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Cheap flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport from £229

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 16/11. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — LHR
6 Jul — 13 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Luis Munoz Marin Intl to Heathrow

Enter your travel dates to find the best prices.

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 6 June 2026.

Tue 22/917:41
SJU
-
LHR
1 stop14h 34m
Virgin Atlantic
Fri 2/1011:15
LHR
-
SJU
1 stop15h 45m
Virgin Atlantic
Deal found 6/6£551
Thu 26/1114:41
SJU
-
LHR
1 stop13h 34m
Iberia
Thu 3/1206:15
LHR
-
SJU
1 stop17h 45m
Iberia
Deal found 2/6£563
Mon 16/1107:15
SJU
-
LHR
1 stop22h 05m
Virgin Atlantic
Fri 20/1110:10
LHR
-
SJU
1 stop17h 45m
Virgin Atlantic
Deal found 1/6£575
Thu 26/1114:05
SJU
-
LHR
1 stop12h 15m
Virgin Atlantic
Thu 3/1219:20
LHR
-
SJU
2 stops32h 00m
Virgin Atlantic
Deal found 5/6£575
Tue 29/1203:45
SJU
-
LHR
1 stop26h 30m
Virgin Atlantic
Fri 8/110:10
LHR
-
SJU
1 stop17h 45m
Virgin Atlantic
Deal found 5/6£588
Wed 23/915:56
SJU
-
LHR
2 stops37h 04m
United Airlines
Sat 26/906:50
LHR
-
SJU
2 stops22h 00m
United Airlines
Deal found 2/6£594
Thu 17/914:20
SJU
-
LHR
1 stop16h 15m
United Airlines
Sat 19/907:30
LHR
-
SJU
2 stops21h 20m
United Airlines
Deal found 3/6£601
Wed 11/1121:35
SJU
-
LHR
1 stop16h 40m
Iberia
Tue 24/1107:30
LHR
-
SJU
1 stop13h 10m
Iberia
Deal found 6/6£605

Find 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 6 June 2026.

Round-trip from

£551

One-way from

£229

Popular in

July

Cheapest in

September

Average price

£819
Virgin Atlantic
  • Virgin Atlantic
  • 22/9-2/10
  • 2 total stops
  • 30h 19m total
  • San Juan to London
Search Deals
United Airlines
  • United Airlines
  • 16/11
  • 2 total stops
  • 23h 30m total
  • San Juan to London
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£90 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 6 June 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest return flight

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 8/11

07:00-08:05

1 stop21h 05m

London Heathrow

Fri 13/11

08:40-23:55

2 stops19h 15m

£607

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 2/11

14:06-08:05

1 stop13h 59m

London Heathrow

Sat 7/11

08:40-22:59

2 stops18h 19m

£647

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 6/11

14:06-10:15

1 stop16h 09m

London Heathrow

Wed 11/11

12:30-23:13

1 stop14h 43m

£662

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 14/8

07:00-07:55

1 stop19h 55m

London Heathrow

Fri 28/8

09:30-23:50

2 stops19h 20m

£678

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 11/9

14:20-11:35

1 stop16h 15m

London Heathrow

Sun 20/9

06:50-23:50

2 stops22h 00m

£680

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 4/9

16:55-10:40

1 stop12h 45m

London Heathrow

Sat 12/9

06:50-13:45

2 stops35h 55m

£680

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 19/8

14:59-13:15

1 stop17h 16m

London Heathrow

Sun 23/8

09:20-22:29

1 stop18h 09m

£692
Fastest return journey

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 6/11

15:31-09:00

1 stop13h 29m

London Heathrow

Mon 9/11

12:30-23:13

1 stop14h 43m

£695

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 29/8

16:55-10:40

1 stop12h 45m

London Heathrow

Tue 8/9

07:30-23:50

2 stops21h 20m

£701

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 9/10

12:46-11:20

1 stop17h 34m

London Heathrow

Sat 17/10

10:45-23:56

2 stops18h 11m

£705

Flights are sorted by cheapest return flights first.

Deals found on 1/6

Showing 1-10 of 22 resultsSorted by cheapest first
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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?

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 68 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, September 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 £461). Flying from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport in July is currently the most expensive (average of £822). 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.

How much does it cost for a return flight from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 6 June 2026.
Check out reviews from past customers who have flown with JetBlue from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
JetBlue
7.1
Good
2,981 reviews
Check prices

Food

6.6

Comfort

7.5

Crew

7.9

Overall

7.1

Entertainment

7.2

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

Dave,Jun 2026

MCO - ROC

When i book 2 tickets they should keep them together even though I can't choose a seat
JetBlue
7.1
Good
2,981 reviews
JetBlue
7.1
Good
2,981 reviews
Check prices

Food

6.6

Comfort

7.5

Crew

7.9

Overall

7.1

Entertainment

7.2

Boarding

7.3

Reviews

1 / 20
10.0
Excellent

Dave,Jun 2026

MCO - ROC

When i book 2 tickets they should keep them together even though I can't choose a seat

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 £647, Delta can have you in London Heathrow Airport from San Juan Luis Munoz Marin Intl Airport in 13h 59m. 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.

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

    According to our current data, JetBlue (£573), offers the cheapest pricing from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport. Users have found that JetBlue is 8% cheaper than the other options available to this destination.

  • 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, September 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 £461). Flying from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport in July is currently the most expensive (average of £822). 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?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Wembley
Luton
Gatwick
Croydon
Ilford
Slough
Northampton
Hayes
Brentford
Colchester
Kingston upon Thames
Eastbourne
Watford
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Ipswich
Romford
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Poole

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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

Top airline flying from Luis Munoz Marin Intl to Heathrow

Discover the top airline that operate flights from Luis Munoz Marin Intl to Heathrow. 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 6 June 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£573Average£682FlexibilityNo cancel feeOn-time62%
Search JetBlue 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 Luis Munoz Marin Intl to Heathrow?

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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