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Cheap flights from London to San Juan Luis Munoz Marin Intl Airport from £280

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SJU
23 Jul — 30 Jul1
1 adult

Cheapflights Tip: The best prices from London to San Juan Luis Munoz Marin Intl are usually found in September or November, booked 89 days in advance, depart on a Monday or Tuesday and return on a Wednesday

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 18 July 2025.

Round-trip from

£471

One-way from

£280

Popular in

July

Cheapest in

September

Average price

£953
30/8-6/9
  • 30/8-6/9
  • 2 total stops
  • 28h 38m total
  • London to San Juan
Search Deals
9/9
  • 9/9
  • 1 total stop
  • 15h 44m total
  • London to San Juan
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£89 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from London to Luis Munoz Marin Intl

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 18 July 2025.

Sat 30/814:00LGW - SJU
1 stop14h 57mMultiple Airlines
Sat 6/915:19SJU - LGW
1 stop13h 41mMultiple Airlines
Deal found 16/7£471
Tue 9/908:25LHR - SJU
1 stop32h 42mJetBlue
Sun 21/919:50SJU - LHR
1 stop29h 40mJetBlue
Deal found 17/7£480
Sat 20/912:10LGW - SJU
1 stop32h 55mIcelandair
Thu 25/913:00SJU - LGW
1 stop15h 35mIcelandair
Deal found 16/7£484
Tue 9/908:25LHR - SJU
1 stop32h 42mIcelandair
Wed 24/906:00SJU - LHR
1 stop22h 30mIcelandair
Deal found 17/7£487
Sat 30/811:40STN - SJU
3 stops32h 30mMultiple Airlines
Fri 5/901:59SJU - STN
3 stops27h 41mMultiple Airlines
Deal found 16/7£581
Thu 6/1110:40LGW - SJU
2 stops21h 09mTAP AIR PORTUGAL
Sat 15/1112:10SJU - LGW
2 stops17h 40mTAP AIR PORTUGAL
Deal found 16/7£601
Tue 9/911:20LHR - SJU
2 stops29h 47mTAP AIR PORTUGAL
Wed 24/912:50SJU - LHR
2 stops21h 45mTAP AIR PORTUGAL
Deal found 17/7£603
Tue 23/912:10LHR - SJU
3 stops31h 01mMultiple Airlines
Sat 27/901:59SJU - LHR
3 stops26h 36mMultiple Airlines
Deal found 16/7£617
Mon 1/922:05LHR - SJU
1 stop18h 50mAvianca
Mon 8/918:15SJU - LHR
1 stop16h 20mAvianca
Deal found 18/7£636
Fri 8/808:55LCY - SJU
3 stops30h 53mMultiple Airlines
Sat 16/802:11SJU - LCY
3 stops33h 14mMultiple Airlines
Deal found 18/7£762
Mon 1/919:00LCY - SJU
2 stops33h 51mVirgin Atlantic
Tue 9/907:00SJU - LCY
2 stops44h 10mVirgin Atlantic
Deal found 16/7£833
Tue 23/919:10LCY - SJU
2 stops33h 47mLufthansa
Sun 28/913:30SJU - LCY
2 stops24h 05mLufthansa
Deal found 16/7£882

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 18 July 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

LGW - SJU

LGWSJU

London Gatwick

Sat 30/8

14:00-23:57

1 stop14h 57m

San Juan Luis Munoz Marin Intl

Sat 6/9

15:19-10:00

1 stop13h 41m

£471

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 9/9

08:25-12:07

1 stop32h 42m

San Juan Luis Munoz Marin Intl

Sun 21/9

19:50-06:30

1 stop29h 40m

£480

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sat 20/9

12:10-16:05

1 stop32h 55m

San Juan Luis Munoz Marin Intl

Thu 25/9

13:00-09:35

1 stop15h 35m

£484

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 9/9

08:25-12:07

1 stop32h 42m

San Juan Luis Munoz Marin Intl

Wed 24/9

06:00-09:30

1 stop22h 30m

£487

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Sat 30/8

11:40-15:10

3 stops32h 30m

San Juan Luis Munoz Marin Intl

Fri 5/9

01:59-10:40

3 stops27h 41m

£581

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 6/11

10:40-03:49

2 stops21h 09m

San Juan Luis Munoz Marin Intl

Sat 15/11

12:10-09:50

2 stops17h 40m

£601

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 9/9

11:20-12:07

2 stops29h 47m

San Juan Luis Munoz Marin Intl

Wed 24/9

12:50-15:35

2 stops21h 45m

£603

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 23/9

12:10-14:11

3 stops31h 01m

San Juan Luis Munoz Marin Intl

Sat 27/9

01:59-09:35

3 stops26h 36m

£617

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 1/9

22:05-11:55

1 stop18h 50m

San Juan Luis Munoz Marin Intl

Mon 8/9

18:15-15:35

1 stop16h 20m

£636

LondonSan Juan

LCY - SJU

LCYSJU

London City

Fri 8/8

08:55-10:48

3 stops30h 53m

San Juan Luis Munoz Marin Intl

Sat 16/8

02:11-16:25

3 stops33h 14m

£762

Flights are sorted by cheapest return flights first.

Deals found on 17/7

Showing 1-10 of 34 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 11 July 2025.

The best time to book flights from London to San Juan Luis Munoz Marin Intl Airport is 89 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, April is the cheapest month in which you can book a flight from London to San Juan Luis Munoz Marin Intl Airport (average of £631). Flying from London to San Juan Luis Munoz Marin Intl Airport in July is currently the most expensive (average of £1,027). 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 18 July 2025.

It’s optimal to fly from London to San Juan Luis Munoz Marin Intl Airport in the morning. By choosing this option you can save up to 29% on the cost of your flight, compared to a flight in the afternoon.

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

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 18 July 2025.
Read reviews from past customers who have flown with Delta, United Airlines, andVirgin Atlantic 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.
Delta
8.0
Very Good
7,958 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very Good
7,958 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,865 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
JetBlue
7.3
Good
2,907 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Turkish Airlines
7.3
Good
3,906 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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.

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

    According to our current data, JetBlue (£480), Icelandair (£484), and TAP AIR PORTUGAL (£601) offers the cheapest pricing from London to San Juan Luis Munoz Marin Intl Airport. JetBlue is priced at 28% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from London to San Juan Luis Munoz Marin Intl Airport one-way?

    The cheapet airlines for a one-way flight from London to San Juan Luis Munoz Marin Intl Airport are JetBlue (£351), Icelandair (£358), and Avianca (£530).

  • 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 £26 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, April is the cheapest month in which you can book a flight from London to San Juan Luis Munoz Marin Intl Airport (average of £631). Flying from London to San Juan Luis Munoz Marin Intl Airport in July is currently the most expensive (average of £1,027). 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

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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 18 July 2025.
Finnair flights from London to San Juan Luis Munoz Marin Intl
JetBlue 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 18 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£344Average£917FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£419Average£608FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IcelandairCheapest£425Average£644FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
FinnairCheapest£464Average£565FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£513Average£807FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£538Average£700FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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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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