Cheap flights from London to San Juan Luis Munoz Marin Intl Airport from £276

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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SJU
17 Jan — 24 Jan1
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 February, booked 75 days in advance, depart on a Monday or Tuesday and return on a Wednesday

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 18 December 2025.

Thu 25/1212:20LHR - SJU
1 stop17h 39mJetBlue
Mon 29/1201:59SJU - LHR
1 stop15h 41mJetBlue
Deal found 17/12£711
Tue 30/1209:20LHR - SJU
1 stop18h 36mJetBlue
Thu 8/105:01SJU - LHR
1 stop24h 29mJetBlue
Deal found 17/12£726
Tue 30/1209:20LHR - SJU
1 stop18h 36mJetBlue
Sat 10/108:00SJU - LHR
1 stop18h 55mJetBlue
Deal found 17/12£749
Tue 30/1209:20LHR - SJU
1 stop14h 05mJetBlue
Sat 24/106:05SJU - LHR
1 stop34h 40mJetBlue
Deal found 17/12£758
Fri 26/1218:30LHR - SJU
2 stops53h 23mTAP AIR PORTUGAL
Fri 9/106:01SJU - LHR
2 stops36h 39mTAP AIR PORTUGAL
Deal found 17/12£760
Fri 26/1208:05LHR - SJU
1 stop22h 54mJetBlue
Fri 9/105:01SJU - LHR
1 stop24h 29mJetBlue
Deal found 17/12£764
Wed 17/1209:20LHR - SJU
1 stop18h 34mJetBlue
Wed 25/212:15SJU - LHR
1 stop14h 40mJetBlue
Deal found 16/12£793
Tue 30/1206:05LHR - SJU
2 stops18h 49mMultiple Airlines
Sat 24/107:10SJU - LHR
1 stop22h 20mMultiple Airlines
Deal found 17/12£798
Mon 29/1209:20LHR - SJU
1 stop18h 36mJetBlue
Sat 10/108:00SJU - LHR
1 stop18h 55mJetBlue
Deal found 16/12£802
Thu 25/1212:20LHR - SJU
1 stop14h 14mJetBlue
Wed 31/1211:40SJU - LHR
1 stop17h 50mJetBlue
Deal found 17/12£827
Wed 24/1212:20LHR - SJU
1 stop18h 39mJetBlue
Tue 30/1220:55SJU - LHR
1 stop20h 45mJetBlue
Deal found 17/12£832
Fri 26/1216:40LGW - SJU
2 stops55h 13mMultiple Airlines
Fri 9/111:45SJU - LGW
1 stop14h 15mMultiple Airlines
Deal found 17/12£846

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 18 December 2025.

Round-trip from

£526

One-way from

£276

Popular in

December

Cheapest in

September

Average price

£959
JetBlue
  • JetBlue
  • 13/1-26/1
  • 2 total stops
  • 35h 59m total
  • London to San Juan
1/3
  • 1/3
  • 2 total stops
  • 33h 29m total
  • London to San Juan
Highest demand for flights based on searches. 5% potential increase in price (£29 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Average for round-trip flights in December 2025

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 December 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

Fri 16/1

12:20-00:58

1 stop16h 38m

San Juan Luis Munoz Marin Intl

Mon 26/1

06:05-09:30

1 stop23h 25m

£547

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Sun 18/1

08:55-19:55

1 stop15h 00m

San Juan Luis Munoz Marin Intl

Sun 25/1

21:25-19:30

1 stop18h 05m

£585

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Tue 13/1

13:00-16:27

2 stops31h 27m

San Juan Luis Munoz Marin Intl

Fri 23/1

11:34-10:00

1 stop18h 26m

£590

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Sat 28/2

08:50-19:55

1 stop15h 05m

San Juan Luis Munoz Marin Intl

Mon 9/3

21:25-20:00

1 stop18h 35m

£618

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Sat 7/3

16:20-17:05

2 stops28h 45m

San Juan Luis Munoz Marin Intl

Sat 14/3

18:30-23:35

2 stops25h 05m

£619

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 14/1

13:00-03:25

1 stop18h 25m

San Juan Luis Munoz Marin Intl

Sun 18/1

03:58-10:00

1 stop26h 02m

£636

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 16/1

11:55-15:35

3 stops31h 40m

San Juan Luis Munoz Marin Intl

Mon 26/1

06:00-10:55

3 stops24h 55m

£639

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sat 28/2

10:00-19:55

1 stop13h 55m

San Juan Luis Munoz Marin Intl

Mon 9/3

21:25-21:00

1 stop19h 35m

£645

LondonSan Juan

LCY - SJU

LCYSJU

London City

Wed 14/1

09:50-09:47

3 stops27h 57m

San Juan Luis Munoz Marin Intl

Thu 22/1

06:00-09:20

3 stops23h 20m

£649

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 19/2

10:40-03:54

2 stops21h 14m

San Juan Luis Munoz Marin Intl

Thu 26/2

15:40-15:50

2 stops20h 10m

£650

Flights are sorted by cheapest return flights first.

Deals found on 17/12

Showing 1-10 of 60 results
1
2
3
...
6

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 12 December 2025.

The best time to book flights from London to San Juan Luis Munoz Marin Intl Airport is 75 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, June is the cheapest month in which you can book a flight from London to San Juan Luis Munoz Marin Intl Airport (average of £440). Flying from London to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of £544). 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 December 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 23% 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 52% 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 £606.

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 18 December 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.

Entertainment

6.9

Food

6.7

Crew

8.1

Boarding

7.6

Overall

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.

Entertainment

6.9

Food

6.7

Crew

8.1

Boarding

7.6

Overall

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.

Entertainment

6.9

Food

6.7

Crew

8.1

Boarding

7.6

Overall

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.

Entertainment

6.9

Food

6.7

Crew

8.1

Boarding

7.6

Overall

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.

Entertainment

6.9

Food

6.7

Crew

8.1

Boarding

7.6

Overall

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.

Entertainment

6.9

Food

6.7

Crew

8.1

Boarding

7.6

Overall

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, TAP AIR PORTUGAL, and British Airways fly from London to San Juan Luis Munoz Marin Intl Airport in about 16h 38m. The time it takes to get you to your destination can typically vary by up to 11h 02m. Airlines will cover a distance of 4179 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 (£334), Finnair (£451), and JetBlue (£460) 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?

  • 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 £23 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, June is the cheapest month in which you can book a flight from London to San Juan Luis Munoz Marin Intl Airport (average of £440). Flying from London to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of £544). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 December 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 18 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£334Average£1,127FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£451Average£550FlexibilityNo cancel feeOn-time76%
Search Finnair flights
JetBlueCheapest£458Average£611FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IcelandairCheapest£487Average£653FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
IberiaCheapest£502Average£873FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£541Average£956FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.