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Cheap flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport from £199

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — LHR
25 May — 1 Jun1
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 25 April 2026.

Sat 25/414:45
SJU
-
LHR
1 stop15h 35m
Virgin Atlantic
Fri 8/511:15
LHR
-
SJU
1 stop16h 02m
Virgin Atlantic
Deal found 21/4£499
Thu 7/507:05
SJU
-
LHR
1 stop22h 15m
Virgin Atlantic
Sun 24/515:15
LHR
-
SJU
1 stop34h 15m
Virgin Atlantic
Deal found 23/4£501
Sun 3/513:25
SJU
-
LHR
1 stop14h 25m
Air France
Sun 17/506:15
LHR
-
SJU
2 stops19h 15m
Air France
Deal found 22/4£514
Sun 3/517:34
SJU
-
LHR
1 stop14h 41m
KLM
Sun 17/512:50
LHR
-
SJU
1 stop15h 45m
KLM
Deal found 22/4£519
Fri 24/417:34
SJU
-
LHR
1 stop14h 41m
Virgin Atlantic
Sun 10/509:20
LHR
-
SJU
1 stop16h 10m
Virgin Atlantic
Deal found 22/4£525
Fri 1/517:42
SJU
-
LHR
1 stop15h 53m
Virgin Atlantic
Thu 7/511:15
LHR
-
SJU
1 stop14h 15m
Virgin Atlantic
Deal found 20/4£525
Sat 23/507:05
SJU
-
LHR
1 stop18h 40m
Virgin Atlantic
Fri 21/816:20
LHR
-
SJU
1 stop36h 39m
Virgin Atlantic
Deal found 21/4£527
Wed 30/1213:10
SJU
-
LHR
1 stop15h 50m
KLM
Fri 8/112:30
LHR
-
SJU
1 stop15h 20m
KLM
Deal found 22/4£528
Fri 16/1013:06
SJU
-
LHR
1 stop16h 14m
KLM
Sat 31/1010:45
LHR
-
SJU
1 stop29h 51m
KLM
Deal found 20/4£528
Thu 23/417:34
SJU
-
LHR
1 stop14h 41m
Delta
Sat 9/506:30
LHR
-
SJU
2 stops22h 05m
Delta
Deal found 20/4£530
Mon 27/413:25
SJU
-
LHR
1 stop15h 55m
Delta
Mon 4/508:40
LHR
-
SJU
2 stops20h 19m
Delta
Deal found 20/4£531

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 25 April 2026.

Round-trip from

£501

One-way from

£199

Popular in

July

Cheapest in

September

Average price

£572
Virgin Atlantic
  • Virgin Atlantic
  • 7/5-24/5
  • 2 total stops
  • 56h 30m total
  • San Juan to London
Search Deals
Virgin Atlantic
  • Virgin Atlantic
  • 5/10
  • 1 total stop
  • 15h 48m total
  • San Juan to London
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£89 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 25 April 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

Fri 9/10

07:30-07:10

2 stops18h 40m

London Heathrow

Mon 19/10

18:35-13:21

2 stops23h 46m

£538
Fastest return journey

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 22/10

07:30-07:10

2 stops18h 40m

London Heathrow

Sat 31/10

08:55-21:59

2 stops17h 04m

£538

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 7/5

06:15-06:20

2 stops19h 05m

London Heathrow

Sun 24/5

16:50-12:49

1 stop24h 59m

£614

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 15/5

18:00-14:35

1 stop15h 35m

London Heathrow

Sun 31/5

20:05-16:33

2 stops25h 28m

£619

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 10/10

14:55-07:45

1 stop35h 50m

London Heathrow

Wed 14/10

09:30-23:50

1 stop19h 20m

£631

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 12/8

07:30-06:20

2 stops17h 50m

London Heathrow

Mon 17/8

18:55-12:16

1 stop22h 21m

£642

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 1/8

06:00-06:20

2 stops19h 20m

London Heathrow

Wed 12/8

20:05-12:08

1 stop21h 03m

£642
Cheapest one-way

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 5/10

13:25-10:40

2 stops16h 15m

£227

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 3/5

17:34-14:35

2 stops16h 01m

£279

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 9/8

07:20-05:55

2 stops17h 35m

£312

Flights are sorted by cheapest return flights first.

Deals found on 24/4

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

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 £458). Flying from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport in June is currently the most expensive (average of £857). 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 25 April 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
7.2
Good
2,955 reviews
Check prices

Boarding

7.3

Comfort

7.5

Entertainment

7.2

Overall

7.2

Crew

7.9

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Samuel,Nov 2025

PBI - HPN

Incessant announcements hawking the JB Card, other items to purchase, seat back tables up 45 minutes before we landed....more announcements....Give your customer a break!
JetBlue
7.2
Good
2,955 reviews
JetBlue
7.2
Good
2,955 reviews
Check prices

Boarding

7.3

Comfort

7.5

Entertainment

7.2

Overall

7.2

Crew

7.9

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Samuel,Nov 2025

PBI - HPN

Incessant announcements hawking the JB Card, other items to purchase, seat back tables up 45 minutes before we landed....more announcements....Give your customer a break!

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 £538, Delta can have you in London Heathrow Airport from San Juan Luis Munoz Marin Intl Airport in 18h 40m. Airlines will cover a distance of 4179 mi.

  • 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 (£569), offers the cheapest pricing from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport. Users have found that JetBlue is 7% 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 £458). Flying from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport in June is currently the most expensive (average of £857). 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
Milton Keynes
Wembley
Croydon
Hounslow
Northampton
Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Watford
Kingston upon Thames
Romford
Eastbourne
Swindon
Ipswich
Southend-on-Sea
Guildford

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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 25 April 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£569Average£677FlexibilityNo 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?

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!

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