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Cheap flights from London to San Juan Luis Munoz Marin Intl Airport from £306

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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SJU
14 May — 21 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Luis Munoz Marin Intl

Enter your travel dates to find the best prices.

Cheapest flights from London to Luis Munoz Marin Intl
Explore the most affordable flight options available from London to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 April 2026.

Mon 4/508:15
LHR
-
SJU
1 stop15h 15m
JetBlue
Mon 11/514:35
SJU
-
LHR
1 stop13h 55m
JetBlue
Deal found 11/4£569
Sat 3/1008:15
LHR
-
SJU
1 stop19h 27m
JetBlue
Sun 11/1006:12
SJU
-
LHR
1 stop19h 18m
JetBlue
Deal found 10/4£573
Fri 2/1011:55
LHR
-
SJU
1 stop15h 47m
JetBlue
Sun 11/1006:12
SJU
-
LHR
1 stop19h 18m
JetBlue
Deal found 13/4£575
Mon 2/1107:25
LHR
-
SJU
1 stop22h 18m
JetBlue
Sun 15/1107:00
SJU
-
LHR
1 stop19h 55m
JetBlue
Deal found 11/4£576
Tue 3/1109:20
LHR
-
SJU
1 stop19h 05m
JetBlue
Sat 7/1107:00
SJU
-
LHR
1 stop19h 55m
JetBlue
Deal found 14/4£577
Fri 1/508:40
LHR
-
SJU
1 stop18h 02m
JetBlue
Wed 6/508:00
SJU
-
LHR
1 stop17h 30m
JetBlue
Deal found 12/4£582
Sun 3/511:55
LHR
-
SJU
1 stop14h 05m
JetBlue
Sat 9/517:27
SJU
-
LHR
1 stop35h 03m
JetBlue
Deal found 10/4£582
Mon 11/508:15
LHR
-
SJU
1 stop17h 49m
JetBlue
Mon 18/522:05
SJU
-
LHR
1 stop17h 40m
JetBlue
Deal found 13/4£584
Sat 9/508:15
LHR
-
SJU
1 stop20h 55m
JetBlue
Wed 13/510:00
SJU
-
LHR
1 stop18h 30m
JetBlue
Deal found 9/4£599
Tue 2/612:20
LGW
-
SJU
1 stop28h 44m
JetBlue
Tue 9/613:27
SJU
-
LGW
1 stop15h 08m
JetBlue
Deal found 10/4£601
Tue 26/512:20
LGW
-
SJU
1 stop14h 22m
JetBlue
Tue 2/607:20
SJU
-
LGW
1 stop21h 15m
JetBlue
Deal found 11/4£604
Sat 23/512:20
LGW
-
SJU
1 stop14h 22m
JetBlue
Wed 27/507:20
SJU
-
LGW
1 stop21h 15m
JetBlue
Deal found 14/4£604

Find flight deals from London to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) 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 14 April 2026.

Round-trip from

£569

One-way from

£306

Popular in

July

Cheapest in

February

Average price

£748
JetBlue
  • JetBlue
  • 4/5-11/5
  • 2 total stops
  • 29h 10m total
  • London to San Juan
Search Deals
14/5
  • 14/5
  • 3 total stops
  • 43h 57m total
  • London to San Juan
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£67 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£22 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 London 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 858,174 searches. Data last updated 14 April 2026.
Use the filters below to find and compare flights from London to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 1/9

