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Cheap flights from the United Kingdom to San Juan Luis Munoz Marin Intl Airport from £291

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 19/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SJU
31 Aug — 7 Sep1
1 adult

Cheap flight deals from United Kingdom to Luis Munoz Marin Intl

Keep the following information in mind while searching for United Kingdom to Luis Munoz Marin Intl flight deals. Data was last updated 26 August 2025.

Round-trip from

£490

One-way from

£291

Popular in

December

Cheapest in

September

Average price

£774
6/11-10/11
  • 6/11-10/11
  • 2 total stops
  • 33h 54m total
  • United Kingdom to San Juan
Search Deals
19/11
  • 19/11
  • 2 total stops
  • 29h 00m total
  • United Kingdom to San Juan
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£9 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 August 2025
Search Deals

Find flight deals from United Kingdom to Luis Munoz Marin Intl

Cheapest flights from United Kingdom to Luis Munoz Marin Intl
Explore the most affordable flight options available from United Kingdom to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 August 2025.

Thu 6/1114:00LGW - SJU
1 stop16h 54mMultiple Airlines
Mon 10/1109:00SJU - LGW
1 stop17h 00mMultiple Airlines
Deal found 25/8£490
Thu 9/1014:00LGW - SJU
1 stop16h 44mMultiple Airlines
Wed 15/1002:49SJU - LGW
1 stop26h 11mMultiple Airlines
Deal found 25/8£495
Wed 1/1014:00LGW - SJU
1 stop29h 11mMultiple Airlines
Tue 7/1002:49SJU - LGW
1 stop26h 11mMultiple Airlines
Deal found 24/8£499
Tue 9/908:15LHR - SJU
1 stop19h 17mIcelandair
Sun 21/906:00SJU - LHR
2 stops19h 30mIcelandair
Deal found 24/8£500
Thu 4/1214:00LGW - SJU
1 stop16h 50mMultiple Airlines
Fri 12/1203:55SJU - LGW
1 stop26h 10mMultiple Airlines
Deal found 24/8£500
Wed 24/914:00LGW - SJU
1 stop17h 34mMultiple Airlines
Tue 30/903:39SJU - LGW
1 stop25h 21mMultiple Airlines
Deal found 25/8£501
Wed 8/1008:15LHR - SJU
1 stop18h 09mJetBlue
Wed 15/1013:25SJU - LHR
1 stop15h 05mJetBlue
Deal found 24/8£501
Thu 4/1207:25LHR - SJU
1 stop18h 24mJetBlue
Sat 13/1208:00SJU - LHR
1 stop21h 30mJetBlue
Deal found 24/8£503
Tue 9/908:15LHR - SJU
1 stop19h 17mIcelandair
Wed 24/906:00SJU - LHR
2 stops19h 30mIcelandair
Deal found 24/8£504
Fri 14/1107:25LHR - SJU
1 stop24h 23mJetBlue
Sun 23/1121:25SJU - LHR
1 stop29h 30mJetBlue
Deal found 24/8£510
Wed 3/911:55LHR - SJU
1 stop14h 29mIcelandair
Thu 18/918:05SJU - LHR
1 stop21h 40mIcelandair
Deal found 24/8£514
Wed 22/1008:15LHR - SJU
1 stop13h 40mJetBlue
Sun 2/1108:05SJU - LHR
1 stop32h 40mJetBlue
Deal found 24/8£517

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom 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 26 August 2025.
Use the filters below to find and compare flights from the United Kingdom to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

