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Cheap flights from London to San Juan from £240

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SJU
4 Nov — 11 Nov1
1 adult

The best prices from London to San Juan are usually found in January or November, booked 28 days in advance, depart on a Monday or Tuesday and return on a Wednesday

Find flights from London to San Juan within your budget

Customise your flight search to find flights from London to San Juan 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 1,015,184 searches. Data last updated 30 Oktober 2024.

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Fly to

Any airport

Route

Depart

Return

Price

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

So 9/2

07:00-10:37

3 stops31h 37m

£240

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Di 21/1

08:25-19:12

1 stop14h 47m

£520

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Sa 18/1

11:00-14:42

2 stops31h 42m

£264

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mo 11/11

21:40-11:40

1 stop18h 00m

£561

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mi 27/11

08:25-03:13

1 stop22h 48m

£568

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sa 12/4

16:25-03:53

2 stops40h 28m

£574

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fr 7/2

07:35-10:23

3 stops30h 48m

£270

LondonSan Juan

LCY - SJU

LCYSJU

London City

Fr 7/2

08:40-19:45

2 stops15h 05m

£640

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mo 30/12

20:45-20:34

2 stops27h 49m

£698

LondonSan Juan

LCY - SJU

LCYSJU

London City

So 9/2

20:05-22:52

2 stops30h 47m

£771

Flights are sorted by cheapest first

Deals found on 27/10

Showing 1-10 of 42 results
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Cheap flight deals from London to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to San Juan (PR1). 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 30 Oktober 2024.

Round-trip from

£489

One-way from

£270

Popular in

August

Cheapest in

January
JetBlue
  • JetBlue
  • 29/1-13/2
  • 2 total stops
  • 34h 45m total
  • London to San Juan
Search Deals
7/2
  • 7/2
  • 3 total stops
  • 30h 48m total
  • London to San Juan
Search Deals
High demand for flights, 25% potential price rise
Search Deals
Best time to find cheap flights, 18% potential price drop
Search Deals

Find flight deals from London to San Juan

Cheapest flights from London to San Juan
Explore the most affordable flight options available from London to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 Oktober 2024.

Di 5/1106:10LHR - SJU
1 stop17h 35mFinnair
Do 21/1112:55SJU - LHR
2 stops17h 30mFinnair
Deal found 28/10£488
Mo 25/1107:40LGW - SJU
2 stops23h 54mMultiple Airlines
Do 28/1121:25SJU - LGW
1 stop28h 35mMultiple Airlines
Deal found 28/10£490
Mi 27/1108:25LHR - SJU
1 stop22h 48mIcelandair
Di 3/1204:10SJU - LHR
1 stop12h 35mIcelandair
Deal found 29/10£490
Do 14/1113:40LHR - SJU
3 stops33h 14mMultiple Airlines
Di 19/1119:59SJU - LHR
3 stops35h 26mMultiple Airlines
Deal found 28/10£536
Sa 7/1208:25LHR - SJU
1 stop14h 54mJetBlue
Fr 13/1204:10SJU - LHR
1 stop12h 35mJetBlue
Deal found 29/10£548
Di 10/1216:35LGW - SJU
2 stops34h 23mTAP AIR PORTUGAL
Do 12/1215:45SJU - LGW
2 stops20h 05mTAP AIR PORTUGAL
Deal found 29/10£600
Di 10/1206:00LHR - SJU
2 stops20h 58mTAP AIR PORTUGAL
Do 12/1215:45SJU - LHR
2 stops21h 45mTAP AIR PORTUGAL
Deal found 29/10£601
So 15/1209:15LHR - SJU
1 stop14h 30mIberia
So 12/118:20SJU - LHR
1 stop35h 20mIberia
Deal found 28/10£641
Do 14/1110:00LCY - SJU
3 stops28h 07mMultiple Airlines
Di 19/1119:59SJU - LCY
3 stops33h 26mMultiple Airlines
Deal found 28/10£677
Di 24/1211:00STN - SJU
3 stops26h 47mMultiple Airlines
Mo 30/1223:25SJU - STN
3 stops30h 35mMultiple Airlines
Deal found 28/10£748
Sa 7/1211:55LGW - SJU
2 stops34h 40mIcelandair
Sa 14/1206:01SJU - LGW
2 stops24h 54mIcelandair
Deal found 29/10£770
Mi 4/1210:00LHR - SJU
1 stop18h 36mLufthansa
So 8/1214:10SJU - LHR
2 stops42h 50mLufthansa
Deal found 28/10£889

Best time to book a flight from London to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan 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.

Travel insights for flights from London to San Juan

Get recent, data-driven insights about flights from London to San Juan including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London to San Juan?

Use this chart to determine the optimal time to book a return flight from London to San Juan. Price data was last updated on 25 October 2024.

Booking 28 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to San Juan. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Find deals

What is the cheapest month to book a flight from London to San Juan?

Currently, April is the cheapest month in which you can book a flight from London to San Juan (average of £631). Flying from London to San Juan in July is currently the most expensive (average of £894). 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 San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 Oktober 2024.

It’s optimal to fly from London to San Juan in the morning. By choosing this option you can save up to 19% on the cost of your flight, compared to a flight in the evening.

What is the cheapest day to fly from London to San Juan?

Use this chart to determine the cheapest time to fly return from London to San Juan. Price data was last updated on 27 October 2024.

Travellers seeking maximum savings on their London to San Juan flight should consider departing on Tuesday 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.