08:15-00:10

1 stop20h 55m

San Juan Luis Munoz Marin Intl

Sat 12/9

06:00-06:30

1 stop19h 30m

£669
Fastest return journey

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Tue 2/6

12:20-21:42

1 stop14h 22m

San Juan Luis Munoz Marin Intl

Sun 14/6

16:57-09:35

1 stop11h 38m

£672

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 25/5

12:20-21:42

1 stop14h 22m

San Juan Luis Munoz Marin Intl

Mon 1/6

15:25-09:35

1 stop13h 10m

£683

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sun 3/5

19:30-22:42

2 stops32h 12m

San Juan Luis Munoz Marin Intl

Wed 6/5

02:59-14:35

3 stops30h 36m

£710

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 4/5

06:50-00:19

3 stops46h 29m

San Juan Luis Munoz Marin Intl

Sun 10/5

00:59-08:25

2 stops26h 26m

£744

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 1/6

08:40-21:42

1 stop18h 02m

San Juan Luis Munoz Marin Intl

Sat 13/6

15:24-09:30

1 stop13h 06m

£778

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Wed 10/6

08:20-18:50

1 stop15h 30m

San Juan Luis Munoz Marin Intl

Fri 19/6

16:40-07:10

2 stops33h 30m

£780

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 1/9

11:20-09:50

2 stops27h 30m

San Juan Luis Munoz Marin Intl

Sat 12/9

06:00-10:20

2 stops23h 20m

£782

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 9/10

10:35-13:08

2 stops31h 33m

San Juan Luis Munoz Marin Intl

Mon 19/10

06:12-15:35

2 stops28h 23m

£797

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 11/8

06:00-21:32

2 stops20h 32m

San Juan Luis Munoz Marin Intl

Tue 18/8

16:30-18:50

2 stops21h 20m

£855

Flights are sorted by cheapest return flights first.

Deals found on 14/4

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from London to Luis Munoz Marin Intl

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

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

Use this chart to determine the optimal time to book a return flight from London to Luis Munoz Marin Intl. Price data was last updated on 10 April 2026.

The best time to book flights from London to San Juan Luis Munoz Marin Intl Airport is 44 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, July is the cheapest month in which you can book a flight from London to San Juan Luis Munoz Marin Intl Airport (average of £299). Flying from London to San Juan Luis Munoz Marin Intl Airport in May is currently the most expensive (average of £532). 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 London to San Juan Luis Munoz Marin Intl Airport?

What’s the top stopover airport for flights from London to San Juan Luis Munoz Marin Intl Airport?

Share of one-stop return flights from London to San Juan Luis Munoz Marin Intl Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.

New York (JFK) – chosen by Cheapflights users on 57% of one-stop itineraries from London to San Juan Luis Munoz Marin Intl Airport on Cheapflights.

What’s the cheapest stopover airport for flights from London to San Juan Luis Munoz Marin Intl Airport?

Average return fare for one-stop flights from London to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Boston (BOS) is the most affordable one-stop option, with an average return flight price of £668.

What’s the fastest stopover option from London to San Juan Luis Munoz Marin Intl Airport?

Shortest average travel time for one-stop one-way flights from London to San Juan Luis Munoz Marin Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Madrid (MAD) have the shortest average one-way travel time for one-stop routes: 13h 01m.

Which airport typically offers the quickest stopover for flights from London to San Juan Luis Munoz Marin Intl Airport?

Average stopover duration for one-stop one-way flights from London to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average stopover time of 1h 22m.

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 14 April 2026.
Read reviews from past customers who have flown with JetBlue,Icelandair, andIberia from London to San Juan Luis Munoz Marin Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
JetBlue
7.2
Good
2,936 reviews
Check prices

Boarding

7.3

Overall

7.2

Entertainment

7.2

Food

6.6

Crew

7.9

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

JACK,Sept 2025

JFK - MSY

I liked the professional services of the crew. Keep up the good work.
JetBlue
7.2
Good
2,936 reviews
JetBlue
7.2
Good
2,936 reviews
Check prices

Boarding

7.3

Overall

7.2

Entertainment

7.2

Food

6.6

Crew

7.9

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

JACK,Sept 2025

JFK - MSY

I liked the professional services of the crew. Keep up the good work.
Icelandair
7.0
Good
634 reviews
JetBlue
7.2
Good
2,936 reviews
Check prices

Boarding

7.3

Overall

7.2

Entertainment

7.2

Food

6.6

Crew

7.9

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

JACK,Sept 2025

JFK - MSY

I liked the professional services of the crew. Keep up the good work.
Iberia
7.0
Good
3,180 reviews
JetBlue
7.2
Good
2,936 reviews
Check prices

Boarding

7.3

Overall

7.2

Entertainment

7.2

Food

6.6

Crew

7.9

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

JACK,Sept 2025

JFK - MSY

I liked the professional services of the crew. Keep up the good work.
British Airways
6.7
Okay
7,885 reviews
JetBlue
7.2
Good
2,936 reviews
Check prices

Boarding

7.3

Overall

7.2

Entertainment

7.2

Food

6.6

Crew

7.9

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

JACK,Sept 2025

JFK - MSY

I liked the professional services of the crew. Keep up the good work.
Avianca
6.5
Okay
2,506 reviews
JetBlue
7.2
Good
2,936 reviews
Check prices

Boarding

7.3

Overall

7.2

Entertainment

7.2

Food

6.6

Crew

7.9

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

JACK,Sept 2025

JFK - MSY

I liked the professional services of the crew. Keep up the good work.

