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Cheap flights from London to San Juan Luis Munoz Marin Intl Airport from £320

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 15/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SJU
3 Dec — 10 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London to San Juan Luis Munoz Marin Intl are usually found in September or January, booked 56 days in advance, depart on a Monday or Tuesday and return on a Wednesday

Find flight deals from London to Luis Munoz Marin Intl

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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 3 November 2025.

Thu 4/1209:20LHR - SJU
1 stop31h 09mJetBlue
Sat 13/1219:50SJU - LHR
1 stop33h 40mJetBlue
Deal found 3/11£539
Thu 4/1214:00LGW - SJU
1 stop23h 55mMultiple Airlines
Sat 13/1207:10SJU - LGW
2 stops33h 30mMultiple Airlines
Deal found 3/11£546
Thu 4/1214:00LGW - SJU
1 stop24h 33mMultiple Airlines
Sun 14/1211:38SJU - LGW
1 stop18h 22mMultiple Airlines
Deal found 3/11£555
Wed 3/1213:00LGW - SJU
1 stop33h 23mMultiple Airlines
Tue 9/1209:15SJU - LGW
1 stop16h 45mMultiple Airlines
Deal found 3/11£556
Tue 18/1107:25LHR - SJU
2 stops17h 29mIcelandair
Thu 4/1212:30SJU - LHR
2 stops17h 00mIcelandair
Deal found 2/11£565
Wed 12/1106:40LHR - SJU
2 stops24h 53mMultiple Airlines
Thu 20/1107:11SJU - LHR
2 stops29h 49mMultiple Airlines
Deal found 3/11£567
Wed 12/1109:20LHR - SJU
1 stop31h 24mJetBlue
Thu 20/1105:23SJU - LHR
1 stop12h 17mJetBlue
Deal found 3/11£569
Mon 10/1108:05LHR - SJU
1 stop14h 15mIcelandair
Tue 18/1115:34SJU - LHR
1 stop13h 56mIcelandair
Deal found 2/11£572
Wed 3/1213:00LGW - SJU
1 stop33h 23mMultiple Airlines
Wed 10/1209:15SJU - LGW
1 stop16h 45mMultiple Airlines
Deal found 3/11£578
Thu 4/1209:20LHR - SJU
1 stop31h 09mIcelandair
Sun 14/1206:10SJU - LHR
2 stops23h 20mIcelandair
Deal found 3/11£581
Wed 3/1212:20LHR - SJU
2 stops30h 25mIcelandair
Wed 10/1205:09SJU - LHR
1 stop12h 31mIcelandair
Deal found 3/11£587
Wed 12/1109:20LHR - SJU
2 stops22h 28mIcelandair
Wed 19/1101:59SJU - LHR
1 stop15h 41mIcelandair
Deal found 3/11£594

Cheap 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 3 November 2025.

Round-trip from

£530

One-way from

£320

Popular in

July

Cheapest in

September

Average price

£593
JetBlue
  • JetBlue
  • 12/1-26/1
  • 2 total stops
  • 34h 35m total
  • London to San Juan
Search Deals
15/2
  • 15/2
  • 3 total stops
  • 45h 27m total
  • London to San Juan
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£71 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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 3 November 2025.
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

London

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 13/1

07:25-23:55

1 stop20h 30m

San Juan Luis Munoz Marin Intl

Mon 26/1

14:00-06:55

1 stop12h 55m

£530

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sat 17/1

14:00-09:54

1 stop23h 54m

San Juan Luis Munoz Marin Intl

Sun 25/1

17:27-14:40

2 stops17h 13m

£548

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 4/12

14:00-10:33

1 stop24h 33m

San Juan Luis Munoz Marin Intl

Sun 14/12

11:38-10:00

1 stop18h 22m

£555

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Tue 13/1

13:00-17:58

1 stop32h 58m

San Juan Luis Munoz Marin Intl

Sun 25/1

08:40-06:00

1 stop17h 20m

£555

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sun 18/1

07:45-23:55

1 stop20h 10m

San Juan Luis Munoz Marin Intl

Mon 26/1

14:45-09:30

1 stop14h 45m

£559

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 11/2

12:20-00:58

1 stop16h 38m

San Juan Luis Munoz Marin Intl

Sat 14/2

20:52-20:45

1 stop19h 53m

£559

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 6/2

12:20-23:55

1 stop15h 35m

San Juan Luis Munoz Marin Intl

Sat 14/2

20:52-20:45

1 stop19h 53m

£571

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 16/2

08:05-19:24

1 stop15h 19m

San Juan Luis Munoz Marin Intl

Wed 25/2

05:10-21:40

1 stop12h 30m

£575

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 3/12

13:00-18:23

1 stop33h 23m

San Juan Luis Munoz Marin Intl

Wed 10/12

09:15-06:00

1 stop16h 45m

£578

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 12/1

14:00-16:04

1 stop30h 04m

San Juan Luis Munoz Marin Intl

Sun 25/1

17:27-14:40

2 stops17h 13m

£598

Flights are sorted by cheapest return flights first.

Deals found on 2/11

Showing 1-10 of 60 results
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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 31 October 2025.

The best time to book flights from London to San Juan Luis Munoz Marin Intl Airport is 56 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 £432). Flying from London to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of £546). 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 LON to SJU?

Find hourly flight availability from London to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 November 2025.

It’s optimal to fly from London to San Juan Luis Munoz Marin Intl Airport in the evening. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight at midday.

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 50% 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 £617.

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 13m.

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 21m.

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 3 November 2025.
Read reviews from past customers who have flown with Finnair, JetBlue, andIcelandair 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.
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Crew

8.1

Overall

7.6

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,335 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Crew

8.1

Overall

7.6

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
JetBlue
7.2
Good
2,907 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Crew

8.1

Overall

7.6

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Icelandair
7.1
Good
568 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Crew

8.1

Overall

7.6

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Iberia
7.0
Good
3,006 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Crew

8.1

Overall

7.6

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
British Airways
6.7
Okay
7,494 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Crew

8.1

Overall

7.6

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

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, British Airways, and Iberia fly from London to San Juan Luis Munoz Marin Intl Airport in about 12h 45m. The time it takes to get you to your destination can typically vary by up to 8h 21m. 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 (£340), JetBlue (£453), and Finnair (£459) offers the cheapest pricing from London to San Juan Luis Munoz Marin Intl Airport. Virgin Atlantic is priced at 50% 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 City - 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 Mayor more than anywhere else. Spain Building, Puerta del Sol, and Plaza Mayor can be visited by traveling about 8.5 mi, 8.4 mi, and 8.6 mi respectively from Madrid Barajas. Those landing in Madrid looking to spend some time exploring during their stopover can hire a car for about £24 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 £432). Flying from London to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of £546). 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 3 November 2025.
JetBlue flights from London to San Juan Luis Munoz Marin Intl
Finnair flights from London to San Juan Luis Munoz Marin Intl
Virgin Atlantic flights from London to San Juan Luis Munoz Marin Intl

Top 6 airlines flying from London to Luis Munoz Marin Intl

Discover the top 6 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 3 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£340Average£1,148FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£453Average£615FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
FinnairCheapest£459Average£561FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IcelandairCheapest£484Average£655FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
IberiaCheapest£516Average£856FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£550Average£881FlexibilityNo cancel feeOn-time70%
Search British Airways 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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