United Kingdom

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 6/11

14:00-02:54

1 stop16h 54m

San Juan Luis Munoz Marin Intl

Mon 10/11

09:00-06:00

1 stop17h 00m

£490

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 9/10

14:00-01:44

1 stop16h 44m

San Juan Luis Munoz Marin Intl

Wed 15/10

02:49-10:00

1 stop26h 11m

£495

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 20/2

07:25-23:47

1 stop20h 22m

San Juan Luis Munoz Marin Intl

Sun 1/3

06:00-20:45

1 stop34h 45m

£499

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 1/10

14:00-14:11

1 stop29h 11m

San Juan Luis Munoz Marin Intl

Tue 7/10

02:49-10:00

1 stop26h 11m

£499

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 9/9

08:15-22:32

1 stop19h 17m

San Juan Luis Munoz Marin Intl

Sun 21/9

06:00-06:30

2 stops19h 30m

£500

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 31/1

08:05-23:55

1 stop19h 50m

San Juan Luis Munoz Marin Intl

Tue 10/2

11:15-09:30

1 stop18h 15m

£500

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 4/12

14:00-02:50

1 stop16h 50m

San Juan Luis Munoz Marin Intl

Fri 12/12

03:55-10:05

1 stop26h 10m

£500

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 8/10

08:15-21:24

1 stop18h 09m

San Juan Luis Munoz Marin Intl

Wed 15/10

13:25-09:30

1 stop15h 05m

£501

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 24/9

14:00-02:34

1 stop17h 34m

San Juan Luis Munoz Marin Intl

Tue 30/9

03:39-10:00

1 stop25h 21m

£501

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 4/12

07:25-21:49

1 stop18h 24m

San Juan Luis Munoz Marin Intl

Sat 13/12

08:00-09:30

1 stop21h 30m

£503

Flights are sorted by cheapest return flights first.

Deals found on 24/8

Showing 1-10 of 60 results
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Best time to book a flight from United Kingdom to Luis Munoz Marin Intl

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

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

Currently, April is the cheapest month in which you can book a flight from United Kingdom to San Juan Luis Munoz Marin Intl Airport (average of £631). Flying from United Kingdom 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 GB to SJU?

Find hourly flight availability from United Kingdom 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 26 August 2025.

When flying from United Kingdom to San Juan Luis Munoz Marin Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 26 August 2025.
Read reviews from past customers who have flown with Finnair, JetBlue, andIcelandair from the United Kingdom 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
1,320 reviews
Check prices

Comfort

7.5

Food

6.7

Overall

7.6

Entertainment

6.9

Crew

8.1

Boarding

7.6

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
Finnair
7.6
Good
1,320 reviews
Finnair
7.6
Good
1,320 reviews
Check prices

Comfort

7.5

Food

6.7

Overall

7.6

Entertainment

6.9

Crew

8.1

Boarding

7.6

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
JetBlue
7.2
Good
2,918 reviews
Finnair
7.6
Good
1,320 reviews
Check prices

Comfort

7.5

Food

6.7

Overall

7.6

Entertainment

6.9

Crew

8.1

Boarding

7.6

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
Icelandair
7.0
Good
533 reviews
Finnair
7.6
Good
1,320 reviews
Check prices

Comfort

7.5

Food

6.7

Overall

7.6

Entertainment

6.9

Crew

8.1

Boarding

7.6

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
Iberia
7.0
Good
2,891 reviews
Finnair
7.6
Good
1,320 reviews
Check prices

Comfort

7.5

Food

6.7

Overall

7.6

Entertainment

6.9

Crew

8.1

Boarding

7.6

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
British Airways
6.7
Okay
7,309 reviews
Finnair
7.6
Good
1,320 reviews
Check prices

Comfort

7.5

Food

6.7

Overall

7.6

Entertainment

6.9

Crew

8.1

Boarding

7.6

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(

Related info for your journey

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

    Departing from United Kingdom to San Juan Luis Munoz Marin Intl Airport will take you 19h 17m. United Kingdom and San Juan Luis Munoz Marin Intl Airport are separated by 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 are the most popular routes from United Kingdom to San Juan Luis Munoz Marin Intl Airport?

    While some choose either London Gatwick - San Juan Luis Munoz Marin Intl or London City - San Juan Luis Munoz Marin Intl, London Heathrow - San Juan Luis Munoz Marin Intl is the most popular route from United Kingdom to San Juan Luis Munoz Marin Intl Airport.

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from United Kingdom to San Juan Luis Munoz Marin Intl Airport (average of £631). Flying from United Kingdom 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

Browse thousands of different options on Cheapflights for your next trip

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Top 9 airlines flying from United Kingdom to Luis Munoz Marin Intl

Discover the top 9 airlines that operate flights from United Kingdom 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 26 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£342Average£1,075FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£422Average£719FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£452Average£594FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
FinnairCheapest£453Average£603FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£509Average£841FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£554Average£904FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£661Average£972FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
DeltaCheapest£767Average£1,084FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
KLMCheapest£862Average£952FlexibilityNo cancel feeOn-time75%
Search KLM flights

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How does Cheapflights help users find flights from United Kingdom to Luis Munoz Marin Intl?

Deals for United Kingdom to Luis Munoz Marin Intl 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 United Kingdom to Luis Munoz Marin Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from United Kingdom to Luis Munoz Marin Intl.

Can Cheapflights find flights from United Kingdom to Luis Munoz Marin Intl with no change fees?

Yes, we can. To see specific flights from United Kingdom to Luis Munoz Marin Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from United Kingdom to Luis Munoz Marin Intl become cheaper?

Yes! Start tracking prices for United Kingdom to Luis Munoz Marin Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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