Related info for your journey

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

    Airlines like JetBlue, TAP AIR PORTUGAL, and British Airways fly from London to San Juan Luis Munoz Marin Intl Airport in about 14h 30m. The time it takes to get you to your destination can typically vary by up to 17h 03m. Airlines will cover a distance of 4201 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from London to San Juan Luis Munoz Marin Intl Airport round-trip?

    According to our current data, Virgin Atlantic (£329), JetBlue (£415), and Finnair (£484) offers the cheapest pricing from London to San Juan Luis Munoz Marin Intl Airport. Virgin Atlantic is priced at 51% lower than the current average price of a flight leaving 3 months from now.

  • What are the most popular routes from London to San Juan Luis Munoz Marin Intl Airport?

    The most popular flight routes from London to San Juan Luis Munoz Marin Intl Airport are London Heathrow - San Juan Luis Munoz Marin Intl, London Gatwick - San Juan Luis Munoz Marin Intl and London Stansted - San Juan Luis Munoz Marin Intl.

  • Where are the most common stopover locations when flying from London to San Juan Luis Munoz Marin Intl Airport?

    London to San Juan Luis Munoz Marin Intl Airport flights have a stopover in Madrid most of the time.

  • What are some popular things to do or see while on a stopover in Madrid?

    Madrid travellers tend to visit Spain Building, Puerta del Sol, and Plaza de Cibeles more than anywhere else. Spain Building, Puerta del Sol, and Plaza de Cibeles can be visited by traveling about 8.5 mi, 8.4 mi, and 7.9 mi respectively from Madrid Barajas. Those landing in Madrid looking to spend some time exploring during their stopover can hire a car for about £27 per day.

  • Where are the least popular stopover locations for London to San Juan Luis Munoz Marin Intl Airport flights?

    London to San Juan Luis Munoz Marin Intl Airport flights have a stopover in New York the least frequently.

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

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

  • How can I find direct flights from London 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 London to Luis Munoz Marin Intl.

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

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

    Currently, July is the cheapest month in which you can book a flight from London to San Juan Luis Munoz Marin Intl Airport (average of £299). Flying from London to San Juan Luis Munoz Marin Intl Airport in May is currently the most expensive (average of £532). 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 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
Bayamón

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Fly from London to Luis Munoz Marin Intl on these airlines

Choose from the following airlines for your flight from London to Luis Munoz Marin Intl. Flights are based on user searches made on Cheapflights and were last updated on 14 April 2026.
JetBlue flights from London to San Juan Luis Munoz Marin Intl
Virgin Atlantic flights from London to San Juan Luis Munoz Marin Intl
Finnair flights from London to San Juan Luis Munoz Marin Intl

Top 7 airlines flying from London to Luis Munoz Marin Intl

Discover the top 7 airlines that operate flights from London 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 858,174 searches. Data last updated 14 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£329Average£1,028FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£415Average£608FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
FinnairCheapest£484Average£797FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IcelandairCheapest£498Average£645FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
AviancaCheapest£532Average£589FlexibilityNo cancel feeOn-time71%
Search Avianca flights
British AirwaysCheapest£534Average£986FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£576Average£1,033FlexibilityNo cancel feeOn-time77%
Search Iberia 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 London to Luis Munoz Marin Intl?

Cheapflights makes it easy to find London to Luis Munoz Marin Intl flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from London to Luis Munoz Marin Intl?

Millions of users choose and trust Cheapflights to book the best flight deals from London to Luis Munoz Marin Intl 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 London to Luis Munoz Marin Intl with no change fees?

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

Yes, Cheapflights offers price alerts on London to Luis Munoz Marin Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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