Find deals

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan 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 when rainfall is around 55.0 mm.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, 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 San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated 30 Oktober 2024.
To help decide which airline to fly from London to San Juan, see what other customers have to say about TAP AIR PORTUGAL, Icelandair and Iberia. 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.
KLM
7.8
Good
1,352 reviews
Check prices

Entertainment

7.2

Boarding

7.9

Comfort

7.7

Crew

8.4

Food

7.3

Overall

7.8

Reviews

1 / 10

Liked the service, seating was ok but the seat supports where in a way that one couldn’t stretch your legs

KLM
7.8
Good
1,352 reviews
KLM
7.8
Good
1,352 reviews
Check prices

Entertainment

7.2

Boarding

7.9

Comfort

7.7

Crew

8.4

Food

7.3

Overall

7.8

Reviews

1 / 10

Liked the service, seating was ok but the seat supports where in a way that one couldn’t stretch your legs

Finnair
7.7
Good
1,318 reviews
KLM
7.8
Good
1,352 reviews
Check prices

Entertainment

7.2

Boarding

7.9

Comfort

7.7

Crew

8.4

Food

7.3

Overall

7.8

Reviews

1 / 10

Liked the service, seating was ok but the seat supports where in a way that one couldn’t stretch your legs

Virgin Atlantic
7.6
Good
667 reviews
KLM
7.8
Good
1,352 reviews
Check prices

Entertainment

7.2

Boarding

7.9

Comfort

7.7

Crew

8.4

Food

7.3

Overall

7.8

Reviews

1 / 10

Liked the service, seating was ok but the seat supports where in a way that one couldn’t stretch your legs

JetBlue
7.5
Good
3,520 reviews
KLM
7.8
Good
1,352 reviews
Check prices

Entertainment

7.2

Boarding

7.9

Comfort

7.7

Crew

8.4

Food

7.3

Overall

7.8

Reviews

1 / 10

Liked the service, seating was ok but the seat supports where in a way that one couldn’t stretch your legs

United Airlines
7.4
Good
9,249 reviews
KLM
7.8
Good
1,352 reviews
Check prices

Entertainment

7.2

Boarding

7.9

Comfort

7.7

Crew

8.4

Food

7.3

Overall

7.8

Reviews

1 / 10

Liked the service, seating was ok but the seat supports where in a way that one couldn’t stretch your legs

Related info for your journey

Find useful and relevant information for your journey from London to San Juan. 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 round-trip?

    Cheapflights users have booked flights from London to San Juan round-trip from £489. Other airlines that can offer you cheap pricing are Icelandair, from £490, and Finnair, from £526. JetBlue is priced at 23% 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 one-way?

    The cheapet airlines for a one-way flight from London to San Juan are JetBlue (£520), Avianca (£561), and Icelandair (£568).

  • What are the most popular routes from London to San Juan?

    The most popular route from London to San Juan is London Heathrow - San Juan Luis Munoz Marin Intl. You may also consider London Gatwick - San Juan Luis Munoz Marin Intl or London City - San Juan Luis Munoz Marin Intl.

  • Where are the most common stopover locations when flying from London to San Juan?

    The most popular stopover on flights from London to San Juan is Madrid. New York sees the second most layovers for non-direct flights flying from London to San Juan.

  • What are some popular things to do or see while on a stopover in Madrid?

    Spain Building, Plaza Mayor, and Puerta del Sol are the most popular attractions in Madrid if you're in need of something to do during your stopover. Spain Building, Plaza Mayor and Puerta del Sol are located about 8.5 mi, 8.6 mi, and 8.4 mi, respectively from Madrid Barajas if you are interested in checking them out. Those on a stopover in Madrid in need of a car hire can book one at Madrid Barajas for about £24.

  • What are some popular points of interest to see during a stopover in New York?

    Times Square, New York City Center, and August Wilson Theater are the most popular attractions in New York if you're in need of something to do during your stopover. Times Square, New York City Center, and August Wilson Theater can be accessed by travelling approximately 13.6 mi, 13.6 mi, and 13.7 mi, respectively from New York John F Kennedy Intl. Travellers in need of a car in New York can hire one for about £43 per day.

  • Where are the least popular stopover locations for London to San Juan flights?

    London to San Juan flights that have stopovers will least frequently stop in Miami.

  • Can I find deals for flights from London to San Juan that include hotel bookings?

    Yes. In addition to deals on London to San Juan flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to San Juan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to San Juan.

  • Can I find deals for business class flights from London to San Juan?

    Yes. Cheapflights offers flight deals from London to San Juan 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?

    Currently, April is the cheapest month in which you can book a flight from London to San Juan (average of £631). Flying from London to San Juan in July is currently the most expensive (average of £894). 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 8 airlines flying from London to San Juan

Discover the top 8 airlines that operate flights from London to San Juan. 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 1,015,184 searches. Data last updated 30 Oktober 2024.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£348Average£581FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Virgin AtlanticCheapest£356Average£621FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£439Average£603FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
FinnairCheapest£440Average£590FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£464Average£745FlexibilityNo cancel feeOn-time77%
Search Iberia flights
United AirlinesCheapest£514Average£869FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£515Average£972FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£580Average£795FlexibilityNo 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 San Juan?

Cheapflights helps you search for flights from London to San Juan via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from London to San Juan?

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 London to San Juan.

Can Cheapflights find flights from London to San Juan with no change fees?

Yes, we can. To see specific flights from London to San Juan 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 London to San Juan become cheaper?

Not ready to book yet? You can track prices for flights from London to San Juan on Cheapflights with our Price Alert feature and get notified when better prices are available.

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