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Cheap flights from London to San Juan Luis Munoz Marin Intl Airport from £351

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 27/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SJU
4 May — 11 May1
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 29 April 2025.

Round-trip from

£529

One-way from

£351

Popular in

July

Cheapest in

September

Average price

£695
Icelandair
  • Icelandair
  • 12/5-19/5
  • 3 total stops
  • 47h 51m total
  • London to San Juan
27/6
  • 27/6
  • 1 total stop
  • 29h 11m total
  • London to San Juan
Highest demand for flights based on searches. 15% potential increase in price (£93 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Average for round-trip flights in April 2025

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 29 April 2025.

Mon 12/508:15LHR - SJU
2 stops30h 21mIcelandair
Mon 19/508:00SJU - LHR
1 stop17h 30mIcelandair
Deal found 28/4£529
Mon 1/911:30LHR - SJU
1 stop12h 00mIberia
Sat 27/915:58SJU - LHR
1 stop13h 37mIberia
Deal found 28/4£549
Mon 30/612:10LGW - SJU
1 stop17h 39mIcelandair
Wed 9/707:20SJU - LGW
1 stop21h 15mIcelandair
Deal found 28/4£564
Mon 28/410:00LGW - SJU
1 stop27h 26mMultiple Airlines
Mon 5/514:40SJU - LGW
2 stops18h 55mMultiple Airlines
Deal found 27/4£567
Fri 13/608:15LHR - SJU
1 stop20h 44mJetBlue
Wed 25/606:00SJU - LHR
1 stop19h 30mJetBlue
Deal found 28/4£576
Fri 13/612:10LGW - SJU
1 stop17h 39mJetBlue
Fri 20/615:00SJU - LGW
1 stop13h 35mJetBlue
Deal found 28/4£577
Thu 12/620:05LHR - SJU
3 stops34h 26mMultiple Airlines
Thu 19/609:30SJU - LHR
2 stops30h 30mMultiple Airlines
Deal found 28/4£609
Tue 9/907:35LGW - SJU
2 stops15h 55mIberia
Wed 24/913:55SJU - LGW
2 stops24h 35mIberia
Deal found 28/4£617
Wed 4/608:45LCY - SJU
3 stops31h 46mMultiple Airlines
Mon 9/601:59SJU - LCY
3 stops34h 31mMultiple Airlines
Deal found 28/4£642
Thu 6/1110:40LGW - SJU
2 stops20h 37mTAP AIR PORTUGAL
Sat 15/1106:15SJU - LGW
2 stops23h 35mTAP AIR PORTUGAL
Deal found 28/4£657
Thu 6/1110:55STN - SJU
3 stops43h 16mMultiple Airlines
Sat 15/1118:41SJU - STN
3 stops35h 14mMultiple Airlines
Deal found 28/4£689
Mon 1/908:40LCY - SJU
2 stops19h 15mBritish Airways
Sat 27/908:30SJU - LCY
2 stops29h 00mBritish Airways
Deal found 28/4£759

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 29 April 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

Mon 12/5

08:15-09:36

2 stops30h 21m

San Juan Luis Munoz Marin Intl

Mon 19/5

08:00-06:30

1 stop17h 30m

£529

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 1/9

11:30-18:30

1 stop12h 00m

San Juan Luis Munoz Marin Intl

Sat 27/9

15:58-10:35

1 stop13h 37m

£549

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 30/6

12:10-00:49

1 stop17h 39m

San Juan Luis Munoz Marin Intl

Wed 9/7

07:20-09:35

1 stop21h 15m

£564

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Tue 9/9

14:00-01:11

1 stop16h 11m

San Juan Luis Munoz Marin Intl

Tue 23/9

02:06-18:55

3 stops35h 49m

£570

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 13/6

08:15-23:59

1 stop20h 44m

San Juan Luis Munoz Marin Intl

Wed 25/6

06:00-06:30

1 stop19h 30m

£576

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 13/6

12:10-00:49

1 stop17h 39m

San Juan Luis Munoz Marin Intl

Fri 20/6

15:00-09:35

1 stop13h 35m

£577

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 12/6

20:05-01:31

3 stops34h 26m

San Juan Luis Munoz Marin Intl

Thu 19/6

09:30-21:00

2 stops30h 30m

£609

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Tue 9/9

07:35-18:30

2 stops15h 55m

San Juan Luis Munoz Marin Intl

Wed 24/9

13:55-19:30

2 stops24h 35m

£617

LondonSan Juan

LCY - SJU

LCYSJU

London City

Wed 4/6

08:45-11:31

3 stops31h 46m

San Juan Luis Munoz Marin Intl

Mon 9/6

01:59-17:30

3 stops34h 31m

£642

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Wed 21/5

06:35-20:02

3 stops42h 27m

San Juan Luis Munoz Marin Intl

Sun 25/5

18:15-23:20

2 stops24h 05m

£721

Flights are sorted by cheapest return flights first.

Deals found on 27/4

Showing 1-10 of 39 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 25 April 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 29 April 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.

What is the cheapest day to fly from London to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the cheapest time to fly return from London to Luis Munoz Marin Intl. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Monday mornings when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Luis Munoz Marin Intl by month

Plan your trip to Luis Munoz Marin Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan Luis Munoz Marin Intl Airport ranges from 55.0 - 156.0 inches per month. November is typically the wettest month, when rainfall can reach 156.0 mm. March is typically the driest time to visit San Juan Luis Munoz Marin Intl Airport when rainfall is around 55.0 mm.

Temperature in Luis Munoz Marin Intl by month

Plan your trip to Luis Munoz Marin Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan Luis Munoz Marin Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 25.0 C).

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 29 April 2025.
See what other customers who have flown with Delta, KLM and United Airlines from London to San Juan have to say. 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.

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very Good

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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, Icelandair (£529), JetBlue (£537), and Iberia (£617) offers the cheapest pricing from London to San Juan Luis Munoz Marin Intl Airport. Icelandair is priced at 19% 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 Iberia (£510), Avianca (£583), and TAP AIR PORTUGAL (£626).

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

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

  • 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 £28 per day.

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

  • 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 29 April 2025.

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 29 April 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£421Average£553FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IcelandairCheapest£427Average£628FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£440Average£664FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IberiaCheapest£508Average£766FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£561Average£712FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£875Average£1,133FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic 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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