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From London Heathrow to San Juan Luis Munoz Marin Intl
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One-way flight from London Heathrow to San Juan Luis Munoz Marin Intl
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Highest demand for flights based on searches. 6% potential increase in price ($57 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Heathrow to Luis Munoz Marin Intl

Cheapest flights from Heathrow to Luis Munoz Marin Intl
Explore the most affordable flight options available from Heathrow to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This JetBlue deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/228:05 amLHR - SJU
1 stop19h 43mJetBlue
Sun 11/301:59 amSJU - LHR
1 stop14h 46mJetBlue
Deal found 11/2$809
This JetBlue deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/88:05 amLHR - SJU
1 stop17h 49mJetBlue
Mon 11/172:33 pmSJU - LHR
1 stop12h 22mJetBlue
Deal found 10/31$827
This JetBlue deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/88:05 amLHR - SJU
1 stop17h 49mJetBlue
Sun 11/169:30 amSJU - LHR
1 stop20h 00mJetBlue
Deal found 10/31$867
This JetBlue deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/88:05 amLHR - SJU
1 stop17h 49mJetBlue
Sat 11/153:34 pmSJU - LHR
1 stop13h 56mJetBlue
Deal found 10/31$893
This JetBlue deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/288:05 amLHR - SJU
1 stop19h 43mJetBlue
Sat 11/291:50 amSJU - LHR
1 stop14h 55mJetBlue
Deal found 11/1$899
This Priceline deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1312:20 pmLHR - SJU
1 stop19h 28mJetBlue
Sun 12/146:10 amSJU - LHR
1 stop20h 45mJetBlue
Deal found 11/1$902
This Trip.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/69:20 amLHR - SJU
1 stop18h 39mJetBlue
Tue 11/119:30 amSJU - LHR
1 stop20h 00mJetBlue
Deal found 11/1$935
This Vueling Global deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vueling Global is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:50 pmLHR - SJU
2 stops25h 45mMultiple Airlines
Tue 12/236:10 pmSJU - LHR
2 stops19h 50mMultiple Airlines
Deal found 11/1$1,078
This JetBlue deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:25 amLHR - SJU
1 stop18h 44mJetBlue
Mon 1/510:38 amSJU - LHR
1 stop18h 52mJetBlue
Deal found 11/1$1,092
This Mytrip deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1312:15 pmLHR - SJU
2 stops26h 18mMultiple Airlines
Sun 12/146:59 pmSJU - LHR
3 stops35h 51mMultiple Airlines
Deal found 11/1$1,102

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Luis Munoz Marin Intl 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 2,558,603 searches. Data last updated November 3, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Heathrow

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 1/13

7:25 am-11:55 pm

1 stop20h 30m

San Juan Luis Munoz Marin Intl

Mon 1/26

2:00 pm-6:55 am

1 stop12h 55m

$696

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 3/6

12:20 pm-3:55 am

1 stop19h 35m

San Juan Luis Munoz Marin Intl

Sun 3/15

12:59 am-8:45 pm

1 stop15h 46m

$710

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 2/11

12:20 pm-12:58 am

1 stop16h 38m

San Juan Luis Munoz Marin Intl

Sat 2/14

8:52 pm-8:45 pm

1 stop19h 53m

$735

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 2/6

12:20 pm-11:55 pm

1 stop15h 35m

San Juan Luis Munoz Marin Intl

Sat 2/14

8:52 pm-8:45 pm

1 stop19h 53m

$750

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 2/16

8:05 am-7:24 pm

1 stop15h 19m

San Juan Luis Munoz Marin Intl

Wed 2/25

5:10 am-9:40 pm

1 stop12h 30m

$755

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 4/8

8:25 am-12:15 am

1 stop20h 50m

San Juan Luis Munoz Marin Intl

Fri 4/17

1:59 am-8:45 pm

1 stop13h 46m

$788

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 2/18

6:00 am-3:00 am

2 stops25h 00m

San Juan Luis Munoz Marin Intl

Wed 2/25

3:38 pm-5:30 pm

2 stops21h 52m

$848

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 1/26

1:40 pm-1:48 pm

2 stops28h 08m

San Juan Luis Munoz Marin Intl

Thu 2/5

11:15 am-5:30 pm

2 stops26h 15m

$849

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 2/16

6:00 am-3:00 am

2 stops49h 00m

San Juan Luis Munoz Marin Intl

Wed 2/25

6:00 am-10:40 pm

2 stops36h 40m

$889

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 2/17

1:40 pm-3:00 am

2 stops41h 20m

San Juan Luis Munoz Marin Intl

Wed 2/25

6:00 am-10:40 pm

2 stops36h 40m

$889

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 19 results
1
2

Compare providers for flights from Heathrow to Luis Munoz Marin Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to Luis Munoz Marin Intl in November.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London Heathrow Airport-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on London Heathrow Airport-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-San Juan Luis Munoz Marin Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Heathrow to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Heathrow with our price prediction graph.
Estimated round-trip 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 London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport

How far ahead should I book a flight from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Luis Munoz Marin Intl. Price data was last updated on October 31, 2025.

The price you pay for your flight from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 86 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport?

Currently, July is the cheapest month in which you can book a flight from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport (average of $568). Flying from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of $717). 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.

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated November 3, 2025.
Get a feel of what it's like to fly with JetBlue from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
JetBlue
7.2
Good
2,907 reviews

Boarding

7.4

Entertainment

7.3

Comfort

7.6

Crew

8.0

Food

6.7

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Guillermo,Nov 2024

JFK - SJO

Flight canceled, returned to NY and waiting for the new one. Thanks
JetBlue
7.2
Good
2,907 reviews
JetBlue
7.2
Good
2,907 reviews

Boarding

7.4

Entertainment

7.3

Comfort

7.6

Crew

8.0

Food

6.7

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Guillermo,Nov 2024

JFK - SJO

Flight canceled, returned to NY and waiting for the new one. Thanks

Related info for your journey

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

  • How long is the flight from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport?

    Departing from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport will take you 20h 30m. London Heathrow Airport and San Juan Luis Munoz Marin Intl Airport are separated by a distance of 4179 mi.

  • What is the cheapest airline to fly from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport round-trip?

    Our cheapest airline available from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport is JetBlue. Our recent data shows that you can find tickets from as low as $648 on this airline. JetBlue is priced at 24% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Heathrow to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Heathrow to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Luis Munoz Marin Intl?

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

  • Can I find deals for business class flights from Heathrow to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Heathrow to Luis Munoz Marin Intl 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 London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport?

    Currently, July is the cheapest month in which you can book a flight from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport (average of $568). Flying from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of $717). 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

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Dorado
Fajardo
Rio Grande
Luquillo
Humacao

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Heathrow to Luis Munoz Marin Intl

Discover the top airline that operate flights from Heathrow to Luis Munoz Marin Intl. 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 2,558,603 searches. Data last updated November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$648Average$834FlexibilityNo cancel feeOn-time62%

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