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Cheap flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport from £195

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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — LHR
3 ספט' — 10 ספט'1
1 adult

Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl to London Heathrow are usually found in October or September, booked 69 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from Luis Munoz Marin Intl to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Luis Munoz Marin Intl (SJU) to Heathrow (LHR). 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 29 אוגוסט 2025.

Round-trip from

£470

One-way from

£195

Popular in

June

Cheapest in

October

Average price

£597
United Airlines
  • United Airlines
  • 11/10-28/10
  • 3 total stops
  • 44h 36m total
  • San Juan to London
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4/10
  • 4/10
  • 2 total stops
  • 43h 34m total
  • San Juan to London
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£133 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Find flight deals from Luis Munoz Marin Intl to Heathrow

Cheapest flights from Luis Munoz Marin Intl to Heathrow
Explore the most affordable flight options available from Luis Munoz Marin Intl to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 אוגוסט 2025.

ש' 11/1001:05SJU - LHR
1 stop23h 50mUnited Airlines
ג' 28/1006:50LHR - SJU
2 stops20h 46mUnited Airlines
Deal found 28/8£470
ב' 22/914:25SJU - LHR
1 stop14h 05mJetBlue
ד' 8/1008:15LHR - SJU
1 stop13h 40mJetBlue
Deal found 26/8£480
ש' 11/1003:03SJU - LHR
1 stop12h 42mJetBlue
א' 19/1008:15LHR - SJU
1 stop13h 42mJetBlue
Deal found 28/8£483
ב' 22/914:55SJU - LHR
1 stop15h 40mUnited Airlines
ד' 8/1006:50LHR - SJU
2 stops22h 07mUnited Airlines
Deal found 27/8£485
ב' 22/915:55SJU - LHR
1 stop13h 40mAmerican Airlines
ד' 8/1006:15LHR - SJU
1 stop17h 15mAmerican Airlines
Deal found 27/8£492
ד' 29/1016:45SJU - LHR
1 stop12h 30mAmerican Airlines
ג' 4/1106:05LHR - SJU
1 stop17h 50mAmerican Airlines
Deal found 27/8£493
א' 9/1118:42SJU - LHR
1 stop13h 23mIberia
ה' 20/1111:15LHR - SJU
1 stop16h 41mIberia
Deal found 27/8£505
ג' 4/1102:05SJU - LHR
1 stop14h 30mUnited Airlines
ג' 11/1108:30LHR - SJU
2 stops17h 52mUnited Airlines
Deal found 29/8£507
ד' 17/921:26SJU - LHR
2 stops33h 29mMultiple Airlines
ג' 23/913:05LHR - SJU
2 stops17h 53mMultiple Airlines
Deal found 28/8£508
ג' 2/1209:30SJU - LHR
1 stop20h 00mJetBlue
ג' 9/1207:25LHR - SJU
1 stop14h 55mJetBlue
Deal found 27/8£509
ד' 1/1013:29SJU - LHR
1 stop15h 01mJetBlue
ש' 11/1011:55LHR - SJU
1 stop17h 52mJetBlue
Deal found 28/8£513

Cheapflights Fare Finder

 
Customise your flight search to find flights from Luis Munoz Marin Intl to Heathrow 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 29 אוגוסט 2025.
Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport that are best for you.

Fly from

Luis Munoz Marin Intl

Fly to

Heathrow

Route

Depart

Return

Price

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

ש' 11/10

01:05-05:55

1 stop23h 50m

London Heathrow

ג' 28/10

06:50-23:36

2 stops20h 46m

£470

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

ש' 11/10

03:03-20:45

1 stop12h 42m

London Heathrow

א' 19/10

08:15-16:57

1 stop13h 42m

£483

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

ב' 22/9

15:55-10:35

1 stop13h 40m

London Heathrow

ד' 8/10

06:15-18:30

1 stop17h 15m

£492

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

ד' 29/10

17:00-12:05

1 stop15h 05m

London Heathrow

ג' 4/11

10:45-19:55

1 stop13h 10m

£493

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

ד' 18/2

16:45-09:15

1 stop12h 30m

London Heathrow

ה' 26/2

07:30-16:40

1 stop13h 10m

£493

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

ד' 29/10

16:45-09:15

1 stop12h 30m

London Heathrow

ג' 4/11

06:05-19:55

1 stop17h 50m

£493

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

ד' 29/10

17:00-12:05

1 stop15h 05m

London Heathrow

ו' 7/11

06:15-16:35

1 stop14h 20m

£493

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

ש' 4/10

21:26-22:00

2 stops43h 34m

£195

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

א' 5/10

21:26-22:00

2 stops43h 34m

£201

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

ה' 16/10

21:06-10:20

2 stops32h 14m

£208

Flights are sorted by cheapest return flights first.

Deals found on 28/8

Showing 1-10 of 15 results
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Best time to book a flight from Luis Munoz Marin Intl to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Luis Munoz Marin Intl 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 San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport

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

Use this chart to determine the optimal time to book a return flight from Luis Munoz Marin Intl to Heathrow. Price data was last updated on 22 August 2025.

The price you pay for your flight from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 69 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 San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport (average of £112). Flying from San Juan Luis Munoz Marin Intl Airport 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 SJU to LHR?

Find hourly flight availability from Luis Munoz Marin Intl 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 29 אוגוסט 2025.

It’s optimal to fly from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport in the morning. By choosing this option you can save up to 49% on the cost of your flight, compared to a flight in the afternoon.

Related info for your journey

Find useful and relevant information for your journey from Luis Munoz Marin Intl to Heathrow. 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 San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport?

    For as low as £483, United Airlines can have you in London Heathrow Airport from San Juan Luis Munoz Marin Intl Airport in 12h 42m. Airlines will cover a distance of 4179 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport (average of £112). Flying from San Juan Luis Munoz Marin Intl Airport 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

Travelling to a place near London Heathrow Airport?

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Gatwick
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Deal
Wembley
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Crawley
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Alternative routes for Luis Munoz Marin Intl to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Luis Munoz Marin Intl to Gatwick flights

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Deals for Luis Munoz Marin Intl to Heathrow 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 Luis Munoz Marin Intl to Heathrow?

Millions of users choose and trust Cheapflights to book the best flight deals from Luis Munoz Marin Intl to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Luis Munoz Marin Intl to Heathrow with no change fees?

Certainly. Search results for flights to Heathrow from Luis Munoz Marin Intl 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 Luis Munoz Marin Intl to Heathrow become cheaper?

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